RD-2415D中文资料

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RM-241.8DHP中文资料

ECONOLINE
DC/DC-Converter
RM & RL Series
0.25 Watt SIP4 & DIP8 Single Output
Selection Guide
Part Number SIP 4 RM-xx1.8S RM-xx3.3S RM-xx05S RM-xx09S RM-xx12S RM-xx15S DIP8 (2kV) RL-xx1.8S (H) RL-xx3.3S (H) RL-xx05S RL-xx09S RL-xx12S RL-xx15S (H) (H) (H) (H) Input Voltage (VDC) 1.8, 3.3, 5, 9, 12, 15, 24 1.8, 3.3, 5, 9, 12, 15, 24 1.8, 3.3, 5, 9, 12, 15, 24 1.8, 3.3, 5, 9, 12, 15, 24 1.8, 3.3, 5, 9, 12, 15, 24 1.8, 3.3, 5, 9, 12, 15, 24 Output Voltage (VDC) 1.8 3.3 5 9 12 15 Output Current (mA) 139 76 50 28 21 17 Efficiency (%) 70 65-70 66-72 70-72 70-72 70-76
25.000 20.000 25.000 20.000
Deviation / Load
Deviation from Nominal (%)
15.000 10.000 5.000 0.000 -5.000 -10.000
Deviation from Nominal (%)
0505
3.305
15.000 10.000 5.000 0.000 -5.000 -10.000

LTC2415IGN资料

q
ELECTRICAL CHARACTERISTICS
5V ≤ VCC INCM = 1.25V, (Note 6) 5V ≤ VCC ≤ 5.5V, REF+ = 5V, REF– = GND, VINCM = 2.5V, (Note 6) q REF+ = 2.5V, REF– = GND, VINCM = 1.25V, (Note 6) 2.5V ≤ REF+ ≤ VCC, REF– = GND, GND ≤ IN+ = IN– ≤ VCC, (Note 14) 2.5V ≤ REF+ ≤ VCC, REF– = GND, GND ≤ IN+ = IN– ≤ VCC 2.5V ≤ REF+ ≤ VCC, REF– = GND, IN+ = 0.75REF+, IN– = 0.25 • REF+ 2.5V ≤ REF+ ≤ VCC, REF– = GND, IN+ = 0.75REF+, IN– = 0.25 • REF+ 2.5V ≤ REF+ ≤ VCC, REF– = GND, IN+ = 0.25 • REF+, IN– = 0.75 • REF+ 2.5V ≤ REF+ ≤ VCC, REF– = GND, IN+ = 0.25 • REF+, IN– = 0.75 • REF+ 5V ≤ VCC ≤ 5.5V, REF+ = 5V, REF – = GND, GND ≤ IN– = IN+ ≤ VCC, (Note 13)
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)

RP20-2415SF中文资料

August 2002PO Specifications(typical at nominal input and 25°C unless otherwise noted)Output Power20W max. Voltage Accuracy (full Load and nominal Vin)±1% Voltage Adjustability±10% Minimum Load (see note 1)10% of FL Line Regulation (LL-HL at FL)±0.2% max. Load Regulation (10% to 100% FL)±0.5% Ripple and Noise,20MHz BW (measured with a 104pF/50V MLCC) 75mVp-p Temperature Coefficient±0.02%/°C max. Transient Response Recovery Time,25% Load Step Change300µsec Over Voltage Protection (zener diode clamp): 1.5V Output TBD1.8V Output TBD2.5V Output3.6V3.3V Output 3.9V5V Output 6.2V Over Load Protection (% of full load at nominal Vin)150% typ. Short Circuit Protection Hiccup,Automatic Recovery Input Voltage Range 24V types nominal input18-36VDC48V types nominal input36-75VDC Input Filter L-C Type Input Surge Voltage (100 ms max.)24V Input50VDC48V Input100VDC Input Reflected Ripple (see note 2) Nominal Vin and full load100mAp-p Start Up Time (nominal Vin and constant resistor load)20ms typ. Remote ON/OFF (see note 3)DC-DC ON Open or 3.5V < Vr < 12VDC-DC OFF Short or 0V < Vr < 1.2V Remote off Input Current Nominal Vin 2.5 mA Isolation Voltage1600VDC Isolation Resistance109ΩIsolation Capacitance1000pF Switching Frequency 300kHz,typ. Approved to Safety Standards UL 1950,EN60950 Case Material Nickel-Coated Copper Base Material Non-conducted Black Plastic Potting Material Epoxy (UL94-V0) Weight27g (0.95 oz) Dimensions50.8 x 25.4 x 10.2 mm MTBF (MIL-HDBK-217F,TA = 25°C full load) 3.369 x 105Hours Operating Temperature Range -40°C to +85°C (with derating) Maximum Case Temperature+100°C Storage Temperature Range-55°C to +105°C Thermal Impedance (see note 4)Natural convection12°C/Watt Thermal Shock MIL-STD-810D Vibration10-55Hz,2G,3 Min.Period,30 Min.along X,Y and Zcontinued on next page August 2002PO 53PO August 2002。

RD-2415DP中文资料

0512
1212
15.000 10.000 5.000 0.000 -5.000 -10.000
0515
2415
2412
0% 20% 40% 60% Total Output current (%) 80% 100%
1215
0% 20% 40% 60% Total Output current (%)
80%
100%
74
July-2006

元器件交易网
ECONOLINE
DC/DC-Converter
Package Style and Pinning (mm)
RD & RC Series
3rd angle projection
Bottom View
Pin Connections Pin # 1 2 4 5 RD +Vin –Vin –Vout Com +Vout
0.25
1.00 ø+0.15/0 2.54
5 x 2.54
2.54
Top View
6
XX.X ± 0.5 mm XX.XX ± 0.25 mm
14 PIN DIP Package
19.90 7.10 3.25 2.0 15.24
10.00
Dual Output RECOM RC-0505D ****
7.70
Recommended Footprint Details
ø 0.51 typ.
1 14
Pin Connections Pin # 1 7 8 9 11 RC –Vin NC Com +Vout –Vout +Vin
DC/DC-Converter

Dell UltraSharp U2415 使用指南说明书

Dell UltraSharp U2415 使用指南機型： U2415規格型號： U2415b注意、小心與警告訊息注意：「注意」會指出重要資訊的注意事項，可幫助您更妥善使用電腦。

小心：顯示「小心」，表示未遵循指示可能導致硬體損壞或資料遺失。

警告：「警告」標誌意指可能會造成財產損害、人體傷害或導致死亡的標誌。

____________________Copyright © 2014-2019 Dell Inc. All rights reserved.本文中使用的商標：Dell和DELL標誌是 Dell Inc. 的商標；Microsoft和Windows是 Microsoft Corporation 在美國及/或其它國家的商標或註冊商標；Intel是 Intel Corporation 在美國及其它國家的註冊商標；ATI 是 Advanced Micro Devices, Inc. 的商標；ENERGY STAR 是美國環保署的註冊商標。

作為 ENERGY STAR 合作夥伴，Dell Inc. 認定本產品符合 ENERGY STAR 效能方面的標準。

此文件中可能會使用其它商標與商品名稱來參照聲稱的標誌與名稱或其產品的實體。

Dell Inc. 放棄除了其自己的商標與商品名稱以外的任何商標與商品名稱的所有利益。

2019 - 11Rev. A08目次1關於您的顯示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5包裝內容 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5產品功能特色 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7認識各部位與控制裝置. . . . . . . . . . . . . . . . . . . . . . . . . . . . .8顯示器規格 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12隨插即用相容性 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21通用串列匯排流 (USB) 介面. . . . . . . . . . . . . . . . . . . . . . . .22液晶顯示器品質與像素政策. . . . . . . . . . . . . . . . . . . . . . . .23維護指南 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 2設定顯示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25安裝支架 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25連接您的顯示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26整理您的連接線 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32安裝連接線外蓋 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32移除顯示器支架 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33取下連接線外蓋 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33壁掛式組件（選購）. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 3操作顯示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35開啟顯示器電源 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35使用前面板控制按鈕. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35使用畫面顯示項目 (OSD) 功能表 . . . . . . . . . . . . . . . . . . .37設定最大解析度 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51使用傾斜、旋轉和垂直展開功能. . . . . . . . . . . . . . . . . . . .52調整您系統的旋轉顯示設定. . . . . . . . . . . . . . . . . . . . . . . .56 4疑難排解. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57自我測試 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57內建診斷工具 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58常見問題 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59產品規格問題 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61通用串列匯排流 (USB) 特定問題. . . . . . . . . . . . . . . . . . . .61行動高解析度連結 (MHL) 特定問題 . . . . . . . . . . . . . . . . .62目次|35附錄. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 FCC 聲明（僅針對美國） . . . . . . . . . . . . . . . . . . . . . . . . .63RoHS 聲明（僅針對台灣）/ Taiwan RoHS . . . . . . . . . .63與 Dell 聯絡. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64安裝您的顯示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 4|目次關於您的顯示器|5關於您的顯示器包裝內容您的顯示器包裝中包含以下元件。

