摘要
介绍了基于87C52微控制器和SA8381型PWM产生芯片实现的SPWM型单相逆变电源的全数字化控制系 统。详细说明了该逆变电源系统的原理构成和主电路原理。简要说明了MITEL公司的新型SA8381带微处理器接口的可编 程SPWM波形发生器的引脚功能、内部框图及工作原理,说明了他的技术特点、应用范围等,并给出了逆变电源系统程序 框图及控制回路程序流程,软件编程情况。
The article introduces full digital control system of single phase inverter type SPWM based on microcontroller 87C52 and PWM producing chip type SA8381, explains the principle construction and main circuit diagram of the inverter in detail. It also states leading foot function, internal block diagram and operating principle of programmable SPWM waveform generator of new type SA8381 from MITEL with microprocessor parallel interface, explains its technical specification, application scope, etc. Progamme block diagram and flowdiagram of control circuit,software programme conditions are given.
出处
《现代电子技术》
2005年第7期65-68,共4页
Modern Electronics Technique
