1879340中文资料

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93334中文资料

UNISONIC TECHNOLOGIES CO., LTD93334LINEAR INTEGRATED CIRCUITHIGH ENERGY IGNITION CIRCUITDESCRIPTIONThis device is designed to use the signal from a reluctor type ignition pickup to produce a well controlled output from a power darlington output transistor.FEATURES* Very Low Peripheral Component Count * No Critical System Resistors* Wide Supply Voltage Operating Range (4.0V ~ 24V) * Overvoltage Shutdown (30V)* Dwell Automatically Adjusts to Produce Optimum Stored Energy without Waste* Externally Adjustable Peak Current * Transient Protected Inputs and Outputs*Pb-free plating product number: 93334LORDERING INFORMATIONOrder NumberNormal Lead Free PlatingPackage Packing93334-S08-R 93334L-S08-R SOP-8 Tape Reel 93334-S08-T 93334L-S08-T SOP-8 TubePIN CONFIGURATIONOUTC S 2V CCI LSENS GNDPOWER GNDS 1BLOCK DIAGRAM AND TYPICAL APPLICATIONFigure 1ReluctorPickup1.35HComponent ValuesPickup Series resistance = 800Ω±10% @ 25℃, inductance= 1.35H @ 1.0kHz @ 15VrmsCoil Leakage L=0.6mH, primary R=0.43Ω±5% @ 25℃, primary L=7.5mH ~ 8.5mH @ 5.0AR L Load resistor for pickup=10Ω±20%R A, R B Input buffer resistors provide additional transient protection to the already clamped inputs=20k±20%C1, C2For reduction of high frequency noise and spark transients induced in pick-up and leads; optional and non-criticalR BAT Provides load dump protection (but small enough to allow operation at V BAT =4.0V) =300Ω±20% CFilter Transient filter on V CC, non-criticalC DWELL Stores reference, circuit designed for 0.1µF±20%R GAIN R GAIN/R D1 sets the DC gain of the current regulator =5.0k±20%R D2R D2/R D1 set up voltage feedback from R SR S Sense resistor (P D A G in thick film techniques) =0.075Ω±30%R DRIVE Low enough to supply drive to the output Darlington, high enough to keep V CE(SAT) of the I C below Darlington turn-on during load dump = 100Ω±20%, 5.0WR D1Starting with 35Ω assures less than 5.5A, increasing as required to set 5.5A R D1=(I O(PEAK) R S – V REF)/((V REF/R D2)-(1.4/R GAIN))-(≈100Ω)ABSOLUTE MAXIMUM RATINGSPARAMETER SYMBOLRATING UNIT 24Power Supply Voltage-Steady State Transient 300ms or less V CC 90V300 mAOutput Sink Current-Steady State Transient 300ms of less I OUT(SINK)1.0 A1.05 WPower Dissipation Derate above 25°C P D12 mW/°C Junction Temperature T J +125 °C Operating Temperature T OPR -20~+85 °C Storage Temperature T STG -40 ~ 150 °C Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. The device is guaranteed to meet performance specification within 0 ~+70 operating temperature range and assured by design from -20 ~+85 . ELECTRICAL CHARACTERISTICS (V CC = 13.2V DC , circuit of Figure 3, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITV BAT =4.0V DC 3.5 V BAT =8.0V DC 7.2V BAT =12.0V DC 10.4 Internal Supply Voltage, Pin 6 V CC V BAT =14.0V DC11.8VDCV BAT =4.0V DC 3.0 3.4 V BAT =6.0V DC 4.0 5.2V BAT =8.0V DC 4.6 5.3Ignition Coil Current Peak,Cranking RPM 2.0Hz ~ 27HzI PEAK V BAT =10.0V DC 5.15.4 A PEAKF =33Hz 5.1 5.5 F =133Hz 5.1 5.5F =200Hz 4.2 5.4F =267Hz 3.4 4.4 Ignition Coil Current Peak, Normal RPMI PEAK F =333Hz 2.7 3.4 A PEAK F =33Hz 7.5 14.0F =133Hz 5.0 5.9F =200Hz 4.0 4.6F =267Hz 3.0 3.6 Ignition Coil On-Time, Normal RPM RangeT ON F =333Hz 2.3 2.8ms Shutdown VoltageV BAT 25 30 35 V DCTurn-on 360Input Threshold (Static Test) V THR Turn-off 90mV DCInput Threshold Hysteresis V HYS 75 mV DCTurn-on 1.8Input Threshold (Active Operation)V THR Turn-off 1.5 V DCTotal Circuit Lag from ts (Figure 1) until Ignition Coil Current Falls to 10%60 120 µs Ignition Coil Current Fall Time (90% ~ 10%)4.0 µs V BAT =10V DC120V BAT =30V DC280Saturation Voltage IC Output (Pin 7) (R DRIVE = 100Ω)V CE(SAT)V BAT =50V DC540 mV DC Current Limit Reference, Pin 8 V REF120 160 190 mV DCLGNITION COIL CURRENT VERSUS FREQUENCY / PERIOD333I O U T (A )52001331010070152050253330msFrequency, f (Hz)。

NCA3800-2010中文版[1]

NCA-3800NCA-3800金属材料组织的质量体系程序NCA-3810适用范围NCA-3800是对证书持有人，材料组织(NCA-3820)以及被认可的供应商(NCA-3855.3)等实体机构提出的要求。

这些实体涉及到定义的术语(NCA-9200)中的运营和过程的执行，采购和制造服务，材料和原始资料供给及不合格材料。

NCA-3811限制以下限制适用于被认可的供应商:(a)被认可的供应商不能批准其他材料供应商或服务提供商影响材料。

(b)被认可的供应商可以采用一个被证书持有者或材料组织[NCA-3855.3(b)]认可的质量体系NCA-3812排除除了属于NB-/NC-/ND-/NE-/NF-/NG-2610外的小尺寸产品的材料，或本卷允许提供带合格证的材料，不必满足NCA-3800的要求，但应满足下列要求:(a)经确认的材料试验报告或合格证明应满足NCA-3862.1的各项要求。

(b)仅按1级建造的材料，其识别和标记应满足NCA-3856.3的各项要求。

NCA-3820材料机构的认可或资格证明(a)材料机构在获得本学会颁发的质量体系证书后应被认可，该证书是在本学会充分核实材料机构的质量体系大纲后颁发的。

(b)另一种认可方法为证书持有者(NCA-3461、NCA-3561、NCA-3661或NCA-3761)或己认可的包括此活动范围的材料机构[NCA-3820(a)]，按照NCA-3842的各项要求，通过评定机构的质量体系大纲来鉴定未经本学会认可的材料机构。

(c)证书持有者可在证书规定的范围内供应材料。

在这种情况下，不需要质量体系证书，材料使用者对这种证书持有者也不需作调查、评定或监查。

NCA-3830材料组织的责任材料机构应负责制定、编制、执行和维护符合NCA-3850各项要求和适用于其活动范围的质量体系大纲:(a)建立和保持可跟踪材料或原材料的措施，而使其处于控制(NCA-3856)下。

(b)控制制造期间的质量，包括材料或原材料的试验、检测、修理和处理的控制(NCA-3857,NCA-3858)。

HHBTA 化学品安全技术说明书

化学品安全技术说明书HHBTA版本 1.02 修订日期 26.11.2021打打打打 26.11.2021 100000002851 1/14部分一化学品及企业标识产品鉴别人贸易名称 HHBTA有关的确定了的物质或混合物的用途和建议不适合的用途用途用于清洁剂和消毒剂的原料生产者或供应商的详情制造商或供应商名称 Sasol Chemicals, a division of Sasol South Africa Ltd 地址Sasol Place, 50 Katherine StreetSandton 2090South Africa电话号码+27103445000电子邮件地址 ***************************应急咨询电话+44 (0)1235 239 670 (Europe, Israel, Africa, Americas) +44(0)1235 239 671 (Middle East, Arabic African countries) +65 3158 1074 (Asia Pacific) +86 400 120 6011 (China 中国) +27 (0)17 610 4444 (South Africa) 0800 112 890 RSA-Local only +61 (2) 8014 4558 (Australia)化学品安全技术说明书HHBTA版本 1.02 修订日期 26.11.2021打打打打 26.11.2021 100000002851 2/14部分二危险性概述物质或混合物的分类GHS 危险性类别分类GHS 分类和标签: 遵从GB 13690, GB 15258 和 GB 30000.2 ~ GB 30000.29 (GHS 2011)急性毒性 (经口) 类别 3急性毒性 (经皮) 类别 3皮肤腐蚀/刺激类别 1B 严重眼睛损伤/眼睛刺激性类别 1 急性（短期）水生危害类别2长期水生危害类别 2GHS 标签要素象形图:信号词 : 危险危险性说明: H301 + H311 吞咽或皮肤接触可致中毒。

MAX1879EVKIT中文资料

General DescriptionThe MAX1879, in conjunction with a P-channel MOSFET and a current-limited wall-mount adapter with an output voltage between +4.7V to +20V, allows safe and quick charging of a single lithium-ion (Li+) cell.The MAX1879 evaluation kit (EV kit) is a complete, fully assembled and tested Li+ battery charger. Jumpers on the EV kit allow easy adjustment to a +4.1V or +4.2V battery regulation voltage. A light-emitting diode (LED)indicates the cell’s charging status.Featureso Simple Stand-Alone Li+ Charger o Low Power Dissipationo Safely Precharges Over-Discharged Cellso Top-Off Charging to Achieve Full Battery Capacity o 8-Pin µMAX ®Package o Surface-Mount Construction o Fully Assembled and TestedEvaluates: MAX1879MAX1879 Evaluation Kit________________________________________________________________Maxim Integrated Products 119-2177; Rev 1; 9/05Component ListOrdering InformationFor pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .µMAX is a registered trademark of Maxim Integrated Products, Inc.E v a l u a t e s : M A X 1879MAX1879 Evaluation Kit 2_______________________________________________________________________________________Quick StartThe MAX1879 EV kit is a fully assembled and tested sur-face-mount board. Follow the steps below to verify board operation. Do not plug the WALL CUBE in until indicated.1)Install a shunt across pins 1 and 2 of jumper JU1 (TSEL)for a minimum 34ms on-time top-off pulse width.2)Install a shunt across jumper J U2 (THERM) to dis-able the temperature-monitoring function.3)Verify that a shunt is not across jumper JU3 (ADJ) ifcharging a +4.2V Li+ battery. Install a shunt across jumper JU3 if charging a +4.1V Li+ battery. 4)Connect a 6V current-limiting (≤1A) power supplyacross the EV kit ’s WALL CUBE and GND terminals.5)Place a voltmeter across the EV kit ’s BATT+ andBATT- terminals.6)Observe correct Li+ cell polarity.Connect a sin-gle-cell Li+ battery across the EV kit ’s BATT+ and BATT- terminals. The LED turns on if the battery voltage is below the predetermined voltage (4.1V or 4.2V) and greater than +2.5V. See Table 4 for addi-tional LED status descriptions.7)The LED turns off once the Li+ cell has beencharged to the predetermined voltage.Detailed DescriptionThe MAX1879 EV kit is a fully assembled and tested single Li+ battery charger. The EV kit contains an exter-nal p-channel MOSFET for current switching and can deliver up to 1A of current to an Li+ battery.The EV kit contains a jumper that sets the battery (BATT)regulation voltage to +4.1V or +4.2V. An external resis-tor can also adjust the regulation voltage from +4.0V to +4.2V. An LED indicates the charging status of the bat-tery. The maximum charging time is 6.25 hours.The MAX1879 employs thermistor feedback to prequalify the Li+ cell ’s temperature for fast charging. The EV kit con-tains a jumper that allows the user to bypass this feature or to connect an external thermistor to the EV kit board.Input SourceThe input source for the MAX1879 EV kit must be a current-limited supply capable of continuous short-circuit operation. The supply should have a current limit of ≤1A and an output voltage between +4.7V and +20V.Connect a current-limited wall cube to power jack J 1(center pin is the positive terminal); otherwise, connect a current-limited power-supply across the WALL CUBE and GND PC pads. Current-limited power sources with higher charge currents can be used, but diode D1 and MOSFET P1 must be rated accordingly.Jumper SelectionThe MAX1879 EV kit features jumpers (J U1, J U2, and JU3) to configure the circuit for optimal charging perfor-mance and evaluation.Jumper JU1 sets the minimum on-time pulse width. See Table 1 for the J U1 shunt configuration to select the appropriate top-off pulse width. Refer to the Selecting Minimum On-Time section in the MAX1879 data sheet for information on selecting the minimum on-time pulse width in top-off mode.(THERM) to a 10k Ωresistor, thus disabling temperature qualification. To enable temperature qualification,remove the shunt from J U2 and connect a thermistor between the THERM and GND pads. The thermistor should be 10k Ωat +25°C and have a negative temper-ature coefficient. See Table 2 for the JU2 configuration.Refer to the Thermistor section in the MAX1879 data sheet for other thermistor details.Jumper JU3 sets the battery regulation voltage. The EV kit comes with two voltage options, 4.2V (J U3 open)and 4.1V (J U3 closed). For other voltages (+4.0V to +4.2V), replace resistor R1. Refer to the Adjusting the Battery Regulation Voltage section in the MAX1879data sheet to select resistor R1. See Table 3 for the JU3configuration.The LED on the EV kit is driven by the CHG pin.Depending on the Li+ cell ’s charging status, the pin is low or high impedance, thus turning the LED on or off. If a thermistor is installed, and the cell temperature is unacceptable for fast charging, or the charger is in the precharging state, the LED blinks at 2Hz. The EV kit stops charging the cell during a temperature fault. See Table 4 for LED and CHG states.For driving logic circuits, remove the LED and install a 100k Ωpullup resistor from CHG to the logic supply of the CHG monitoring circuit. A logic-low signal appears at CHG when the charger is in fast-charge; otherwise, a logic high signal is detected. During the precharging or temperature fault state, the output logic signal alter-nates between low and high at a fixed frequency of 2Hz. See Table 4.Evaluates: MAX1879MAX1879 Evaluation Kit_______________________________________________________________________________________3E v a l u a t e s : M A X 1879MAX1879 Evaluation Kit 4_______________________________________________________________________________________Figure 1. MAX1879 EV Kit SchematicEvaluates: MAX1879MAX1879 Evaluation KitMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________5©2005 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products, Inc.Figure 2. MAX1879 EV Kit Component Placement Guide—Component SideFigure 3. MAX1879 EV Kit PC Board Layout—Component SideFigure 4. MAX1879 EV Kit PC Board Layout—Solder Side。

