智能型节能交流接触器控制器设计
周小娜,陈志英,苏焕先,许燕标,王竹兴

Design of Intelligent Energy-Saving Controller for AC Contactor
Xiaona Zhou,Zhiying Chen,Huanxian Su,Yanbiao Xu,Zhuxing Wang
图2 PWM 控制电路原理图
Fig.2 Drive circuit diagram of PWM