Atx Bench Power Supply Diy

Here is a list of needed components to build diy benchtop power supply based on computer psu like atx to give uniform regulated dc output. 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. This is how to build an add on variable voltage module for your power supply.

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Those previous articles will help to understand the terminologies.

Atx bench power supply diy. If you have an old computer atx psu lying around you can give it new life as a bench power supply. It should be interesting to both those who want to do a conversion and to those interested in the evolution of a popular topic that has been done over and over on the site. List of needed components to built diy benchtop power supply.

If you want to use it as a variable lab bench power supply you can also use it with a lm317 voltage regulator. In my sophomore year of college at the university of minnesota i started into my main electronics classes and needed a good power supply for working on lab projects at home. My roommate adam told me about somebody online who had converted an atx c.

If you ve built a bench power supply using an old atx computer power supply you may feel limited by the choice of voltages 3 3v 5v and 12v dc. Suppose you re breadboarding a circuit that s meant to be run off a 9v battery. 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.

This guide has almost every atx computer power supply to bench power supply published to date on instructables as of dec 2014 about 70 unique instructables. Of course it only delivers fixed voltages 3 3 5 or 12v. Converting an atx power supply into a dc bench supply this article is the first in the projects category.

Obviously you need a computer psu which is healthy and nicely working. The main advantage of this board is its price. A bench power supply is an extremely handy bit of kit to have around for electronics hobbyists but they can be expensive when purchased new.

Atx to lab bench power supply conversion. I used the existing threaded screw holes on the back of the atx supply and a couple of homemade brackets actually just flattened a couple of small angle brackets in my bench vise to mount the atx power supply to the base. It s a lot cheaper than a benchtop psu and it is perfect for electronic beginners like me.

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