线性光隔离电路设计及其在程控电压源中应用  

Design of Linear Optically Coupled Isolation Circuit and its Application in Programmable Controlled Voltage Source

作　　者：张永良[1] 李波[1] 

机构地区：[1]武汉理工大学,湖北武汉430070

出　　处：《电力电子技术》2005年第3期118-119,共2页Power Electronics

摘　　要：线性光隔离电路主要用于隔离模拟信号的传送。该线性光隔离电路采用普通光电耦合器和经典差分放大电路设计而成,并应用于汽车点火线圈的程控电压源中,实现了PC机数字信号输出与负载模拟信号输入之间的隔离,得到0～5V数字电压转换0～12V模拟电压的线性效果。Linear optically coupled isolation circuit was mainly used in isolation of analog signal transmission. This circuit adopted common opto-electronic coupler and classical difference-amplifying circuit,and it was used in the cell-type voltage source of the car′s sparking coil.It implemented the isolation between the output of PC′s digit signal and the input of charge′s analog signal,and got linear result of transition from 0～5V-digit voltage to 0～12V-analog voltage.

关 键 词：线性 程序控制/光隔离电路 电压源 

分 类 号：TN364[电子电信—物理电子学]