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- 2012-11-26
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Description: PWM is pulse width modulation control. By controlling the electrical voltage pulse width, you can change its RMS voltage. So that we can change the speed. Fig waveform before and after the part of some form is the same cycle, we adjust its duty cycle (figure tH1 does not mean tH2 ). Obviously the first part of the figure of the voltage waveform is greater than the latter part of RMS voltage waveform RMS, that is, the former driver of the motor faster than the latter' s great.
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- [c51pwm] - 51 single-chip PWM output signal, a clea
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MotorSpeedControl.doc
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