【技术】光耦合器的结构、工作原理和重要参数

时间： 2023-10-11 来源：先进光半导体官网

技术问答

选型帮助

研发客服

商务客服

光耦合器是一种通过使用光能将输入控制信号耦合到输出或负载的器件，其方式使得输入信号和负载(输出)之间的电气隔离也保持不变。光耦合器的基本功能是通过光能耦合输入和输出电路(因此称为光耦合器)，并在输入和输出电路之间提供完全隔离，因此光耦合器有时也称为光隔离器。在输入和输出电路之间提供电气隔离的目的是保护它们免受高压瞬变或高压短波、浪涌电压(即电压突然急剧增加)和低电平噪声的影响。此外，通过光耦合器连接不同的电压电平电路和不同的接地(即不同的电压电路和不同的接地也可以通过其使用来分开或隔离)。请记住，此设备提供高达2500伏的隔离。

光耦合器或光耦合器的输入电路包括非典型发光二极管(LED)及其输出电路光电晶体管。换句话说，光耦合器由发光器件(即发光器件)和光敏器件(对光敏感的器件)的组合组成。固定在光耦合器中的LED实际上是砷化镓(GaAs)红外发射器，产生的光约为0.9X10-6m波长。为了获得优良的耦合介质，使用红外玻璃和最佳电气隔离，使用气隙。请记住，除了LED和光电晶体管组合外，光耦合器还提供LED和光电达林顿封装或LED和LASCR封装。

图示了光耦合器及其连接。当光耦合器的输入电路供电时，输入电压v在电路变为正向偏置。因此，LED照射并开始发光。由于输入和输出电路通过光能相互耦合，因此当LED光传输到固定在输出电路中的光电晶体管时，它就会打开。因此，来自外在负载电路的电流开始流动。该系列的最大优点是输入和输出电路之间存在最佳的电气隔离类型(即低功率控制电路和高功率负载电路)。

光耦合器的类型：

1).达林顿晶体管

2).可控硅输出耦合器

3).光电可控硅输出耦合器

4).光隔离交流线性耦合器

5).数字输出耦合器

在图(d)中，展示了一种光隔离线性耦合器。该器件将输入电流的变化转换为输出电压的变化(即，在该器件中，输出电压可以通:过输.入电流的变化来改变)。输出电路由放大器组成。光电二极管已与其输入端子平行固定。光电二极管感测LED发出的光的变化，并向放大器发送输入信号，而放大器的输出端存在发射器跟随器级。这种耦合器用于电话线耦合和音频目的。

在图(e)中，举例说明了数字输出耦合器。该器件包括一个高速检测器电路，之后有一个晶体管级。当光从LED发出时，光激活的探测器(通过在其上辐射的光起作用)操作并打开输出晶体管。因此，集电极达到低电压电平。当光不通过LED传输时，它不会发光。因此，集电极达到高电压电平(即输出处于高电压电平)。这种类型的器件最常用于数字电路。

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由杰西啊杰西转载自先进光半导体官网，原文标题为:光合器的结构、工作原理和重要参数，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

全部评论（0）

暂无评论

一文详解光耦的作用、工作原理、优点、类型和应用

光耦合器（Optocoupler，简称光耦）是一种常用于电子电路中的半导体器件，主要用于电气隔离、信号传输和噪声抑制。光耦的基本作用是通过光信号来传递电信号，实现输入与输出之间的电气隔离，从而保护电路不受高电压或噪声的干扰。本文TOPPOWER详细介绍了光耦的作用、工作原理、优点、类型、应用等内容。

技术探讨发布时间 : 2024-11-10

探索达林顿光耦与晶体管光耦的区别

在现代电子技术中，光耦是一种广泛应用的电子元件，它通过光信号实现电气隔离，保证信号传输的安全性和完整性。光耦合器的种类繁多，本文晶台将重点探讨两种常见类型：达林顿光耦和晶体管光耦的区别。

技术探讨发布时间 : 2024-07-25

浅析施密特触发器光耦的主要特点

施密特触发器光耦是将施密特触发器与光耦合器件（光电耦合器）相结合的一种电路设计。在这种设计中，光耦将输入信号转换成光信号，并通过光学隔离的方式将输入信号和输出信号电气地隔离开来，以增强电路的抗干扰能力和安全性。本文中晶台将为大家浅析施密特触发器光耦的主要特点。

技术探讨发布时间 : 2024-05-10

【选型】华联电子光耦合器/智能红外器件与模组/光电传感器/数码显示模块选型指南

目录- 光耦合器红外遥控接收放大器光电传感器红外管&光敏管 LED数码显示模块背光源球泡灯红外LED光源组件

型号- HRM157KJ1B0□★,AQY412,AQH0213,AQY414,HPC962B,HPC962A,HPC3063-MS,HMPDK6AT,HPL6M237,HPD701H,HSCR-3223,LTV101,HCPL-2630,HPC3023,AQW21,HPC952-MS,CNY17,HPC817,AQH2223,TLP170J,HPC814,HSSR-S1A08,HRM157□B1B00,HSSR-S1A01,HSSR-S1A05,HRM136KJ9L0□★,HSSR-S1A04,LTV852,HPT603AJP,TLP266,HOICS0107D,TLP265,HSCR-0123,HSCR-1213,HSSR-S1A0L,TLP785,HRM136KJ7D0□★,HRM138KJ7D0□★,HPC300,LTV217,HPC942,AQH3223,HPC952B,HPC952A,HOICD0301,AQY272,HCPL-M601,PS2381,HSCR-1223,HPL6W157,HPL6N137-D6/S6,AQW414,AQY212G2S,TLP291,LTV725,HV35281IRG01CC,HMIRF27T,HPC931,6N137,6N136,AQH0223,6N139,6N138,HQPAC220E14-09RMP1,AQH3213,6N135,PS2801,MOC3023,HRM138KJ9F0□★,HPL6N237,HMPDG17T,HRM136□B9L00,HPC3053,LTV715,HGD3120,AQH1223,HPL6S137,AQY212,HRM136□B7D00,HIR305A□□□□P,AQY214,AQY216,TLP627,HRM138□B9F00,ACNT-H61L,HOICD0201,HRM138□B1R00,HSCR-2213,HRM138KJ1R0□★,HPC3063,HPC357,LTV826,ACPL-W341,TLP350,HPC3053-MS,AQH1213,AQY221,HPL6N135,HV35281PTN01AM,HPL6N136,TLP172AM,HPD7E6FAP,HPL6N137,HPL6N138,HSSR-DA25,HPL6N139,MOC3083,HGD341W,TLP187,HCPL-063L,HPC101,HSCR-2223,LTV816,LTV815,TLP181,LTV814,HGD341P,AQH2213,TLP172GAM,AQW212,HOICD0104,AQW214,AQW610,HSSR-DA15,HRM138□B7D00,MOC3053,HSSR-41A0L,HSSR-DA11,HSSR-41A05,TLP531,HSSR-41A06,HCNR201,HSSR-DA21,HSSR-41A04,HSSR-41A01,HSCR-0213,AQW216,AQW612,HMIRX89T,HPD7E8FMP,HPC217,HPC3083,HSSR-61A0D,AQV258,HSSR-DA05,HSSR-DA04,HSSR-DA06,HSSR-DA01,MOC3063,HSSR-DA0L,LTV356,HSSR-41A15,HPT605AJP,HSCR-3213,LTV352,HSCR-0223,HSSR-41A11,PR32MF5,HRM138□B7800,ACPL-P341

选型指南 - 华联电子 PDF 中文下载

WAGO（万可）电气连接技术和工业接口模块产品选型指南（英文）

描述- Easy, safe, maintenance-free: Perfect for DIN-rails, circuit boards or junction boxes or as pluggable connectors in cable ducts or control cabinets – WAGO offers the right electrical interconnect solutions for every application.

