I am using a PC power supply to power my electronic application. If I use the +5 V output that does not run when the Power supply's fan is on, my wireless network works perfectly. As soon as I turn on the other voltages and the fan in the power supply, I get noise spikes on my +5 V supply and I have no wireless communication. I need +12 V to run other periferials so I need to have my wireless working when the PC power supply's fan is on. I have designed my casing to have the PC power supply so I would very much like to use it so I don't have to redesign everything. I am on a tight time crunch to finish my project.
I was wondering if anyone knew some good solutions. I have used a 220 nf capacitor on the positive and negative line to try to clean up the noise. It helps a bit but I still need a better filtering system. My electronics are on more than one board and my wireless transiever is relatively far from power supply and the Main board in wiring.
Any help would be very appreciated.
Jessica
hotmail.com