AP8022资料

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液晶常用电源管理芯片

1200AP40 1200AP60、1203P60200D6、203D6 DAP8A 可互代203D6/1203P6 DAP8A2S0680 2S08803S0680 3S08805S0765 DP104、DP7048S0765C DP704加24V得稳压二极管ACT4060 ZA3020LV/MP1410/MP9141ACT4065 ZA3020/MP1580ACT4070 ZA3030/MP1583/MP1591MP1593/MP1430ACT6311 LT1937ACT6906 LTC3406/A T1366/MP2104AMC2576 LM2576AMC2596 LM2596AMC3100 LTC3406/AT1366/MP2104AMC34063A AMC34063AMC7660 AJC1564AP8012 VIPer12AAP8022 VIPer22ADAP02 可用SG5841 /SG6841代换DAP02ALSZ SG6841DAP02ALSZ SG6841DAP7A、DP8A 203D6、1203P6DH321、DL321 Q100、DM0265RDM0465R DM/CM0565RDM0465R/DM0565R 用cm0565r代换(取掉4脚得稳压二极管) DP104 5S0765DP704 5S0765DP706 5S0765DP804 DP904FAN7601 LAF0001LD7552 可用SG6841代(改4脚电阻)LD7575PS 203D6改1脚100K电阻为24KOB2268CP OB2269CPOB2268CP SG6841改4脚100K电阻为2047KOCP1451 TL1451/BA9741/SP9741/AP200OCP2150 LTC3406/AT1366/MP2104OCP2160 LTC3407OCP2576 LM2576OCP3601 MB3800OCP5001 TL5001OMC2596 LM2596/AP1501PT1301 RJ9266PT4101 AJC1648/MP3202PT4102 LT1937/AJC1896/AP1522/RJ9271/MP1540SG5841SZ SG6841DZ/SG6841DSM9621 RJ9621/AJC1642SP1937 LT1937/AJC1896/AP1522/RJ9271/MP1540STRG5643D STRG5653D、STRG8653DTEA1507 TEA1533TEA1530 TEA1532对应引脚功能接入THX202H TFC719THX203H TFC718STOP246Y TOP247YV A7910 MAX1674/75 L6920 AJC1610VIPer12A VIPer22A[audio01]ICE2A165(1A/650V、31W);ICE2A265(2A/650V、52W);ICE2B0565(0、5A/650V、23W):ICE2B165(1A/650V、31W);ICE2B265(2A/650V、52W);ICE2A180(1A/800V、29W);ICE2A280(2A/800、50W)、KA5H0365R, KA5M0365R, KA5L0365R, KA5M0365RN# u) t! u1 W1 B) R, PKA5L0365RN, KA5H0380R, KA5M0380R, KA5L0380R1、KA5Q1265RF/RT(大小两种体积)、KA5Q0765、FSCQ1265RT、KACQ1265RF、FSCQ0765RT、FSCQ1565Q这就是一类得,这些型号得引脚功能全都一样,只就是输出功率不一样。

2020年以太网帧格式EthernetⅡ和ETHERNET8023IEEE8022SAP和SNAP的区别精品版

EthernetⅡ/ETHERNET 802.3 IEEE802.2.SAP/SNAP的区别1.Ethernet V1：这是最原始的一种格式，是由Xerox PARC提出的3Mbps CSMA/CD 以太网标准的封装格式，后来在1980年由DEC，Intel和Xerox标准化形成Ethernet V1标准；2.Ethernet V2(ARPA)：这是最常见的一种以太网帧格式，也是今天以太网的事实标准，由DEC，Intel 和Xerox在1982年公布其标准，主要更改了Ethernet V1的电气特性和物理接口，在帧格式上并无变化；Ethernet V2出现后迅速取代Ethernet V1成为以太网事实标准；Ethernet V2帧头结构为6bytes的源地址+6bytes的目标地址+2Bytes的协议类型字段+数据。

常见协议类型如下：0800 IP0806 ARP8137 Novell IPX809b Apple Talk如果协议类型字段取值为0000-05dc(十进制的0-1500)，则该帧就不是Ethernet V2(ARPA)类型了，而是下面讲到的三种802.3帧类型之一；Ethernet可以支持TCP/IP，Novell IPX/SPX，Apple Talk Phase I等协议；RFC 894定义了IP报文在Ethernet V2上的封装格式；Ethernet_II中所包含的字段：在每种格式的以太网帧的开始处都有64比特（8字节）的前导字符，如图所示。

其中，前7个字节称为前同步码（Preamble），内容是16进制数0xAA，最后1字节为帧起始标志符0xAB，它标识着以太网帧的开始。

前导字符的作用是使接收节点进行同步并做好接收数据帧的准备。

——PR：同步位，用于收发双方的时钟同步，同时也指明了传输的速率（10M和100M的时钟频率不一样，所以100M网卡可以兼容10M网卡），是56位的二进制数101010101010.....——SD: 分隔位,表示下面跟着的是真正的数据,而不是同步时钟,为8位的10101011,跟同步位不同的是最后2位是11而不是10.——DA:目的地址,以太网的地址为48位(6个字节)二进制地址,表明该帧传输给哪个网卡.如果为FFFFFFFFFFFF,则是广播地址,广播地址的数据可以被任何网卡接收到.——SA:源地址,48位,表明该帧的数据是哪个网卡发的,即发送端的网卡地址,同样是6个字节.----TYPE：类型字段，表明该帧的数据是什么类型的数据，不同的协议的类型字段不同。

AP8022构成的ABS机开关电源原理与检修

AP8022构成的ABS机开关电源原理与检修作者：郑秀峰来源：《卫星电视与宽带多媒体》2011年第21期市面上流行的山寨中九接收机品牌众多，采用的开关电源设计方案也不尽相同，有分立元件构成的，也有采用五花八门电源管理芯片构成的，集信V4黑盒子中九专用接收机开关电源采用了小功率电源芯片AP8022。

