摘要
电台电源综合监测保护设计,需要满足常规的过流保护、过压保护以及过流保护。在满足保护条件时,要求能自动快速切断电源,保护电台电源以及电台的线路板。描述了通过常见的保险丝、稳压二极管、运放、功率MOS管等低成本器件来实现电台电源过流、过压、欠压的保护性设计技术。整个综合监测保护系统所使用的基准电压和工作电压也采用极为常见稳压二极管和SMPS电源来实现。最后结合实际应用,介绍该保护设计的实现及其使用效果。
Protection design of power supply for radio should satisfy the requirements of normal overcurrent protection,overvoltage protection and undervotlage protection.It is required to automatically cut off power and protect power supply and PCB of the radio when meeting protection conditions.This article describes protection design technology based on normal zener diode,fuse,amplifier,power MOSFET and so on.The standard voltage and operating voltage used by power-supply protection system radio are based on normal zener diode and SMPS.Finally in combination of actual application,this article discusses implementations and effects of the proposed protection design.
出处
《通信技术》
2013年第8期156-158,共3页
Communications Technology
