用于DC/DC全桥变换器的全数字式PWM控制器

A Novel EPROM-based Digital PWM Controller for Full Bridge DC/DC Converters

讨论了一种基于EPROM存储的全数字式高频PWM调制器。该调制器占用微机时间很少 ,控制精度较高 ,电路结构简单 ,实现方便 ,适用于全桥DC/DC变换器各种控制方式。对该调制器的基本原理进行了分析 ,制做了一台实验样机。

A novel EPROMbased digital PWM controller is discussed in this paper.This PWM controller has the following advantages such as occupying only a little time of microcomputer,having higher control precision and simpler circuit,so it fit to various control strategies for full bridge DC/DC converters.The fundamemtal principle of this controller is analyzed in this paper in detail.A prototype based on the above principle is implemented.Waveformes demonstrate the feasibility of the new digital PWM controller.