电源芯片AP8022内部集成有电流型PWM（脉冲宽度调制）控制器、固定频率为55KHz的振荡器和击穿电压为730V的高压功率场效应管。

该电源芯片内部还集成有过热、过压、过流保护电路和用于电源启动的高压电流源。

以AP8022为核心元件构成的开关电源具有输入电压适应范围宽（85-265V）、电源转换效率高、外围电路简捷、成本低廉等特点。

AP8022引脚功能为：①、②脚内置场效应开关管源极，在电路板上接地端，③脚反馈输入端，④脚供电端，⑤-⑧脚接内部场效应开关管漏极。

附图为集信V4中九专用接收机开关电源电路原理图。

工作原理1.启动与振荡开机后，220V交流市电经D1-D4桥式整流、C5、C2滤波，得到的约300V的直流电压，经过开关变压器TB1的初级①-②绕组直接送至IC1（AP8022）的⑤-⑧脚，IC1内部的启动电路、振荡电路得电后开始工作。

振荡电路产生的振荡信号通过驱动电路使IC1内部场效应管进入开关状态，开关变压器TB1初级绕组①-②上产生感应电压，由于绕组间的电磁耦合，开关变压器TB1反馈绕组③-④产生的感应电压经D6整流、R10限流、C4滤波后得到的直流电压加到AP8022④脚，为AP8022内部电路提供正常工作所需的电压，维持开关电源的稳定工作。

电源正常工作后，开关变压器次级各绕组产生高频脉冲电压分别经过整流、滤波后输出不同的电压，为主板各单元电路提供工作电源。

2.稳压控制集信V4中九专用接收机开关电源稳压控制电路主要由光电耦合器UP1（817C）和可调三端稳压器IC2（TL431）等元件组成，稳压取样电压取自3.3V电源，经R5、R4分压加到TL431A控制端R。

液晶电源管理芯片代换大全

AMC3100-LTC3406/AT1366/直接代换
MP2104 OCP2150-LTC3406/直接代换
AT1366/MP2104 直接代换
ACT6906-LTC3406/AT1366/直接代换
MP2104 OCP2160-LTC3407直接代换
ACT4065-ZA3020/MP1580 直接代换
1200AP40 1200AP60、1203P60
200D6、203D6 DAP8A 可互代
203D6/1203P6 DAP8A
2S0680 2S0880
3S0680 3S0880
5S0765 DP104、DP704
8S0765C DP704加24V的稳压二极管
ACT4060 ZA3020LV/MP1410/MP9141
电源IC(ZSTR-G5643D G5653D G8653D 直接代换
203D6/1203P6和DAP8A 直接代换 DM0465R。DM0565R用cm0565r代换成功（取掉4脚的稳压二极管）
LD7575PS 可用203D6代（没试过，只是1脚的对地电阻不同，改了就可了）
LD7552可用SG6841代（不过要改4脚电阻,)
STR G5653直接用STR G8656代换试验成功！
. FSCQ1565>1265>0765>0565
FS5Q1565>1265>0765>0565
5Q系列供电为20V,CQ系列供电为18V,5Q代换CQ系列时需拆除那个稳压二极管，短接10欧姆电阻！
STRG8656>8654>5653
OCP2160 LTC3407
OCP2576 LM2576

AOP802中文资料

SymbolTyp Max 30406685R θJL 2535Maximum Junction-to-Ambient A Steady-State °C/W Maximum Junction-to-Lead CSteady-State°C/WThermal Characteristics ParameterUnits Maximum Junction-to-Ambient A t ≤ 10s R θJA °C/W AOP802SymbolMin TypMaxUnits BV DSS 60V 1T J =55°C5I GSS 100nA V GS(th)1 2.13V I D(ON)40A 17.825T J =125°C32.24219.730m Ωg FS 30S V SD 0.741V I S4A C iss 19202300pF C oss 155pF C rss 116pF R g0.650.8ΩQ g (10V)47.668nC Q g (4.5V)24.230nC Q gs 6nC Q gd 14.4nC t D(on)7.4ns t r 5.1ns t D(off)28.2ns t f 5.5ns t rr 3441ns Q rr46nCTHIS PRODUCT HAS BEEN DESIGNED AND QUALIFIED FOR THE CONSUMER MARKET. APPLICATIONS OR USES AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS ARE NOT AUTHORIZED. AOS DOES NOT ASSUME ANY LIABILITY ARISING OUT OF SUCH APPLICATIONS OR USES OF ITS PRODUCTS. AOS RESERVES THE RIGHT TO IMPROVE PRODUCT DESIGN,FUNCTIONS AND RELIABILITY WITHOUT NOTICE.Maximum Body-Diode Continuous CurrentInput Capacitance Output Capacitance Turn-On DelayTime DYNAMIC PARAMETERS V GS =10V, V DS =30V, I D =7.9ATotal Gate Charge Gate Drain Charge V GS =0V, V DS =15V, f=1MHz SWITCHING PARAMETERS Turn-On Rise Time Turn-Off DelayTime V GS =10V, V DS =30V, R L =3.9Ω, R GEN =3ΩTurn-Off Fall TimeTotal Gate Charge Gate Source Charge Gate resistanceV GS =0V, V DS =0V, f=1MHzm ΩV GS =4.5V, I D =7.1AI S =1A,V GS =0V V DS =5V, I D =7.9AR DS(ON)Static Drain-Source On-ResistanceForward TransconductanceDiode Forward VoltageI DSS µA Gate Threshold Voltage V DS =V GS I D =250µA V DS =48V, V GS =0VV DS =0V, V GS = ±20V Zero Gate Voltage Drain Current Gate-Body leakage current Electrical Characteristics (T J =25°C unless otherwise noted)STATIC PARAMETERS ParameterConditions Body Diode Reverse Recovery Time Body Diode Reverse Recovery ChargeI F =7.9A, dI/dt=100A/µsDrain-Source Breakdown Voltage On state drain currentI D =250µA, V GS =0V V GS =10V, V DS =5V V GS =10V, I D =7.9AReverse Transfer Capacitance I F =7.9A, dI/dt=100A/µs A: The value of R θJA is measured with the device mounted on 1in 2FR-4 board with 2oz. Copper, in a still air environment with T A =25°C. The value in any given application depends on the user's specific board design. The current rating is based on the t ≤ 10s thermal resistance rating.B: Repetitive rating, pulse width limited by junction temperature.C. The R θJA is the sum of the thermal impedence from junction to lead R θJL and lead to ambient.D. The static characteristics in Figures 1 to 6 are obtained using 80 µs pulses, duty cycle 0.5% max.E. These tests are performed with the device mounted on 1 in 2FR-4 board with 2oz. Copper, in a still air environment with T A =25°C. The SOA curve provides a single pulse rating. Rev3: August 2005。

