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.
Convert pc power supply to lab power supply.
Convert a computer power supply to a variable bench top lab power supply.
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.
With features that are more or less hit or miss for what you need.
Computer power supplies have all the voltages you ll need and some very impressive current capabilities.
Why use a computer atx power supply.
While a commercial bench power supply is certainly a worthwhile investment there is a cheaper solution that you might want to consider.
Convert an atx power supply into a regular dc power supply.
With these costing you only 25 and having short circuit protection thermal protection overload protection and.
But it turns out a obsolete computer power supply is perfect for the job instead.
A dc power supply can be hard to find and expensive.
Well they re available everywhere and they can output tremendous amounts of power in a small form.
In this instructable i will show you how to convert a computer power supply into a regular dc power supply with 12 5 and 3 3 v.
Prices today for a lab power supply well exceed 180.