5W可调光非隔离LED驱动器(RDR-251)-中文手册应用指南

LinkSwitch-PL集成了多项有用功能，可在使用相控可控硅调光器时扩大调光范围和降低外部电路的复杂度。LED输出电流由反馈引脚电压控制，反馈引脚电压随可控硅调光器的导通角按比例进行变化。当导通角减小时，反馈引脚电压随之降低，从而减小LED平均电流。
在接近AC输入半周期持续时间的25%时，开始调整反馈引脚参考电压。超过该阈值(jOS)后，VFB和LED输出电流将降低，直到
LNK454/456-458/460 LinkSwitch™-PL产品系列
带可控硅调光、单级PFC和恒流控制的LED驱动器IC，适用于非隔离式应用
产品特色
大幅简化离线式LED驱动器 • 无闪烁的相位控制可控硅调光 • 单级功率因数校正(PFC)及精确恒流(CC)输出 • 输入使用容量很小的电容，不使用电解电容，元件数量极少，

LNK454/456-458/460
IC供电和旁路引脚在功率MOSFET处于关断期间，内部的5.85 V稳压器就会从漏极引脚电压吸收电流，将连接到旁路引脚的旁路电容充电到5.85 V。旁路引脚是内部供电电压节点。当功率MOSFET导通时，器件利用储存在旁路电容内的能量工作。内部电路极低的功率耗散使LinkSwitch-PL可使用从漏极吸收的电流持续工作。一个1 µF 的旁路电容就足够实现高频率的去耦及能量存储。调光应用可能需要更高的旁路电容值。
启动、开关频率及导通时间范围启动时，控制器采用初始开关频率fMIN和最小导通时间tON(MIN)。输出电容的充电和提供到输出LED的能量，决定着每个AC输入电压半周期所更新的功率MOSFET开关频率和导通时间的增加幅度。
稳态开关频率和导通时间由输入电压、LED上的电压降及转换器效率决定。
轻载条件下，当器件达到最小频率fMIN和导通时间tON(MIN)时，控制通过跳过周期进行调整。在此工作模式下，输入电流没有功率因数校正，平均输出电流无法确保处于正常范围内。反馈引脚周期跳频阈值从接近正常调整水平的两倍，减小至刚刚超出在此条件下限制输出功率所需的水平。设计合理的电源在正常负载条件下是不会在此模式下工作的。如果电源设计正确，在连接到正常负载时，它将在[fMIN … fMAX]的开关频率范围内进行工作，且导通时间缩短到tON(MIN)和tON(MAX)之间。

SDI2415中文资料

•C ompa c t for H igh D en s ity P CB M ount •D C C ontrol •S CR O utputFastFax Document No.102SERIES SDV, SDI.Rev. 042302PAGE 1 OF 1S erie s S DV, S DI1.5 Amp • 120/240Vac • 16 PIN DIP Package The Series SDV and SDI solid state relays are rated at 1.5 Amps RMS at ambient temperatures up to 40ûC . The compact 16 pin DIP package is perfect for high density printed circuit boards. The SDV is voltage operated, and the SDI is cur-rent operated. Both are offered in either zero voltage or random switch-ing (R) versions.Manufactured in Crydom's ISO 9002Certified facility for optimum product performance and reliability.MODEL NO.S DV2415S DV2415R S DI2415S DI2415RIN P U T SPE C I F I C A T ION S ➀Control Voltage Range 3.5-10 Vdc 3.5-10 Vdc------Control Current Range ------10-35 mA 10-35 mANominal Input Impedance270 Ohm 270 Ohm ------Typical Input Current @ 5 Vdc 15 mAdc 15 mAdc ------Must Turn On Voltage 3.5 Vdc3.5 Vdc------Must Turn On Current ------10 mA10 mA Must Turn Off Voltage1.0Vdc1.0Vdc------Must Turn Off Current------ 1 mA1 mAOU T P U T SPE C I F I C A T ION S ➀Operating Voltage Range (47-63 Hz)12-280 Vrms Load Current Range .025 - 1.5 Arms Transient Over-Voltage 600 Vpk Max. Surge Current, (16.6ms)30 Apk Min. Off-State dv/dt @ Max. Rated Voltage ➂500 V/µsec Max.Off-State Leakage @ Rated Voltage.01 mArms Max. On-State Voltage Drop @ Rated Current 1.2 VpkMax.Turn-On Time 1/2 cycle 0.1 msec1/2 cycle0.1 msecMax. Turn-Off TIme1/2 cyclePower Factor (Min.) WIth Max. Load0.5G E N E R A L SPE C I F I C A T ION SDielectric Strength➁3750 VrmsInsulation Resistance (Min.) @ 500 Vdc ➁109Ohm Max. Capacitance, Input-Output2.0 pF Ambient Operating Temperature Range-30 to 80˚C Ambient Storage Temperature Range-30 to 125˚C M E C HANI C A L SPE C I F I C A T ION SWeight : (typical).10 oz. (2.9 g)Encapsulation:Thermally Conductive EpoxyC U R R E N TDE R A T I N G C U R V E1.50.51.020406080AMBIENT TEMPERATURE (˚C)L O A D C U R R E N T (A M P S )Max. Load Current vs. Temp.PIN 8:AC LOAD PIN 10:AC LOADPIN 16:+DC CONTROL PIN 1: -DC CONTROLG E N E R A L N O T E S➀All parameters at 25¼C unless otherwise specified.➁Dielectric and insulation resistance are measured between input and output.➂Off-State dv/dt test method per EIA/NARM standard RS-443.©2002 CRYDOM CORP, Specifications subject to change without notice.All dimensions are in inches (millimeters)A PP R OVA L SUL 116950CSA LR81689For recommended applications and more information contact:USA: Sales Support (877) 502-5500 Tech Support (877) 702-7700 FAX (619) 710-8540Crydom Corp, 2320 Paseo de las Americas, Ste. 201, San Diego, CA 92154Email : sales@ WEB SITE: UK: +44 (0)1202 365070 • FAX +44 (0)1202 365090 Crydom International Ltd., 7 Cobham Road, Ferndown Industrial Estate, Ferndown, Dorset BH21 7PE, Email : intsales@. GERMANY: +49 (0)180 3000 506元器件交易网。

UPD2415D-10;UPD2415DF-10;中文规格书,Datasheet资料

MECHANICAL SPECIFICATIONS
WIRING DIAGRAM
/
THERMAL DERATE INFORMATION
AGENCY APPROVALS
Designed in accordance with the requirements of IEC 62314
Parameters
2500 Vrms
109 Ohm
8 pF -40 to 80°C -40 to 125°C 1.44 oz. (40.8g)
GENERAL NOTES
1) All parameters at 25°C and per section unless otherwise specified. 2) Off-state dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1 3) Heat sinking required, see following pages for derating curves.
PRODUCT SELECTION
Control Voltage
3-32 VDC
15A
UPD2415D
15A
UPD2415D-10
AVAILABLE OPTIONS
OUTPUT SPECIFICATIONS (1)
Description (Per Channel)
Operating Voltage (47-440Hz) [Vrms] Maximum Load Current [Arms](3) Minimum Load Current [mArms] Transient Overvoltage [Vpk] Maximum 1 Cycle Surge Current (50/60Hz) [Apk] Maximum On-State Voltage Drop @ Rated Current [Vpk] Thermal Resistance Junction to Case [°C/W] Maximum I² t for fusing (50/60Hz, 1/2 cycle) [A² sec] Maximum Off-State Leakage Current @ Rated Voltage [mArms] Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] (2) Minimum Power Factor (with Maximum Load)

