Re: Best way to power array of LEDs?

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#234

From: GregS
Date: Mon, 07 Oct 2002 16:32

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In article <3da1b194$0$7781@dingus.crosslink.net>, "John Gilmer" <gilmer@crosslink.net> wrote:
>Just curious:
>
>Has anyone here actually taken apart a commercially made LED string that is
>powered directly from the automobile nominal 12 volts (up to about 14 volts
>during "normal" transients) or from 120 VAC?
>
>How have the folks who have to honor the warrantees solved the problem?

What problem?

I have not taken any aprt, but I made one. I used series parallel wiring. 
Well LED's do take transients well. They should also be
used under their average rated parameters, and close spacing will
derate their heat dissipation Autompbiles can also get very hot. LED's will 
dim when over driven. The light will droop after an initial high current 
drive.

Automoble equipment should be made to stand to at least 16 volts.

greg

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From: szekeres@pitt.edu (GregS)
Newsgroups: sci.electronics.components,sci.electronics.design,alt.engineering.electrical,aus.electronics,sci.electronics.repair
Subject: Re: Best way to power array of LEDs?
Date: Mon, 07 Oct 2002 16:32:55 GMT
Organization: Why?
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