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。
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。
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
脉冲宽度调制或PWM，是通过数字均值获得模拟结果的技术。
The principle of converting analog signals to digital signals bacame popular with the introduction of pulse code modulation ;
随着脉冲编码调制技术的出现，把模拟信号转换为数字信号的原理得到广泛应用；
I knew I would probably have to use some analog hardware to output the audio and video unless I used pulse-width modulation, in which case I would only need a low-pass filter.
我知道假如使用PWM(脉宽调制)模拟部分只需要做低通滤波就行了，否则就得全用模拟器件完成音频和视频。
I knew I would probably have to use some analog hardware to output the audio and video unless I used pulse-width modulation, in which case I would only need a low-pass filter.
我知道假如使用PWM(脉宽调制)模拟部分只需要做低通滤波就行了，否则就得全用模拟器件完成音频和视频。
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