mini 3ch RGB controllers

[sjim]

Does anyone have a circuit or know of any links, I want to build my own constant current drivers for this project for the 3wRGB's.

I know of several key components to possibly use, such as LM317's with 1 uf capacitor for helping with blending, or use TLC5940 with Mosfet (logic level) P channel and UNL2003, 7404's..as the TCL can only do 120ma per channel. Might need to hit the electronics forums but thought to ask first...

 

[fasteddy]

Does anyone have a circuit or know of any links, I want to build my own constant current drivers for this project for the 3wRGB's.

I know of several key components to possibly use, such as LM317's with 1 uf capacitor for helping with blending, or use TLC5940 with Mosfet (logic level) P channel and UNL2003, 7404's..as the TCL can only do 120ma per channel. Might need to hit the electronics forums but thought to ask first...

A quick google search gave me plenty of hits, use the search 'how to make a constant current driver' or 'how to make a constant current LED driver' and you will find all you need plus more.