LDS-241所用(接地)变保护使用说明书

4.1 装置命名规则.....................................................................................................................4 4.2 硬件说明.............................................................................................................................4 4.3 保护功能原理.....................................................................................................................5 4.4 装置的监控功能.................................................................................................................9
6. 安装调试 .............................................................................................................................. 15
6.1 通电前检查.......................................................................................................................15 6.2 通电检查...........................................................................................................................16 6.3 保护功能试验...................................................................................................................16 6.4 开关传动试验...................................................................................................................18 6.5 绝缘试验...........................................................................................................................18

BWD2415G中文资料

90 85 80
EFFICIENCY %
75 70 65 60 55 50 45 40 10 20 30 40 50 60 70 80 90 100 EFF. BWD4812 EFF. BWD4808
General No Load Input Power Switching Frequency Isolation Input - Output Input - Case Output - Case Isolation Resistance - Input to Output Isolation Capacitance - Input to Output Case Temperature Standard Operating Range Storage Range Humidity Max., Non-Condensing Vibration, 3 Axes, 5 Min Each Safety Weight (Approx.) MCD10032 Rev. 1.0 0.7 W 200 kHz
元器件交易网 BWD Dual-Output DC-DC Series Data Sheet 2.5 Watts
Features • Industry-standard DIP package • Industry-standard pinout • 85°C case operation • Wide-range input • Input pi filter • 500V isolation • Short-circuit protection Description BWD dual-output dc-dc converters offer excellent regulation and isolation in an industry-standard DIP package. With several input voltage ranges, the BWD is ideal for industrial, telecom, and networking applications. The BWD features short-circuit protection, a low profile, and 500 VDC isolation. Please see the BWS Series for single-output applications.

SC2415中文资料

Models Available Strobe Models White RedSC2415W SC2415 SC241575W SC241575SC2430W SC2430SC2475W SC2475SC2495W SC2495 SC24115W SC24115SC24177W SC24177Horn/Strobe Models White RedPC2415W PC2415 PC241575W PC241575PC2430W PC2430PC2475W PC2475PC2495W PC2495 PC24115W PC24115PC24177WPC24177Accessory Mounting PlatesWhite Red BBSCW BBSCSystem Sensor’s SpectrAlert ® ceiling mount series strobes and horn/strobes offer afresh approach to addressing the unique needs for ceiling mount applications.Technology. Like the original SpectrAlert, the SpectrAlert ceiling mount series offer significant current draw reductions over other ceiling mount strobes and horn/strobes.Installation. SpectrAlert’s compact design also offers installation savings. Thestrobe and horn/strobe models mount to a 4˝×4˝×11⁄2˝ back box, and take up little room in the back box, making connections easier. And with SpectrAlert’s round shape, it is not necessary to align the back box with the room’s walls. SpectrAlert always lines up.Flexibility. SpectrAlert ceiling mount strobes and horn/strobes are available inseven different candelas, including 177 candela for sleeping areas. The horn/strobe’s tones are field-selectable through the use of a three position switch located on the back of the unit. Selections include electromechanical and 3 KHz tones, temporal and non-temporal patterns, and high and low volume.Aesthetics. SpectrAlert ceiling strobes and horn/strobes offer a design that is sensi-tive to the aesthetic demands of ceiling mount applications. The round shape main-tains a low profile appearance, similar to that of a smoke detector and provides clearly visible “FIRE” identification from all angles.Lower current drawAvailable in 15, 15/75, 30, 75, 95, 115,and 177 candelaHorn/strobe models include a threeposition switch for field-selecting horn tones:- Electromechanical/3KHz - Temporal/Non-temporal - High/Low dBA outputCeiling-specific shape, profile, and aestheticsSynchronizable with MDL Sync•Circuit ™moduleMounts to 4˝× 4˝× 11⁄2˝ back box Round shape offers greater placement flexibilityProduct OverviewSC241575W PC2475WS40117135-1209:20461-00-E 144-00-E元器件交易网General Specifications SpectrAlert Mounting DiagramsStrobe or Horn/Strobe with Mounting PlateStrobe or Horn/Strobe with Accessory Back Box SkirtStrobeStrobe shall be a System Sensor SpectrAlert Model _________ listed to UL 1971 and be approved for fire protective ser-vice where ceiling mount strobes are permitted. The strobe shall be wired as a primary signaling notification appliance and shall flash at 1Hz over the strobe’s entire operating range. The strobe light shall consist of a xenon flash tube and associated lens/reflector system.Horn/Strobe CombinationHorn/strobe shall be a System Sensor SpectrAlert Model _________ listed to UL 1971 and UL 464 and be approved for fire protective service where ceiling mount horn/strobes are permitted. The horn/strobe shall be wired as a primary signaling notification appliance and shall flash at 1Hz over its entire operating range. The strobe light shall consist of a xenon flash tube and associated lens/reflector system. The horn shall have two tone options, two audibility options, and the option to switch between a temporal and a non-temporal continuous pattern. These options shall be selected by a multi-position switch. Strobes shall be powered independently of the sounder with the removal of factory installed jump-er wires. The horn on horn/strobe models shall operate on a coded or non-coded power supply.Note: The strobes must be powered continuously for the horn to operate.BBSCW4 × 4 × 21/8˝Table 1-A: SpectrAlert Strobe UL Max. Current Draw (mA RMS)Strobe Setting 16-33V FWR Operating Current – Strobe (mA RMS)16-33V DC Operating Current – Strobe (mA RMS)15686415/757778301071137519720595239274115298325177399489Table 1-B: Horn UL Max. Current Draw Measurements (mA RMS)16-33V (DC)16-33V (FWR)TemporalLow Volume Electromechanical 23233000 Hz Interrupted 3323High VolumeElectromechanical 53443000 Hz Interrupted 5740Non-TemporalLow Volume Electromechanical 37293000 Hz Interrupted 3233High VolumeElectromechanical 49493000 Hz Interrupted5658Notes:1. Full Wave Rectified (FWR) voltage is a non-regulated, time-varying power source that is used on some power supply and panel outputs.2. The MDL causes a one-volt voltage drop in the notification appliance circuit.Table 1-C: 24V DC Horn/Strobe UL Max. Current Draw Measurements (mA RMS)TemporalNon-TemporalLow VolumeHigh VolumeLow VolumeHigh VolumeCandela SettingElectromechanical3000 Hz Electromechanical3000 Hz Electromechanical3000 Hz Electromechanical3000 Hz 15737376787575818615/758989919289909698301261251281281251251311347522522222222221921922122295272270271271266265269270115297297296296291290292293177512504501496491493491496Explanation of Published Voltage, Current, and SPL SpecificationsDuring May 2004, UL also changed the way they list the voltage range of a device. All 12V products will be listed between 8 – 17.5V and all 24V products will be listed between 16 – 33V . Those devices are considered “regulat-ed”. Any product that does not operate within these ranges will be listed as a “special application” with its operating voltage specified on the device.Notes1. C urrent draw for strobe-only products is shown in Table 1-A.2. 24VDC 2-wire horn/strobe current draw is shown in Table 1-C.3.C urrent draw for other horn/strobe power supplies can be calculated by adding the strobe current in Table 1-A to the horn current in Table 1-B from the chosen settings.In May 2004 Underwriters Laboratories changed standard UL 1971 to require that operating current measuremments are made using RMS (root mean square) instead of peak or average values. RMS measurements more accurately predict the power consumption of a device since they take into account the entire current draw profile including surge, repetitive surge, and peak values. The published RMS cur-rent is the maximum operating current of that device within its operating voltage range. This current maximum may or may not occur at the endpoints of the voltage range.Similarly, UL tests the audibility of devices in accordance with UL 464 by measuring them across the operating volt-age range to determine the minimum sound pressure level produced at any particular setting.© 2005 System Sensor. The company reserves the right to change product specifications without notice. A05-1025-008•9/05•#1530SpectrAlert DimensionsSpectrAlert Ceiling Mount StrobeSpectrAlert Ceiling Mount Horn/Strobe6.8˝Ordering InformationModel No.DescriptionSC2415Ceiling-mount strobe, 24 volt, 15 candela, red SC2415W Ceiling-mount strobe, 24 volt, 15 candela, white SC241575Ceiling-mount strobe, 24 volt, 15/75 candela, red SC241575W Ceiling-mount strobe, 24 volt, 15/75 candela, white SC2430Ceiling-mount strobe, 24 volt, 30 candela, red SC2430W Ceiling-mount strobe, 24 volt, 30 candela, white SC2475Ceiling-mount strobe, 24 volt, 75 candela, red SC2475W Ceiling-mount strobe, 24 volt, 75 candela, white SC2495Ceiling-mount strobe, 24 volt, 95 candela, red SC2495W Ceiling-mount strobe, 24 volt, 95 candela, white SC24115Ceiling-mount strobe, 24 volt, 115 candela, red SC24115W Ceiling-mount strobe, 24 volt, 115 candela, white SC24177Ceiling-mount strobe, 24 volt, 177 candela, red SC24177W Ceiling-mount strobe, 24 volt, 177 candela, white PC2415Ceiling-mount horn/strobe, 24 volt, 15 candela, red PC2415W Ceiling-mount horn/strobe, 24 volt, 15 candela, white PC241575Ceiling-mount horn/strobe, 24 volt, 15/75 candela, redPC241575W Ceiling-mount horn/strobe, 24 volt, 15/75 candela, whitePC2430Ceiling-mount horn/strobe, 24 volt, 30 candela, red PC2430W Ceiling-mount horn/strobe, 24 volt, 30 candela, white PC2475Ceiling-mount horn/strobe, 24 volt, 75 candela, red PC2475W Ceiling-mount horn/strobe, 24 volt, 75 candela, white PC2495Ceiling-mount horn/strobe, 24 volt, 95 candela, red PC2495W Ceiling-mount horn/strobe, 24 volt, 95 candela, white PC24115Ceiling-mount horn/strobe, 24 volt, 115 candela, red PC24115W Ceiling-mount horn/strobe, 24 volt, 115 candela, whitePC24177Ceiling-mount horn/strobe, 24 volt, 177 candela, red PC24177WCeiling-mount horn/strobe, 24 volt, 177 candela, whiteAccessories MDL Sync•Circuit™ Module, red MDLW Sync•Circuit™ Module, white BBSC Surface-mount back box skirt, red BBSCWSurface-mount back box skirt, whiteSystem Sensor Sales and ServiceSystem Sensor Headquarters 3825 Ohio Avenue St. Charles, IL 60174 Ph: 800/SENSOR2 Fx: 630/377-6495 System Sensor Canada Ph: 905.812.0767 Fx: 905.812.0771System Sensor Europe Ph: 44.1403.276500 Fx: 44.1403.276501System Sensor in China Ph: 86.29.8832.0119 Fx: 86.29.8832.5119System Sensor in Singapore Ph: 65.6273.2230 Fx: 65.6273.2610System Sensor – Far East Ph: 85.22.191.9003 Fx: 85.22.736.6580System Sensor – Australia Ph: 613.54.281.142 Fx: 613.54.281.172System Sensor – IndiaPh: 91.124.237.1770 x.2700Fx: 91.124.237.3118System Sensor – Russia Ph: 70.95.937.7982Fx: 70.95.937.7983Horn Sound Measurements (dBA)Selectable Horn Tones16-33V TemporalLow VolumeElectromechanical 753000 Hz Interrupted75High VolumeElectromechanical 803000 Hz Interrupted81Non-TemporalLow VolumeElectromechanical 793000 Hz Interrupted79High VolumeElectromechanical 843000 Hz Interrupted86。

