A friend (Matt Kocsis) and I purchased some Luxeon K2 LED emitters from Lumileds and I’m looking forward to building some constant current PWM drivers for them. I’ve found a couple of constant current driver schematics, but I’m planning on pulsing the outputs (which can draw up to 1.5A), so I want to make sure that the circuits will work with the high-frequency PWM. Matt and I are also working on a heatsink that will effectively cool these LEDs. The plan is to create a programmable high-intensity RGB spot/wash light with pan/tilt and optic (i.e. focus) control. We’ll see how this project pans out, but in the meantime, playing with these incredibly high intensity LEDs has been quite fun.
The LED emitters pictured below are:
3 x LXK2-PD12-Q00 (Red)
3 x LXK2-PM14-U00 (Green)
3 x LXK2-PB14-N00 (Blue)
3 x LXK2-PR14-Q00 (Royal Blue)
2 x LXK2-PR12-L00 (Royal Blue)
2 x LXK2-PW14-U00 (White)1 x LXHL-MW1D (White Luxeon Star)
Here are a couple of pictures comparing the different LED emitters:
