Hi all members,

I want to use a smps to power a large display. The display use 12v@4Amps.Can anybody please tell me how to turn on the smps without a pc. Which wires on the smps do i need to connect to start the smps and also, is there some more things to do to use the smps as a psu.

Thanks for all your help,
Soda

 

http://www.bgmicro.com/index.asp?PageAction=VIEWPROD&ProdID=12940

24VDC at 6.5A for $14.95.

You didn't say what part of the world you're in (a mistake), this is located in Garland TX. B.G.Micro is an internet store, but they will accept walk ins.

 

I live in South Africa and thanks for the advise.I would still wanted to know what terminals on a computer supply you have to bridge to enable it to start on it's own. SA supply is 240vac.

Thanks
Soda

 

Sorry about that, I saw 12 and read 24

Have you read the Wikipedia entry on PSUs? I've gone there several times, it definitely has enough information to do what you want.

http://en.wikipedia.org/wiki/Power_Supply_Unit_(Computer)

 

soda,
To start the PC PSU without the PC, you need to connect the Enable Wire (the green one, usually, mind it, there should be only one green wire) to Ground (the black ones, connect the green one to any one black one). Done. Your power supply is ready to go.

 

If it's an ATX form factor computer power supply, you will also need a load on the 5v supply in order to get good regulation on the other voltages.

This article will help you get going:
http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply

 

Bill, Tahmid and Sgt Wookie, many thanks for all the help. You all did a grate job in helping me. I know now, i will be able to do it.

Soda