LCDHome论坛_电源模块代换大全

液晶电源管理芯片代换大全1200AP40 1200AP60、1203P60200D6、203D6 DAP8A 可互代203D6/1203P6 DAP8A2S0680 2S08803S0680 3S08805S0765 DP104、DP7048S0765C DP704加24V的稳压二极管ACT4060 ZA3020LV/MP1410/MP9141ACT4065 ZA3020/MP1580ACT4070 ZA3030/MP1583/MP1591MP1593/MP1430ACT6311 LT1937ACT6906 LTC3406/AT1366/MP2104AMC2576 LM2576AMC2596 LM2596AMC3100 LTC3406/AT1366/MP2104AMC34063A AMC34063AMC7660 AJC1564AP8012 VIPer12AAP8022 VIPer22ADAP02 可用SG5841 /SG6841代换DAP02ALSZ SG6841DAP02ALSZ SG6841DAP7A、DP8A 203D6、1203P6DH321、DL321 Q100、DM0265RDM0465R DM/CM0565RDM0465R/DM0565R 用cm0565r代换（取掉4脚的稳压二极管）DP104 5S0765DP704 5S0765DP706 5S0765DP804 DP904FAN7601 LAF0001LD7552 可用SG6841代（改4脚电阻）LD7575PS 203D6改1脚100K电阻为24KOB2268CP OB2269CPOB2268CP SG6841改4脚100K电阻为20-47KOCP1451 TL1451/BA9741/SP9741/AP200OCP2150 LTC3406/AT1366/MP2104OCP2160 LTC3407坂面精通家电维修中心电话0598-OCP2576 LM2576OCP3601 MB3800OCP5001 TL5001OMC2596 LM2596/AP1501PT1301 RJ9266PT4101 AJC1648/MP3202PT4102 LT1937/AJC1896/AP1522/RJ9271/MP1540SG5841SZ SG6841DZ/SG6841DSM9621 RJ9621/AJC1642SP1937 LT1937/AJC1896/AP1522/RJ9271/MP1540STR-G5643D STR-G5653D、STR-G8653DTEA1507 TEA1533TEA1530 TEA1532对应引脚功能接入THX202H TFC719THX203H TFC718STOP246Y TOP247YVA7910 MAX1674/75 L6920 AJC1610VIPer12A VIPer22A[audio01]ICE2A165(1A/650V.31W);ICE2A265(2A/650V.52W);ICE2B0565(0.5A/650V.23W):ICE2B165(1A/650V.31W);ICE2B265(2A/650V.52W);ICE2A180(1A/800V.29W);ICE2A280(2A/800.50W).KA5H0365R, KA5M0365R, KA5L0365R, KA5M0365RN# u) t! u1 W1 B) R, PKA5L0365RN, KA5H0380R, KA5M0380R, KA5L0380R1、KA5Q1265RF/RT（大小两种体积）、KA5Q0765、FSCQ1265RT、KACQ1265RF、FSCQ0765RT、FSCQ1565Q这是一类的，这些型号的引脚功能全都一样，只是输出功率不一样。

DVD机电源IC_DL321_及相关资料

电源IC DL321 代换:维修中九电源，我觉得以下配件必备：1：16V1000UF 电容。

很多机器发现不开机，或电源输出低、开机正常，接75 欧线反复启动、或收台少等疑难故障，换掉它，可以起到事功半倍的效果。

2：IN4007 二极管。

3：TL431.4:光耦。

5：10UF400V 电容。

6：FR309 二极管。

7：2.2 欧功率电阻。

8：各种8 脚电源IC。

或DVB 万能电源板。

9:10D 471K 压敏电阻。

（厂家太缺德，如在整流前加一个压敏电阻，可省去我们维修人员多少劳累和钱财呀！我发现，电源只要有压敏电阻，很少坏整流后的原件.电源IC 代换资料，如有差错，请斧正。

1：THX203RM6203、1803、1203、TFC718S、ＪＨ８２０３2：VIP22Ｐ＝８０２２、T0165、sd4841p（两IC 的3 和4 脚要对调）３：ＤＨ３２１＝DL0165、Ｑ１００、ＤＭ０２６５Ｒ、４：ＴＭ０１６５暂时没有找到资料。

注意：它绝对不能与３２１、ＤＬ0165Ｒ直接代换。

2：VIP22Ｐ＝８０２２、T0165、ＳＤ４１４８Ｐ楼主及各位朋友请注意了，是SD4841 不是SD4148，楼主型号也写错了，技术这活要认真（不知楼主有否自己试过？这样会对待才行。

VIP22 和SD4841 是不同的不能直接代换的，，经过本人试验，SD4841 用原装型号，较好，实在要换的话，经过本人成功代换，误人的）用VIP22A 改变脚接线，再换可行。

，两IC （具体是两IC 的 3 和 4 脚要对调，否则烧IC）功能对比如下：SD4841：1，控制电路地；2，MOSFET 接地；3，电源，4，反馈输入。

5，空；6-8，漏极。

VIPER22：1-2，源极接地；3，反馈输入。

4，电源；5-8，漏极。

不知道的话，不要误导人，好不好。

另外0165 和VIP22 那就更不能换了，请看我附上0165 的资料：引用第19 楼李章元于2011-06-06 11:37 发表的:2：VIP22Ｐ＝８０２２、T0165、ＳＤ４１４８Ｐ楼主及各位朋友请注意了，VIP22 和SD4841 是不同的不能直接代换的，（不知楼主有否自己试过？这样会误人的），经过本人试验，SD4841 用原装型号，较好，实在要换的话，用（具体是两IC 的 3 和 4 脚要对调，否则烧IC）VIP22A 改变脚接线，再换。

液晶常用电源管理芯片

华为企业AP系列802.11n无线接入点简版彩页

6 华为无线接入点的特性规格
华为802.11n系列无线接入点规格列表 Huawei 802.11n 接入点标准协议 MIMO:空间流 SSIDs AP5010 系列 a/b/g/n 2x2 16每射频 10/100/ 1000M 上行链路 AP6010 系列 a/b/g/n 2x2 16每射频 10/100/ 1000M AP7110 系列 a/b/g/n 3x3 16每射频 10/100/ 1000M AP6510/ 6610系列 a/b/g/n 2x2 16每射频 AP6510: 10/100/ 1000M AP6610: 10/100/ 1000M、 SPF 12 VDC 12VDC 12 VDC PoE: PoE: PoE: 802.3af/at 802.3af/at AP7110SN 802.3af/at; AP7110DN 802.3at SN: 6W DN: 9.5W AP6510: PoE: 802.3at AP6610: 100 ~ 240VAC AP6310 系列 b/g/n 1x1 16每射频 10/100/ 1000M AP3010 系列 a/b/g/n 2x2 8每射频 10/100/ 1000M AP2010 系列 a/b/g/n 2x2 8每射频 1×10/ 100/ 1000M, 2×10/ 100M
3.1 AP6010SN-GN/AP6010DN-AGN
• 美观化设计，适合部署在企业办公、校园、医疗领域、大型商场、会展中心等环境 • 采用最新一代 2x2 MIMO 的芯片设计，绿色节能 • 支持胖/瘦一体 • AP6010SN-GN/AP6010DN-AGN每射频最大速率可达300Mbps • 内置天线，2.4G天线增益4dBi，5G天线增益5dBi • 支持802.3af/at以太网供电标准，简化设备安装，扩大了设备的安装范围供电标准 • AP6010SN-GN支持2.4Ghz单频段 • AP6010DN-AGN支持2.4Ghz/5Ghz 双频段

舞台灯具报价单

MINI激光灯-满天星
一、所有配件：1.激光灯一台；2.交流电源适配器一个；3.说明书一份；4.三脚架一个二、规格（红+绿激光舞台灯；SH-01） 1>.电源：交流适配器输入AC110V～ 240V/50～60Hz，输出5.0V 1.5A (电源有三种,任意客户选择：1.常规的扁插头国标电源；2.圆插头欧规电源；) 英规的需要加4块. 2>.激光器<绿光：波长532nm,光功率 50mW；红光：波长650nm，光功率 100mW> 3>.产品尺寸：130*92*52MM净重：0.6KG 4>.装箱资料：20个/箱；毛重14KG；净重 13KG；外箱尺寸为50.5*29.5*29 价格：24台-USD9.92 240台-USD9.02
3色价格-$10.50
6色价格-$10.82
水晶魔球-MP3
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激光舞台灯水晶魔球；具有调节气氛效果。适用于家庭聚会唱歌、卡拉OK、歌舞厅、夜总会、迪厅、酒吧、KTV吧、商场、广场、公园等多个场合使用一、配件：1LED水晶魔球一台；2.说明书一份；3.遥控器：4.U盘需要加5块钱二、规格：(型号:SH-9) 1、光源：大功率LED RGB 6X3W 光束：80个透镜，每个透镜可出3-6束光可以达到240-480束光发光角度：120° 2、控制模式：遥控 3、电源电压：100-240V AC 频率：50-60HZ 功率：10-25W 4、包装规格：19.8*19.8*19cm
50套-$17.13
200套-$13.71
水晶魔球-声控自走
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• • • • • • • • •
激光舞台灯水晶魔球；具有调节气氛效果。适用于家庭聚会唱歌、卡拉OK、歌舞厅、夜总会、迪厅、酒吧、KTV吧、商场、广场、公园等多个场合使用一、配件：1LED水晶魔球一台；2.说明书一份；二、规格：(型号:SH-7) 1、光源：大功率LED RGB 6X3W 光束：80个透镜，每个透镜可出3-6束光可以达到240-480束光发光角度：120° 2、控制模式：声控/自动/ 3、电源电压：100-240V AC 频率：50-60HZ 功率：10-25W 4、包装规格：19.8*19.8*19cm

802说明书

目录前言 (1)产品概述 (2)产品性能 (2)部件介绍 (3)安装说明 (4)显示面板说明 (5)参数设置 (5)操作简图 (9)物件探测调节 (10)装箱清单 (10)技术参数 (11)注意事项 (12)常见故障及解决办法 (12)干扰说明 (13)前言首先,感谢你购买本公司的金属探测门！！！本说明书对本产品进行了充分的描述与说明，在使用本产品前，您可以花一小段时间来阅读本说明书，这样您可以更了解本产品的性能，更好的去操作，同时您也能看到本产品更好的性能。

金属探测门可以应用于机场，监狱，考场，工厂等场所，对通过的人体进行准确检测身上是否携带金属物品。

本说明书对通过式金属探测门的安装与使用进行了详细的说明。

适用对象为使用产品客户，了解产品潜在客户等群体。

注意：本公司有权对本说明书及产品进行变更，如有变更，恕不另行通知。

本说明书编制过程中力求内容的准确和完善，但不保证本说明书没有任何错误或漏失,若有错误与缺失之处，欢迎来电赐教，我们将把您的意见作为修正参考意见之一。

- 1 -- 2 -我公司生产的802标准版通过式金属探测门采用了国际先进技术，专门用于对人身上隐藏的金属及合金物品的探测防范，它安全性高，适用性强，灵敏度高，探测范围广，抗外界干扰能力强，能够全天智能工作，并可以声光同时报警，在质量，效果，技术上均达到了世界领先水平，它可以调节灵敏度，最高精确探测可以小到曲形别针大小的金属物，并可以区分人体隐藏的具体位置，用户还可以根据金属的大小，体积，重量等进行灵敏度的设置，以排除钥匙，首饰，皮带金属扣而产生的误报警，而且本产品还可以防止贵重物品的流失，如海关，生产重金属工厂，私人毫宅等地方，都可以购买本产品作为一道安全防护。

因此安装本公司生产的通过式金属探测门是你英明的选择！◆ 六个探测区域：6个相互重叠的探测区域划分，准确判断金属物品的位置。

◆ 报警区域指示：在门的两边或主机箱有与人体等高的报警部位指示灯，配和声音，一目了然，大大提高工作效率。

802.11网络及ap简介

AP定义
要点一
无线接入点（AP）
AP是一种无线设备，用于在局域网（WLAN）和有线网络之间提供无线连接。AP通常用于家庭、办公室和其他公共场所的网络设置。
要点二
AP的主要功能
AP的主要功能是提供无线覆盖，将无线设备（如笔记本电脑、智能手机和平板电脑）连接到网络。AP可以与有线网络集成，实现无线和有线网络的互操作性。
移动设备
移动设备如智能手机、平板电脑、笔记本电脑等，可以通过内置的无线网卡或外部无线网卡连接到802.11网络。
网络基础架构
无线接入点（AP）
无线接入点是802.11网络中的基础设备之一，它负责将无线信号转换为有线网络，并实现网络数据的传输。
分布式系统（DS）
分布式系统是由多个无线接入点组成的网络架构，它可以实现无线信号的覆盖和无缝切换，提高网络的可用性和性能。
802.1x认证
802.1x认证概述
802.1x是一种基于端口的网络访问控制协议，它提供了对无线网络的进一步保护。
802.1x认证的优点
802.1x认证可以防止未经授权的设备访问网络，同时提供了更高级的安全性，如EAP（
可扩展认证协议）和PEAP（受保护的EAP ）。
05
802.11 AP概述
802.11网络使用HTTP（Hypertext Transfer Protocol）协议，以实现网页浏览和数据传输。
FTP
802.11网络使用FTP（File Transfer Protocol）协议，以实现文件传输。
04
802.11网络安全
WEP加密
WEP加密概述
WEP（Wired Equivalent Privacy）是一种用于保护无线网络安全的标准，其目标是提供与有线网络相当的保密性。

h3c新一代802.11ac wave2系列ap说明书

H3C New Generation 802.11ac Wave2 Series APOverviewH3C 802.11ac Wave2 series Access Point (AP) is based on the new generation of self-developed Gigabit 802.11ac MIMO and 802.11ac Wave2 MU-MIMO technology. Compared with existing 802.11ac technology, Wave2 can support simultaneous data transmission to multiple users, and with increased overall throughput.H3C provides industry broadest portfolio of Wave 2 series AP, which include WA560, WA538, WA536, WA530 and WA510H, in which WA538 and WA536 are the leading Wave2 triple band AP, WA510H is some of the first wall plate Wave2 APs. Combined with their compact appearance, H3C 802.11ac Wave2 series AP provides flexible installation such as for wall, ceiling, or other environments.FeaturesSmart cloud access and optimal WLAN TCOH3C 802.11ac Wave2 series AP complies with 802.11ac Wave2 standard and features maximum four streams 1733Mbps wireless transfer rate for 5GHz (WA560 series and WA538) and total 3Gbps speed of combining 2.4GHz and 5GHz (WA538).With the smart adaptive antenna array technology, it can increase the scope of coverage, improve access density and operation stability, and provide a better mobile cloud access and wireless network total cost of ownership (TCO).Dual uplinks (Except WA510H)H3C 802.11ac Wave2 series AP supports Dual uplink ports, which remove any bottleneck that limits the upstream speed in wireless products with Fast Ethernet ports, and provide a smooth upgrade path that allows for faster transmission and diversified RF deployment strategies.Dual GE ports also provide uplink transmission backup that will remove a single point of failure on the wired transmission. Triple band access (WA538 & WA536)H3C innovative triple band technology offers customers 2.4GHz+5GHz+5GHz unparalleled high density and extremely high performance access. The total combined 2.4GHz and 5GHz speed can reach 3Gbps on WA538.D a t a s h e e tThe triple band access solution is extremely useful in high density scene such as meeting room or classroom.Install an AP in 3 to 5 minutes, 5 steps only (WA510H)Wall plate series AP uses the international standard wall plate design. Installing an AP is just as simple as installing other switching panels. All it takes is 5 steps in less than 5 minutes which effectively accelerates the wireless network deployment process.Multiple users’ simultaneous communication, breaking wireless competitionH3C 802.11ac Wave2 series AP supports Multi-user MIMO (MU-MIMO) technology, MU-MIMO has become thequintessential feature for wave2 AP. MU-MIMO technology which allows the AP to transmit data to multiple terminal devices simultaneously. According to terminal stream quantity, H3C 802.11ac Wave2 series AP can concurrently transmit data to multiple terminals with single stream. This improves data transmission efficiency, raises the number of usersaccessing the AP and provides better user experience.Green designH3C 802.11ac Wave2 series AP employs a green design which supports dynamic MIMO power saving (DMPS), enhanced automatic power save delivery (E-APSD), and smart identification of real terminal network requirements. It can dynamically adjust the MIMO working mode and efficiently put terminals to sleep from time to time.Green-AP mode supports single radio standby and allows for more precise control in power saving.H3C 802.11ac Wave2 series AP supports the innovative per-packet power control technology, which reduces standby power consumption and improves the battery lives of mobile devices without losing packets.Dual IPv4/IPv6 protocol stacks (Native IPv6)H3C 802.11ac Wave2 series AP is fully compliant with IPv6 and implements a dual IPv4/IPv6 protocol stacks. Existing IPv4 and IPv6 wired networks can work in parallel and seamlessly to register WLAN with WX series ACs, so that it never runs as an information silo.Real Time Spectrum Guard (RTSG)Real Time Spectrum Guard (RTSG) is the innovative H3C professional state-monitoring program for the wireless spectrum.H3C 802.11ac Wave2 series AP supports the internal RF data acquisition module to achieve deeply integrated monitoring and real time spectrum protection.The RTSG Console is integrated into the iMC (intelligent Management Center), and performs data acquisition through the CAPWAP tunnel management and Sensor AP. It can achieve 24x7 wireless signal quality monitoring, trend assessment and unauthorized interference alert. Through active probe and 2.4GHz/5GHz RF interference source (WiFi or non-WiFi) in every band, it provides a graphic representation of real-time FFT plot of the spectral density plot, spectrum diagram, the duty cycle map, event spectrum diagram, channel gain and interference gain. It can also automatically identify the source of interference, to determine the location of rogue wireless equipment, to ensure the wireless network is always in great shape.Combined with H3C iMC IAR (Intelligent Analysis Report) module, it can maintain a complete history of RF quality in the coverage area, including its trace and playback, automatically generate customized trend, compliance and audit reports.D a t a s h e e tTo cater for the different supervision demands in user's wireless environment, the RTSG solution can be deployed in either Local mode or Monitor mode. In Local Mode, you can maintain normal user access and data packet forwarding without compromising effective spectrum protection.End user Admission Domination (EAD)End user Admission Domination (EAD) integrates network access and endpoint security products, which ensure onlycomplied wireless clients with mandated enterprise security policies to access network, reducing threat levels from infected wireless clients and raising the bar and improving the overall security of the wireless network. When working with a security policy server, it can remind users, isolate and boot them off the network when their systems are infected or not patched properly.Remote probing and analysisH3C 802.11ac Wave2 series AP can work as a remote probing and analysis sensor device. It can intercept WiFi packets nearby and save to a local device in real-time for troubleshooting and optimization analysis. Remote probing can conduct a non-convergent image for working channels, or a polling of all channels to satisfy wireless network monitoring andmaintenance requirements.RF Optimizing Engine (ROE)H3C 802.11ac Wave2 series AP supports RF Optimizing Engine (ROE), which effectively increases the number of concurrent sessions in middle to high-density access, accomplishes streaming media application acceleration and QoS throughcharacter and protocol based RF optimization. Features include multi-user fairness, mixed access fairness, interference filtering, speed optimization, spectrum guide, IPv4/IPv6 multicast signal boost, per-packet power control and intelligent bandwidth guarantee.Intelligent AP load balancingH3C 802.11ac Wave2 series AP comes with intelligent load balancing, which spreads the workload according to the number of concurrent users and traffic. If a new incoming user breaks the preset loading limit, AP will check the location of the wireless client in real-time, determine if nearby APs with smaller workload can provide access, and deny the user access only when such AP exists. What sets H3C intelligent load balancing apart from existing load balancing schemes is that it kicks in only if the user is located in an area with overlapping AP coverage, and prevents loss of access when the workload limit is reached but no backup AP exists. This maximizes wireless network capacity while preventing any erratic behavior in load balancing.Unified management of wired and wireless networksWireless Service Manager (WSM) of iMC provides unified management of wired and wireless networks, adding network management functions into existing wired network management systems. All WSM based wireless products can bemanaged through the open management protocol.WSM is SOA complied, modular based, fully expandable and evolving with the growing needs of network management. It offers a web-based management system and a simple and user-friendly management platform for wireless networkadministrators. When working in iMC and coupled with other modules, it also implements panel management wirelessD a t a s h e e tmanagement, troubleshooting, performance monitoring, software version control, deployment configuration management and user access management.SpecificationsHardware SpecificationsD a t a s h e e tSoftware S pecificationsD a t a s h e e tD a t a s h e e tD a t a s h e e tOrdering Information:New H3C Technologies Co., LimitedBeijing base8 GuangShun South Street, Chaoyang District,BeijingZip: 100102Hangzhou base466 Changhe Road, Binjiang District, Hangzhou, Zhejiang Province 310052 P.R.ChinaZip: 310052Tel: +86-571-86760000Fax: +86-571-86760001 Copyright ©2018 New H3C Technologies Co., Limited Reserves all rightsDisclaimer: Though H3C strives to provide accurate information in this document, we cannot guarantee that details do not contain any technical error or printing error. Therefore, H3C cannot accept responsibility for any inaccuracy in this document. H3C reserves the right for the modification of the contents herein without prior notification。

