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pwm
- PWM脉宽调制,是靠改变脉冲宽度来控制输出电压,通过改变周期来控制其输出频率。而输出频率的变化可通过改变此脉冲的调制周期来实现。-PWM pulse width modulation, the pulse width is controlled by changing the output voltage is controlled by changing its output frequency cycle. The output frequency can be changed by cha