happy building.http://www.wikihow.com/Convert-a-Computer-...ab-Power-Supply
Full Version: Turning a ATX Power supply into a pj power supply
Here is a great tutorial on modifying a ATX PSU, Be carefull with this you could hurt yourself BADLY. For a PJ we only need to worry about gnd, +12, +5 and if you keep a fan attached you dont need to use the HUGE resistor happy building.
http://www.wikihow.com/Convert-a-Computer-...ab-Power-Supply
happy building.http://www.wikihow.com/Convert-a-Computer-...ab-Power-Supply
Great link - thanks for sharing.
It's really a lot simpler than all that.
If you want to do it quick all you have to do is short pins 13 and 14 on the ATX connector which fools the Power Supply into turning on,
Then just cut off one of the hard drive connectors and you have +12v at whatever Amps the 12v rail puts out (typically 5A-15A) and +5v also.
The yellow wire is 12v and the red wire is 5v and the blacks are ground.
Been using a nice 400watt PSU like this for months now.
If you want to do it quick all you have to do is short pins 13 and 14 on the ATX connector which fools the Power Supply into turning on,
Then just cut off one of the hard drive connectors and you have +12v at whatever Amps the 12v rail puts out (typically 5A-15A) and +5v also.
The yellow wire is 12v and the red wire is 5v and the blacks are ground.
Been using a nice 400watt PSU like this for months now.
for just a PJ yes, for my PJ possibly not. This tutorial is for building a high quality, short resistant, re-usable bench power supply.
For some youre right, but I dont like to take the cheap way out
For some youre right, but I dont like to take the cheap way out
I'm incorporating this into my pj, one supply for the fans lcd etc, less clutter in the case. The ballast is mounted to the cross brace of the ceiling mount with the wires being fed in to the enclosure - not to mobile however I don't plan on lugging this around like a suit case ( great folded idea btw)
As it sit now it in R&D phase and the acquisition of a router has allowed me to get a bit more creative with the enclosure. The psu also has a toggle on the back which gives me an extra option or 2.
want to thanks TheTrustedOne for the heads up on this last night as well. Helped a ton.
As it sit now it in R&D phase and the acquisition of a router has allowed me to get a bit more creative with the enclosure. The psu also has a toggle on the back which gives me an extra option or 2.
want to thanks TheTrustedOne for the heads up on this last night as well. Helped a ton.
QUOTE (insertname @ Apr 12 2008, 04:00 PM) 
I'm incorporating this into my pj, one supply for the fans lcd etc, less clutter in the case. The ballast is mounted to the cross brace of the ceiling mount with the wires being fed in to the enclosure - not to mobile however I don't plan on lugging this around like a suit case ( great folded idea btw)
As it sit now it in R&D phase and the acquisition of a router has allowed me to get a bit more creative with the enclosure. The psu also has a toggle on the back which gives me an extra option or 2.
want to thanks TheTrustedOne for the heads up on this last night as well. Helped a ton.
As it sit now it in R&D phase and the acquisition of a router has allowed me to get a bit more creative with the enclosure. The psu also has a toggle on the back which gives me an extra option or 2.
want to thanks TheTrustedOne for the heads up on this last night as well. Helped a ton.
My Pleasure man
Excellent project many thanks. I have used a computer PS to power a 'portable fridge' the one that you can plug into the car's cigarette lighter. They sell an AC adapter but they were too expensive and I simply used an old PC PS with an appropriate 12v plug grafted onto the red and black wires. A neat socket in the side panel completed the project. All for around $5 as I had a few old PSs lying around. They can also be used to power car type amps if you want to use then in the house.
QUOTE (Bluedog @ Apr 12 2008, 07:27 PM)
Excellent project many thanks. I have used a computer PS to power a 'portable fridge' the one that you can plug into the car's cigarette lighter. They sell an AC adapter but they were too expensive and I simply used an old PC PS with an appropriate 12v plug grafted onto the red and black wires. A neat socket in the side panel completed the project. All for around $5 as I had a few old PSs lying around. They can also be used to power car type amps if you want to use then in the house.
What kind of duration can you power a car stereo before it gets too hot and dies from the load?
It obviously would be really "clean" power but the voltage is off by about 2v. Cars go at ~14.5v and peak at high amps.
I guess you would know better than me since you use this setup but I am interested in the result. Anything to look out for?
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