05-03-2019, 11:54 AM
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Craftsman
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Join Date: Sep 2007
Posts: 190
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Quote:
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Originally Posted by tbzep
I put a straight 2.2v to the old LED's and they were much brighter than with the board supplied power.
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LED's are current driven devices, not voltage driven. You need to drive them from a constant current (or pseudo-CC) source. Typically that means using a resistor in series with the LED.
Driving directly from a voltage source can easily result in excessive current draw and destruction of the LED. |