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Subject: Designing current source?

Date: 10/25/03 at 1:32 PM
Posted by: Ben Blonder
E-mail: ben[AT55]shopsummit.com (replace [AT55] with @ to reply)
Message Posted:

Hi all. I have a 14.4V battery that can provide up to 3A continuous. I'd like to use this to power a LED array, which draws 2.8A at 9V.

I'm assuming the best way to do this is via some sort of constant-current source, rather than a series resistor (too much power wasted). Could someone help me with designing this? I'm still teaching myself about electronics, so if you could also explain why you're suggesting what you are, that'd be great.

Thanks!


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