In the PWM control system, the algorithm of SPWM is implemented by using DSP, and the multi-channel PWM waveform generator is constructed by using CPLD.

• 采用数字信号处理器DSP实现正弦脉宽调制算法，并利用复杂逻辑可编程逻辑器件CPLD来构造多路PWM信号发生器的方法实现了整个系统的PWM控制。