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21ic
24 天
一文看懂PWM控制原理及电路应用详解
[导读]PWM控制技术就是对脉冲宽度进行调制的技术。即通过对一系列的脉冲宽度进行调制,来等效地获得所需要的波形。采样控制理论中有一个重要结论:冲量相等而形状不同的窄脉冲加在具有惯性的环节上时,其效果基本相同。 PWM(脉冲宽度调制)是用脉冲来输出 ...
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