Hi team,
DRV10970 has a minimum input PWM frequency that is 20kHz.
Why is there a lower limit on it?
Sincerely.
Kengo.
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Hello Kengo-san,
Thank you for posting to the MD forum. I will respond to your question a little later today.
Best,
Isaac
Hello Kengo-san,
Thank you for your patience, PWM range on the DRV10970 is actually from 15kHz to 100kHz. The device uses PWM duty cycle in order to obtain speed, I believe the limitation comes from the filtering done to the PWM signal in order to extract the duty cycle of the signal.
Best,
Isaac