高频地波雷达发射机保护电路的设计  

Protection Circuit Design of HF Ground Wave Radar Transmitter

作　　者：张博[1] 石振华[1] 

机构地区：[1]武汉大学电子信息学院电波传播研究室,武汉430079

出　　处：《现代雷达》2006年第5期79-82,86,共5页Modern Radar

基　　金：国家863计划资助项目(863-818-01-02)

摘　　要：用于近程海洋探测的高频地波雷达发射机设计输出功率为200 W,因为是大功率器件,而且需要全天候不间断正常工作,所以要设计相应的保护电路。包括对极端情况下的过流、过压、过激励保护和过温保护。对前面几种情况下的保护主要采用负反馈的思想,过温保护利用温度开关及散热装置来实现。The transmitter output power of HF ground wave radar for short range ocean surveillance is 200 W. As the transmitter is a high power device and it should run safely and continuously in all weather, so it＇s necessary to design a set of protective circuitw which can keep the radar safe at the extreme conditions of over-currentw over-vohagew over-driving and over-temper- ature. Feedback concept is used in the protection circuit for the first three cases. For the condition of over-temperature, a temperature switch and heat dissipation equipment are utilized to protect the radar from destroying.

关 键 词：高频地波雷达 发射机 保护电路 散热装置 

分 类 号：TN957.3[电子电信—信号与信息处理]