73111中文资料

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5 10 15 20 25 50 75 100 150 200 250 500 750 1000 1500 2000 2500 5000 5.6 3.96 3.23 2.8 2.5 1.77 1.44 1.25 1.0 0.88 0.79 .55 0.46 0.40 0.32 0.28 0.25 0.18 8.27 5.86 4.77 4.14 3.7 2.61 2.14 1.85 1.50 1.30 1.17 .82 0.68 0.59 0.48 0.41 0.37 0.26 10.5 7.42 6.06 5.25 4.7 3.30 2.71 2.35 1.90 1.60 1.49 1.0 0.86 0.74 0.61 0.50 0.47 0.33 0.004 0.008 0.012 0.016 0.020 0.040 0.060 0.080 0.12 0.16 0.20 0.40 0.60 0.80 1.20 1.60 2.00 4.00 10 7.07 5.77 5 4.5 3.3 2.7 2.25 1.9 1.3 1.5 1.0 .85 .73 .6 .52 .45 .33 73111 73112 73113 73114 73115 73120 73125 73130 73132 73133 73135 73137 73140 73145 73150 73152 73155 73160 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22 28.22

最强大脑王峰数字编码表

最强大脑王峰数字编码表【1-100】1 蜡烛、衣服、铅笔、树、鱼、雨、姨、意、义、遇、幺、妖、弯、多2 鹅、耳朵、儿子、娘、梁、粮、俩、鸭子、爱、恶、鳄、双、对3 耳朵、伞、山、丧、散、上、生、屁股、酸菜、蒜4 帆船、寺庙、士、死、事、私、施、屎、市、诗、师、小汽车5 秤钩、虎、呜、巫、母、武、舞、伍、手、五角星、壶6 勺子刘德华、陆、鹿、驴、牛、留、柳、路、妞、纽、扭、豆芽7 镰刀、妻、旗、气、齐天大圣、锄头、拐杖、起、鸡、漆、梯8 眼镜、发、罚、法、葫芦、麻花、链、坝、花、把9 哨子、啤酒、久、舅、旧、救、揪、狗、猫、韭菜10 棒球石头、石林、衣领、窑洞、妖洞、摇动、移动、要领11 筷子、走路、平行线、铁路、双杠、姨姨、雨衣、寓意、意义12 挂历、椅儿、婴儿、幺儿、鱼儿、鱼粮、姨娘、一双、一对、一两13 医生、衣裳、石山、失散、一生、衣伞14 钥匙、要死、多发、意思、遗失、轶事、意识、一世、玉石15 鹦鹉、义务、义乌、一壶、衣服、衣物、遗物、药物、玉壶16 石榴、石牛、石妞、一路、一溜、衣禄、一楼17 仪器、妖气、义务、遗弃、一起、玉器、一汽、石鸡、石刀18 哑巴、一把、泥巴、药吧、要发、石坝19 衣钩、要求、幺舅、石狗、石猫、依旧20 香烟、耳铃、爱你、耳洞21 鳄鱼、二姨妈、阿姨、恶医、恶意22 双胞、额娘、二两、双双、对对、鸳鸯、娘娘、兔儿、土鸭、涂鸦23 和尚、峨山、梁山、儿散、凉扇、鸭屁、爱上、耳环24 闹钟、、耳屎、爱死、饿死、屙屎、粮食25 二胡、恶虎、鸭蛋、鹅屋、儿屋、土屋26 河流、二流子、恶妞、二妞、二楼27 耳机、爱妻、恶妻、二鸡、两栖28 恶霸、二爸、二巴、土坝、土瓜、两发、凉瓜29 饿囚、土狗、按钮、瘦子、饿久30 三轮车、山洞、山岭、山林、森林、山石31 鲨鱼、鳝鱼、上衣、三姨、山妖、山药、山腰、狐狸32 扇儿、山鸭、山崖，山丫、生涯33 星星、水波、马桶、酸酸、34 三丝、生死、绳子、酸死、三思、丧事、上司35 山虎、散布、散步、山谷、珊瑚，上午36 山鹿山路、三楼、山牛、山妞、迷路、上路、上楼37 山鸡、三七花、丧气、生机、生气、神机、升旗38 妇女节、傻瓜、伞把、散发、伤疤、山霸王39 山丘散酒、三舅、三九感冒灵、喂药、三角形、酸角40 司令、失灵、尿桶、私通41 司仪、死鱼、四楼、示意、事宜42 柿儿死鹅、死鸭、示爱、死俩、死儿43 石山四川、丝衫、师生、瓷砖、慈善44 蛇、香蕉、逝世、试试、事事45 师父、师母、石虎、事物、食物、清明节46 饲料、思路、死路、4楼、死牛、私六47 司机、死机、死去、市区48 石板、丝瓜、司法、柿花、孤儿、死爸、市花49 湿狗、四舅、死狗、市酒、世界50 武林、武陵、舞林、虎胆、孤单51 工人武艺舞衣五姨52 鼓儿我儿子、我爱、武松、吾儿、五粮液、妩媚娘53 乌纱帽巫山、云南、午餐、舞扇、虎山54 武士、青年节、舞狮、无事、虎屎、虎视、故事55 火车、马克思、勾勾、呜呜、污物、虎屋56 葫芦无路、5楼、瞎子、乌牛、蜗牛、无聊57 武器、机关枪、无妻、光棍、乌鸡、无机、张无忌58 尾巴苦瓜、无法、和尚(无发)、我爸、虎爸59 蜈蚣武警、无救、棺材、乌狗、污垢60 榴莲柳林、漏洞、绿林、牛洞、纽洞、扭动61 儿童、牛医、牛衣、镂衣、路易、牛妖、扭腰62 牛儿、牛耳、扭耳、鹿儿、陆良、牛粮63 流沙(沙僧) 庐山、流散、硫酸、牛头山、绿伞64 螺丝牛屎、律师、烈士、流失、鹿死、劣势65 尿壶、牛屋、露骨、妞屋、落伍、螺母66 蝌蚪大顺、溜溜球、妞妞、禄禄、六路车67 油漆楼梯、漏气、牛气(冲天)、怒气68 喇叭路霸、牛爸、69 八卦牛角、溜狗、溜猫、绿球70 冰淇淋、麒麟、机灵、激灵、鸡蛋71 鸡翼机翼建党节、起义、歧义、机要、鸡药72 企鹅、妻儿、凄凉、鸡粮、乞儿73 花旗参凄惨、旗杆、气浪、鸡肝、沮丧74 骑士、气死、鸡屎、气势、歧视、启事75 西服、媳妇、去污、几乎76 汽油、气流、急流、激流、骑鹿、鸡肉77 机器人(叮当猫) 牛朗、织女、鹊桥、芦沟桥、凄凄惨惨、七喜78 青蛙西瓜、去吧、鸡爸、妻发、西华公园79 气球、汽酒、鸡狗、乞求、骑狗80 巴黎铁塔、百灵鸟、伤疤灵、发动、不动81 白蚁、建军节、白衣、白玉、护士、花衣、军队82靶儿83芭蕉扇巴山84巴士85宝物86八路87白旗白棋88爸爸89芭蕉90酒瓶91球衣92球儿93旧伞94酒寺首饰95酒壶96旧炉97旧旗98酒吧99舅舅00望远镜。

Tetrahedron Letters 47 (2006) 5341–5343

An eﬃcient electrophilic N-amination utilizing in situ generatedchloramine under phase transfer conditionsApurba Bhattacharya,a,*Nitin C.Patel,a Robert Erik Plata,a Michael Peddicord,b Qingmei Ye,b Luca Parlanti,b Venkatapuram A.Palaniswamy b and John A.Grosso baDepartment of Chemistry,Texas A&M University-Kingsville,Kingsville,TX 78363,United StatesbBristol-Myers Squibb Company,Process Research and Development Department,PO Box 191,New Brunswick,NJ 08903-0191,United StatesReceived 22December 2005;accepted 18May 2006Available online 13June 2006Abstract—An eﬃcient,one-pot,phase transfer N-amination technology was developed.The protocol utilizes chloramine,an inex-pensive and safe electrophilic aminating agent potentially viable for commercial manufacturing.Ó2006Elsevier Ltd.All rights reserved.As part of our ongoing industry-university collaborative research program established between Texas A&M Uni-versity-Kingsville and Bristol-Myers Squibb Co.,we needed an expeditious entry into a diverse spectrum of N-aminated pyrroles.1Although a number of electro-philic amination methodologies are well known,their utility is often limited by poor yields,prohibitive costs,and serious safety issues,making them unsuitable for large scale application.2An alternative N-amination of pyrroles and indoles utilizing chloramine (NH 2Cl)was recently reported by researchers at Bristol-Myers Squibb.3This N-amination protocol involves initial gen-eration of NH 2Cl from aqueous NH 4OH,NH 4Cl and bleach,followed by extraction of NH 2Cl with methyl tert -butyl ether (MTBE)from the aqueous mixture.The chloramine solution is dried with anhydrous CaCl 2and then reacted in a separate vessel with the pyrrole an-ion generated from NaH in DMF,to produce the corre-sponding N-aminated pyrroles.While this technology was invaluable during our early development eﬀorts and provided us with multi-gram supplies of N-amino-pyrroles,we sought improvements that would allow for greater safety,eﬃciency and operational simplicity.In the above procedure,because of the high solubility of chloramine in water and its limited solubility in MTBE (0.09M),large solvent volumes are required for eﬃcient,extractive removal of chloramine from theaqueous reaction mixture.4This reduces the overall reaction throughput.In addition,chloramine is not suf-ﬁciently stable for storage.On standing,chloramine dis-proportionates to NHCl 2and NCl 3,a shock-sensitive compound constituting a potential safety concern.5Devising a technology where chloramine would be instantaneously consumed as soon as it is generated could potentially circumvent these problems by avoiding any undesirable accumulation during the process.Based on this premise,we devised a cost eﬀective and practical one-pot,two phase (H 2O–MTBE)N-amination proto-col.The process can be accomplished in good yields and eﬃciency and oﬀers signiﬁcant advantages over the existing technologies in terms of throughput,safety,and operational simplicity.In the optimal procedure,chloramine is generated in the aqueous layer through oxidation of ammonia by NaOCl.At the same time,the substrate is deprotonated in the organic phase with the aid of a small amount of Aliquat-336(methyltrioctylammonium chloride)and promptly reacts with the small portion of chloramine present in the organic layer,aﬀording the desired N–NH 2derivative in high yield.An excess of base (aq NaOH)is necessary to eﬃciently achieve the pyrrole deprotonation.After reaction completion,the organic layer is separated and can be utilized directly in the next step without further puriﬁcation (Scheme 1).This process avoids accumulation of unreacted chlor-amine at any given time,thereby rendering this approach0040-4039/$-see front matter Ó2006Elsevier Ltd.All rights reserved.doi:10.1016/j.tetlet.2006.05.102*Corresponding author.Tel.:+13615932664;fax:+13615933597;e-mail:kfab002@Tetrahedron Letters 47(2006)5341–5343safe and viable for on-scale implementation.As opposed to the previously published chloramine N-amination protocol,this new procedure does not require the prepa-ration of the pyrrole anion under anhydrous conditions in a separate vessel or the drying of the diluted organic chloramine solution after the extractions.The low solu-bility of chloramine in organic solvents is no longer a limiting factor to the reaction throughput.The presence of the quaternary ammonium salt,Aliquat-336,is imper-ative;reactions conducted without Aliquat-336showed only trace amounts of the desired N-aminated product under otherwise identical conditions.Attempts to re-place Aliquat-336with several other surface active poly-ethylene glycol(PEG)type phase transfer agents such as Triton-X,were unsuccessful.6These conditions were also successfully applied to prepare a series of N-aminated heterocycles(pyrroles and indoles)in consistently high yield(Table1).A typical experimental procedure is as follows:aqueous sodium hypochlorite (58.76ml of ca.9%solution)was added over a period of20min,at room temperature,to a vigorously stirred mixture of3-methyl-1H-pyrrole-2,4-dicarboxylic acid diethyl ester(2g,8.9mmol)in MTBE(24ml,ammo-nium chloride(2.9g,53.2mmol),Aliquat-336(0.1g), aqueous NaOH(25.6ml of28.4%solution)and aqueous NH4OH(8.28ml of28%solution).The resulting reac-tion mixture was stirred at room temperature for an additional2–4h at the end of which time the complete disappearance of starting material and formation of product is observed by capillary GC and HPLC.The upper product-rich organic layer was separated from the spent aqueous layer and washed with aqueous Na2S2O3(40ml).The organic layer was then dried over anhydrous Na2SO4and evaporated in vacuo to produce 2.01g of1-amino-3-methyl-1H-pyrrole-2,4-dicarboxylic acid diethyl ester(94%yield).In summary,we have demonstrated an eﬃcient,one-pot,phase transfer catalyzed N-amination process utiliz-ing chloramine as an inexpensive electrophilic aminating agent which proved to be superior to the existing tech-nologies.This protocol is practical and safe and is potentially viable for on-scale manufacturing.Studies aimed at extending the scope of this technology are in progress in our laboratories.AcknowledgementsFinancial support provided by Bristol-Myers Squibb Company,the Petroleum Research Fund(PRF),The National Institute of Health(NIH)and The Welch Foundation is gratefully acknowledged.References and notes1.The program was aimed at giving BS/MS level studentsexposure to pharmaceutical process R&D in an academic setting.Chem.Eng.News2001,41.Table 1.Phase transfer catalyzed electrophilic N-amination of heterocycles with chloramine7Entry Substrate N-Aminated substrate Yield(%)1NHOEtOEtOCH3NOOEtOEtOCH32942NHOEtOEtOHNOOEtOEtOH2923NHOEtOEtONOOEtOEtO2964NHOEtOEtOPhNOOEtOEtOPh2945NH OOEtOEtONOOEtOEtO290629372915342 A.Bhattacharya et al./Tetrahedron Letters47(2006)5341–53432.For O-(2,4-dinitrophenyl)hydroxylamine see:(a)Salem-nick,G.;Nir,Z.Tetrahedron1972,28,3833;A detonation has been reported while using this reagent.See:Radha-krishna,A.S.;Loudon,G.M.;Miller,.Chem.1979,44,4836;For safety studies of substituted(nitro-phenyl)hydroxylamines see:Boyles,D.C.;Curran,T.T.;Parlett,.Proc.Res.Dev.2002,6,230;(b) Sheradsky,T.Tetrahedron Lett.1968,16,1909;For a review on electrophilic amination see:(c)Tamura,Y.;Minamikawa,J.;Ikeda,M.Synthesis1977,1.3.Hynes,J.,Jr.;Doubleday,W.W.;Dyckman, A.J.;Godfrey,J.D.,Jr.;Grosso,J.A.;Kiau,S.;Leftheris,K..Chem.2004,69,1368,and references cited therein.4.The concentration of NH2Cl was determined by iodometrictitration.5.Goehring,R.R.In Encyclopedia of Reagents for OrganicSynthesis;Paquette,L.A.,Ed.;Wiley:New York,1995;Vol.2,pp1052–1053.6.Bhattacharya,A.;Purohit,V.;Rinaldi,.Proc.Res.Dev.2003,7,254.7.NMR data for all the compounds synthesized are consistentwith their expected structures,as for instance:1-Amino-3-methyl-1H-pyrrole-2,4-dicarboxylic acid diethyl ester(entry1):1H NMR(400-MHz,DMSO-d6):d1.26(t,J=7.3,3H),1.32(t,J=7.3,3H),2.47(s,3H),4.18(q,J=7.3,2H),4.28(q,J=7.3,2H),6.41(s,2H,NH2),7.43(s,1H);13C NMR (100-MHz,DMSO-d6):d11.9,14.4,14.5,59.4,60.2,110.4, 119.9,128.4,130.9,161.5,163.7;HRMS(ESI+)calcd for (M+H+)C11H17N2O4241.1188,found241.1189.1-Amino-1H-pyrrole-2,4-dicarboxylic acid diethyl ester(entry2):1H NMR(400-MHz,DMSO-d6):d1.24(t,J=7.3,3H),1.27 (t,J=7.3,3H),4.16(q,J=7.3,2H),4.22(q,J=7.3,2H),6.50(s,2H,NH2),7.01(s,1H),7.50(s,1H);13C NMR(100-MHz,DMSO-d6):d15.0,15.1,60.4,60.9,112.4,115.8, 122.1,131.5,161.0,163.7;HRMS(ESI+)calcd for(M+H+) C10H15N2O4227.1032,found227.1034.1-Amino-3-ethyl-1H-pyrrole-2,4-dicarboxylic acid diethyl ester(entry3):1H NMR(400-MHz,DMSO-d6):d1.06(t,J=7.3,3H), 1.23(t,J=7.3,3H),1.29(t,J=7.3,3H),2.96(q,J=7.3, 2H),4.15(q,J=7.3,2H),4.25(q,J=7.3,2H),6.39(s,2H, NH2),7.40(s,1H);13C NMR(100-MHz,DMSO-d6):d 14.9,15.1,16.4,19.3,59.9,60.8,110.2,119.9,131.5,135.6, 161.8,164.0;HRMS(ESI+)calcd for(M+H+)C12H19N2O4 255.1345,found255.1336.1-Amino-3-phenyl-1H-pyrrole-2,4-dicarboxylic acid diethyl ester(entry4):):1H NMR(400-MHz,DMSO-d6):d0.85 (t,J=7.3,3H),1.03(t,J=7.3,3H),3.95(q,J=7.3,2H), 3.99(q,J=7.3,2H),6.50(s,2H,NH2),7.29(m,5H),7.55 (s,1H);13C NMR(100-MHz,DMSO-d6):d11.8,12.3,57.5, 58.2,108.3,124.9,125.2,128.4,128.9,133.0,159.1,161.7; HRMS(ESI+)calcd for(M+H+)C16H19N2O4303.1331, found303.1345.1-Amino-3-propyl-1H-pyrrole-2,4-dicarb-oxylic acid diethyl ester(entry5):1H NMR(400-MHz, DMSO-d6):d0.89(t,J=7.3,3H),1.25(t,J=7.1,3H), 1.31(t,J=7.1,3H),1.48(m,2H),2.95(t,J=7.8,2H), 4.16(q,J=7.1,2H),4.26(q,J=7.1,2H),6.43(s,2H, NH2),7.43(s,1H);13C NMR(100-MHz,DMSO-d6):d 14.2,14.3,14.5,24.5,27.4,59.4,60.2,109.9,119.6,131.0, 132.3,161.4,163.6;HRMS(ESI+)calcd for(M+H+) C13H21N2O4269.1501,found269.1488.1-Amino-5-chloro-1H-indole-2-carboxylic acid ethyl ester(entry6):1H NMR (400-MHz,DMSO-d6):d 1.35(t,J=7.3,3H), 4.36(q, J=7.3,2H),6.09(s,2H,NH2),7.11,(s,1H)7.32(dd, J=9.2,2.2,1H),7.60(d,J=9.2,1H),7.71(d,J=2.2, 1H);13C NMR(100-MHz,DMSO-d6):d14.5,60.8,106.3, 113.0,121.3,123.7,125.1,125.2,128.2,137.7,161.2;HRMS (ESI+)calcd for(M+H+)C11H12ClN2O2239.0587,found 239.0581.1-Amino-1H-indole-2-carboxylic acid ethyl ester (entry7):1H NMR(400-MHz,CD3OD):d1.41(t,J=7.3, 3H),4.39(q,J=7.3,2H),7.09(apparent t,J=8.1,1H), 7.14(s,1H),7.30(apparent t,J=8.1,1H),7.60(two overlapping d,J=9.9,2H);13C NMR(100-MHz, CD3OD):d15.1,62.1,108.9,112.2,122.0,123.6,124.9, 126.5,128.3,141.1,163.9;HRMS(ESI+)calcd for(M+H+) C11H13N2O2205.0977,found205.0974.A.Bhattacharya et al./Tetrahedron Letters47(2006)5341–53435343。

