You can keep the 20 pin molex connector attached and connect directly into it or cut it off completely and group together the individual wires keeping the same colours together reds to reds blacks to blacks etc.
Converting pc power supply to bench power supply.
The standard computer power supply unit psu turns the incoming 110v or 220vac alternating current into various dc direct current output voltages suitable for powering the computer s internal components and with a little bit of imagination it is possible to convert atx psu to a bench power supply.
Converting an atx power supply into a dc bench supply this article is the first in the projects category.
There are already a lot of tutorials online that show how to convert an old computer power supply into a bench power supply but most of these designs require you to permanently modify it.
By converting the cheap free atx power supplies that can be found in any discarded computer you can get a phenomenal lab power supply with huge current outputs short circuit protection and reasonably tight voltage regulation on the 5v line.
Computer power supplies cost around us 30 but lab power supplies can run you 100 or more.
But it turns out a obsolete computer power supply is perfect for the job instead.
It s a very inexpensive way to make a pretty good dc bench supply or dedicated 12 volt supply for working on projects or powering devices.
Computer power supplies have all the voltages you ll need and some very impressive current capabilities.
With these costing you only 25 and having short circuit protection thermal protection overload protection and.
Prices today for a lab power supply well exceed 180.
There are a number of ways to convert a standard computer atx power supply unit into a usable bench top power supply.
Adapt an old computer power supply to use on your workbench.
While a commercial bench power supply is certainly a worthwhile investment there is a cheaper solution that you might want to consider.
Convert a computer power supply to a variable bench top lab power supply.