光纤隔离驱动在电磁发射机中的应用  

Application of Optical Fiber Isolation Drive in Electromagnetic Transmitter

作　　者：赵俊丽[1] 付志红[1] 谢品芳[1] 

机构地区：[1]重庆大学,四川重庆400044

出　　处：《电力电子技术》2008年第7期53-54,75,共3页Power Electronics

基　　金：国家自然科学基金项目(50577071);重庆市自然科学基金项目(2006BB2211)~~

摘　　要：为了实现对电磁发射机中功率器件的高精度控制,提出了采用光纤连接的方法实现功率驱动PWM信号的传送。设计了由HFBR-1527发送器、HFBR-2526接收器和高速驱动芯片TC4452组成的高速光纤隔离驱动电路。实验结果表明,该光纤驱动电路能够实现PWM信号的精确传送,延迟时间在100ns以内,抗干扰能力强。该高速光纤隔离驱动电路已经在电磁发射机的开发中得到应用。To control the power device accurately,a method using optical fiber link is proposed to transmit the PWM signals.A high-speed optical isolated drive circuit which is composed by HFBR-1527,HFBR-2526 and TC4452 is developed.Experiment has proved the PWM signals can be transferred precisely,delay is less than 100 ns and EMI immunity is im-proved.This circuit has been applied in development of Electromagnetic transmitter.

关 键 词：发射机 脉宽调制 驱动/光纤连接 发送器 接收器 

分 类 号：TN838[电子电信—信息与通信工程]