How to make PC power supply with voltage control - Electronic Circuits Projects Diagrams Free

Fachri · 9th January 2004, 05:28 PM

Does anyone know or have the diagram about how to make PC power supply which has dedicated circuit for +5, +3,3 and +12...
and which also have voltage control for each line (+5 +3,3 +12)

As far as I know,there's only one brand of PC powersupply which have that kind of specification, which is ANTEC TrueControl....

If anyone know the board diagram how to make that kind of power supply unit...your help would be greatly appreciated...

Rescyou · 9th January 2004, 11:53 PM

You usually just have to throw a power resistor on one of the +5v lines so there is always a load on it and the rest should function as normal.

Have a look at this:

http://web2.murraystate.edu/andy.bat...owersupply.htm

If you want voltages other than what it is putting out you will have to make an adjustable regulator of some sort. I've used LM317T regulators a lot on they are pretty easy to hook up. Have a look for the datasheet of one and it will give you the schematics.

Preformed Google Search for (lm317t):

http://www.google.ca/search?q=lm317t&hl=en

Preformed google Search for: ("pc power supply" resistor)

http://www.google.ca/search?hl=en&ie...resistor&meta=

Resc.

Resc.

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9th January 2004, 05:28 PM	(permalink)
Fachri	How to make PC power supply with voltage control Does anyone know or have the diagram about how to make PC power supply which has dedicated circuit for +5, +3,3 and +12... and which also have voltage control for each line (+5 +3,3 +12) As far as I know,there's only one brand of PC powersupply which have that kind of specification, which is ANTEC TrueControl.... If anyone know the board diagram how to make that kind of power supply unit...your help would be greatly appreciated... __________________ M Fachri Howel

9th January 2004, 11:53 PM	(permalink)
Rescyou	PW You usually just have to throw a power resistor on one of the +5v lines so there is always a load on it and the rest should function as normal. Have a look at this: http://web2.murraystate.edu/andy.bat...owersupply.htm If you want voltages other than what it is putting out you will have to make an adjustable regulator of some sort. I've used LM317T regulators a lot on they are pretty easy to hook up. Have a look for the datasheet of one and it will give you the schematics. Preformed Google Search for (lm317t): http://www.google.ca/search?q=lm317t&hl=en Preformed google Search for: ("pc power supply" resistor) http://www.google.ca/search?hl=en&ie...resistor&meta= Resc. Resc.