In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.

或者换句话说，脉宽调制是一种调制技术，为发电可变脉冲宽度为代表的幅值输入模拟信号或波。

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If the modulation rate is high, it is possible to smooth out the pulse train using passive electronic filters and recover an average analog wave form.

如果调制率高，是有可能顺利进行，脉冲列车使用被动电子过滤器和收回平均模拟波形。

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Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).

脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。

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