DIN 18799-1 CN

DIN 18799-1梯子装配第1部分:带侧横梁的爬梯安全技术要求和检验ICS 97.145 替代1995年版本以当前ISO出版标准实行，逗号在通篇中作为十进制标记。

目录页码前言 (1)1 范围 (2)2 涉及参考标准 (2)3概念 (2)4名称 (3)5安全要求 (3)5.1尺寸 (3)5.2设计特征 (4)5.3组成 (5)5.4假定设计 (6)6检测 (8)7组装和使用说明 (8)7.1组装说明 (8)7.2使用说明（梯子防坠落装置使用） (8)8铭牌 (9)8.1总则 (9)8.2梯子防坠落系统铭牌 (9)前言此标准由（Sonderbauten of the Normenausschu Bauwesen）技术委员会制定。

（建筑和民用工程师标准委员会）。

它包括指示89/106/EEC理事会的要求，并重视协调相关的欧洲标准。

DIN 18799标准系列由以下部分组成：第一部分带侧横粱的爬梯——安全技术要求和检验第二部分带中间横粱的爬梯——安全技术要求和检验第三部分烟囱用爬梯——安全技术要求和检验改正此标准与1995年8月版本标准有以下不同：a)规范严格了刚性锚固定链的改变（参考条款5.3.3.2与先前低级条款4.3.3.2）和加强了承载（参考先前低级条款5.4.3与先前低级条款4.4.3）。

b)标准升级以编辑身份修订和标准化。

早期版本DIN 18799—1：1995—03继续第2页到第9页所有尺寸以mm为单位1 范围本标准用于装配带侧横梁的爬梯（除了烟囱用爬梯，此类见DIN 18799-3）。

