Building a Test Load (4-30V 0-4A)

Let's build a DIY test load to test USB chargers and other power supplies. It can operate at 4 to 30V supply voltage and draw an adjustable current from 0 to 4A. Warning: it can get very hot, risk of fire or burns!

Please support my channel on Patreon: https://www.patreon.com/DiodeGoneWild

Instagram: https://www.instagram.com/savage_danyk/ ... https://www.youtube.com/watch?v=Pu0SIL7UsV8