adjustable dc to dc converter

Adjustable switch mode power supply tutorial

This video explains the purpose of feedback resistors in a buck converter circuit and shows you how to calculate them. Then I show you how to build a high current adjustable power supply using an LM2678 and a potentiometer.

Parts list:
Input electrolytic cap:
Output electrolytic cap:
Input and output ceramic caps:!?q=UMK325BJ106MM-T
Bootstrap cap:
Schottky diode:
22uH inductor:
adjustable buck converter schematic