Hi, I am looking for a simple straight forward way to control the voltage to a PC fan with a 12VDC brush motor. Would like to be able to turn the fan on low speed (5V input) with Arduino pin set to low and high speed (12V) when the pin goes high... Thanks for the input guys and sorry for being such…

12V PC fan voltage control

system November 15, 2012, 12:02am 6

That's my thoughts... Lower the PWM freq. or I might use a different way.

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