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Sorry for the delayed response, I'm been on the road and I didn't have anymore specifics...but...
Supply voltage for the system is a 12VDC switching psu...Operating frequnecy is about 200kHz, set be a 150k resistor...The forward voltage of the LED is 4VDC, the forward current of the LED is...
I am working with the National Semiconductor LM3404 that is a buck regulator I am using to drive a single high power LED. I threw together a small PCB to test and make sure I have everything working. And to my surprise it works the first time I turn the power on.
Datasheet: **broken link...
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