型号- 2002-1311/1000-410,750-815/325-000,2002-1311/1000-411,762-6XXX,750-461,750-464,750-463,285-1169,750-466,750-465,787-783/000-040,750-468,750-467,750-469,2759-101/1110-4000,750-979/000-013,2852-7301,284-1XX,750-979/000-011,750-979/000-012,745-502/006-000,2204 SERIES,232-732/031-000,855-3XX,750-451,280-562/281-411,750-450,750-453,750-452,750-455,750-454,211-837/000-002,750-457,750-456,750-459,2091-1302,2060-1852/998-404,857-1330,2091-1308,280-562/281-420,852-1816,852-1813,852-1812,750-480,862-1625/999-950,750-482,750-484,750-483,750-486,750-485,750-489,830-XXX,285-1161,734-242/105-604,231-444/040-000,285-1163,285-1165,2092-13XX,285-1164,285-1167,750-471,750-470,750-473,750-472,280-562/281-434,750-475,279-402,750-474,750-477,2091-1328,750-476,750-479,750-478,281-532,750-365/040-000,281-530,2091-1322,232-572/007-000,281-531,750-418,738 SERIES,2002-1674/401-000,739-3202,2009 SERIES,862-1694,2734-102/031-000,862-1693,279-409,750-466/025-000,280-301,280-302,280-303,279-415,280-306,769-176/000-012,231-876/001-000,280-308,280-309,750-421,750-425,281-613/281-417,750-428,750-427,750-408,281-613/281-418,750-407,750-409,739-3212,750-636/000-800,2004-4XX,750-508/040-000,787-878/000-2500,279-422,280-312,2110-12XX,769-176/000-006,2200-12XX,280-315,280-319,750-412,750-415,750-414,765 SERIES,2004-1311/1000-410,285-117X,727 SERIES,855-9150/2000-1251,2004-1311/1000-411,232-324/026-000,787 SERIES,279-432,279-433,2091-1352,734-442/001-000,2759-207/271-1000,285-118X,734-362/008-000,750-427/040-000,2091-1362,750-431,750-430,750-432,279-440,750-439,231-2116/026-000,816-XXX,734-332/018-000,862-1652,2202-1711/1000-867,250-2XX,810 SERIES,233-4XX,20066,211-500,284-341,2006-12XX,750-461/000-200,769-251/000-006,260-XXX,284-339,284-330,794-XXXX,2022-2234/999-953,2204-13XX,279-470,279-471,2606-3352,284-328,2065-XXX,2202-1711/1000-836,284-325,862-1662,734-520/037-000,770-7XX,2616-1102/020-000,279-483,279-482,2606-3362,2231-1XX,2616-1352,231-102/031-000,2616-1358,706-2500,750-484/000-001,255-5XX,2004-1411/1000-411,2004-1411/1000-410,862-1603,862-1605,862-1604,279-490,832 SERIES,279-492,2022-106/999-953,870 SERIES,750-491,2002-1911/1000-836,750-493,750-502/000-800,750-492,750-495,750-494,750-497,750-496,206,231-346/108-000,750-494/025-000,207,750-498,281-512,209,281-511,793-4XXX,750-494/025-001,859-4XX,231-742/001-000,862-1632,862-9594,862-1634,862-1633,210,211,750-1491,862-1625,215,862-9593,218,2002-171,750-508/000-800,750-665/000-001,2002-172,750-624/020-001,750-624/020-002,2787-2448,857-7XX,221,222,236-2XX,862-1615,2002-160,2002-161,2202-1981/1000-435,2202-1981/1000-434,769-221,792 SERIES,769-222,2624-1512,862-1525/999-950,231,769-217,2002-2647,232,233,234,756-8XXX,231-102/008-000,235,236,2020-12XX,769-214,731-132,284-9XX,2202-1981/1000-449,769-231,769-232,221-941/000-006,769-233,2624-1502,769-227,231-125,243,279-1XX,2002-1308,769-223,2002-1301,247,248,249,2857 SERIES,231-128,231-129,781 SERIES,232-376,231-562/001-000,2002-2662,2002-2661,250,793-472,252,787-1014,254,255-4XX,255,256,257,258,787-1017,2002-2667,2002-1411/1000-410,2002-1411/1000-411,2091-1638/024-000,787-1012,787-1011,2734-220,750-457/025-000,857-982,769-211,260,262,857-986,787-1002,231-100,769-207,769-201,787-1007,769-202,769-203,2002-2657,2010-5XX,2002-1211/1000-411,2002-1211/1000-410,787-1001,750-1505,750-1506,857-979,862-9615,750-1501,750-1502,231-216/026-000,2606 SERIES,750-1504,750-517/040-000,2002-2604,279,857-980,2202-1911,750-1516/040-000,857-981,787-2861/050-000,739-232,2002-2601,2002-2608,281-623/281-541,2002-2607,750-1516,862-9603,862-9605,741-2XX,862-9604,284-308,232-262/031-000,232-362,750-1515,745-582,280,281,282,283,284-301,284,284-302,285,745-585,2202-1904,288,2202-1902,289,2202-1901,2022-105/000-039/999-953,281-622/281-418,2759-204/261-1000,281-622/281-417,722-8XX,750-455/040-000,787-1021,787-1020,2202-1907,787-1022,232-332,2716-108,210-331/762-202,294,2716-102,862-9634,862-9633,2604-1102,812-XXX,855 SERIES,233-3XX,862-9625,750-626/040-000,2734-202/031-000,232-346,2604-1112,2002-2611,739-242,2002-2612,235-8XX,2002-1391,231-193,2002-24XX,2002-1394,2091-1372,231-195,2202-1611/1000-836,210-254,210-251,733-3XX,210-250,221-500/000-053,852-1816/010-000,2000-14XX,765-1XXX,2061-XXX,2091-1382,2004-1211/1000-410,2004-1211/1000-411,281-485,281-482,281-483,2006-1611/1000-542,2006-1611/1000-541,243-7XX,231-832/001-000,2002-8XX,739-212,2721-120/037-000,750-400,2002-1981/1000-429,750-402,750-401,216-5XX,231-632/018-000,750-404,750-403,750-406,750-405,750-636/000-700,281-492,281-490,2002-2611/1000-867,2716-158,739-202,750-637/000-002,750-637/000-001,750-637/000-004,2716-152,750-637/000-003,750-1500,2787-2346/000-070,750-473/005-000,2002-1981/1000-414,2002-1981/1000-413,757-0XX,770 SERIES,773-108/995-010,750-483/040-000,734-372/008-000,231-155,769-257,2003 SERIES,210-297,2616-3102/020-000,759-302/000-923,231-159,2734-202,231-160,231-161,2002-2672,745-655/006-000,750-494/000-001,2202-1981,282-687/999-950,750-494/000-005,2002-2671,221-500/000-006,231-602/019-000,2002-2678,2060-4

选型指南 - WAGO - 05/2022 PDF 英文下载

车规级超高压光耦填补国内空白，华联电子授权世强硬创平台一级分销

华联电子推出“车规级超高压光耦”——HSSR-61A0D-2，对标国际顶级光耦合器，填补国内空白，可应用于新能源汽车、光伏逆变器、储能以及工业智控等领域。

公司动态发布时间 : 2023-01-05

WAGO（万可）PLC接口模块选型指南

目录- PLC Interface solutions Introduction PLC cables Direct wiring Interface Optocoupler input interface Relay interface modules Analog signal interface modules PLC ACCESSORIES PLC interface module Selection Table

型号- 706-6001/100-XXXX,289-578,706-4756/409-....,289-577,289-576,289-575,706-4769/402-....,707-100/1000-263,704-4024,704-5234,704-5114,706-3033/103-XXXX,706-2500/602-....,706-4756/202-XXXX,706-4769/301-....,706-2300/302-XXXX,706-2500/501-....,706-3033/402-XXXX,706-3057/203-XXXX,706-100/525-XXXX,706-3057/500-....,706-3340/501-....,706-4769/408-XXXX,8002-100/1000-810,706-4756/501-XXXX,706-2300/104-XXXX,706-4756/410-....,706-3057/100-....,706-2300/300-1200,704-5003,704-5004,706-2500/305-XXXX,706-100/537-XXXX,706-150/310-....,706-4769/204-....,706-2500/204-XXXX,706-2300/403-XXXX,706-150/316-XXXX,706-2500/503-XXXX,706-5030/400-XXXX,704-4004,704-5214,704-5213,704-2063,706-5030/101-XXXX,704-2064,706-160/509-....,706-5030/501-XXXX,706-4756/412-XXXX,289-588,289-587,289-586,706-100/316-....,289-585,706-2300/201-XXXX,706-2300/601-XXXX,706-2300/500-XXXX,706-100/340-XXXX,704-2074,231-902,706-2300/100-XXXX,706-2500/301-XXXX,706-4769/200-....,706-4769/501-XXXX,706-2300/411-XXXX,704-2044,706-2400/405-XXXX,706-5030/302-XXXX,706-3340/201-XXXX,706-4769/300-XXXX,706-160/550-XXXX,706-2400/404-XXXX,706-4756/203-....,706-4756/503-....,706-3340/403-XXXX,706-4769/302-1200,706-100/320-XXXX,704-5324,706-3340/200-XXXX,704-5204,706-2500/302-XXXX,706-5030/202-XXXX,706-100/550-XXXX,706-3033/100-….,706-3340MOO-....,706-2300/406-XXXX,706-4756/301-....,704-2054,706-3057/402-....,706-4769/202-XXXX,706-4756/405-....,706-100/509-....,706-2500/601-XXXX,706-160/537-XXXX,706-3033/600-XXXX,706-3033/601-....,706-4756/406-....,706-2400/202-XXXX,706-3140/500-XXXX,706-150/326-....,704-2024,706-3057/200-XXXX,857-161,706-3033/400-....,857-167,706-4769/404-XXXX,706-2300/205-XXXX,706-3140/300-....,706-2400/501-XXXX,706-3340/500-XXXX,706-3340/404-....,706-4769/0302-XXXX,706-2400/300-XXXX,706-4769/502-XXXX,706-4756/404-XXXX,706-2300/407-XXXX,706-4769/406-....,704-2034,704-5303,704-3004,704-3003,706-4769/203-XXXX,857-152,706-3340/402-XXXX,706-3340/300-....,289-614,289-613,289-612,289-611,706-150/340-....,706-100/320-....,706-4769/102-....,706-4769/302-....,704-2003,788-154,706-3057/204-XXXX,788-156,706-2500/502-....,704-2004,706-100/650-....,706-4756/411-....,706-4769/401-....,706-3340/302-....,706-2300/402-XXXX,706-4756/302-XXXX,706-2300/602-XXXX,706-2300/301-XXXX,706-3340/304-....,706-3140/402-XXXX,706-4769/405-XXXX,704-2014,706-3057/202-XXXX,706-2300/701-XXXX,706-3140/501-XXXX,SERIES 