中波发射机输出监测板工作原理浅析  

Analysis of The Working Principle of The Output Monitoring Board of The Medium Wave AM Transmitter

作　　者：周嘉镇 ZHOU Jiazhen(Shanwei Medium Wave Broadcast Station,Shanwei 516400,China)

机构地区：[1]广东省汕尾中波转播台,广东汕尾516400

出　　处：《数字通信世界》2023年第12期66-68,共3页Digital Communication World

摘　　要：文章阐述了中波广播发射机输出监测板的工作原理、取样电压和取样电流及VSWR电路,以及入射功率和输出功率监测,从而为整机稳定正常运行提供保护。This paper introduces the output monitoring board of the medium-wave broadcast transmitter,describes in detail the working principle of the modified board,and realizes the monitoring of incident power and output power through the sampling voltage,sampling current and VSWR circuit,so as to provide protection for the stable and normal operation of the whole machine.

关 键 词：VSWR 相位检测器 包络检波器 定向耦合器 

分 类 号：TN838[电子电信—信息与通信工程] TN93