它为设计、确认和使用信息定义了相应的概念和指示。

2 涉及参考标准本标准混合了有期和无期的参考条目，和其他一些发行的规定。

这些标准化的参考条目在文本中相应的地方使用，并且标题清单如下。

对有期参考条目，仅仅当通过改正或修订版合并它时，关于任何这些出版物的后发的改正或修订版接受本标准。

对无期参考条目，以最新出版物中为准。

MAX1879

General DescriptionThe MAX1879 single-cell lithium-ion (Li+) battery chargerutilizes an efficient pulse-charging architecture to minimize power dissipation in portable devices. This architecture combines the efficiency of switch-mode chargers with the simplicity and low cost of linear chargers. This simple device, in conjunction with a current-limited wall cube and a PMOS transistor, allows safe and fast charging of a sin-gle Li+ cell.The MAX1879 initiates charging in one of three ways: bat-tery insertion, charger power-up, or toggling the THERM pin. Key safety features include continuous voltage and temperature monitoring, a preset charger time-out, and an 8mA precharge current mode to charge near-dead cells.Automatic detection of input power removal shuts down the device, minimizing current drain from the battery. An overall system accuracy of 0.75% ensures that the cell capacity is fully utilized without cycle life degradation. The MAX1879 is offered in a space-saving 8-pin µMAX package. An evaluation kit (MAX1879EVKIT) is available to help reduce design time.ApplicationsSingle-Cell Li+ Powered Portables Self-Charging Battery Packs PDAs Cell Phones Cradle ChargersFeatureso Simple Design Minimizes Heat o Low Component Count, No Inductor o Battery-Full Indicatoro 0.75% Accurate Battery Regulationo 1.5µA (max) Battery Current Drain with Wall Cube Removed o Restart Charging at 4.0Vo Continuous Overvoltage and Overtemperature Protection o Safely Precharges Near-Dead Cellso Automatic Power-Down when Power Source is Removed o Charges 1 Cell from as Low as 4.5V o Pin-Compatible Upgrade to MAX1679MAX1879Simple, Efficient, 1-Cell Li+ Pulse Charger________________________________________________________________Maxim Integrated Products 119-2061; Rev 0; 5/01Ordering InformationTypical Operating CircuitPin ConfigurationFor pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .IN, CHG , GATE to GND..........................................-0.3V to +26V BATT, TSEL, THERM, ADJ to GND...........................-0.3V to +6V GATE to IN................................................................-6V to +0.3V THERM, ADJ to BATT...............................................-6V to +0.3V GATE Continuous Current................................................-10mAContinuous Power Dissipation (T A = +70°C)8-Pin µMAX (derate 4.1mW/°C above +70°C)............330mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range............................-65°C to +150°C Lead Temperature (soldering, 10s)................................+300°CM A X 1879Simple, Efficient, 1-Cell Li+ Pulse ChargerABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V IN = V CHG = +10V, V BATT = +4.2V, TSEL = GND, GATE = unconnected, ADJ = unconnected, THERM = 10k Ωto GND, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.MAX1879Simple, Efficient, 1-Cell Li+ Pulse Charger_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)(V IN = V CHG = +10V, V BATT = +4.2V, TSEL = GND, GATE = unconnected, ADJ = unconnected, THERM = 10k Ωto GND, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)ELECTRICAL CHARACTERISTICSTM A X 1879Simple, Efficient, 1-Cell Li+ Pulse Charger 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS (continued)(V IN = V CHG = +10V, V BATT = +4.2V, TSEL = GND, GATE = unconnected, ADJ = unconnected, TH ERM = 10k Ωto GND,T A = -40°C to +85°C , unless otherwise noted.) (Note 5)voltage (the output voltage of the current-limited source) drops to very near the battery voltage. When the PFET is on, V IN may be as low as 2.5V.Note 2:Restart Threshold tracks battery regulation voltage adjustment.Note 3:Glitches less than 1ms do not cause a restart.Note 4:This current is less than 1.5µA, even if an external R ADJ resistor is connected from ADJ to GND.Note 5:Specifications to -40°C are guaranteed by design and not production tested.MAX1879Simple, Efficient, 1-Cell Li+ Pulse Charger_______________________________________________________________________________________50.9800.9850.9950.9901.0101.0151.0051.0001.020N O R M A L I Z E D T I M E R P E R I O D -40020-20406080TEMPERATURE (°C)NORMALIZED TIMER PERIOD vs. AMBIENT TEMPERATURE0.99700.99850.99800.99750.99950.99901.00151.00101.00051.00001.0020-40-20020406080TEMPERATURE (°C)N O R M A L I Z E D R E G U L A T I O N V O L T A G E NORMALIZED BATTERY REGULATIONVOLTAGE vs. TEMPERATURE7.07.67.47.27.88.08.28.48.68.89.0510152025V IN (V)P R E C H A R G E C U R R E N T (m A )PRECHARGE CURRENT vs. INPUT VOLTAGETypical Operating Characteristics(V IN = CHG = +10V, V BATT = +4.2V, THERM = 10k Ωto GND, T A = +25°C, unless otherwise noted.)6_______________________________________________________________________________________M A X 1879Simple, Efficient, 1-Cell Li+ Pulse ChargerFunctional DiagramMAX1879Simple, Efficient, 1-Cell Li+ Pulse Charger_______________________________________________________________________________________________________7Simplified State DiagramM A X 1879Simple, Efficient, 1-Cell Li+ Pulse Charger 8_______________________________________________________________________________________Detailed DescriptionInitiating a Charge CycleThe MAX1879 initiates fast-charge upon insertion of a battery or application of an external power source (cur-rent-limited AC wall adapter). After charge completion,charging restarts if the cell voltage falls below 4.0V or when TH ERM is pulled above 1.4V after the charge timer expires (approximately 6.25hr).Before a charge cycle can begin, cell conditions are verified to be within safe limits. The cell voltage must be greater than 2.5V but less than the regulation voltage (default value 4.2V). In addition, the thermistor must indicate an acceptable cell temperature (default range +2.5°C to +47.5°C). See the Applications Information section.Li+ cells can be damaged when fast-charged from a completely dead state. Moreover, a fully discharged cell may indicate a dangerous abnormal cell condition.As a built-in safety feature, the MAX1879 precharges the Li+ cell with 8mA at the start of a charge cycle if the cell voltage is below 2.5V. As soon as the cell reaches 2.5V and the safety conditions are met (see the Fast-Charge section), fast-charging begins.If the temperature moves outside the programmed range, the charger pauses. When the temperature returns to the safe charging range, the charging cycle continues, and the charge timer resumes counting from the point at which the temperature fault occurred. The timer is not reset. The MAX1879 monitors these condi-tions throughout the charging cycle.Fast-ChargeOnce cell conditions are determined to be satisfactory,the MAX1879 fast-charges the Li+ cell by pulling GATE low, turning on the external PMOS FET. Cell charging current is set by the current limit of the external power supply; it is not regulated by the MAX1879. The PMOS FET operates only as a switch, not as a linear regulator.Therefore, power dissipation is minimized, permitting rapid charge cycles with minimal heat generation. The external power supply must have a specified current limit that matches the desired fast-charge current for the Li+ cell.The MAX1879 uses a hysteretic algorithm with mini-mum on-times and minimum off-times to top-off the cell.The cell voltage is sampled every 2ms. If V BATT is less than the battery regulation voltage, the external PMOS FET turns on or remains on. If the cell voltage is greater than or equal to the battery regulation voltage, the FET turns off and remains off for the minimum off-time. By measuring the cell voltage when the PMOS FET is off as well as when it is on, the MAX1879 eliminates bat-tery-voltage sensing errors due to charging current flowing through the series resistance of cell protection switches or fuse links in the charging path. Fast-charge continues until the on/off duty cycle falls to 1/8, then the CHG LED turns off, indicating that the battery is charged to approximately 95% of full capacity.Pulsed Top-Off ChargeAt the beginning of the Top-Off state, the current stays on for a 1/8 duty cycle. As the cell continues to charge,the percentage of time spent in the “current-on ” mode decreases. Towards the end of top-off, the current stays off for many cycles between single “on ” pulses.During these final pulses, the instantaneous cell voltage may exceed the battery regulation voltage, but the duration of these pulses is several orders of magnitude shorter than the intrinsic chemical time constant of the Li+ cell. This does not harm the cell. Cell top-off is com-pleted when the charging timer expires (approximately 6.25hr).Charge Status with CHGCHG indicates the cell ’s charging status. An LED can be connected directly from IN to CHG for a visible indi-cator. Alternatively, a pullup resistor (100k Ω) from a logic supply to CHG provides a logic-level output.Table 1relates the LED status to the charger condition.Applications InformationThe MAX1879 was designed to offer the maximum inte-gration and functionality in the smallest, most basic application circuit possible. The only necessary exter-nal components are a current-limited wall cube, a PMOS FET, two small capacitors, and a 10k Ωthermis-tor/resistor. This simple application circuit appears in Figure 1. Optionally (as shown in Figure 2), an LED can be added as a charge-state indicator, a resistor (R ADJ )can be used to trim down the maximum charge voltagefrom 4.2V, and/or a reverse-current-protection diode can be added in line at the source.If the input is shorted, the MAX1879 will not allow current to flow from BATT back through IN to the source.However, the body diode inherent in the enhancement-mode FET would still allow the cell to discharge rapidly.To prevent this, add a power Schottky diode between the source and IN as in Figure 4.Adjusting the Battery Regulation VoltageA typical Li+ cell should be charged at a constant cur-rent until it reaches a voltage of about 4.2V, then charged at this voltage until the current decays below a predetermined level. The MAX1879 provides a simple way to reduce this maximum target voltage with a sin-gle resistor between ADJ and GND. Internally, ADJ connects to a precision 1.4V reference through a 10k Ωresistor. Leave ADJ open for a battery regulation volt-age (V BR ) of 4.2V; connect a 1% resistor from ADJ to GND to form a voltage-divider for lower battery regula-tion voltage (V)Select the external value using:A 1% tolerance resistor at ADJ degrades system accu-racy by only a fraction of a percent. For example, an R ADJ of 410k Ω±1% reduces the battery regulation volt-age by 2.4% (V BR ′= 4.1V from equation above, and (V BR ′- V BR ) / V BR = (4.1 - 4.2) / 4.2 = -2.4%).Therefore, the additional system error is simply the R ADJ tolerance multiplied by the percent change in the bat-tery regulation voltage, or (1%)(2.4%) = 0.024%.Selecting Minimum On-TimeThe minimum pulse on-times can be selected by con-necting TSEL as indicated in Table 2. A short pulse time may be preferred to minimize voltage overshoot at the battery and prevent pack overvoltage protection circuitry from prematurely activating. A long minimum on-time may be needed when using AC adapters with high turn-on overshoot to allow charging current to set-tle before the end of the pulse.Selecting External ComponentsPower SupplyOne reason the MAX1879 Li+ cell-charging solution is so compact and simple is that the charging current is set by the external power source, not by the MAX1879charging circuit. The PMOS FET in this application cir-cuit is either on or off, allowing the source to be directly connected to the cell or completely disconnected.Therefore, it is very important to choose a power supplyMAX1879Simple, Efficient, 1-Cell Li+ Pulse Charger_______________________________________________________________________________________9Figure 1. Simple Application Circuit Figure 2. Application Circuit Including LED and ThermistorM A X 1879with current limiting. In most applications, this will be a small “wall cube ” switching converter with an output voltage limit of about 5V or 6V, which is specified as “current-limited ” or “constant current.”PMOS SwitchThe PMOS FET switches the current-limited source on and off. Because of the intentionally slow switching times and limited slew rate, the MAX1879 is not particu-lar about the power FET it drives. Specifications to con-sider when choosing an appropriate FET are the minimum drain-source breakdown voltage,the minimum turn-on threshold voltage (V GS ), and current-handling and power-dissipation qualities. The minimum break-down voltage (BV DS ) must exceed the open-circuit volt-age of the wall cube by at least 25%. Note that this open-circuit voltage may be twice as high as the specified output voltage, depending on the AC adapter type.ThermistorThe intent of TH ERM is to inhibit fast-charging the cell when it is too cold or too hot (+2.5°C ≤T OK ≤47.5°C),using an external thermistor. TH ERM time multiplexes two sense currents to test for both hot and cold qualifi-cation. The thermistor should be 10k Ωat +25°C and have a negative temperature coefficient (NTC); the TH ERM pin expects 3.97k Ωat +47.5°C and 28.7k Ωat +2.5°C. Connect the thermistor between TH ERM and GND. If no temperature qualification is desired, replace the thermistor with a 10k Ωresistor. Thermistors by Philips (22322-640-63103), Cornerstone Sensors (T101D103-CA), and Fenwal Electronics (140-103LAG-RB1) work well.Bypass CapacitorsBypass the ADJ pin with a 2000pF ceramic capacitor.Bypass BATT with a capacitor with a value of at least 1.5µF per amp of charge current. The MAX1879 has a built-in protection feature that prevents BATT from rising above 5.5V. The device recognizes a rapid rise at BATT,indicating that the cell is being removed with the FET on.A capacitor from BATT to GND that ’s too small does not give the MAX1879 adequate time to shut off the FET.BATT may then rise above 6V (towards the open-circuit source voltage), violating the absolute maximum rating and damaging the device.In applications where the cell is removable, very large capacitance values make it increasingly difficult to iden-tify momentary cell removal events and may increase transient currents when the cell is replaced. Therefore,values in excess of 100µF should be avoided in those cases. For best system performance, at least 0.47µF of the total capacitance should be low-ESR ceramic.Layout GuidelinesThe MAX1879 controls the GATE slew rate. The layout is not as sensitive to noise as a high-frequency switching regulator. In addition, since the cell voltage is sensed both during and between high-current pulses, the sys-tem is insensitive to ground drops. However, Maxim rec-ommends establishing good grounding areas and large traces for high-current paths.Chip InformationTRANSISTOR COUNT: 4692SUBSTRATE CONNECTED TO GNDSimple, Efficient, 1-Cell Li+ Pulse Charger 10______________________________________________________________________________________MAX1879 Simple, Efficient, 1-Cell Li+ Pulse ChargerMaxim cannot assume re sponsibility for use of any circuitry othe r than circuitry e ntire ly e mbodie d in a Maxim product. No circuit pate nt lice nse s are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________11©2001 Maxim Integrated Products Printed USAis a registered trademark of Maxim Integrated Products.Package Information。

法国数学家拉格朗日著作《解析函数论》英文名

法国数学家拉格朗日著作《解析函数论》英文名全文共3篇示例，供读者参考篇1Title: French Mathematician Lagrange's Work "Analytical Function Theory"Introduction:Lagrange's "Analytical Function Theory" is a seminal work by the French mathematician Joseph-Louis Lagrange, also known as the Lagrange interpolation or Lagrange polynomial. In this work, Lagrange presents a detailed analysis of functions and their properties, laying the foundation for modern function theory. The book delves into topics such as series, limits, derivatives, and integrals of functions, providing a comprehensive study of mathematical functions.Chapter 1: Historical BackgroundJoseph-Louis Lagrange was born in Turin, Italy, in 1736 and later moved to Paris, where he made significant contributions to mathematics, mechanics, and astronomy. Lagrange's work in function theory was influenced by earlier mathematicians such as Euler, d'Alembert, and Legendre. His innovative approach toanalyzing functions set him apart as a pioneering figure in the field of mathematics.Chapter 2: Analytical Function TheoryIn "Analytical Function Theory," Lagrange explores the properties of functions through the use of calculus and algebraic techniques. He introduces the concept of series as a way to represent functions as infinite sums of terms, allowing for a more precise analysis of their behavior. Lagrange also discusses the importance of limits in determining the behavior of functions at particular points, laying the groundwork for modern calculus.Chapter 3: Applications and ImpactLagrange's work on function theory has had a lasting impact on mathematics, with his ideas forming the basis for modern theories in analysis and calculus. The concept of the Lagrange interpolation polynomial, named in his honor, is still widely used in numerical analysis and approximation techniques. His work has inspired generations of mathematicians to further explore the depths of function theory and its applications in various fields.Conclusion:In conclusion, Joseph-Louis Lagrange's work "Analytical Function Theory" stands as a testament to his brilliance and innovative contributions to the field of mathematics. Through his meticulous analysis of functions and their properties, Lagrange paved the way for future developments in function theory and calculus. His work remains a cornerstone of modern mathematics, continuing to inspire mathematicians worldwide to push the boundaries of knowledge in this dynamic field.篇2Title: French Mathematician Lagrange's Work "Analytic Functions Theory"IntroductionLagrange's work on Analytic Functions Theory is a significant contribution to the field of mathematics. This book, also known as "Théorie des Fonctions Analytiques" in French, was published in the year 1797 by the renowned French mathematician Joseph Louis Lagrange. In this seminal work, Lagrange established the foundation for the study of analytic functions and laid the groundwork for the development of complex analysis.Background of LagrangeJoseph Louis Lagrange, born in Turin, Italy in 1736, was a prominent mathematician who made groundbreaking contributions to various fields of mathematics, such as number theory, calculus, and celestial mechanics. He is widely regarded as one of the greatest mathematicians of all time and his work continues to influence modern mathematics.Content of the BookIn "Analytic Functions Theory", Lagrange delves into the study of functions that can be represented by a power series expansion. He introduces key concepts and theorems related to complex analysis, such as Cauchy's integral theorem, the residue theorem, and the fundamental theorem of algebra. Lagrange's work on the properties and behavior of analytic functions revolutionized the field of mathematics and paved the way for further developments in the study of complex numbers.Significance of the WorkLagrange's book is considered a seminal work in the field of mathematics and remains a cornerstone of complex analysis. His contributions to analytic functions theory have had a lasting impact on the field of mathematics and continue to influence contemporary research in areas such as number theory, physics,and engineering. The book has been widely studied and referenced by mathematicians and scientists around the world.ConclusionIn conclusion, Lagrange's work on Analytic Functions Theory stands as a testament to his brilliance and innovation in the field of mathematics. His insights and discoveries continue to shape our understanding of complex analysis and pave the way for new advancements in the field. The book remains a timeless classic in the realm of mathematics and serves as a source of inspiration for generations of mathematicians to come.篇3Title: The Analytic Function Theory by French Mathematician LagrangeIntroduction:Joseph-Louis Lagrange, a renowned mathematician from France, made significant contributions to the field of mathematics during the 18th century. One of his most influential works is the book "Analytic Function Theory," where he laid down the foundations for the study of complex functions. In this article, we will delve into the contents of this seminal work and discuss its impact on the development of mathematics.Overview of the Book:Lagrange's "Analytic Function Theory" is a comprehensive treatise on the analysis of complex functions, which play a crucial role in a variety of mathematical disciplines including calculus, differential equations, and number theory. The book is divided into several sections, each covering different aspects of the theory of analytic functions. Lagrange begins by introducing the basic concepts of complex numbers and functions, before delving into more advanced topics such as power series, contour integration, and the Cauchy-Riemann equations.Key Concepts and Theorems:One of the key contributions of Lagrange in this work is the development of the Cauchy Integral Formula, which provides a powerful method for calculating complex integrals over closed curves. This formula has important applications in the study of harmonic functions and the theory of residues. Lagrange also proved several important theorems in the book, including the Maximum Modulus Principle and the Riemann Mapping Theorem, which have been instrumental in the development of complex analysis.Impact on Mathematics:Lagrange's "Analytic Function Theory" is considered a seminal work in the field of complex analysis and has had a lasting impact on the development of mathematics. The insights and techniques introduced by Lagrange in this book have been instrumental in solving many mathematical problems in diverse areas such as physics, engineering, and computer science. The book continues to be studied and referenced by mathematicians and researchers around the world, highlighting the enduring legacy of Lagrange's contributions to the field.Conclusion:In conclusion, Joseph-Louis Lagrange's "Analytic Function Theory" stands as a cornerstone in the field of complex analysis, providing a solid foundation for the study of analytic functions and their applications. The insights and theorems introduced by Lagrange in this book have had a profound impact on the development of mathematics, shaping the way we understand and solve complex mathematical problems. As we continue to push the boundaries of mathematical research, Lagrange's work remains as relevant and influential as ever.。

SI2307BDS PDF规格书

VGS=-10V, VDS ≤ -10V
-6
VDS=-10V, ID=-3.2A
VGS=0V, VDS=-15V, f=1MHz
f=1MHz
VGS=-10V, VDS=-15V, ID=-1.7A
VGS=-4.5V, VDS=-15V, RL=15Ω,RGEN=6Ω
ID=1.0A
5 sec Steady State IS=-0.75A,VGS=0V
3. TJM - TA = P DM Z thJA(t)
4. Surface Mounted
10 -3
10 -2
10 -1
1
10
Square Wave Pulse Duration (s) Normalized Thermal Transient Impedance, Junction-to-Ambient
Typ Max Unit
V
-1 μA
-10
±100 nA
-3.0 V
63 78 mΩ
105 130
A
5.0
S
380
100
pF
75
8.0
Ω
9.0 15
1.4
nC
2.4
9 20
12 20 ns
25 40
14 21
-1.25 A
-0.75
-0.85 -1.2 V
*1Pulse test: pulse width ≤ 300 μs, duty cycle ≤ 2 %. *2 For DESIGN AID ONLY, not subject to production testing. *3 Switching time is essentially independent of operating temperature.

