Question about this "trick"

Discussion in 'General Electronics Chat' started by Jassper, Oct 17, 2008.

  1. Jassper

    Thread Starter Active Member

    Sep 24, 2008
  2. SgtWookie


    Jul 17, 2007
    Don't modify the power supply's harness. You can get extenders and "Y" splitters, and make the modificaiton on one of those; make sure you label the modified extender/"Y" splitter. Otherwise, if you forget and plug in something else later, you could wind up damaging lots of stuff.

    If the fan plugs into the motherboard, don't attempt this mod.
  3. mik3

    Senior Member

    Feb 4, 2008
    I dont know whats the internal circuitry of the power supply exactly so i cant guaranty that is not going to cause problems. Also, i dont see the reason to run the fan at a lower voltage, you just reduce the airflow through the PC case and increase its temperature.
  4. Jassper

    Thread Starter Active Member

    Sep 24, 2008
    Well, it's just something I stumbled upon while looking for a very simple PWM for a 6 volt DC motor, it draws less than an amp, and the manufacture of the motor suggested that I use my 12 volt that is available and PWM it so the rms is about 6 or 7 volts.

    I have 12 volts and 5 volts, so I was wondering about this little trick, but I am not sure what might happen to the other components I am powering with the 5 volt side which are 4 0-1 psi transducers.

    I found your post, SgtWookie, on the PWM circuit and I might go with that one.

    Personally, I wouldn't do this to my Computers.