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Will there ever be a Poweradjust with 4 pin PWM?

JasonMorris

Full Member

Will there ever be a Poweradjust with 4 pin PWM?

vendredi 18 novembre 2016, 17:05

Would be nice :)

Pilo

Senior Member

dimanche 20 novembre 2016, 20:26

The problem here is, PWM (short for Pulse-width modulation) isn't about the adjustment of power, for instance from zero to twelve Volts, but about frequency modulation.
PWM fans work with constant voltage of 12 Volts and there is a circuit in the PWM fan that switches that 12 Volts constantly on and off, regulated by the PWM signal.
I don't know exactly how it works, but I believe, the higher the PWM fequency, the higher the RPM of the fan, because the fan motor gets more pushes with 12V per minute.
It's like trying to spin a bicycle wheel with your hand, the moreoften you push/pull the faster the wheel spins.
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Railgun

Full Member

dimanche 20 novembre 2016, 23:50

Actually, the problem is there is no PA that does PWM. Explanation of what it is/does is way OT.

Shoggy

Sven - Admin

lundi 21 novembre 2016, 09:49

A poweradjust with 4-pin PWM makes no sense since the poweradjust is about an analog voltage control while PWM does not require anything of that. It is like asking to use an airplane for the highway :D

It will be more likely to have something else with several PWM ports since it would not change too much on the price.

JasonMorris

Full Member

lundi 21 novembre 2016, 21:03

Thanks for the reply they make sense.

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