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单极性脉宽调制
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单极性脉宽调制
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unipolar pulse width modulation
单极性脉宽调制
在调制信号的半个周期内,载波只在正极性或负极性一种极性范围内变化,所得到的脉宽调制(pulse-width modulation;PWM)波形也只在单个极性范围变化的控制方式。
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