智能双AC/DC变换器供电系统的两种设计方案

Two Designs for the Intelligent Double AC/DC Convertor Power Supply System

针对双AC/DC变换器现有的热备份、冷备份连接方式存在的问题,提出了智能双AC/DC变换器供电系统的两种新的设计方案——数字逻辑控制电路和微控制器控制系统,实现了冷备份电源的自动切换,很好的解决了直流电源持续供电的问题。

There are problems in the hot standby and cold standby connective mode of the double AC/DC convertor. In order to solve these problems, this paper introduces two kinds of new designs for the intelligent double AC/DC convertor power supply system. One is based on the digital logic control circuit, and the other is based on a micro controller unit （MCU）. The system can implement automatic switching of the cold standby power supply to ensure uninterruptible power supply.