摘要
介绍一种正弦波脉宽调制型（ＳＰＷＭ）单相空调变换器的工作原理、电路组成及恒温频率控制方法。该变换器的使用不改变原空调器的主要线路，内部采用功率ＭＯＳＦＥＴ作为高速开关元件，通过对空调压缩机的无级变速，完成单相空调器的闭环恒温调节，舒适节能。
This paper deals with the operation principle of SPWM single phase air conditioner converter, the circuit make up and thermostatic frequency control method. The application of converter does not change the original main circuit of the air conditioner. With built in power MOSFET as quick switchgear and by means of compressor's stepless variable drive, the closed loop thermostatic adjustment for single phase air conditioner is achieved, featuring with comfort, energy saving and easy operation.
