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: https://drive.google.com/drive/folder...

3D print, laser-cut, and engineering drawings: https://www.thingiverse.com/thing:383...
If thingiverse isn't working, use this link: https://grabcad.com/kralyn.3d-1/models

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: https://amzn.to/2Zhea7i
eBay:https://www.ebay.com/itm/High-Power-A...
UC Tronics 50V 5A step down converter:
Amazon: https://amzn.to/323GRBI
eBay:https://www.ebay.com/itm/US-New-DP-50...
Banana Plug female:
Amazon: https://amzn.to/2ZqJQCn
eBay:https://www.ebay.com/itm/10Pcs-Speake...
3 Pin On off On switch:
Amazon: https://amzn.to/324MQWR
eBayhttps://www.ebay.com/itm/5-pcs-SPDT-O...
5.5mm female DC jack:
Amazon: https://amzn.to/2ZvNWcs
eBay:https://www.ebay.com/itm/DC-In-Line-P...
80x10mm 12v Fan:
Amazon: https://amzn.to/2ZqKAYb
eBay:https://www.ebay.com/itm/12V-DC-80x10...
Other parts are salvaged from old electronics.


Music used:
_________________________
endless summer by Del.   / del-sound  
Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0
Free Download / Stream: https://bit.ly/_endless-summer
Music promoted by Audio Library    • Endless Summer – Del (No Copyright Mu...  

On the Way by Vlad Gluschenko   / vgl9  
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream: http://bit.ly/_OntheWay
Music promoted by Audio Library    • On the Way – Vlad Gluschenko (No Copy...  

Almost Original (Instrumental) by Joakim Karud   / joakimkarud  
Music promoted by Audio Library    • Almost Original (Instrumental) – Joak...