ASCO ATS中文样本

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右图为ASCO 全球总部及主要生产工厂，位于美国新泽西州Florham Park,拥有超过1300名员工，此工厂每年制造及运送数以万计的ATS 至全球各地。

全球总部-Florham Park, 美国新泽西州当您了解越多，您会更加坚定选择ASCO 提供多元化产品及解决方案以符合各种对紧急电源转换应用的要求：◆一般开路转换开关ATS◆不停电转换闭路转换开关CTTS◆延迟转换开关DTTS◆维修时仍可继续供应电力的旁路隔离抽出型转换开关ATB ，ACTB◆固态电子式快速转换开关STS◆闭路式线性加卸载转换开关SLTS◆中压转换开关MV ATS ，MVCTTS◆多电源转换系统◆发电机并联系统 ◆紧急电力管理系统 2000A 含维护旁路自动转换开关 ◆照明控制接触器◆瞬时浪涌电压突波抑制器全球销售与服务网络ASCO 产品销售及服务网遍布全球，ASCO 自动转换开关为强制认证(CCC)合格产品、UL1008认证合格产品,是全球第一家取得CE,IEC60947-6-1及KemaKeur 认证合格的自动转换开关,符合NFPA 20,70，99,110,IEEE 241,446及NEMA ICS10-1993(ICS2-447)法规标准。

自动转换开关提供最佳可靠度◆真正PC级自动转换开关，GB/T 14048.11-2002、UL1008及IEC60947-6-1认证的合格产品◆适用于各类型负载，可使用于最复杂负载类型AC-33A ◆带载转换及耐受故障电流能力高，方便保护协调设计及设定◆线圈激磁型双投式转换开关，转换速度快且稳定◆电气操作，机械保持触头闭合◆电气及机械互锁，无中间暂停位置，保证只接触一路电源供电，避免双边电源不供电或双路电源短路◆具灭弧触头及灭弧室，保护主触头，有足够灭弧距离，保证明显断开点◆大电流ATS静主触头为分片式设计，保证最佳接触面积避免过热，并具有自我清洁功能◆百分之百电流额定◆不需外接触独立控制电源，降低故障率◆可由正面检视维修◆转换速度快，3000A以下机械动作时间低于50ms,4000A 低于60ms◆微处理机控制器，控制精密度高◆可搭配同相位侦测器进行同相位转换◆可搭配重叠转换第四极（中性级），避免转换过程产生瞬间异常电压◆可搭配通讯模块，远程监控ATS状态重要负载供电需要ATS 医院、电子半导体业、商业大楼及工业厂房计算机数据处理中心，电信通讯机房石化工业及制造业300系列开路转换自动转换开关ATS◆适用于商业、工业及紧急重要的供电场所◆GB/T 14048.11-2002、UL1008及IEC60947-6-1认证合格产品◆2、3、4极，适用于120V-600V，单相及三相系统，30A-3000A，50/60HZ◆PC级ATS适用于各类负载及AC-33A◆真正双投式自动转换开关，采用先离后接转换模式，转换过程负载短瞬间停电，有明显断开点◆转换机构电力来自于即将投入端电源，不需额外控制电源，减少故障率◆简单明了的盘面控制及显示面板，LED灯号显示开关位置及电源状态，并含测试及延时取消开关◆附发电机每周定时启动测试定时器，可设定有载或无载测试，若有必要也可取消此设定◆有时正常及紧急电于瞬间压降或瞬间停电后马上复电,一般ATS在此状况下会做不必要的频繁转换;ASCO300系列ATS可以延时设定忽略此种电力问题，使ATS不作无谓转换200A ATS，屋外型外箱UL1008耐受短时电流及带载转换闭合额定能力对称电流值(A/RMS)ATS电流(A) 以熔丝保护时可达(A)值以断路器保护时可达(A)值30 100,00010,000 70-200 200,000 22,000 230 100,00022,000 260,400 200,000 42,000600 200,00050,000 800,1000,1200 200,000 65,0001600,2000 200,000 85,000 2600,3000 200,000 100,000300系列微处理机控制器电压与频率侦测◆三相侦测◆电压复归值可设定为90%或95% ◆电压跳脱值可设定为70%至90% ◆频率复归值设定为95% ◆频率跳脱值设定为85%延时设定 ◆发电机延时启动1或3秒可调 ◆转换至紧急侧延时0至5分钟可调 ◆转回市电侧延时1秒至30分钟可调 ◆4秒延时转回市电侧以防止因发电机短时间低电压而造成开关不必要的转换 ◆发电机冷却运转延时5分钟标准功能◆附同相位转换侦测器(In-Phasc Monitor),避免因不同步转换造成上游断路器无故跳脱,严重时损坏设备 ◆可选用重叠转换式中性极(第四极Overlapping Neutral),采用先后离的操作程序,避免转换过程中产生瞬间异常电压 ◆附转换前及转换后负载隔离信号接点,于转换前或转换后提供信号给电动机启动器，电梯控制器，变频器或其它可供选择控制的负载进行特别控制；例如电梯可于转换前接受信号，通知先行暂停于某一楼层，待转换后信号解除再正常运行,以避免危险 ◆附发电机每周定时启动测试定时器，可设定有载或无载测试，若有必要也可取消此功能遥控功能 ◆透过干接点与监控中心联机进行遥控测试,禁止转换至紧急电源，延时取消等控制功能◆可选购通讯模块72A,连接(Ethernet TCP/IP)利用计算机Windows 浏览器即可监视ATS 状态300系列盘面控制及显示面板300系列微处理机控制器符合GB ，UL ，IEC ，EMC 检测标准300系列ATS箱体定制1、开门方向标准的ASCO ATS外箱均为右开门（如上图所示），若须左开门请于订购时选购原厂加长型控制线。

外贸单证练习[世格]

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5804中文资料

5804中⽂资料Combining low-power CMOS logic with high-current and high-voltage bipolar outputs, the UCN5804B and UCN5804LB BiMOS II translator/drivers provide complete control and drive for a four-phase unipolar stepper-motor with continuous output current ratings to 1.25 A per phase (1.5 A startup) and 35 V.The CMOS logic section provides the sequencing logic, DIRECTION and OUTPUT ENABLE control, and a power-on reset function. Three stepper-motor drive formats, wave-drive (one-phase), two-phase, and half-step are externally selectable. The inputs are compatible with standard CMOS, PMOS, and NMOS circuits. TTL or LSTTL may require the use of appropriate pull-up resistors to ensure a proper input-logic high.The wave-drive format consists of energizing one motor phase at a time in an A-B-C-D (or D-C-B-A) sequence. This excitation mode consumes the least power and assures positional accuracy regardless of any winding inbalance in the motor. Two-phase drive energizes two adjacent phases in each detent position (AB-BC-CD-DA). This sequence mode offers animproved torque-speed product, greater detent torque, and is less susceptible to motor resonance. Half-step excitation alternates between the one-phase and two-phase modes (A-AB-B-BC-C-CD-D-DA), providing an eight-step sequence.The bipolar outputs are capable of sinking up to 1.5 A and withstanding 50 V in the off state (sustaining voltages up to 35 V). Ground-clamp and flyback diodes provide protection against inductive transients. Thermal protection circuitry disables the outputs when the chip temperature is exces-sive.Both devices are rated for operation over the temperature range of -20°C to +85°C. The UCN5804B is supplied in a 16-pin dual in-line plastic batwing package with a copper lead frame and heat-sinkable tabs for improved power dissipation capabilities; the UCN5804LB is supplied in a 16-lead plastic SOIC batwing package with a copper lead frame and heat-sinkable tabs.FEATURESI 1.5 A Maximum Output Current I 35 V Output Sustaining VoltageI Wave-Drive, Two-Phase, and Half-Step Drive Formats I Internal Clamp DiodesI Output Enable and Direction Control I Power-On ResetI Internal Thermal Shutdown CircuitryBiMOS II UNIPOLARSTEPPER-MOTOR TRANSLATOR/DRIVERAlways order by complete part number, e.g., UCN5804B .Data Sheet 26184.12C*5804115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-********BiMOS II UNIPOLAR STEPPER-MOTORTRANSLATOR/DRIVERTRUTH TABLEDrive Format Pin 9Pin 10Two-Phase L L One-Phase H L Half-Step L H Step-InhibitHHTYPICAL INPUT CIRCUITDwg. EP-021-4TYPICAL OUTPUT DRIVERDwg. EP-010-5INCopyright ? 1987, 2000 Allegro MicroSystems, Inc.5075100125150510A L L O W A B L E P A C K A G E P O W E R D I S S I P A T I O N I N W A T T STEMPERATURE IN °C43225Dwg. GP-049-2A5804BiMOS II UNIPOLAR STEPPER-MOTOR TRANSLATOR/DRIVER/doc/a3712eddb9f3f90f76c61b7c.htmlELECTRICAL CHARACTERISTICS at T A = 25°C, T J ≤ 150°C, V DD = 4.5 V to 5.5 V (unless otherwise noted). Limits CharacteristicSymbol Test Conditions Min.Typ.Max.Units Output Leakage Current I CEX V OUT = 50 V—1050µA Output Sustaining Voltage V CE(sus)I OUT = 1.25 A, L = 3 mH 35——V Output Saturation VoltageV CE(SAT)I OUT = 700 mA — 1.0 1.2V I OUT = 1 A — 1.1 1.4V I OUT= 1.25 A— 1.2 1.5V Clamp Diode Leakage Current I R V R = 50 V —1050µA Clamp Diode Forward Voltage V F I F = 1.25 A — 1.53.0V Input CurrentI IN(1)V IN = V DD —0.5 5.0µA I IN(0)V IN = 0.8 V —-0.5-5.0µA Input VoltageV IN(1)V DD = 5 V3.5— 5.3V V IN(0)-0.3—0.8V Supply Current I DD 2 Outputs ON—2030mA Turn-Off Delay t ON 50% Step Inputs to 50% Output ——10µs Turn-On Delayt OFF 50% Step Inputs to 50% Output ——10µs Thermal Shutdown TemperatureT J—165—°CTIMING CONDITIONSA. Minimum Data Set Up Time . . . . . . . . . . . . . . . . . . . . . . . . 100 nsB. Minimum Data Hold Time . . . . . . . . . . . . . . . . . . . . . . . . . . 100 nsC. Minimum Step Input Pulse Width . . . . . . . . . . . . . . . . . . . . . 3.0 µsDwg. W-110AONE PHASE HALF STEPOOUTPUT ENABLEOUTPUT C OUTPUT DCLOCK115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-50005804BiMOS II UNIPOLAR STEPPER-MOTORTRANSLATOR/DRIVERWAVE-DRIVE SEQUENCEHalf Step = L, One Phase = H Step A B C D POR ON OFF OFF OFF 1ON OFF OFF OFF 2OFF ON OFF OFF 3OFF OFF ON OFF 4OFFOFFOFFONTWO-PHASE DRIVE SEQUENCEHalf Step = L, One Phase = LStep A B C D POR ON OFF OFF ON 1ON OFF OFF ON 2ON ON OFF OFF 3OFF ON ON OFF 4OFFOFFONONHALF-STEP DRIVE SEQUENCEHalf Step = H, One Phase = LStep A B C D POR ON OFF OFF OFF 1ON OFF OFF OFF 2ON ON OFF OFF 3OFF ON OFF OFF 4OFF ON ON OFF 5OFF OFF ON OFF 6OFF OFF ON ON 7OFF OFF OFF ON 8ONOFFOFFONAPPLICATIONS INFORMATIONInternal power-on reset (POR) circuitry resets OUTPUT A (and OUTPUT D in the two-phase drive format) to the on state with initial applica-tion of the logic supply voltage. After reset, the circuit then steps according to the tables.The outputs will advance one sequenceposition on the high-to-low transition of the STEP INPUT pulse. Logic levels on the HALF-STEP and ONE-PHASE inputs will determine the drive format (one-phase, two-phase, or half-step). The DIRECTION pin determines the rotation se-quence of the outputs. Note that the STEP INPUT must be in the low state when changing the state of ONE-PHASE, HALF-STEP, or DIRECTION to prevent erroneous stepping.All outputs are disabled (off) when OUTPUT ENABLE is at a logic high. If the function is not required, OUTPUT ENABLE should be tied low.In that condition, all outputs depend only on the state of the step logic.During normal commutation of a unipolar stepper motor, mutual coupling between the motor windings can force the outputs of the UCN5804B below ground. This condition will cause forward biasing of the collector-to-substrate junction and source current from the output. For many L/R applications, this substrate current is high enough to adversely affect the logic circuitry and cause misstepping. External series diodes (Schottky are recommended for increasedefficiency at low-voltage operation) will prevent substrate current from being sourced through the outputs. Alternatively, external ground clamp diodes will provide a preferred current path from ground when the outputs are pulled below ground.Internal thermal protection circuitry disables all outputs when the junction temperature reaches approximately 165°C. The outputs are enabled again when the junction cools down to approxi-mately 145°C.5804BiMOS II UNIPOLAR STEPPER-MOTOR TRANSLATOR/DRIVER/doc/a3712eddb9f3f90f76c61b7c.htmlTYPICAL APPLICATION L/R Stepper-Motor DriveThe products described here are manufactured under one or more U.S. patents or U.S. patents pending.Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may berequired to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current.Allegro products are not authorized for use as critical components in life-support devices or systems without express written approval.The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsi-bility for its use; nor for any infringement of patents or other rights of third parties which may result from its use.115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-50005804BiMOS II UNIPOLAR STEPPER-MOTORTRANSLATOR/DRIVERUCN5804BDimensions in Inches (controlling dimensions)Dimensions in Millimeters(for reference only)NOTES:1.Exact body and lead configuration at vendor’s option within limits shown.2.Lead spacing tolerance is non-cumulative.3.Lead thickness is measured at seating plane or below.4.Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece.5.Supplied in standard sticks/tubes of 25 devices.Dwg. MA-001-17A in18Dwg. MA-001-17A mm185804 BiMOS II UNIPOLAR STEPPER-MOTOR TRANSLATOR/DRIVER/doc/a3712eddb9f3f90f76c61b7c.htmlUCN5804LB(add “TR” to part number for tape and reel) Dimensions in Inches(for reference only)Dimensions in Millimeters(controlling dimensions)NOTES:1.Exact body and lead configuration at vendor’s option within limits shown.2.Lead spacing tolerance is non-cumulative.3.Lead thickness is measured at seating plane or below.4.Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece.5.Supplied in standard sticks/tubes of 47 devices or add “TR” to part number for tape and reel.115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-50005804BiMOS II UNIPOLAR STEPPER-MOTORTRANSLATOR/DRIVERMOTOR DRIVERSFunctionOutput Ratings*Part Number ?INTEGRATED CIRCUITS FOR BRUSHLESS DC MOTORS3-Phase Power MOSFET Controller —28 V 39333-Phase Power MOSFET Controller —50 V 39323-Phase Power MOSFET Controller —50 V 76002-Phase Hall-Effect Sensor/Driver 400 mA 26 V 3626Bidirectional 3-Phase Back-EMFController/Driver ±600 mA 14 V 89062-Phase Hall-Effect Sensor/Driver 900 mA 14 V 36253-Phase Back-EMFController/Driver ±900 mA 14 V 8902–A 3-Phase Controller/Drivers ±2.0 A 45 V 2936 & 2936-120INTEGRATED BRIDGE DRIVERS FOR DC AND BIPOLAR STEPPER MOTORSDual Full Bridge with Protection & Diagnostics ±500 mA 30 V 3976PWM Current-Controlled Dual Full Bridge ±650 mA 30 V 3966PWM Current-Controlled Dual Full Bridge ±650 mA 30 V 3968PWM Current-Controlled Dual Full Bridge ±750 mA 45 V 2916PWM Current-Controlled Dual Full Bridge ±750 mA 45 V 2919PWM Current-Controlled Dual Full Bridge ±750 mA 45 V 6219PWM Current-Controlled Dual Full Bridge ±800 mA 33 V 3964PWM Current-Controlled Full Bridge ±1.3 A 50 V3953PWM Current-Controlled Dual Full Bridge ±1.5 A 45 V 2917PWM Current-Controlled Microstepping Full Bridge ±1.5 A 50 V 3955PWM Current-Controlled Microstepping Full Bridge ±1.5 A 50 V 3957PWM Current-Controlled Dual DMOS Full Bridge ±1.5 A 50 V 3972Dual Full-Bridge Driver ±2.0 A 50 V 2998PWM Current-Controlled Full Bridge ±2.0 A 50 V3952DMOS Full Bridge PWM Driver ±2.0 A 50 V 3958Dual DMOS Full Bridge ±2.5 A 50 V 3971UNIPOLAR STEPPER MOTOR & OTHER DRIVERSVoice-Coil Motor Driver ±500 mA 6 V 8932–A Voice-Coil Motor Driver ±800 mA 16 V 8958Unipolar Stepper-Motor Quad Drivers 1 A 46 V 7024 & 7029Unipolar Microstepper-Motor Quad Driver 1.2 A 46 V 7042Unipolar Stepper-Motor Translator/Driver 1.25 A 50 V 5804Unipolar Stepper-Motor Quad Driver 1.8 A 50 V 2540Unipolar Stepper-Motor Quad Driver 1.8 A 50 V 2544Unipolar Stepper-Motor Quad Driver 3 A 46 V 7026Unipolar Microstepper-Motor Quad Driver 3 A 46 V 7044*Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits or over-current protection voltage limits. Negative current is defined as coming out of (sourcing) the output.?Complete part number includes additional characters to indicate operating temperature range and package style.Also, see 3175, 3177, 3235, and 3275 Hall-effect sensors for use with brushless dc motors.。

