DIY Mini Lab Bench Power Supply (With Switchable DC and AC Input)

This video will show you how to make a small yet functional lab bench power supply, with the added feature of being able to power it from any DC power source anywhere between 3 and 50V.

Warning: Working with 110V or 220V is extremely dangerous without proper knowledge. Please consult a professional if unsure. I am not responsible for injuries or damages caused by this power supply during build or use.

Documentation and script:

3D print, laser-cut, and engineering drawings:


Part links:
(Amazon Links are affiliate, they support the channel with NO EXTRA cost at your end)
AC-DC 36V 5A 180W Switching Power Supply:
Amazon:
eBay:
UC Tronics 50V 5A step down converter:
Amazon:
eBay:
Banana Plug female:
Amazon:
eBay:
3 Pin On off On switch:
Amazon:
eB
5.5mm female DC jack:
Amazon:
eBay:
80x10mm 12v Fan:
Amazon:
eBay:
Other parts are salvaged from old electronics.


Music used:
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endless summer by Del.
Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0
Free Download / Stream:
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On the Way by Vlad Gluschenko
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream:
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Almost Original (Instrumental) by Joakim Karud
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