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增减计数和单增计数产生的PWM波各有什么优缺点



看很多做电机驱动的都使用增减计数产生关于周期中点对称的PWM波,如果采用连续增计数产生非对称PWM有什么缺点?看了下每个周期开关次数是一样的,还有其它什么地方有差别吗?