I'm looking for a PWM to DC converter circuit

Discussion in 'The Projects Forum' started by okitai, Mar 10, 2008.

  1. okitai

    Thread Starter New Member

    Mar 4, 2008
    1
    0
    Hello all,
    I'm sure that someone already created this. Please direct my to the correct place.
    I want to build a PWM converter for my computer's fan. The input is a 4 wire like this http://www.pavouk.org/hw/fan/en_fan4wire.html (on the motherboard) and the output is to a 3 wire fan. The idea is the the PWM (the 4th wire) will be converted into a variable voltage on th 3rd wire. I did find a "company" that sells somthing like it: http://www.paqt.co.uk/docs/PaQ_PWM.pdf but I would like to make one myself.

    Thank you a lot.
     
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