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DIY ATX Lab Bench Power Supply
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Convert an old ATX power supply into a lab bench power supply.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution
I wanted to convert an old ATX PSU into a lab bench power supply.
Since none of the designs found fullfilled my needs I created my own design.
The features are:
- 3.3V, 5V, 12V, and GND rails of PSU attached to banana plugs
- Integrated buck-boost converter to also support other voltages
- Two status leds
- One additional switch to turn PSU on/off
Parts required:
- 1 (old) ATX PSU
- 1 buck-boost converter, I used this ARCELI Buck Boost Converter (https://www.amazon.de/gp/product/B07MY399GQ - when using a different one the dimensions may differ)
- 8 banana plugs (4 red ones, and 4 black ones)
- 10 M3 nuts
- 10 M3 screws (I used 8 mm)
- 1 M3/M4 screw + nut to attach the front panel at the bottom. For this I drilled a hole in the printed part (front_plate.stl).
- Screws to mount psu_cover.stl and fan grill should be already available from ATX PSU
- Crimp connectors for wires (ring terminals to attach to banana plugs, ferrules for screw terminals)
P.S.: I attached fusion360/ step files in case you need to change some dimensions for your PSU you are using / want to use a different buck-boost converter / you want to improve the design etc ;)