power supply Archives – Circuits DIY

LM317 constant current source circuit design

A constant current source source can supply a fixed current to a load regardless of input voltage or load change. LM317 constant current source is one of the simplest design.…

Arnab January 26, 2017

DIY CFL/Tube

Simplest SMPS power supply ever – efficient and powerful – from an old CFL

New to power electronics ? Here is your first SMPS project. But a SMPS from an old/dead CFL ? Yes, it's possible, with a little modification, of course the CFL's…

Arnab December 11, 2016