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Author Topic: PWM  (Read 1859 times)

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Offline TorqueRangerTopic starter

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PWM
« on: December 07, 2012, 02:21:12 am »
 I want to control a 1ST PC CORP. AFC1212DE-PWM but not sure how ???? Are there any simply pwm that can handle 12v and 3 amps or is there a better way ???? I could apply full power but don't want it to take off and be loud as hell ... Could I just use  lower voltage with a 4 wire pwm fan???
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Online Psi

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Re: PWM
« Reply #1 on: December 07, 2012, 03:23:41 am »
If you power a PC fan from the 5V supply instead of the 12V supply they are much quieter but still move a reasonable amount of air.
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Offline T4P

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Re: PWM
« Reply #2 on: December 07, 2012, 05:42:54 pm »
Is it a 4 wire fan? If it is just clock PWM without a cap in between from a 555 PWM circuit on the PWM pin, problem solved i guess
It's usually connected to the switching mosfet/transistor in the fan (I doubt they would use a transistor on the AFC but surely i have a few FFBs lying around)
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