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Unread 27-06-2011, 14:49
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Re: FIRST LED signs for purchase!

Quote:
Originally Posted by matt99199 View Post
the voltage is balanced by the number of LED's for each color i use
I asked about current, not voltage. Do you know what the I-V curve of a diode looks like?

If you don't have a way of controlling the current, you can easily end up overstressing the LEDs and burning them out. A simple series resistor is usually good enough, but a fancy constant-current source circuit will keep the brightness much more consistent.
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