Hi, I'm actually in the begining of a project where i will use a led panel counting not less than ~150 power leds (read 3w leds). The LEDs have a forward voltage of 2.4V and they run fine @ 700mA. I would like to use an ATX Power supply because i will need : +3.3V for bluetooth communications (…

Driving POWER LEDs ...

retrolefty September 29, 2011, 2:55pm 3

Here is a E-bay search for 3watt (700ma) constant current LED drivers:

Topic		Replies	Views
Powering Lots of LEDs (or anything really) With "Excess" Voltage LEDs and Multiplexing	5	2599	May 6, 2021
multiplexing and 1W LED's Interfacing	15	5414	May 6, 2021
Under-powering LED's LEDs and Multiplexing	6	905	May 6, 2021
RGB LED strips ,60/ M and atx power supply LEDs and Multiplexing	1	1008	May 6, 2021
Multiple LEDs Voltage vs Amps LEDs and Multiplexing	12	3562	May 6, 2021