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8098单片机及其应用(十二)──直流电机脉宽调速系统刘复华(武汉工业大学.430070)1.前言采用脉冲宽度调制(PWM)方法对直流电动机转速进行控制,是近年来迅速发展的一种新技术。鉴于可控硅整流器(SCR)的纯滞后特性和容易引起电网波形畸变,对于...
8098 Single Chip Microcomputer and Its Application (12) ─ ─ DC Motor PWM System Liu Fuhua (Wuhan University of Technology .430070) 1. Preface The use of pulse width modulation (PWM) method of DC motor speed control, is a rapid development in recent years, a new technology. Due to the pure hysteresis characteristics of thyristor (SCR) and easy to cause grid waveform distortion, for ...