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Yo-DUH_87 · 01-26-2003, 01:40 AM

Ok, I must admit that I stumbled on this thread late

I am currently working on a project that was going to take quite a lot of power, about 30-40 A at 12 VDC (not anything computer/cooling related, so you TEC junkies can pull your jaws of the floor

). I looked into buiding a PSU, but that was way too expencive, so I went and bought 2 400 W PSUs ($17 per unit). I built a circut to hook them in parallel with, and it can be done!

However, my implimentation of the idea was not entirely successful, as I ordered the wrong parts

I got 9.5 VDC in parallel with both supplys. This was due to having the wrong parts

I would have gotten the full 12 (possibly a little lower, but not significantly), if I'd been more careful in ordering.

I abandoned the idea, though, as the computer PSUs were wasteful (read: power hungry), and took up alot of space. I just ordered the parts to build a 12v supply, which should be more efficent (since I only need the 12 VDC, not all the 5, 3.3, and others a computer PSU puts out).

If the information would be useful to you, I would be happy to attempt testing the theroy further...

01-26-2003, 01:40 AM	#60
Yo-DUH_87 Cooling Savant Join Date: Mar 2002 Location: Oregon, USA Posts: 230	Ok, I must admit that I stumbled on this thread late I am currently working on a project that was going to take quite a lot of power, about 30-40 A at 12 VDC (not anything computer/cooling related, so you TEC junkies can pull your jaws of the floor ). I looked into buiding a PSU, but that was way too expencive, so I went and bought 2 400 W PSUs ($17 per unit). I built a circut to hook them in parallel with, and it can be done! However, my implimentation of the idea was not entirely successful, as I ordered the wrong parts I got 9.5 VDC in parallel with both supplys. This was due to having the wrong parts I would have gotten the full 12 (possibly a little lower, but not significantly), if I'd been more careful in ordering. I abandoned the idea, though, as the computer PSUs were wasteful (read: power hungry), and took up alot of space. I just ordered the parts to build a 12v supply, which should be more efficent (since I only need the 12 VDC, not all the 5, 3.3, and others a computer PSU puts out). If the information would be useful to you, I would be happy to attempt testing the theroy further... __________________ Signing out... Yo-DUH_87 If it works, fix it until it's broke! Then, after it's broke, add duct tape! Affordable webhosting!