化学信息学作业封锋051130023.

化学信息学作业封锋 051130023（南京大学化学化工学院南京 210093）1.苏丹红简介【中文名称】油溶黄；1-苯基偶氮-2-萘酚；苏丹黄；C.I.溶剂黄14；C.I.12055；苏丹I；一号苏丹红【英文名称】oil-soluble yellow;sudan i;l-phenylazo-2-naphthol;sudan yellow;oil orange“苏丹红”并非食品添加剂，而是一种化学染色剂。

它的化学成份中含有一种叫萘的化合物，该物质具有偶氮结构，由于这种化学结构的性质决定了它具有致癌性，对人体的肝肾器官具有明显的毒性作用。

苏丹红属于化工染色剂，主要是用于石油、机油和其他的一些工业溶剂中，目的是使其增色，也用于鞋、地板等的增光。

又名“苏丹”。

苏丹红的性质【结构式和化学式】化学式：苏丹红1号：1-苯基偶氮-2-萘酚：C16H12N2O苏丹红2号：1-[(2,4-二甲基苯)偶氮]-2-萘酚苏丹红3号：1-[4-(苯基偶氮)苯基]偶氮-2-萘酚苏丹红4号：1-2-甲基-4-[(2-甲基苯)偶氮]苯基偶氮-2-萘酚【相对分子质量或相对原子质量】248.29 【熔点】134℃ 【性状】黄色粉末。

【溶解情况】不溶于水，微溶于乙醇，易溶于油脂、矿物油、丙酮和苯。

乙醇溶液呈紫红色，在浓硫酸中呈品红色，稀释后成橙色沉淀。

苏丹红有Ⅰ、Ⅱ、Ⅲ、Ⅳ号四种，经毒理学研究表明，苏丹红具有致突变性和致癌性，苏丹红(一号)在人类肝细胞研究中显现可能致癌的特性，在我国禁止使用于食品中。

我国对于食品添加剂有着严格的审批制度，我国从未批准将“苏丹红”染剂用于食品生产，此次的“苏丹红”事件类似于“吊白块”、“瘦肉精”，都是食品生产企业违规在食品中加入非法添加物。

苏丹红与食用色素的区别“胭脂红”、“落日黄”等食品添加剂与“苏丹红”有何区别？一般市民虽然很难判定哪些食品含有苏丹红，但没有必要望“红”、“辣”生畏。

除苏丹红外，可以食用的红色着色剂有上千种，如胭脂红、新红、苋菜红等，这些着色剂是可以在食品中限量添加的。

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１．大孔吸附树脂型号的选择Ａ３
通过对不同型号大孔吸附树脂的静态吸附动Ｊ仪器有限公司Ｋ —ＯＢ、ＱＩ）色谱柱［ＤｙｅｉＣ８ＯＢＳＨｐｒｌ１ｓ（５ｘ．ｘ］紫外扫描仪（２０４６５）、日本岛津Ｕ２５）真空学曲线和静态解吸动力学曲线的测定．定用于纯化ｖ一５０、确发酵液中异黄酮甙元的大孔吸附树脂的捌号．
昊传茂．湖北工业大学工业微生物省衄重点实验宣教
授．３０８武汉。４０６，
１．洗脱条件的优化．４４
通过大孔吸附树脂吸附速率、洗脱剂浓度、洗脱
速率、脱终点等因旅的考察．定洗脱的最佳方案洗确ｌ４太孔Ｉ附树脂纯化发酵激ｕ人程异黄酮甙尤＿．５发『ｔ１
料的基础上．合自身的实际工作．究大孔吸附树脂烷．人超声波清洗器超声震荡３ｉ，Ｉ，去ｆ结研放０ｍｌ静｝倒ｌ：
Ｉ犬孔吸附树脂（．１购于天津南开大学化工厂）

一种催化氧化体系制备壬二酸的方法[发明专利]

专利名称：一种催化氧化体系制备壬二酸的方法
专利类型：发明专利
发明人：吾满江·艾力,高军军,张亚刚,孙自才,胡书明,樊莉,董昕
申请号：CN200510052293.9
申请日：20050203
公开号：CN1680253A
公开日：
20051012
专利内容由知识产权出版社提供
摘要：本发明涉及一种催化氧化体系制备壬二酸的方法，该方法将油酸，钨酸，溶剂搅拌混合均匀，升温，滴加过氧化氢溶液，升温，旋转蒸发回收溶剂，采用乙酸乙酯重结晶即可得到9，10－二羟基硬脂酸；在将9，10－二羟基硬脂酸的油相中加入催化氧化体系溶液，经萃取、过滤、烘干从反应液中提取得到产物壬二酸。

产品壬二酸的产率最高可达75％(以油酸计)；按9，10－二羟基硬脂酸计可达到95％。

本发明工艺清洁，环境友好，不污染环境，无需贵金属催化剂，不需要长时间通氧气，臭氧，反应中不需要高压，实施条件简单，便于进行规模化生产。

申请人：中国科学院新疆理化技术研究所
地址：830011 新疆维吾尔自治区乌鲁木齐市北京南路40号附1号
国籍：CN
代理机构：乌鲁木齐中科新兴专利事务所
代理人：张莉
更多信息请下载全文后查看。