Dell UltraSharp U2415 用户指南说明书

Dell UltraSharp U2415 用户指南管制型号：U2415注、注意和警告注：“注”表示可以帮助您更好使用显示器的重要信息。

注意：“注意事项”指示如果不遵循说明操作可能会损坏硬件或导致数据丢失。

警告：“警告”表示可能会造成财产损失、人身伤害或死亡。

文中使用的商标：Dell 和DELL 标志是 Dell Inc. 的商标；Microsoft 和Windows 是 Microsoft Corporation 在美国及/或其它国家的商标或注册商标，Intel是 Intel Corporation 在美国及其它国家的注册商标；ATI 是 Advanced Micro Devices, Inc. 的商标；ENERGY STAR 是美国环保署的注册商标。

作为 ENERGY STAR 合作伙伴，Dell Inc. 认定本产品符合 ENERGY STAR 能效方面的标准。

本文中用到的其它商标和品牌名称均属其各自拥有人所有。

Dell Inc. 对于自己之外的商标和品牌名称没有任何专有利益。

2019 - 11Rev. A08目录1关于本显示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5包装物品 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5产品特性 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7识别零部件及控制装置. . . . . . . . . . . . . . . . . . . . . . . . . . . . .8显示器规格 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11即插即用功能 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20通用串行总线 (USB) 接口. . . . . . . . . . . . . . . . . . . . . . . . . .21液晶显示器质量和像素规定. . . . . . . . . . . . . . . . . . . . . . . .22维护指导 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 2设置您的显示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24连接支架 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24连接显示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25设置电缆 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31安装电缆盖 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31拆卸显示器支架 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32卸下电缆盖 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32墙面安装（选配） . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 3操作显示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34打开显示器电源 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34使用前面板控制部件. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34使用屏幕显示（OSD）菜单 . . . . . . . . . . . . . . . . . . . . . . .36设置最大分辨率 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49使用倾斜、旋转和垂直展开功能. . . . . . . . . . . . . . . . . . . .50调节系统的旋转显示设置. . . . . . . . . . . . . . . . . . . . . . . . . .54 4故障排除. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55自检 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55内置诊断功能 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56常见问题 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57产品特定问题 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58通用串行总线 (USB) 特定问题. . . . . . . . . . . . . . . . . . . . . .59移动高清连接 (MHL) 的特定问题 . . . . . . . . . . . . . . . . . . .59目录|35附录. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 FCC 声明（仅针对美国）和其它管制信息 . . . . . . . . . . .60中国能源效率标识 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60联系 Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60设置显示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 4|目录关于本显示器|5关于本显示器包装物品您的显示器配有以下部件。

日本共立电气计器株式会社 2414 2415数字式泄漏电流钳形表使用说明

使用说明数字式泄漏电流钳形表MODEL 2414/2415目录1. 安全警告2. 特点3. 性能规格4. 仪器布局图5. 测量5.1 准备5.2 交流电流测量5.3 使用频率选择开关5.4 交流电压测量6. 更换电池7.可选件1．安全警告说明书包括警告和安全规则，请务必严格遵守以确保操作安全和仪器安全。

因此，使用前，请仔细阅读操作说明。

● 仪表上标志，提醒用户必须参阅说明书中的相关操作说明以确保安全。

警告：表明警告用户在使用时避免触电伤害事故。

小心：提醒用户注意使用以避免仪器损害。

● 为防止触电伤害事故，在以下情况中请勿使用：a. 仪器存在明显损害b. 无法测量c. 在不利情况下长时间存储d. 遭受剧烈运输重压警告● 测量时请勿打开电池盖。

