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Title: The constant current LED driver circuit Post by: mitchell on October 11, 2009, 08:04:45 AM One of my favorite simple circuits.
(http://3dmitchell.com/images/circuits/constantcurrentLED.JPG) Constant Current LED Driver Bob Pease from National Semiconductor came up with this circuit. It maintains a constant current through one or more LED's. A single resistor controls the desired current. |