SANS1431

ISBN 978-0-626-19850-3 SANS 1431:2007Edition 1.8 SOUTH AFRICAN NATIONAL STANDARD Weldable structural steelsPublished by Standards South Africa1 dr lategan road groenkloof private bag x191 pretoria 0001tel: 012 428 7911 fax: 012 344 1568 international code + 27 12www.stansa.co.za© Standards South AfricaSANS 1431:2005Edition 1.8Table of changesChange No.Date ScopeAmdt 1 1990 Amended to convert it from a standard specification to aspecification, to add three grades of steel to tables 1 and 4, tochange the requirements for certain grades of steel, to changeappendix B and to add a new appendix.Amdt 2 1994 Amended in respect of the minimum thickness specified for plate intable 5.Amdt 3 1995 Amended to change the requirements for the chemical compositionof grades 300WA and 300WC steels and to replace an existingSABS standard with its SABS ISO equivalent.Amdt 4 1997 Amended to change a description of a form of steel.Amdt 5 2003 Amended to modify the chemical composition of grade 300 WAsteel and 300 WC steel to table 1, to update normative referencesand to delete appendix F.Amdt 6 2003 Amended to modify 3.2.1(b), to correct a grade designation intable 1, to modify the requirements for Nb and V for grade 300 WAand grade 300 WC steel in table 2.Amdt 7 2005 Amended to delete reference to SANS 10057 and to change theheading in 6.5.4, to replace values for the chemical compositionsCu, Ni, Cr and Mo in tables 1 and 2 with a note, to allow theelectronic transfer of test certificates and to update referencedstandards.Amdt 8 2007 Amended to update a referenced standard and to correct values inthe chemical composition of plates.ForewordThis South African standard was approved by National Committee StanSA SC 5120.20E, Engineering materials – Ferrous metals, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement.This document was published in July 2007. This document supersedes SANS 1431:2005 (edition 1.7).A vertical line in the margin indicates where the text has been technically modified by amendment No. 8.SANS 1431:2007Edition 1.8 ContentsPage Foreword1 Scope (3)2 Definitions (3)3 Requirements (4)4 Marking (13)5 Test certificates (13)6 Inspection and methods of test (13)6.1 Inspection (13)6.2Test for chemical composition (14)6.3Tests for tensile properties (14)6.4Tests for impact resistance (15)6.5 Bend test (16)6.6 Retests (17)Appendix A Applicable standards (19)Appendix B Notes to purchasers (20)Appendix C Positions of test samples for tensile and bend tests (23)Appendix D Positions of test samples for impact tests (25)Appendix E Quality evaluation of weldable structural steels produced to therequirements laid down in the specification (27)1SANS 1431:2007Edition 1.8This page is intentionally left blank 2SANS 1431:2007Edition 1.8 Weldable structural steels1 Scope1.1 This specification covers requirements for 12 grades of structural steel available in the form of plates, sections and bars, and suitable for bolted, riveted or welded structures.NOTEa) The standards referred to in this specification are listed in appendix A.b) Requirements that must be specified by the purchaser and those that must or may be agreed upon between themanufacturer and the purchaser are listed in appendix B.c) The positions for taking test samples for tensile and bend tests are given in appendix C.d) The positions for taking test samples for impact resistance tests are given in appendix D.e) Guidance on the verification of the quality of weldable structural steels produced to this specification is given inappendix E.2 Definitions2.1 For the purposes of this specification the following definitions shall apply:acceptableacceptable to the authorities administering this standard, or to the parties concluding the purchase contract, as relevant Amdt 1; amdt 5 barsrounds, squares or flats produced in closed passes or by successive face and edging passescastthe product of a single furnace chargeplatea flat rolled product, from a single ingot, semi-finished product or slab, the edges of which are allowed to deform freely during rolling. Plates are supplied in flat form, generally square or rectangular. Plates may also be supplied in coil form. A plate may be cut from the parent rolled product obtained by rolling of the ingot, or semi-finished product, or slab. Edges along the sides parallel to rolling may be rolled, sheared, or machine flame cutsectionsrolled flanged sections and angles3SANS 1431:2007 Edition 1.84test piecethat portion of the test sample on which a test is to be carried outtest samplethat portion of the material submitted as representative of the material to be tested, and from which the test pieces are to be cut3 Requirements3.1 General3.1.1 ProcessThe steel shall be made by either of the following processes:a) electric arc furnace, orb) basic oxygen furnace with or without combination blowing.3.1.2 Copper additionsOnly when so required (see appendix B), shall copper additions be made to the melt during manu-facture.3.2 GradeNOTE All steels that comply with the requirements of this specification are of weldable quality.3.2.1 GradeThe steel shall be of one of 12 grade designations. The grade designation is given by combining the yield stress designation and the impact resistance designation.a) The yield stress designation can be determined from the following table:1 2 Minimum yieldDesignationMPa * 240 300 350 450 240-220 300-270 350-325 450-380* Depending on the product andthe section thicknessSANS 1431:2007Edition 1.85b) The impact resistance designation can be determined from the following table:1 2 DesignationMinimum Charpy V-notch impact resistanceWA Not specified WC At 0 °C : 27 J WDD At −30 °C : 27 JAmdt 6A steel designated as 350 WC will therefore have a minimum yield strength in the range 350-325 MPa (depending on the product and the section thickness) and a minimum Charpy V-notch impact resistance of 27 J at 0 °C.3.3 Form and dimensions3.3.1 FormThe steel shall be in the form of plates, sections or bars.3.3.2 DimensionsThe nominal dimensions of plates, sections or bars shall be as required (see appendix B). The actual measurements of plates, sections or bars shall, subject to the appropriate tolerances given in the relevant following specifications, conform to the nominal values required:1 2 Form of steelSpecificationTaper flange I-sections BS 4:1932I- and H-sections and channels (imperial units) }BS 4-1 Plates, bars EN 10029 IPE sectionsDIN 1025-5Taper flange channels and parallel flange channels (metric units)DIN 1026-1, EN 10279 Angles ISO 657-1Amdt 4; amdt 53.4 Supply condition and freedom from defects3.4.1 The standard supply condition of the material shall be as-rolled. Additional treatment such asnormalizing, controlled rolling or accelerated cooling may be applied, at the manufacturer's option, tomeet required mechanical properties.NOTE Details of any such additional treatment should be stated on the manufacturer's certificate.3.4.2 Subject to agreement between the manufacturer and the purchaser, material shall be supplied inthe normalized condition, when this is required by the purchaser.NOTE The properties given in tables 4, 5 and 6 refer to material in the standard supply condition. Purchasers who intend to reheat any such material are advised to discuss the application and proposed reheat treatment of the steel with the manufacturer, prior to placing the order.SANS 1431:2007Edition 1.83.4.3 Freedom from defectsThe material shall be sound and free from such segregation, cracks, laminations or surface flaws that might preclude its use for the purpose for which it is intended.3.4.4 Correction of minor surface defectsThe manufacturer may remove minor surface defects by grinding, provided that the thickness of the steel is not reduced locally by more than 4 % below the minimum thickness required in the relevant specification given in 3.3.2.3.4.5 Additional procedure for correction of minor surface defectsWhen so required and so agreed upon, the following additional procedure shall apply:a) When grinding would reduce the thickness locally by more than 4 % or 3 mm, surface defects maystill be removed by grinding, provided that the thickness is not reduced locally by more than 7 % below the minimum thickness required in the relevant specification given in 3.3.2.b) Except in the case of round and square bars, surface defects which cannot be corrected as statedin (a) above may be removed by grinding or chipping followed by welding, subject to the following conditions:1) after complete removal of the defect and before welding, the thickness shall not have beenreduced to less than 80 % of its nominal dimension;2) the welding shall be carried out in accordance with an approved welding procedure, and the weldshall be ground smooth and flush with the adjacent surface of the product.3.5 Chemical composition3.5.1 Ladle analysisThe chemical composition of the steel shall be determined by ladle analysis in accordance with 6.2. This chemical composition shall comply with the requirements of table 1 or table 2, as appropriate.3.5.2 Product analysisWhen so required by the purchaser and agreed to by the manufacturer, a product analysis shall be carried out in accordance with 6.2. The analysis shall be done on the test sample used for verification of the mechanical properties, or, at the option of the manufacturer, from material at positions as shown in appendix C.3.5.3 Purchaser's product analysisA product (check) analysis may be carried out by the purchaser.3.5.4 Acceptable product analysisThe composition of the steel shall be acceptable if the results of the product analysis carried out by either the manufacturer or the purchaser conform to the relevant values given in table 1 or table 2, subject to the appropriate permitted deviations given in table 3.6SANS 1431:2007Edition 1.873.5.5 Unacceptable product analysisIf, in a product analysis, the deviation(s) exceed the relevant value(s) given in table 3, the manufacturer shall be given the opportunity of confirming the purchaser's results. In the event of dispute, compliance with the standard shall be decided on the basis of an independent analysis, using the methods given in 6.2.3.5.6 Maximum carbon equivalent value for weldabilityIf agreed upon between the manufacturer and the purchaser, the grades listed in table 1 and table 2 shall be supplied with a carbon equivalent value (calculated on ladle analysis) not exceeding themaximum values given in column 11 of tables 1 and 2.Amdt 7The carbon equivalent value shall be calculated using the formula15Cu + Ni + 5 V + Mo + Cr + 6Mn + CTable 1 — Chemical composition (ladle analysis) for sections and bars1 2 3 4 5 6 7 8 9 10 11C Mn Si P S Nb VNb +V *Al +Maximum contentMaximum carbonequivalent #Grade%(m/m) %240WA 240WC 240WDD 0,22 0,22 0,22 1,60 1,60 1,60 0,50 0,50 0,50 0,040 0,040 0,040 0,050 0,050 0,040 0,01 0,01 0,10 0,03 0,03 0,10 0,04 0,04 0,10 0,10 0,10 0,10 0,38300WA 300WC 300WDD 0,22 0,22 0,22 1,60 1,60 1,60 0,50 0,50 0,50 0,050 0,050 0,040 0,050 0,050 0,050 0,03 0,03 0,10 0,10 0,10 0,10 0,05 0,05 0,10 0,10 0,10 0,10 0,43350WA 350WC 350WDD 0,22 0,22 0,22 1,60 1,60 1,60 0,50 0,50 0,50 0,050 0,050 0,040 0,050 0,050 0,040 0,10 0,10 0,10 0,10 0,10 0,10 0,10 0,10 0,10 0,10 0,10 0,10 0,45450WA 450WC 450WDD0,22 0,22 0,221,60 1,60 1,600,50 0,50 0,500,040 0,040 0,0400,040 0,040 0,0400,10 0,10 0,100,20 0,20 0,200,15 0,15 0,150,10 0,10 0,100,51NOTE The total combination of Cu, Ni, Cr and Mo should not exceed 0,5 % max.* It is permissible that the steels be supplied with no niobium or vanadium. If grain refining elements areused, their presence shall be reported by the manufacturer on test certificates. If Nb or V is used singly, the maximum percentages of either shall conform to the limits given in columns 7 and 8. If they are used in combination, the maximum percentage shall conform to the limits given in column 9.+Addition of these elements is optional, and their presence may be reported by agreement between the manufacturer and the purchaser (see appendix B.2.5).#The maximum carbon equivalent, as specified in column 11, may be specified by agreement between the manufacturer and the purchaser (see appendix B.2.4), and if the purchaser requires the addition of copper, the relevant maximum carbon equivalent given in column 11 shall be increased by 0,02 %.Amdt 1; amdt 3; amdt 5; amdt 6; amdt 7SANS 1431:2007 Edition 1.88Table 2 — Chemical composition (ladle analysis) for plates1 2 3 4 5 6 7 8 9 10 11C Mn Si P S Nb VNb+V*Al+Maximum contentMaximumcarbonequivalent#Grade%(m/m) % 240WA240WC240WDD0,220,220,221,601,601,600,500,500,500,0400,0400,0400,0500,0500,0400,010,010,100,030,030,100,040,040,100,100,100,100,38300WA300WC300WDD0,220,220,221,601,601,600,500,500,500,0400,0400,0400,0500,0500,0400,030,030,100,100,100,100,050,050,100,100,100,100,43350WA350WC350WDD0,220,220,221,601,601,600,500,500,500,0400,0400,0400,0400,0400,0400,100,100,100,100,100,100,100,100,100,100,100,100,45450WA450WC450WDD0,220,220,221,601,601,600,500,500,500,0400,0400,0400,0400,0400,0400,100,100,100,200,200,200,150,150,150,100,100,100,51NOTE The total combination of Cu, Ni, Cr and Mo should not exceed 0,5 % max.*It is permissible that the steels be supplied with no niobium or vanadium. If grain refining elements areused, their presence shall be reported by the manufacturer on test certificates. If Nb or V is usedsingly, the maximum percentages of either shall conform to the limits given in columns 7 and 8. If theyare used in combination, the maximum percentage shall conform to the limits given in column 9.+Addition of these elements is optional, and their presence may be reported by agreement between themanufacturer and the purchaser (see appendix B.2.5).#The maximum carbon equivalent, as specified in column 11, may be specified by agreement betweenthe manufacturer and the purchaser (see appendix B.2.4), and if the purchaser requires the addition ofcopper, the relevant maximum carbon equivalent given in column 11 shall be increased by 0,02 %.Amdt 1; amdt 3; amdt 6; amdt 7; amdt 8Table 3 — Permitted deviations in product analysisabove the maximum specified in tables 1 and 21 2 3 4 5 6Deviations above maximumspecified ladle analysis% (m/m)GradeC Si Mn P S240WA240WC240WDD0,040,040,040,050,050,050,100,100,100,0100,0100,0100,0100,0100,010300WA300WC300WDD0,040,040,040,050,050,050,100,100,100,0100,0100,0100,0100,0100,010350WA350WC350WDD0,040,040,040,050,050,050,100,100,100,0100,0100,0100,0100,0100,010450WA450WC450WDD0,040,040,040,050,050,050,100,100,100,0100,0100,0100,0100,0100,010This eStandard is exclusively for Ken Green of CCC (Botswana) for use on one standalone PC. To access it from a file server or intranet constitutes a violation of SABS copyright rules. Note that only one printout of the standard may be made.SANS 1431:2007Edition 1.83.6 Mechanical properties3.6.1 Tensile propertiesThe tensile strength, yield strength and elongation of a steel shall be determined in accordance with 6.3and the actual values for these properties shall comply with the appropriate requirements given intables 4, 5 and 6.3.6.2 Impact resistance testsThe impact resistance of a steel, determined using the Charpy V-notch impact test in accordance with6.4, shall comply with the appropriate requirements given ina) tables 4, 5 and 6 when standard test pieces are used, andb) table 7 when subsidiary test pieces are used.3.6.3 Bending propertiesWhen the determination of a bend test has been agreed upon between purchaser and manufacturer,the bend test shall be carried out in accordance with 6.5 and the sample shall be deemed to complywith the requirement for bending if the test piece shows no sign of fracture during the bending process.9SANS 1431:2007Edition 1.813Table 7 — Charpy V-notch impact test on subsidiary test pieces1 2Size of subsidiarytest pieceAverage minimum impact resistancemm J 10 × 7,5 22 10 × 5194 Marking4.1 Identification of castThe manufacturer shall identify the ingots, billets, slabs, plates, bundles of sections and bars, etc., in such a way as to enable the finished steel to be traced to the cast from which it was made.4.2 Each piece or parcel of steel shall be legibly marked with the manufacturer's name or trade mark, and with the cast number or identification marks by which the steel can be traced to the cast from which it was made.4.3 The material shall be legibly marked with additional marking, if so required by the purchaser.4.4 When parcels of material of the same steel are securely bundled, an acceptable label or tab shall be attached to each bundle and marked as in 4.1 and 4.2.5 Test certificates5.1 Manufacturer's supplya) Each consignment of steel shall be accompanied by a certificate from the supplier. The certificate shall include identification of the steel and the results of all the relevant tests that have been carried out on the steel.NOTE Electronic transfer of a certificate is acceptable.Amdt 7b) No steel shall be dispatched from the manufacturer's works until all the tests have been carried out and the material has been found to comply with the requirements of this specification.5.2 Merchant supplyIf any steel is supplied from a merchant's stock, the merchant shall satisfy the purchaser by means of numbers or identification marks combined with a manufacturer's certificate, that such steel has beentested and complies with all the relevant requirements of this specification.Amdt 16 Inspection and methods of test6.1 InspectionVisually examine each piece or parcel or bundle of steel for compliance with the requirements of section 4.SANS 1431:2007Edition 1.86.2 Test for chemical compositionUse any reliable method of chemical analysis (including spectrographic methods) to determine the content of each constituent of each sample and check for compliance with the requirements of 3.5.1, 3.5.2 or 3.5.3, as relevant.NOTE The relevant methods given in ASTM E350, ASTM E322, ASTM E353, ASTM E354 and ASTM E415a have been found to be suitable, and should be used in all cases of dispute. Amdt 5; amdt 76.3 Tests for tensile properties6.3.1 Number of tensile testsOne tensile test shall be carried out per 40 tonnes or part thereof, of the same product form (e.g. plates, types of sections, etc.), of the same range of thickness or diameter, from the same cast, and showing a thickness or diameter variation of not more than 5 mm above or below the thickness or diameter of the product sampled, or not more than 25 mm in the case of plates of thickness exceeding 75 mm.6.3.2 Position of test samples6.3.2.1 Direction of samplesCut tensile test samples in the transverse direction from plates and longitudinally from sections and bars.6.3.2.2 Position for sections and barsTake samples from the relevant positions shown in appendix C.1. Take the test samples from the web or flange, at the manufacturer's option.6.3.2.3 Position for platesTake samples from one end of the plate midway between the centre and one edge (see appendix C.1).6.3.2.4 Alternative positionWhen two rolled surfaces cannot be retained, round or rectangular test pieces having a thickness or diameter of at least 12,5 mm shall be taken from the relevant positions indicated in appendix C.2.6.3.3 Test piecesAppropriate tensile test pieces shall be so prepared (in accordance with the requirements of SANS 6892 from the test samples obtained in accordance with 6.3.2) that, wherever practicable, the rolled surface of the steel is retained on two opposite sides of the test piece.Amdt 36.3.4 Tests6.3.4.1 ProcedureDetermine, in accordance with SANS 6892, the tensile strength R m, the yield stress R e, and the elongation A. Check for compliance with the relevant requirements for tensile properties given in 3.6.1.Amdt 3NOTE For the yield strength, either the upper yield stress R eH, or the 0,5 % proof stress (total elongation) R t0,5, may be determined. Amdt 1 14SANS 1431:2007Edition 1.8156.3.4.2 DisputeIf the result is in dispute, the yield stress shall be deemed not to have been reached until the total extension under load, as determined by the extensometer or dividers, is observed to be 0,5 % of the gauge length.6.4 Tests for impact resistance6.4.1 Number of testsCarry out impact tests on three adjacent test pieces per thickness per lot of 40 tonnes or part thereof, from the same cast.6.4.2 Position of test samplesTake samples from the relevant positions given in appendix D. The impact test samples shall be taken from within 25 mm of the centres of the positions shown in appendix D.6.4.3 Standard test piecesCut the test pieces parallel to the principal direction of rolling, with the axis of the notch perpendicular to the rolled surface of the product (see figure 1(a)). Transverse test pieces (see figure 1(b)) may be cut from plate either at the option of or by agreement with the supplier. (This shall be indicated on the test certificates.) Prepare the test pieces in accordance with SANS 148-1 and the following requirements. Amdt 5; amdt 8a) Thick material . For thicknesses of 20 mm and over, so machine standard test pieces of size 10 mm × 10 mm that they do not include material nearer to the surface than 3 mm.b) Thin material . For material of thickness less than 20 mm but exceeding 12 mm, so machine standard test pieces of size 10 mm × 10 mm that they do not include material nearer to the surface than 1 mm.(a) (b)Figure 1 — Orientation of test pieces6.4.4 Subsidiary test piecesIf the material is too thin to permit the preparation of test pieces of size 10 mm × 10 mm, carry out the tests using the next largest subsidiary test piece given in SANS 148-1. In this case, reduce theminimum specified impact value in accordance with table 7 (of this specification).Amdt 5; amdt 8NOTE Impact tests are not required for material of thickness less than 5 mm unless agreed upon between the manufacturer and the purchaser .SANS 1431:2007Edition 1.86.4.5 Impact resistance testsNOTE The specified impact properties are for quality control purposes during the manufacture of the steel, and the fact that low temperatures are used for these tests does not necessarily imply that the steels described are completely satisfactory for use at these temperatures.Both welding and forming (bending, punching, etc.) are known to affect the toughness of the as-delivered steel.6.4.5.1 Method of testingUse the Charpy V-notch test in accordance with SANS 148-1 and at the appropriate temperature, for the grade given in table 4, 5 or 6, as relevant.Amdt 5; amdt 8 6.4.5.2 Standard test piecesCheck whether the average impact value obtained from the three standard test pieces of size 10 mm × 10 mm complies with the requirement for impact resistance given in 3.6.2(a).6.4.5.3 Subsidiary test piecesCheck whether the average impact value obtained from three subsidiary test pieces is at least equal to the appropriate value given in 3.6.2(b).6.4.5.4 Individual valuesFor standard test pieces and for subsidiary test pieces, one individual value may be below the average required value provided that it is at least equal to 70 % of the required value.6.5 Bend test6.5.1 Number of testsWhen it has been agreed that a bend test is required, one bend test shall be carried out per lot of 40 tonnes or part thereof, from the same cast.6.5.2 Test samplesSamples for the preparation of the bend test pieces shall be taken from positions similar to those for tensile tests, as shown in appendix C (see also 6.3.2).6.5.3 Test piecesa) Obtain bend test pieces prepared from the samples above (see 6.5.2). Cut the test piecestransversely for plates, and lengthwise for sections and bars.b) Use a rectangular test piece at least 40 mm wide wherever possible; otherwise, use a test piece ofthe maximum width attainable.c) For material of thickness exceeding 25 mm, a bend test piece of width 40 mm and thickness 25 mmmay be used, provided that the surface to be put in tension is one of the original surfaces of the material.d) At the manufacturer's option, round, square and flat bars may be bent in full section as rolled.e) In all bend tests, the rough edge or arris caused by cutting may be removed and the edges slightlyradiused by filing, grinding or machining, but the test piece shall receive no other preparation.16SANS 1431:2007Edition 1.8176.5.4 Bending requirementAmdt 7Maintain the test piece at room temperature and bend it through 180°, to the appropriate internaldiameter given in table 8 for the relevant grade.Amdt 76.5.5 EvaluationDeem the steel to have passed the bend test if the test piece shows no sign of fracture during the bend test.Table 8 — Bend test requirements1 2 Bend diameter * for thicknessGradeT240WA 240WC 240WDD 3T 3T 3T 300WA 300WC 300WDD 3T 3T 3T 350WA 350WC 350WDD 3T 3T 3T 450WA 450WC 450WDD3,5T 3,5T 3,5T* The bend diameters given in this table are for specially prepared test pieces (see 6.5.3) and should not be used as a guide for actual bending during manufacture, where conditions are normally more severe.6.6 Retests6.6.1 Tensile and bend testsShould a test piece not comply with the tensile or bend test requirements, two further tests for the specific property shall be carried out on samples taken from the plate, flat bar, wide flat, universal wide flat, section or bar from which the original test piece was prepared.In the case of universal beams, columns and bearing piles and joists with 5° taper flanges, the retests may, at the manufacturer's option, be made on test pieces taken from the flange.Provided the results of both these further tests comply with the test requirements for the specific property, deem all the material represented to comply with the requirements for this property.If the results of either of these additional tests do not comply with the test requirements, the material from which the test pieces were cut fails to comply with the requirements for this property. The remaining material may still comply with the requirements for this property, provided that two samples of the remaining material are tested in accordance with the test and found to comply with the requirements for this property.。

