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Old 09-14-2010, 07:12 PM
nogas1 nogas1 is offline
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Default PWM frequency

300Amp 48v 4khz controller, for ev can any 1 tell me if 4khz is ok (i dont mind the ween).

Is there any reason why i should not continue operate my ev motor at 4khz.

Thanks.

Last edited by nogas1; 09-15-2010 at 04:58 PM.
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  #2  
Old 09-15-2010, 09:36 PM
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EVfun EVfun is offline
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Default Re: PWM frequency

I doubt there are many here that can field the question with the knowledge and experience to answer with authority. I can say that controllers in the past have operated around that frequency and even lower. It should be fine to do that, but the motor will whine.
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Old 09-16-2010, 04:51 PM
nogas1 nogas1 is offline
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Default Re: PWM frequency

Thank u EVfun, u hav put my mind at ezz.
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