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From: "Harry Dellamano"
Subject: Re: current source for array of infrared leds
Date: Sun, 1 Dec 2002 08:28:42 -0800
Organization: Posted via Supernews, http://www.supernews.com
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"Harry Dellamano" wrote in message
> Hey Frank,
> Driving LEDS in current mode sucks. There is no tempco tracking for
> constant light and it's not efficient. Most larger arrays are driven in
> constant voltage mode, look at traffic lights (300 LEDs, 2.5V, 0.03A, 20
> Better efficiency and first order tempco tracking.
I don't get it. I make a very controversial statement to this thread that
contains many astute contributors and receive no feedback. At first I
thought that maybe I am on everybody's kill file because this happens often
to me but the thread stopped completely like the plague had arrived.
My style may be abrasive but I believe that there is some merit for
constant voltage drive for LEDs and would like to discuss it. Am I so far
off base that discussion is not possible. At least Robert would have given
me some feedback.
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