Hi. I think, I've read that the ARDUINO's PWM frequency was about 490-500Hz. Somebody told me this was a quite low frequency for DC motor and should be like 20kHz instead. What do you think ?

PWM frequency

Other Hardware Motors, Mechanics, Power and CNC

sdturner May 22, 2012, 6:00pm 2

For a regular DC brush motor there's no need for faster PWM frequency. I know of several production automotive applications that drive motors at 50 or 100 Hz.

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PWM frequency

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