tay
Enlightened
I had a couple of Rebel 700mA tri-stars in RGB laying around after a school project where I used light sensors and a microcontroller to PWM them through IRF510 MOSFETs.
I had the LEDs, and I had the 700mA constant current drivers.
I picked up a cheap "RGB" LED controller off of ebay. I didn't think it would be able to power nine 3W LEDs at the same time, but I still had the IRF510 setup for PWM control, so I was figuring that I would use the low current LED output from the controller to control the IRF510 array (I had driven the IRF510s off of a few milliamps at 5v, so I knew the controller could do it) and then just a 12vdc power supply to power the IRF510s.
They're mounted on a Dell Pentium 4 heatsink. I soldered it all up today once I got home from work, and I'm thrilled with how it works. Apparently, those cheap Chinese-made RGB controllers can handle some serious current. The PCB looked durable, but there was about eight inches of 20ga wire, RGB with a common ground, and I was like no way will that wire handle 2.1 amps from when all the LEDs are on. However, it did, so I didn't need to use my MOSFETs at all, I just have the controller directly driving the constant current drivers.
This was the RGB controller. Bunch of them similar on ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320535777631
The LEDs. I have a red, green, and blue.
http://www.luxeonstar.com/Luxeon-Rebel-Tri-Star-LEDs-s/25.htm
The CCDs from dx
http://www.dealextreme.com/details.dx/sku.13557
Some pics of the build:
And a video:
I had the LEDs, and I had the 700mA constant current drivers.
I picked up a cheap "RGB" LED controller off of ebay. I didn't think it would be able to power nine 3W LEDs at the same time, but I still had the IRF510 setup for PWM control, so I was figuring that I would use the low current LED output from the controller to control the IRF510 array (I had driven the IRF510s off of a few milliamps at 5v, so I knew the controller could do it) and then just a 12vdc power supply to power the IRF510s.
They're mounted on a Dell Pentium 4 heatsink. I soldered it all up today once I got home from work, and I'm thrilled with how it works. Apparently, those cheap Chinese-made RGB controllers can handle some serious current. The PCB looked durable, but there was about eight inches of 20ga wire, RGB with a common ground, and I was like no way will that wire handle 2.1 amps from when all the LEDs are on. However, it did, so I didn't need to use my MOSFETs at all, I just have the controller directly driving the constant current drivers.
This was the RGB controller. Bunch of them similar on ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320535777631
The LEDs. I have a red, green, and blue.
http://www.luxeonstar.com/Luxeon-Rebel-Tri-Star-LEDs-s/25.htm
The CCDs from dx
http://www.dealextreme.com/details.dx/sku.13557
Some pics of the build:
And a video:
