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Old 07/22/2011, 06:16 PM   #1740
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Join Date: May 2011
Posts: 74
4 channel, PWM controlled driver

A friend of mine has been helping me out with my LED build. He built me four boards using info he found here and modified them for his own use. Each board is around $55 to build. You need an external power supply. I'm using 24v/13A Meanwell power supplies.

- Each board has four channels at 1000mA each, independently controlled by PWM.
- Four trim pots to manually set the max current each driver puts out to <1000mA
- PMW override jumper to bypass the PWM in case you don't want a controller. It just sends 5v to the chip for you so they always run full on.
- 12v outputs for your Arduino power so you don't need another adapter.

Here's a picture of the board and the eagle files, parts list, etc. are in the zip folder. There are links to the parts at Digikey in the parts list.

Attached Images
File Type: png 4upcatver5.0.png (21.1 KB, 174 views)
Attached Files
File Type: zip O2Surplus (78.1 KB, 145 views)

Last edited by jcgd; 07/22/2011 at 06:46 PM.
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