AP8022 V1.0

GREEN POWEROFF LINE SMPS PRIMARY SWITCHERFeatures●85v to 265v wide range AC voltage input ●A 730v MOSFET on the same silicon chip ●Auto start up with high voltage current source ●PWM with current mode control ●10v to 39v wide range VCC voltage ●Fixed 55KHz switching frequency●Automatic skip cycle mode in low load condition.●Over temperature,over current and over voltage protection●Auxiliary under voltage lockout with hysteresisApplications●Power AC/DC Adapters for Chargers ●DVD/VCD power supplies●Electromagnetic Oven power supplies ●Air Conditioner power supplies ●STB power supplies●AC/DC LED Driver ApplicationsPackage●SOP8&DIP8TypeSOP8DIP8European (195-265Vac)12W 20W US (85-265Vac)7W12WTypicalApplicationPin ConfigurationAbsolute Maximum Ratings(T a=25°C,unless otherwise specified)Symbol Parameter Value Unit V SW SW to GND Voltage(T j=25-125°C)-0.3 (730V)I D Continuous VDMOS Drain Current Internally limited A VCC Supply Voltage0 (50V)I COMP Feedback Current3mAV ESDMM Electrostatic Discharge:Machine Model((R=0Ω;C=200pF)200VV ESDHBM Electrostatic Discharge:HBM2000VT j Junction Operating Temperature Internally limited°C T c Case Operating Temperature-40to150°C T stg Storage Temperature-55to150°CElectrical Characteristic(Power)Symbol Parameter Condition Min.Typ.Max.UnitBV DSS VDMOS Breakdown Voltage I D=1mA;V COMP=2V730750VI DSS Zero Gate Voltage Drain Current V DS=500V;V COMP=2V;100μAR DSON Static Drain-Source on Resistance V GS=10VI D=0.4A;1517ΩT r Rise Time I D=0.1A;V IN=300V50T f Fall Time I D=0.2A;V IN=300V100nsC OSS VDMOS Drain Capacitance V DS=25V40pFElectrical Characteristic(Control)(T a=25°C,VCC=18V,unless otherwise specified)Symbol Parameter Condition Min.Typ.Max.Unit UVLO SECTIONV START VCC Start Threshold Voltage V COMP=0V1415.517V V STOP VCC Stop Threshold Voltage V COMP=0V8910V V HYS VCC Threshold Hysteresis 5.8 6.57.2V OSCILLATOR SECTIONF OSC Initial Accuracy V STOP≤VCC≤35V;0≤T j≤100°C485562kHzΔF/ΔT Frequency Change WithTemperature-25°C≤T j≤+85°C±5±10%FEEDBACK SECTIONI COMP Feedback Shutdown Current Tj=25°C,V COMP=0V0.9mAR COMP COMP Pin Input Impedance ID=0mA 1.4kΩCURRENT LIMIT(SELF-PROTECTION)SECTIONG ID I COMP to I D Current Gain560I LIM Peak Current Limit T j=25°C0.560.700.84A T D Current Sense Delay to Turn-Off I D=0.2A200ns T B Blanking Time500ns T ONMIN Minimum Turn On Time700ns PROTECTION SECTIONT SD Thermal Shutdown Temperature140170-°C T HYST Thermal Shutdown Hysteresis40°C V OVP Over Voltage Protection394347V SUPPLY CURRENT SECTIONI CH Startup Charging Current-1mAI CHOFF Start Up Charging Currentin Thermal ShutdownVCC=5V;V DS=100VT j>T SD0.2mAI OP0Operating Supply Current(Control Part Only)SwitchingV COMP=0V4mAI OP1Operating Supply Current(Control Part Only)Not SwitchingV COMP=2V 2.65mAFunctional DescriptionStartupThis device includes a high voltage start up current source connected on the SW of the device.As soon as a voltage is applied on the input of the converter,this start up current source is activated and to charge the VCC capacitor as long as VCC is lower than VSTART.When reaching VSTART,the start up current source is cut off by UVLO&TSD and the device begins to operate by turning on and off its main power MOSFET.As the COMP pin does not receive any current from the opto-coupler,the device operates at full current capacity and the output voltage rises until reaching the regulation point where the secondary loop begins to send a current in the opto-coupler.At this point,the converter enters a regulated operation where the COMP pin receives the amount of current needed to deliver the right power on secondaryside.Fig 1Startup circuitFeedbackA feedback pin controls the operation of the device.Unlike conventional PWM control circuits which use a voltage input,the COMP pin is sensitive to current.Figure 2presents the internal current mode structure.The Power MOSFET delivers a sense current which is proportional to the main current.R2receives thiscurrentFig 2Feedback circuitand the current coming from the COMP pin.The voltage across R2VR2is then compared to a fixed reference voltage.The MOSFET is switched off when VR2equals the reference voltage.Leading Edge Blanking (LEB)At the instant the internal Sense FET is turned on,there usually exists a high current spike through the Sense FET,caused by the primary side capacitance and secondary side rectifier diode reverse recovery.Excessive voltageacross the sense resistor would lead to false feedback operation in the current mode PWM control.To counter this effect,the device employs a leading edge blanking (LEB)circuit.This circuit inhibits the PWM comparator for a short time (typically 500ns)after the Sense FET is turned on.Under Voltage Lock OutOnce fault condition occurs,switching is terminated and the Sense FET remains off.This causes VCC to fall.When VCC reaches the UVLO stop voltage,9V ,the protection is reset and the internal high voltage current source charges the VCC capacitor.When VCC reaches the UVLO start voltage,15.5V ,the device resumes its normal operation.In this manner,the auto-restart can alternately enable and disable the switching of the power Sense FET until the fault condition is eliminated.Thermal Shutdown (TSD)The Sense FET and the control IC are integrated in the same chip,making it easier for the control IC to detect the temperature of the Sense FET.When the temperature exceeds approximately 170°C,thermal shutdown is activated,the device turn off the Sense FET and the high voltage current source to charge VCC.The device will go back to work when the lower threshold temperature about 140°C is reached.Over Voltage Protection (OVP)In case of malfunction in the secondary side feedback circuit,or feedback loop open caused by a defect of solder,the current through the opto-coupler transistor becomes almost zero.Because excess energy is providedto the output,the output voltage may exceed the ratedvoltage,resulting in the breakdown of the devices in the secondary side.In order to prevent this situation,an over voltage protection(OVP)circuit is employed.If VCC exceeds43V,OVP circuit is activated resulting in termination of the switching operation.In order to avoid undesired activation of OVP during normal operation, VCC should be properly designed to be below43V.Reference DesignCircuitPackage Dimensions（DIP8）IMPORTANT NOTICEChipown Microelectronics Co.Ltd.reserves the right to make changes without further notice to any products or specifications herein.Chipown Microelectronics Co.Ltd.does not assume any responsibility for use of any its products for any particular purpose,nor does Chipown Microelectronics Co.Ltd assume any liability arising out of the application or use of any its products or circuits.Chipown Microelectronics Co.Ltd does not convey any license under its patent rights or other rights nor the rights of others.。

AP8022小家电AC-DC铺助电源电源IC

AP8022小家电AC-DC铺助电源电源IC
AP8022产品描述：
AP8022A芯片内部集成了脉宽调制控制品和功率MOSFET，适用于小功率离线开关电源，该芯片提供了完整的智能保护功能，包括过流保护，过压保护，欠压保护，过温保护，突发模式能够降低系统处于待机模式的功耗。

该芯片还内置高压启动模块，保证系统能迅速启动。

AP8022产品特点：
满足85-265V宽AC输入工作电压
单芯片集成730V功率MOSFET
内部集成了高压启动电路
9.5-37V宽电压工作范围
固定55KHz工作频率
轻载自动调周期功能
欠压保护功能
保护功能
过流保护
过湿保护
VCC过压保护
AP8022广泛应用于：
电磁炉电源
小家电铺助电源
LED驱动。

双高速低噪声运算放大器AD8022

双高速低噪声运算放大器AD8022关键字：放大器功耗电流1概述AD8022由两个低噪声的高速电压反馈放大器组成。

它的两个输入端产生的电压噪声只有2．5nV／√Hz。

同时具有带宽宽，失真小等特性。

当驱动电容负载时，AD8022具有较高的输出电流和较好的稳定性。

它的功耗较小，在5V到±12V的电源下工作时，每个放大器仅消耗4．0mA的静态电流。

AD8022采用8脚microSOIC和SOIC封装。

由于其过电压恢复时间短，带宽宽，所以它可以作为非对称数字用户线（ADSL：Asymmetric Digital Subscriber Line）、超高速数字用户线（VDSL：Very－high－data－rate Digital Sub－scriber Line）以及其它xDSL收发信机的接收信道前端。