● 更换电池前请取下仪器上的测试线。

● 测量电流时，测试导线请勿插入电压端口。

● 请勿在600V AC/DC线路上进行电流测量，请勿在500V AC/DC线路上进行电压测量，因仪表设计适用于低电压测量。

小心● 请勿进行超量程测量。

● 请勿将仪表暴露在阳光、高温、潮湿、露水环境里。

● 请在使用后将电源开关旋转到OFF位置。

● 仪器必须由有经验的专业人员严格按使用说明书中的指示进行操作。

对于因错误使用仪器而造成的人身事故或仪器损坏，本公司概不负责。

请务必理解并遵守说明书中的安全操作说明。

2．特点● 数字式钳形表设计，用于测量交流泄漏电流、交流电流和交流电压。

● 外部磁场影响极小。

● 具有频率滤波开关，可消除谐波效应。

● 20mA档有0.01mA的最小分辨率。

● 数据保持功能便于在昏暗或难以到达的场所读取数据。

● 大型数字液晶显示屏。

3．性能规格（23±10℃，最大相对湿度75％）精度频率选择开关功能型号量程50.60Hz WIDE20mA 0～19.99 mA 200mA 0～199.9 mA ±1.5％rdg±2dgt±1.5％rdg±2dgt（50/60Hz）±2.0％rdg±5dgt（40～1kHz）2414100A 0～100.0 A±2.0％rdg±5dgt ±2.0％rdg±5dgt（50/60Hz） ±2.5％rdg±5dgt（50～1kHz）20mA 0～19.99 mA 2 A 0～1.999A ±1.5％rdg±2dgt±1.5％rdg±2dgt（50/60Hz）±2.0％rdg±5dgt（40～1kHz）交流电流2415100A 0～100.0 A±2.0％rdg±5dgt ±2.0％rdg±5dgt（50/60Hz） ±2.5％rdg±5dgt（50～1kHz）精度交流电压 24142415500V 0～500V ±1.5％rdg±2dgt（50.60Hz）±2.0％rdg±5dgt（40～1kHz）注意：频率选择开关的设计仅用于交流电流测量，不可用于交流电压量程。

Dell P2418D 用户指南说明书

Dell、EMC以及其他商标是Dell Inc.或其子公司的商标。

其他商标可能是其各自所有者的商标。

2017 – 07Rev. A00注：“注”表示可以帮助您更好使用显示器的重要信息。

注意：“注意”表示如果不按照说明进行操作，可能造成硬件损坏或数据丢失。

警告：“警告”表示可能会造成财产损失、人身伤害或死亡。

目录关于您的显示器 (6)物品清单 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6产品特性 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8识别部件和控制按钮. . . . . . . . . . . . . . . . . . . . . . . . . .9前部概览 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9后部概览 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10侧面概览 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11底部概览 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12显示器规格. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13分辨率规范. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14支持的视频模式 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14预设显示模式 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15电气规范 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16物理特性 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17环境特性 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18电源管理模式 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19针脚分配 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21通用串行总线 (USB) 接口 . . . . . . . . . . . . . . . . . . . . . 23即插即用功能 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25液晶显示器质量和像素政策 . . . . . . . . . . . . . . . . . . . . 25维护指南 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25清洁显示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25│3安装显示器 (26)安装底座 . . . . . . . . . . . . . . . . . . . . . . . . . . . .26连接显示器 (28)整理线缆 . . . . . . . . . . . . . . . . . . . . . . . . . . . .30卸下显示器底座 . . . . . . . . . . . . . . . . . . . . . . . . 31壁挂安装（选购） . . . . . . . . . . . . . . . . . . . . . . .32操作显示器 (33)打开显示器电源 . . . . . . . . . . . . . . . . . . . . . . . .33语言选项 . . . . . . . . . . . . . . . . . . . . . . . . . . . .33使用前面板控制按钮 (34)OSD控制按钮 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35使用屏幕显示(OSD)菜单 (36)使用菜单系统 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 OSD警告消息 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45设置显示器 (47)设置最大分辨率 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47使用倾斜、旋转和纵向展开 . . . . . . . . . . . . . . . . . .48倾斜、转动. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48纵向展开 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48转动显示器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49故障排除 (51)自检 (51)内置诊断 . . . . . . . . . . . . . . . . . . . . . . . . . . . .52常见问题 . . . . . . . . . . . . . . . . . . . . . . . . . . . .534 │产品特有的问题 . . . . . . . . . . . . . . . . . . . . . . . .55通用串行总线 (USB) 特定问题 . . . . . . . . . . . . . . . .55附录 (56)安全说明 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 FCC声明（仅限美国）和其他管制信息 . . . . . . . . . . . . . 56联系Dell . . . . . . . . . . . . . . . . . . . . . . . . . . .57│56 │ 关于您的显示器关于您的显示器物品清单此显示器在出厂时包括下表所示的物品。

2415喇叭规格书

SPECIFICATION FOR APPROV AL承认书Customer （客户）：深鑫Product Name（产品名称）：Micro Dynamic SpeakerLiu Sheng Part No.恒合型号： LS2415R-01薄Specification（规格）： 8Ω1.5WCustomer’s Model No.（客户型号）：Specification No.（规格书编号）：Number of the edition（版本号）：A0CUSTOMER’S APPROVED SIGNATURE客户承认盖章Approved by核准Checked by审核Issued by制成东莞市刘生电子有限公司DONG GUAN LIU SHENG ELECTRONICS. CO.,LTD地址:东莞市塘厦镇田心塘龙西路92号金磊工业区A栋3楼请确认后回传PLEASE REPL Y AFTER APPROV AL东莞市刘生电子有限公司DONG GUAN LIU SHENG ELECTRONICS. CO.,LTD PAGE NO.页码2/8PART . NO.产品型号2415R-01薄A、目录 TABLE OF CONTENTS目录TABLE OF CONTENTS序号NO. 项目ITEM 页码PAGE 封面COVER 1A 目录TABLE OF CONTENTS 2B 修订记录 REVISIONS RECORD 3C 适用范围SCOPE 4D 一般规范GENERAL SPECIFICATIONS 4E 机械特性 MECHANICAL CHARACTERISTICS 5F 信赖性试验 RELIABILITY TEST 6G 环境试验 ENVIRONMENTAL TEST 6H 结构STUCTURE7I 外观尺寸图 APPEARANCE DRAWING 8东莞市刘生电子有限公司DONG GUAN LIU SHENG ELECTRONICS. CO.,LTD页码3/8 PART . NO.产品型号2415R-01薄B、修订记录REVISIONS RECORDREVISION版本DATE日期CHANGE NOTE变更内容DESD.BY修订人APPD.BY确认人无变更则此页不用填写东莞市刘生电子有限公司DONG GUAN LIU SHENG ELECTRONICS. CO.,LTD页码4/8PART . NO.产品型号2415R-01薄C、适用范围SCOPEThis specification applies speaker，2415R-01薄此规格书适用于喇叭，2415R-01薄D、GENERAL SPECIFICATIONS 一般规格NO. Item Symbol Unit Specification Condition1 Dimension 尺寸mm 24×15×3.22Rate/Max Power Rating额定/最大功率W Rate 1.5/Max.1.8Max. Power:IEC-60268-5Filter 60s On/120s Off10 Cycles(Room TEMP.)3AC Impedance交流阻抗ΩOhm 8±15% At1.0KHz 1.0V 4DC Resistance直流阻抗ΩOhm 7.8±10%5Resonance Frequency谐振频率Fo Hz 600±20% At 1.0V6Output S.P.L输出音压S.P.L dB 120±3dB 1.0 KHz7Frequency Rang有效频宽Hz Fo—20KOutput S.P.L ±10dB输出音压±10dB8Max Distortion最大失真% 10% At 1.0KHz 1.5W 9Magnet Material磁铁材质mm Nd-Fe-B10Storage temp贮存温度℃-20~+55℃11Operate temp工作温度℃-20~+55℃12Buzze&Rattle异常音Not be audible at 3.5V sine wave between Fo~4.0KHz 输入 3.5V正弦波Fo到4.0KHz之间无异常音13Protection Regulation环保法规RoHS东莞市刘生电子有限公司DONG GUAN LIU SHENG ELECTRONICS. CO.,LTD页码5/8 PART . NO.产品型号2415R-01薄E、MECHANICAL CHARACTERISTICS机械特性NO Item Test condition Evaluation standard1 Vibration Test振动测试Speaker shall be measured after being appliedvibration of amplitude of 1.5mm with 10 to55Hz band of ibration frequency to each of 3per-pendicular directions for 2 hours.振动周波数10~55Hz，全振幅1.5mm于X，Y，Z 3个方向各2个小时No obstacle to be harmful tomormal operation ;Damages,cracks,rusts anddistortions.Should not be audible at 3.5Vsinewave between FO~4.0kHz测试后无任何障碍防碍正常操作，且在输入3.5V正弦波从Fo到4.0KHz之间无异常音。

