LED Lamp
Last updated: January 2010
This is a high power density LED lamp. It uses 14 common anode RGB LEDs, each of which is 3W, for a total of 42W. The lamp measures 21x6 cm, for a power density of 3.3kW/m2. In operation in free air, the temperature exceeds 70°C, so active cooling will later be installed on the rear.
Each channel is independently controlled by an AS8342 PWM controller up to 5A, based on a 0..5V input voltage. The controller is tested and working, but needs to be put neatly on a PCB. Updates will follow.
The thick copper wire is standard household wiring. A template was used to solder the branches to the straight wires at three centimeter intervals. They were then soldered to the LEDs.