基于单片机和EPLD的开关电源PWM移相控制的设计

Design of Switching Power Supply PWM Phase-shift Controller Based on Single-chip Microcomputer and EPLD

本文采用可擦除可编程逻辑器件(EPLD)和16位单片机80C196KC相结合的方法设计了一种移相PWM变换器,电路简单, 设计灵活,控制精度高,适合于低电压大电流的大功率开关电源。

This paper designs a phase-shift PWM inverter using EPLD and 80C196KC. The control scheme takes advantages of simple hardware design and software flexibility. It＇s precision is very high. The method is suitable for the high-power switching power supply with high current and low voltage.