R1230D251D-TL资料

2001.Sep. 8s OUTLINEThe R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process.Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a driver transistor. A low ripple, high efficiency step-down DC/DC converter can be easily composed of this IC with only a few kinds of external components, or an inductor and capacitors. (As for R1230D001C/D types, divider resistors are also necessary.) In terms of Output Voltage, it is fixed internally in the R1230DXX1A/B types. While in the R1230D001C/D types, Output Voltage is adjustable with external divider resistors.PWM/VFM alternative circuit is active with Mode Pin of the R1230D Series. Thus, when the load current is small,the operation can be switching into the VFM operation from PWM operation by the logic of MODE pin and the efficiency at small load current can be improved. As protection circuits, Current Limit circuit which limits peak current of Lx at each clock cycle, and Latch type protection circuit which works if the term of Over-current condition keeps on a certain time in PWM mode exist. Latch-type protection circuit works to latch an internal driver with keeping it disable.To release the condition of protection, after disable this IC with a chip enable circuit, enable it again, or restart this IC with power-on or make the supply voltage at UVLO detector threshold level or lower than UVLO.s FEATURESq Built-in Driver ON Resistance • • • • • • • • • • • • • P-channel 0.35Ω, N-channel 0.45Ω (at V IN =3V) q Built-in Soft-start Function (TYP . 1.5ms), and Latch-type Protection Function (Delay Time; TYP . 1.5ms) q Two choices of Oscillator Frequency • • • • • • 500kHz, 800kHzq PWM/VFM alternative with MODE pin • • • • • • PWM operation; MODE pin at “L”,VFM operation; MODE pin at “H”q High Efficiency • • • • • • • • • • • • • • • • • • TYP . 90%q Output Voltage • • • • • • • • •Stepwise Setting with a step of 0.1V in the range of 1.2V ∼ 4.0V(XX1A/B Type)or adjustable in the range of 0.8V to V IN (001C/D Type)q High Accuracy Output Voltage • • • • • • • • • •±2.0%(XX1A/B Type)q Package • • • • • SON8 (Max height 0.9mm, thin type)s APPLICATIONSq Power source for portable equipment.s BLOCK DIAGRAMq R1230DXX1A/BVAGNDV OUTActiveqR1230D001C/DV AGNDV FBCEActives SELECTION GUIDEIn the R1230D Series, the output voltage, the oscillator frequency, and the taping type for the ICs can be selected at the user’s request.The selection can be made by designating the part number as shown below;R1230DXXXX-XX↑ ↑ ↑ ↑a b c dCode ContentsaSetting Output Voltage(V OUT ):Stepwise setting with a step of 0.1V in the range of 1.2V to 4.0V is possible for A/B version.“00” is for Output Voltage Adjustable C/D version b 1 : fixedcDesignation of Optional Function A : 500kHz, Fixed Output Voltage B : 800 kHz, Fixed Output VoltageC : 500kHz, Adjustable Output VoltageD : 800kHz, Adjustable Output VoltagedDesignation of Taping Type; Ex. :TR,TL(refer to Taping Specification)”TR” is prescribed as a standard.s PIN CONFIGURATIONq SON-8*Attention : Tab suspension leads in theparts have GND level. (They are connected tothe reverse side of this IC.) Do not connect to other wires or land patterns.Unit : mms PIN DESCRIPTIONPin No.Symbol Description1V IN Voltage Supply Pin2PGND Ground Pin3V DD Voltage Supply Pin4CE Chip Enable Pin (active with “H”)5V OUT/V FB Output/Feedback Pin6MODE Mode changer Pin (PWM mode at “L”, VFM mode at “H”.)7AGND Ground Pin8Lx Lx Pins ABSOLUTE MAXIMUM RATINGS(AGND=PGND=0V) Symbol Item Rating UnitV IN V IN Supply Voltage 6.5VV DD V DD Pin Voltage 6.5VV LX Lx Pin Voltage-0.3∼V IN+0.3VV CE CE Pin Input Voltage-0.3∼V IN+0.3VV MODE MODE Pin Input Voltage-0.3∼V IN+0.3VV FB V FB Pin Input Voltage-0.3∼V IN+0.3VI LX L X Pin Output Current-0.8AP D Power Dissipation250mWTopt Operating Temperature Range-40∼+85°CTstg Storage Temperature Range-55∼+125°Cs ELECTRICAL CHARACTERISTICSq R1230D**1A/B (Topt=25°C) Symbol Item Conditions MIN.TYP.MAX.Unit V IN Operating Input Voltage 2.4 5.5VV OUT Step-down Output Voltage V IN=V CE=V SET+1.5V, V MODE=0V,I OUT=10mA TYP.×0.980V SET TYP.×1.020V∆V OUT/∆TStep-down Output VoltageTemperature Coefficient-40°C ≤ Topt ≤ 85°C±150ppm/°Cfosc Oscillator Frequency(xx1A)V IN=V CE=V SET+1.5V425500575kHz fosc Oscillator Frequency(xx1B)V IN=V CE=V SET+1.5V680800920kHzI DD Supply Current(xx1A)V IN=V CE=V SET+1.5V,V OUT=V MODE=0V230300µAI DD Supply Current(xx1B)V IN=V CE=V SET+1.5V,V OUT=V MODE=0V250350µAI stb Standby Current V IN=5.5V, V CE=V OUT=0V05µA R ONP ON Resistance ofPch TransistorV IN=5.0V0.200.350.60ΩR ONN ON Resistance ofNch TransistorV IN=5.0V0.200.450.70ΩI LX leak Lx Leakage Current V IN=5.5V, V CE=0V, V LX=0V/5.5V-0.10.00.1µA I VOUT V OUT Leakage Current V IN=5.5V, V CE=0V, V LX=0V/5.5V-0.10.00.1µAI CE CE Input Current V IN=5.5V, V MODE=0V, V CE=5.5V/0V-0.10.00.1µA V CEH CE "H" Input Voltage V IN=5.5V, V OUT=0V 1.5V V CEL CE "L" Input Voltage V IN=2.4V, V OUT=0V0.3V Maxdty Oscillator Maximum Duty Cycle V MODE=0V100% V LX Lx Limit Voltage V MODE= V OUT=0V, V IN=V CE=3.0V V IN-0.15V IN-0.35V IN-0.55V T start Delay Time by Soft-Start function at no load, V IN=V CE=V SET+1.5V0.5 1.5 2.5ms T prot Delay Time for protection circuit V IN=V CE=V SET+1.5V, V MODE=0V0.5 1.5 2.5ms V UVLO1UVLO Threshold Voltage V IN=V CE=2.5V->1.5V, V OUT=0V 1.8 2.1 2.2V V UVLO2UVLO Released Voltage V IN=V CE=1.5V->2.5V, V OUT=0V 1.9 2.2 2.3V I MODE MODE Pin Input Current V IN=5.5V, V CE=0V, V MODE=5.5V/0V-0.10.1µA V MODEH MODE ”H” Input Voltage V IN=V CE=5.5V, V OUT=0V 1.5V V MODEL MODE ”L” Input Voltage V IN=V CE=2.4V, V OUT=0V0.3V VFMdty VFM Duty Cycle V IN=V CE= V MODE=2.4V, V OUT=0V556585%q R1230D001C/D (Topt=25°C) Symbol Item Conditions MIN.TYP.MAX.Unit V IN Operating Input Voltage 2.4 5.5V V FB Feedback Voltage V IN=V CE=V SET+1.5V, V MODE=0V,I OUT=10mA0.7760.8000.824V∆V FB/∆T Feedback VoltageTemperature Coefficient-40°C ≤ Topt ≤ 85°C±150ppm/°Cfosc Oscillator Frequency(xx1C)V IN=V CE=V SET+1.5V425500575kHz fosc Oscillator Frequency(xx1D)V IN=V CE=V SET+1.5V680800920kHz I DD Supply Current(xx1C)V IN=V CE=5.5V, V FB=V MODE=0V230300µA I DD Supply Current(xx1D)V IN=V CE=5.5V, V FB=V MODE=0V250350µA I stb Standby Current V IN=5.5V, V CE=V FB=0V05µA R ONP ON Resistance ofPch TransistorV IN=5.0V0.200.350.60ΩR ONN ON Resistance ofNch TransistorV IN=5.0V0.200.450.70ΩI LX leak Lx Leakage Current V IN=5.5V, V CE=0V, V LX=0V/5.5V-0.10.00.1µA I VFB V FB Leakage Current V IN=5.5V, V CE=0V, V FB=0V/5.5V-0.10.00.1µA I CE CE Input Current V IN=5.5V, V MODE=0V, V CE=5.5V/0V-0.10.00.1µA V CEH CE "H" Input Voltage V IN=5.5V, V FB=0V 1.5V V CEL CE "L" Input Voltage V IN=2.4V, V FB=0V0.3V Maxdty Oscillator Maximum Duty Cycle V MODE=0V100%V LX Lx Limit Voltage V IN=V CE=3.0V, V MODE=0V, V FB=0V V IN-0.15V IN-0.35V IN-0.55VT start Delay Time by Soft-Start function at no load, V IN=V CE=V SET+1.5V0.5 1.5 2.5ms T prot Delay Time for protection circuit V IN=V CE=3.6V, V MODE=0V 1.5ms V UVLO1UVLO Threshold Voltage V IN=V CE=2.5V->1.5V, V FB=0V 1.8 2.1 2.2V V UVLO2UVLO Released Voltage V IN=V CE=1.5V->2.5V, V FB=0V 1.9 2.2 2.3V I MODE MODE Pin Input Current V IN=5.5V, V MODE=5.5V/0V, V CE=0V-0.10.1µA V MODE MODE ”H” Input Voltage V IN=V CE=5.5V, V FB=0V 1.5V V MODEL MODE ”L” Input Voltage V IN=V CE=2.4V, V FB=0V0.3V VFMdty VFM Duty Cycle V IN=V CE=V MODE=2.4V, V FB=0V556585%s TEST CIRCUITSTest Circuit for Input Current and Leakage Current Test Circuit for Input Voltage and UVLO voltageTest Circuit for Output Voltage, Oscillator Frequency, Soft-Starting TimeTest Circuit for Supply Current and Standby Current Test Circuit for ON resistance of Lx, Limit Voltage, DelayTime of Protection CircuitThe bypass capacitor between Power Supply and GND is Ceramic capacitor 10µF.s TYPICAL APPLICATION AND TECHNICAL NOTES1) Fixed Output Voltage TypeL : 10µH LQH3C100K54(Murata)C OUT : 10µF ECSTOJX106R(Panasonic)C IN: 10µF C3216JB0J106M(TDK)L:10µH LQH3C100K54 (Murata)C OUT:10µF ECSTOJX106R (Panasonic)C IN:10µF C3216JB0J106M (TDK)Standard value of the sum of Divider Resistors, R1+R2 is as much as 100kΩ.Cb value for phase compensation depends on values of L, C, and R1. Refer to the technical notes.If a ceramic capacitor is used as an output capacitor, add 0.2Ω or more resistance to compensate the ESR of the capacitor.When you use these ICs, consider the following issues;q Input same voltage into Power Supply pins, V IN and V DD. Set the same level as AGND and PGND.q When you control the CE pin and MODE pin by another power supply, do not make its "H" level more than the voltage level of V IN /V DD pin.q Set external components such as an inductor, C IN, C OUT as close as possible to the IC, in particular, minimize the wiring to V IN pin and PGND pin.q At stand by mode, (CE=”L”), the Lx output is Hi-Z, or both P-channel transistor and N-channel transistor of Lx pin turn off.q Use an external capacitor C OUT with a capacity of 10µF or more, and with good high frequency characteristics such as tantalum capacitors.q At VFM mode, (MODE=”H”), Latch protection circuit does not operate.q If the mode is switched over into PWM mode from VFM mode during the operation, change the mode at light load current. If the load current us large, output voltage may decline.q Reinforce the V IN, PGND, and V OUT lines sufficiently. Large switching current may flow in these lines. If the impedance of V IN and PGND lines is too large, the internal voltage level in this IC may shift caused by the switching current, and the operation might be unstable.✰ The performance of power source circuits using these ICs extremely depends upon the peripheral circuits.Pay attention in the selection of the peripheral circuits. In particular, design the peripheral circuits in a way that the values such as voltage, current, and power of each component, PCB patterns and the IC do not exceed their respected rated values.s OPERATION of step-down DC/DC converter and Output CurrentThe step-down DC/DC converter charges energy in the inductor when Lx transistor is ON, and discharges the energy from the inductor when Lx transistor is OFF and controls with less energy loss, so that a lower output voltage than the input voltage is obtained. The operation will be explained with reference to the following diagrams:<Current through L>Step 1:P-channel Tr. turns on and current IL (=i1) flows, and energy is charged into CL. At this moment, IL increases from ILmin(=0) to reach ILmax in proportion to the on-time period(ton) of P-channel Tr.Step 2:When P-channel Tr. turns off, Synchronous rectifier N-channel Tr. turns on in order that L maintains IL at ILmax, and current IL (=i2) flows.Step 3:IL (=i2) decreases gradually and reaches IL=ILmin=0 after a time period of topen, and N-channel Tr. turns off. Provided that in the continuous mode, next cycle starts before IL becomes to 0 because toff time is not enough. In this case, IL value increases from this ILmin(>0).In the case of PWM control system, the output voltage is maintained by controlling the on-time period (ton), with the oscillator frequency (fosc) being maintained constant.q Discontinuous Conduction Mode and Continuous Conduction ModeThe maximum value (ILmax) and the minimum value (ILmin) of the current flowing through the inductor are the same as those when P-channel Tr. turns on and off.The difference between ILmax and ILmin, which is represented by ∆I;∆I = ILmax – ILmin = V OUT × topen / L = (V IN-V OUT)×ton/L⋅⋅⋅Equation 1Wherein T=1/fosc=ton+toffduty (%)=ton/T×100=ton×fosc×100topen ≤ toffIn Equation 1, V OUT×topen/L and (V IN-V OUT)×ton/L respectively show the change of the current at “ON”, and the change of the current at “OFF”.When the output current (I OUT) is relatively small, topen<toff as illustrated in the above diagram. In this case, the energy is charged in the inductor during the time period of ton and is discharged in its entirely during the time period of toff, therefore ILmin becomes to zero (ILmin=0). When Iout is gradually increased, eventually, topen becomes to toff (topen=toff), and when I OUT is further increased, ILmin becomes larger than zero (ILmin>0). The former mode is referred to as the discontinuous mode and the latter mode is referred to as continuous mode.In the continuous mode, when Equation 1 is solved for ton and assumed that the solution is tonc,tonc =T×V IN/V OUT⋅⋅⋅ Equation 2When ton<tonc, the mode is the discontinuous mode, and when ton=tonc, the mode is the continuous mode.s OUTPUT CURRENT AND SELECTION OF EXTERNAL COMPONENTSWhen P-channel Tr. of Lx is ON:(Wherein, Ripple Current P-P value is described as I RP, ON resistance of P-channel Tr. and N-channel Tr. of Lx are respectively described as Ronp and Ronn, and the DC resistor of the inductor is described as R L.) V IN=V OUT+(Ronp+R L)×I OUT+L×I RP/ton⋅⋅⋅Equation 3When P-channel Tr. of Lx is “OFF”(N-channel Tr. is “ON”):L×I RP/toff = R L×I OUT + V OUT + Ronn×I OUT⋅⋅⋅Equation 4Put Equation 4 to Equation 3 and solve for ON duty of P-channel transistor, ton/(toff+ton)=D ON,D ON=(V OUT-Ronn×I OUT+R L×I OUT)/(V IN+ Ronn×I OUT -Ronp×I OUT)⋅⋅⋅Equation 5Ripple Current is as follows;I RP=(V IN-V OUT-Ronp×I OUT-R L×I OUT)×D ON/fosc/L…Equation 6wherein, peak current that flows through L, and Lx Tr. is as follows;ILmax=I OUT+I RP/2…Equation 7Consider ILmax, condition of input and output and select external components.5The above explanation is directed to the calculation in an ideal case in continuous mode.s How to Adjust Output Voltage and about Phase CompensationAs for Adjustable Output type, feedback pin (V FB) voltage is controlled to maintain 0.8V.Output Voltage, V OUT is as following equation;V OUT: R1+R2=VFB: R2V OUT=V FB×(R1+R2)/R2Thus, with changing the value of R1 and R2, output voltage can be set in the specified range.In the DC/DC converter, with the load current and external components such as L and C, phase might be behind 180 degree. In this case, the phase margin of the system will be less and stability will be worse. To prevent this, phase margin should be secured with proceeding the phase. A zero is formed with R1, R2, and Cb.Fpole∼1/2π√LC OUT≅Fzero∼1/(2π×(R1+R2)×Cb)Considering external components, LC, set the appropriate value of R1+R2 and Cb.Rb is effective for reducing the noise on V FB, therefore, add Rb so that R1+Rb=30kΩ.When the R1≥30kΩ, additional Rb is not necessary, so it should be wired to V FB directly.s External Components1. InductorSelect an inductor that peak current does not exceed ILmax. If larger current than allowable current flows, magnetic saturation occurs and make transform efficiency worse.Supposed that the load current is at the same, the smaller value of L is used, the larger the ripple current is.Provided that the allowable current is large in that case and DC current is small, therefore, for large output current, efficiency is better than using an inductor with a large value of L and vice versa.2. CapacitorAs for C IN, use a capacitor with low ESR (Equivalent Series Resistance) Ceramic type of a capacity at least 10µF for stable operation.C OUT can reduce ripple of Output Voltage, therefore as much as 10µF tantalum type is recommended.s TIMING CHARTThe timing chart as shown above describes the waveforms starting from the IC is enabled with CE and latched with protection. During the soft-start time, until the level is rising up to the internal soft-start set voltage, the duty cycle of Lx is gradually wider and wider to prevent the over-shoot of the voltage. During the term, the output of amplifier is “H”, then after the output voltage reaches the set output voltage, they are balanced with the stable state. Herein, if the output pin would be short circuit, the output of amplifier would become “H” again, and the condition would continue for 1.5ms (TYP.), latch circuit would work and the output of Lx would be latched with “OFF”. (Output =“High-Z”)If the output short is released before the latch circuit works (within 1.5ms after output shorted), the output of amplifier is balanced in the stable state again.Once the IC is latched, to release the protection, input “L” with CE pin, or make the supply voltage at UVLO level or less.s TYPICAL CHARACTERISTICS1) Output Voltage vs. Output Current2) Efficiency vs. Output Current3) Ripple Voltage vs. Output Current4) Output Waveform5) Output Voltage vs. Input Voltage6) Output Voltage vs. TemperatureOscillator Frequency vs. Temperature7)8) Supply Current vs. Temperature9) Soft-start time vs. Temperature10) Delay Time for protection vs. Temperature11) UVLO Threshold/Released Voltage vs. Temperature12) CE Pin Input Voltage vs. Temperature13) Mode Pin Input Voltage vs. Temperature14) Duty Cycle at VFM Mode vs. Temperature15) Lx Transistor On Resistance vs. Temperature16) Limit Voltage vs. Temperature17) Load Transient Response18) Turn-on Waveform。

彩显典型视频输出放大电路资料浏览文章维修技术维修吧

彩显典型视频输出放大电路资料浏览文章维修技术维修吧
1．LM2402/2403/2405/2406/2407/2409/2412／2413／2415构成的视频输出电路
它们由三个对称功率放大器组成，其引脚功能和电压数据如表1所列。

注：LM2402、LM2412带宽为200MHz，LM2403带宽为160MHz,LM2405带宽为130MHz、LM2406带宽为80MHz，LM2407带宽为100MHz，LM2409带宽为75MHz，LM2413带宽为180MHz．LM2415带宽为135MHz。

维修中，可用带宽大的芯片代换带宽小的芯片。

电压数据是在飞利浦CM2600机芯未联机时测得，所以信号输入端和信号输出端电压是跳变的。

2．LM2427T构成的视频输出电路
其引脚功能如表2所示。

电原理见图1(惠普D2818A彩显的视频输出电路)。

3．LM2435/2437/2438／2439构成的视频输出电路
它们内部构成和引脚功能相同，它们引脚功能和电压数据如表3所示。

图2是LM2439应用在厦华17YAK彩显电路图。

4．LM2453构成的视频输出电路
LM2453是一种具有钳位及G1电压输出功能的R/G/B功率放大器。

钳位电路用于采用交流耦合输出方式时进行直流恢复，而消隐电路可输出场消隐信号到显像管栅极(G1)，抑制场回扫线。

它的引脚功能如表4所示。

转载请注明转自“维修吧-”
5．TDA9511构成的视频输出电路
TDA9511是一种带宽为40MHz的直流耦合输出型单通道视频输出放大器。

它的引脚功能和电压数据如表5所示。

图3是TDA9511典型应用电路。

光驱参数术语

dvd r和dvd rw分别什么意思？DVD-RWDVD刻录标准之一。

由Pioneer所主导，DVD-RW产品定位在消费类电子产品，主要提供类似过去VHS录像带的功能，可供消费者进行高画质影音多媒体资料的记录。

然而，DVD-RW的功能也扩充到了电脑领域，苹果和康柏电脑就将DVD-RW作为大容量储存装置。

DVD-RW的优点是兼容性好，而且能够以DVD视频格式来保存数据，因此可以在影碟机上进行播放。

但是，它一个很大的缺点就是格式化需要花费一个半小时的时间。

另外，DVD-RW提供了两种记录模式：一种称为视频录制模式；另一种叫做DVD视频模式。

前一种模式功能较丰富，但与DVD影碟机不兼容。

用户需要在这两种格式中做选择。

由于使用不甚方便，盘片在一些DVD光驱有兼容性问题，DVD-RW被认为不太适合普通的商业用途。

DVD-RAMDVD刻录机标准之一。

松下、日立等公司支持的DVD-RAM是推出实际产品的第一个标准。

但是，DVD-RAM并不是一个具有通用价值的产品，DVD-RAM盘片不能在多数的现有DVD影碟机和驱动器中播放。

DVD-RAM的优点是格式化时间很短，不足1分钟，格式化好的光盘不需特殊的软件就可进行写入和擦写，也就是说可以像软盘一样轻松使用，而且价格便宜，但只供有相关驱动器的电脑专用。

DVD+RWDVD刻录标准之一。

DVD+RW的规格是由7C（PHILIPS/Sony/YAMAHA/Mitsubishi Chemical-Verbatim/Ricoh/HP/Thomson）所主导，并不属于DVD-Forum的正式规格。

DVD+RW产品同时定位在消费类电子产品及电脑储存用。

DVD+RW具有DVD-RAM光驱的易用性，而且提高了DVD-RW光驱的兼容性。

虽然DVD+RW的格式化时间需要一个小时左右，但是由于从中途开始可以在后台进行格式化，因此一分钟以后就可以开始刻录数据，是实用速度最快的DVD刻录机。

r是只能刻写一次的，rw是可以多次读写的。