康涅克斯DataMan

DataMan®60Quick Reference Guide2020April14Revision:6.1.6SR2.4PrecautionsTo reduce the risk of injury or equipment damage,observe the following precautions when you install the Cognex product:l Route cables and wires away from high-current wiring or high-voltage power sources to reduce the risk of damage or malfunction from thefollowing causes:over-voltage,line noise,electrostatic discharge(ESD),power surges,or other irregularities in the power supply.l Changes or modifications not expressly approved by the party responsible for regulatory compliance could void the user’s authority to operate theequipment.l Ensure that the cable bend radius begins at least six inches from the connector.Cable shielding can be degraded or cables can be damaged orwear out faster if a service loop or bend radius is tighter than10X the cablediameter.l This device should be used in accordance with the instructions in this manual.l All specifications are for reference purposes only and can change without notice.1Internal illumination23-position lens cap3Focal position indicator4External illumination connector5Status LEDs6LED aimer7Lens1Directly connected cable terminating in a DB15connector providing:power,I/O,USB,and RS-232connectivity2Ethernet RJ-45connector3Mounting pointsCABLESUSB Cable,1.5m(DM100-USB-000),USB Cable,3m(DM100-USB-030)USB and Flying Leads I/O Cable,2.0m(DM-USBIO-00)RS-232and Flying Leads I/O Cable,2.5m(DM-RS232IO-00)RS-232Cable,1.5m(DM100-RS232-000),Extension Cable,5m(DM100-EXTCBL-000)Flying Leads Connection Cable,5m(DM50-PWRIO-05)RS-232/USB adapter connector(DM100-PATCH-000)Ethernet Cable:use CBL-C10E or any standard CAT5/5e,SF/FTP or S/FTP cableOTHERPower Supply,6V(DM100-PWR-000)Pivot Mounting Bracket(DM100-PIVOTM-00)Universal Mounting Bracket(DM50-UBRK-000)Control Box(DM-CTRLBOX-00)Perform the following steps:1.Connect the breakout cable.2.Connect the reader to the PC.3.Connect the reader to an Ethernet network with a standard CAT5/5e,SF/FTP or S/FTP cable.For information on the pinout and the wire colors,see section Connections,Optics and Lighting in the DataMan60Reference Manual.Installation procedures and specifications are presented in detail in the DataMan®60 Reference Manual,which is installed with the DataMan Setup Tool.From the Windows Start menu,select the following to access the manual:All Programs> Cognex>DataMan Software vx.x.x>Documentation.:All cable connectors are keyed to fit the connectors on the reader.not force the connections or damage may occur.MountingMounting the DataMan reader at a slight angle(15°)can reduce reflections and improve performance.Use the set of mounting holes on the rear part to mount the DataMan reader.1.Connect the Ethernet cable's RJ-45connector to a switch/router or PC,asapplicable.Connect the Breakout Cable1.Verify that the power supply being used is unplugged and not receivingpower.2.Connect the cable on the back of the device to an RS-232adapter cablewith power tab.3.Connect a6V power supply.4.Restore power to the power supply and turn it on if necessary.Connect the ReaderFollow the steps below to connect your reader to power and network:1.Connect the RS-232cable to your reader.2.Connect the cable to a power supply.To configure a DataMan60reader,the DataMan Setup Tool software must be installed on a networked PC.The DataMan Setup Tool is available from the DataMan support site:/support/dataman.1.After installing the software,connect the DataMan60reader to your PC.unch the DataMan Setup Tool and click Refresh.3.Select your DataMan60reader from the list and click Connect.Weight98g(including cable)OperatingTemperature0ºC—40ºC(32ºF—104ºF)Storage Temperature-10ºC—60ºC(-14ºF—140ºF)Maximum Humidity95%(non-condensing)Environmental IP40Vibration IEC60068-2-6and60068-2-27LED Safety IEC62471:Exempt risk group,no further labeling is required.Codes1-D barcodes:Codabar,Code39,Code128,and Code93,Interleaved2of5,Pharma,GS1 DataBar,Postal,UPC/EAN/JAN2-D barcodes:Data Matrix™QR Code and microQR Code,MaxiCode,RSS/CS,PDF417,MicroPDF417Discrete I/O Operating Limits Output0,1IMAX@24VDC25mAV MAX24VOutput2Source VTYP4VSink V IH4V-V PSUV IL0—2V Input0(Trigger)Input1V IH4—26VV IL0—2VI TYP3mAPower SupplyRequirementsV PSU4,5—24VDC2.5W maximumLPS or NEC class2power supply Duplex Mode Full duplex or half duplexLED WavelengthsThe following table shows LED types and the related wavelengths:DataMan60readers meet or exceed the requirements of all applicable standards organizations for safe operation.However,as with any electrical equipment,the best way to ensure safe operation is to operate them according to the agency guidelines that follow.Please read these guidelines carefully before using your device.FCC ClassComplianceLED Safety StatementThis device has been tested in accordance with IEC62471,and has been certified to be under the limits of Exempt Risk Group.No further labeling is required.For European Community UsersCognex complies with Directive2012/19/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of4July2012on waste electrical and electronic equipment (WEEE).This product has required the extraction and use of natural resources for its production.It may contain hazardous substances that could impact health and the environment,if not properly disposed.In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural resources,we encourage you to use the appropriate take-back systems for product disposal.Those systems will reuse or recycle most of the materials of the product you are disposing in a sound way.The crossed out wheeled bin symbol informs you that the product should not be disposed of along with municipal waste and invites you to use the appropriate separate take-back systems for product disposal.If you need more information on the collection,reuse,and recycling systems,please contact your local or regional waste administration.performance of this product.Hazardous Substances 有害物质Part Name 部件名称Lead (Pb)铅Mercury (Hg)汞Cadmium (Cd)镉Hexavalent Chromium (Cr (VI))六价铬Polybrominated biphenyls (PBB)多溴联苯Polybrominated diphenyl ethers (PBDE)多溴二苯醚DM60X O O OOOThis table is prepared in accordance with the provisions of SJ/T 11364.这个标签是根据SJ /T 11364的规定准备的。

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Extract from the online
catalog
EMCV 1,5/ 8-GF-3,81
Order No.: 1879340
The figure shows a 10-position version of the product
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=1879340
Header, nominal current: 8 A, rated voltage: 160 V, pitch: 3.81 mm, no. of positions: 8, mounting: press in
http://
Please note that the data given
here has been taken from the
online catalog. For comprehensive
information and data, please refer
to the user documentation. The
General Terms and Conditions of
Use apply to Internet downloads. Technical data
Dimensions / positions
Pitch 3.81 mm
Number of positions8
Pin dimensions0,8 x 0,8 mm
Hole diameter 1.45 mm
Technical data
Insulating material group IIIa
Rated surge voltage (III/3) 2.5 kV
Rated surge voltage (III/2) 2.5 kV
Rated surge voltage (II/2) 2.5 kV
Rated voltage (III/2)160 V
Rated voltage (II/2)250 V
Connection in acc. with standard EN-VDE
Nominal current I N8 A
Nominal voltage U N160 V
Maximum load current8 A
Insulating material PBT
Inflammability class acc. to UL 94V0
Certificates / Approvals
Approval logo
CUL
Nominal voltage U N300 V
Nominal current I N8 A
UL
Nominal voltage U N300 V
Nominal current I N8 A
Certification CUL, GOST, UL
Accessories
Item Designation Description
Assembly
1877258EMC 1,5-SH Stamp holder, for upper and lower stamp
1877274EMCV 1,5-SS 1Stamp set, consisting of upper and lower stamp for 3.81 mm pitch,
2 to 16-pos.
Marking
0804109SK 3,81/2,8:FORTL.ZAHLEN Marker card, printed horizontally, self-adhesive, 10-section marker
strip, 14 identical decades marked 1-10, 11-20 etc. up to 91-
(99)100, sufficient for 140 terminal blocks
Plug/Adapter
1734634CP-MSTB Coding profile, is inserted into the slot on the plug or inverted
header, red insulating material
Additional products
Item Designation Description
General
1851290FK-MCP 1,5/ 8-STF-3,81Plug, with screw flange, nominal current: 8 A, rated voltage: 160
V, pitch: 3.81 mm, no. of positions: 8, type of connection: Spring-
cage connection
1850916FRONT-MC 1,5/ 8-STF-3,81Plug component, nominal current: 8 A, rated voltage: 160 V, pitch:
3.81 mm, no. of positions: 8, type of connection: Screw connection 1827761MC 1,5/ 8-STF-3,81Plug with screw flange, nominal current: 8 A, rated voltage: 160
V, pitch: 3,81 mm, no. of positions: 8, type of connection: Screw
connection
1852422MCC 1/ 8-STZF-3,81Plug component, nominal current: 8 A, rated voltage: 160 V, pitch:
3.81 mm, no. of positions: 8, type of connection: Crimp connection 1828401MCVR 1,5/ 8-STF-3,81Plug component, nominal current: 8 A, rated voltage: 160 V, pitch:
3.81 mm, no. of positions: 8, type of connection: Screw connection 1828553MCVW 1,5/ 8-STF-3,81Plug component, nominal current: 8 A, rated voltage: 160 V, pitch:
3.81 mm, no. of positions: 8, type of connection: Screw connection 1897607QC 0,5/ 8-STF-3,81Plug, nominal current: 6 A, rated voltage: 320 V, pitch: 3.81
mm, number of positions: 8, connection method: Insulation
displacement connection QUICKON
Drawings
Drilling diagram
Dimensioned drawing
Address
PHOENIX CONTACT GmbH & Co. KG
Flachsmarktstr. 8
32825 Blomberg,Germany
Phone +49 5235 3 00
Fax +49 5235 3 41200
http://www.phoenixcontact.de
© 2008 Phoenix Contact
Technical modifications reserved;。