光电耦合器典型应用电路剖析

An anatomy for typically applied circuits of photo couplers

剖析了光电耦合器在电气绝缘、信号隔离、级间隔离、电平转换、驱动电路、脉冲放大电路、斩波器、固态继电器、高压控制以及电平匹配等方面应用电路工作特点;总结了光电耦合器应用电路的组成结构及基本单元;指出了光电耦合器应用电路中面临的问题,提出了解决问题的措施和办法。

The working trait of applied circuits for photocouplers in is analyzed in this article.The consti-tute structure and basic unit of photocouplers applied circuits are summarized.The problems faced in ap-plication circuits for photcouplers are pointed out,and some measure and method are brought forward to solve the problems.