Re: resistor transistor basics

On Mon, 14 May 2007 03:01:15 +0200, Jan Nielsen wrote:

I am just wondering if the 5LEDs with the same voltage can share a
resistor, when they will be varying in current draw.

No. They never have exactly the same forward voltage drop, so one
LED will hog all of the current until it blows, then the next, and
so on. The current rises exponentially with the voltage.

Use a resistor (or current regulator) in series with each LED, or in
series with each series string of LEDs.

Good Luck!
Rich

.

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