Topic

efficiency

2 videos. Ranked by independent recommendations, not by views.

1. 

   1 Buck converter vs. linear voltage regulator - practical comparison

   ElectronFun.com 4 people · 4 months · since Aug 2015

   Praised as a hands-on comparison of switching and linear regulators, showing where each is more efficient and helping people decide what to use for battery projects.

2. 

   2 PWM VS Potentiometer! When to use which technique?

   GreatScott! 3 people · 3 months · since Nov 2014

   GreatScott's comparison of PWM against variable resistors, used to show why resistive dimming or speed control wastes power as heat.