另外，AD8022中的两个独立的电压反馈放大器也可以作为线路变压器的差动接收器或xDSL线路接口电路的有源滤波器。

图1所示为AD8022的引脚排列图。

2 特性参数及性能2 .1 最大功率损耗AD8022的最大功耗受外壳结温的限制。

对于塑料封装的器件，它的最大安全结温大约为150℃。

一旦超过这个限制，会使外壳与基底的应力发生改变，从而引起性能参数的漂移。

若长时间地使结温高于175℃，则会造成器件的失灵。

虽然AD8022具有短路保护功能，但这仍不能充分保证器件在各种条件下都没有超过结温。

为了确保器件的安全，必须根据最大功率降额曲线来进行操作。

2．2电源和退耦为了使AD8022能够发挥较好的技术性能，应提供高质量的±12V电源。

同时在工作中，必须注意对电源引脚端的退耦。

对于低频信号，应在AD8022附近放置一对10μF 的电容。

另外，在每个引脚旁，也应尽可能近地连接一个0．1μF的退耦电容。

AD8022具有低噪声、低失真、低功耗、高速度等性能。

表1给出了AD8022的主要性能参数（工作条件为T＝25℃，Vs＝±12V，RL＝500Ω，G＝1）。

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220V 11.98 11.99 12.00 12.00 12.00 12.01 50 40 35 30 25 20
260V 11.98 11.99 12.00 12.00 12.00 12.01 50 40 35 30 25 20
电压调整率
<1%
负载调整率
<1%
二．电源效率测试：
AC 输入
电压电流 (V) (mA) 220 87.1
元件清单
序号 1 2 3 3 4 5 6
部品名变压器 TR1 芯片 U1 芯片 U3 光耦 U2 整流桥 BG 二极管 D1 二极管 D2
规格 EI28，参见附一 AP8022 TL431 PC817B 2KBP10 UF4007 1N4007
供应商
品牌
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
AP8022 Demo
(2) 次级电压波形
220 75.2
220 52.7
220 31.5
220 21.25
220 10.20
220 4.88
220
95
DC 输出
电压电流
(V)
(A)
11.98 1.4A
11.99 1.2A
12.00 0.84A
12.00 0.5A
12.00 0.3A
12.00 0.1A
12.01 空载
/
短路
效率 (%)
87.53 86.97 86.94 86.58 77.01 53.48
一.电源调整率：
Chipown
输出
直流输出电压 Vout(V)
输出纹波 Vpp(mv)
1.4 输入 A 90V /
1.2 0.84 0.5 0.1
A
A
A
A
空 1.5 1.2 0.84 0.5 0.1 空载 A A A A A载
/ 12.00 12.00 12.00 12.01 / / 40 35 25 25
18KΩ，1/4W
33 压敏电阻 RV
10D471K
34 热敏电阻 RT
SCL103
35 保险丝 FU
2A，250VAC
附一
Chipown
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
内置振荡器减少了外围器件(调节振荡器频率所用的电容或电阻)的数量和 PCB 版图的面积；
VDD 输入范围达到 30v，在辅助线圈输出变化很大时，仍能保证电路正常工组，无需使用特殊的钳位措施来限定 VDD 的变化。
AP8022 DEMO 系统为反激式开关电源，单路输出额定电压为 12V，最大允许输出电流 1.5A。
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
AP8022 Demo
1．DEMO 板 pcb 布局
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
AP8022 Demo
Chipown
VIPER22A：
/ /
AC 输入
电压电流
(V) (mA)
/
/
/
/
110 107.0
110 62.5
110 37.35
110 15.25
110 4.80
110 150
DC 输出
电压电流
(V) (A)
/
/
/
/
12.00 0.84
12.00 0.5
12.00 0.3
12.00 0.1
12.01 空载
/
短路
效率 (%)
AP8022 Demo
Vin：220Vac，Vout：12V/0.1A～12V/1.4A
Chipown
Efficiency vs. Vin： Vin：90Vac～260Vac，Vout：12V/0.84A
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
AP8022 Demo
7 肖特基二极管 D3 HER5003
8 EMI 滤波器 LB1 13mHⅩ2
9 电感 L1
10uH
10 X2 电容 CX1
0.047uF/250V
11 Y1 电容 CY1
2.2nF/250V
12 电容 C1
1KV/4.7nF
13 电容 C2
63V/10nF
14 电容 C3
63V/100nF
电压电流 (V) (mA) 180 63.4 220 52.7 260 46.1
DC 输出
电压电流
(V)
(A)
12.00 0.84
12.00 0.84
12.00 0.84
效率 (%)
88.33 86.94 84.10
Efficiency vs. Pout：
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
AP8022 Demo
Chipown
AP8022 演示系统
AP8022 采用先进的高低压兼容工艺，将 PWM 控制电路和耐压高达 700V 以上的 MOSFET
完美的集成在同一颗芯片上。
主要特征：
电流控制模式；内置高压 MOSFET（>700v）； VDD 输入范围为 9～38v；内置频率为 62KHz 振荡器集成了过压、欠压、过流、短路、过温等完整的保护方案；空载时芯片静态功耗小于 100mW；自动重启动；
2．DEMO 板电路
Chipown
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
AP8022 Demo
15 电容 C4
1KV/2.2nF
16 电容 C5
63V/22nF
17 电解电容 CD1 10uF/400V
18 电解电容 CD2 22uF/400V
19 电解电容 CD3 22uF/50V
20 电解电容 CD4 1000uF/25V
21 电解电容 CD5 470uF/16V
22 电阻 R1
180KΩ，2W
110V /
/ 12.00 12.00 12.00 12.01 / / 40 30 25 25
130V /
/ 12.00 12.00 12.00 12.01 / / 40 30 25 20
180V 11.98 11.99 12.00 12.00 12.00 12.01 50 40 35 30 25 20
23 电阻 R2
9.1KΩ，1/4W
24 电阻 R3
4.7Ω，1/4W
25 电阻 R4
短路线
26 电阻 R5
1.5K，1/4W
27 电阻 R6
10Ω，1/4W
28 电阻 R7
470Ω，1/4W
29 电阻 R8
220Ω，1/4W
30 电阻 R9
1KΩ，1/4W
31 电阻 R10
4.7KΩ，1/4W
32 电阻 R12
比较优势：
内置高压 MOSFET 能有效的节约购买分离器件的成本，同时 PCB 版图的面积也将缩小。由于 PWM 控制电路和功率管在同一个芯片上，开关回路的面积能最大程度的减小，相对采用 PWM 控制芯片和功率管分离的方案来说，EMC 性能会有很大的优势；
无需采用高压启动电阻，可以有效的降低待机功耗，同时还可节省外围元件（高压电阻），提高了安全性能（高压电阻的短路或不符合规范将可能烧坏控制芯片）；
AP8022 Demo
Chipown
绕组 1：绕组 2：绕组 3：
0.35mm 0.25mm 0.35mm 双线
56 匝 7匝 7匝
绕法示意图：
电感量为 1.7mH
注：最好能调节反馈绕组的圈数，使芯片正常工作时的工作电压在 10~16V 之间，这样短路保护时效果比较理想。
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2
Chipown
(3) 输出电压纹波波形
4/F, Building F, IT industry Park No.21 Changjiang Road, Wuxi New Destrict Tel: +86(510)8521-7718 Ver 1.2