满足多种供电输入的大功率电源设计

Design of High Power Supply for Various Power Supply Input

摘要:

大功率电台的要求越来越高了,在同等发射功率下要求体积越来越小,本文基于1kW短波电台供电设计了一款效率高、功率密度大的供电单元。通过芯片C8051F330能实现与上位机串口通信,能控制电源的启动以及监测各路直流输出的电压、电流大小和整机的温度,对末级功放单元的供电可以实现阶梯式八级电压的调整。能自动识别交流输入的欠压、过压,可以有效的保护整机电源不受损伤。具有输入过欠压保护,输出过压保护、输出过流保护、输出短路保护和过温保护。

Abstract:

The requirement of high-power radio is getting higher and higher, and it requires smaller and smaller volume under the same transmitting power. This paper is based on the power supply of 1kW short-wave radio station A power supply unit with high efficiency and high power density is designed. Through the chip C8051F330 can realize the communication with the upper computer serial port, can control the power supply,It also monitors the output voltage and current of each DIRECT current and the temperature of the whole machine, and can realize the step-type eight-stage voltage for the power supply of the final power amplifier unit,The adjustment. Can automatically identify ac input undervoltage, overvoltage, can effectively protect the power supply from damage. With input undervoltage protection, input Overvoltage protection, output overcurrent protection, output short circuit protection and overtemperature protection。