一种实用的单相交流脉宽调压电路

A practical circuit of single-phase AC pulse width adjustable voltage

提出了一种针对单相交流负载进行的交流调压电路———脉宽调压电路 ,此调压电路使用一只自关断型电力电子器件对单相交流负载上的电压进行脉宽调压控制。分析了工作原理 ,给出了实验结果。结果表明 :对单相负载采用此方法调压可使负载上的电压谐波分量小 ,系统响应快 ,电路结构简单。适用于单相感应电动机调压调速。

The pulse_width adjustable_voltage AC circuitry which aims at single phase load using a switchable power elecˉtronic components is presented,analyses the working principle and provides the experimental results.Applying the method to single phase load makes circuit of systemsimple,has a little voltage harmonic component and responds quickly.It can be applied to voltage and speed_adjustment with single phase induction motor,temperature monitor of electric stove with single phase resistance of stove and so on.