Convert a computer power supply to a variable bench top lab power supply.
Diy lab bench power supply make using atx psu.
There are actually a few different atx power supplies all of them are designed to provide 3 3 5 and 12 volt outputs.
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Those previous articles will help to understand the terminologies.
Looks like a fun project.
Prices today for a lab power supply well exceed 180.
List of needed components to built diy benchtop power supply.
The original atx standard connector used for powering the motherboard was a single 20 pin molex that has all the required 12vdc and 5vdc voltages with huge output currents and short circuit protection as well as a power on wire that allows the pc s software to turn off the psu on shut down.
Obviously you need a computer psu which is healthy and nicely working.
I really like your take on using a motherboard connector to make this work with with any atx power supply.
I am considering building this but using an usb c apple power supply.
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 interchangeability would be kind of fun as well as setting up the case with a slick usb c port.
But it turns out a obsolete computer power supply is perfect for the job instead.
Most computer psu s range from about 150w up to 500w so there is plenty of power.
Aliexpress voltage regulator.
In this video show converting computer atx power supply to lab bench power supply.
Also can serve as a quick tester for all those old supplies i have taking up space.
Atx power supplies have standard sizes and connectors for use with atx motherboards.
With these costing you only 25 and having short circuit protection thermal protection overload protection and.
A little more work up front but well worth it in the long run as it is super easy to swap supplies if one fails.
The main power connector supplies power to the motherboard of the computer.