705,SERIES 704,SERIES 706,706-4756/408-....,706-5030/100-XXXX,706-3140/501-....,706-3033/500-XXXX,706-4756/405-XXXX,706-3033/401-....,706-4769/300'.",706-2400/402-XXXX,706-100/637-....,704-2224,706-3057/400-XXXX,706-3057/301-....,706-3340/504-XXXX,706-100/314-XXXX,706-4769/405-....,706-160/525-....,706-4756/300-....,706-100/310-....,706-3340/201-....,706-7753/300-1200,706-4756/102-....,706-3140/301-1200,706-3033/601-XXXX,706-160/537-....,706-3057/600-....,706-3057/200-....,706-160/550-....,706-4756/500-XXXX,706-3033/102-....,289-619,289-618,706-3340/500-....,289-617,706-100/609-....,289-616,289-615,706-2500/300-XXXX,706-3033/104-....,706-5030/402-1200,706-4769/101-XXXX,706-4769/201-XXXX,788-195,706-2300/409-XXXX,706-3340/301-XXXX,706-4769/400-XXXX,706-4769/500-XXXX,706-4756/410-XXXX,706-7753/301-XXXX,706-4756/403-....,706-4769/408-....,706-4756/202-....,706-100/350-XXXX,706-4756/501-....,706-150/334-....,706-100/515-XXXX,706-2300/101-....,706-4769/402-XXXX,706-5030/303-XXXX,706-3340/502-XXXX,706-5030/200-XXXX,706-3033/202-….,706-3033/501-....,706-3140/400-XXXX,706-3140/401-....,706-2300/306-XXXX,706-3057/300-XXXX,706-4756/207-....,706-2300/105-XXXX,706-3140/302-XXXX,706-4769/403-....,706-2300/404-XXXX,706-2500/202-XXXX,706-2200/700-XXXX,706-150/314-....,706-2500/501-XXXX,706-4756/407-XXXX,706-4769/202-....,706-2500/402-....,706-4756/412-....,706-2300/102-XXXX,706-4769/501-....,706-2200/700-....,706-3340/402-....,706-3033/202-XXXX,706-4756/402-XXXX,706-2300/502-XXXX,706-150/314-XXXX,706-4756/301-XXXX,706-2300/304-XXXX,706-3340/301-....,706-2500/600-....,706-3033/501-XXXX,706-3057/300-....,706-160/509-XXXX,706-6001/300-XXXX,706-3340/200-....,706-4769/204-XXXX,706-100/350-….,706-3033/400-XXXX,706-3057/201-XXXX,706-3140/300-XXXX,706-100/537-....,706-150/310-XXXX,706-3057/300-1200,706-4769/503-XXXX,706-4769/404-....,706-2400/201-XXXX,704-9014,706-4756/406-XXXX,706-3033/600-....,706-4756/407-....,706-3057/500-XXXX,706-3340/404-XXXX,706-3057/100-XXXX,706-3033/200-....,706-2300/405-XXXX,706-3140/500-....,706-2300/207-XXXX,706-2400/500-XXXX,706-3340/300-XXXX,706-160/515-....,706-2400/100-XXXX,706-3057/302-XXXX,706-3057/203-....,706-3340/303-XXXX,706-150/326-XXXX,706-4756/503-XXXX,706-100 / 550-....,706-4769/406-XXXX,704-9027,706-3057/601-XXXX,706-3140/401-XXXX,706-3140/302-....,706-2300/408-XXXX,706-4769/301-XXXX,SERIES 210,706-100/316-XXXX,706-7753/602-XXXX,706-100/326-....,706-2300/410-XXXX,706-4769/600-XXXX,706-3340/401-XXXX,706-3340/501-XXXX,706-150/316-....,706-4769/601-XXXX,706-4756/409-XXXX,704-8023,706-3033/203-....,706-2400/403-XXXX,706-5030/204-XXXX,706-2500/102-XXXX,706-4769/100

选型指南 - WAGO - 2021 PDF 英文下载