PIC单片机可用，数字正弦波单相逆变器，控制为闭环SPWM双极性,PIC microcontrollers are available, bipolar digital sine wave single-phase inverter control for closed-loop SPWM

基于2812的三相全桥的SPWM逆变器程序，开环 设计，输出50Hz正弦波，调制比0.8，调制频率6150HZ-2812 three-phase full-bridge SPWM Inverter-based program, the open-loop design, the output 50Hz sine wave modulation ratio of 0.8, the modulation frequency 6150HZ

对电机进行基于spwm的变频调速系统，来实现对异步交流电动机的转速调整与三相电流调整(SPWM-based variable frequency speed regulation system for motor)