Re: Best way to power array of LEDs?

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#65

From: John Woodgate
Date: Mon, 09 Dec 2002 03:57

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I read in sci.electronics.design that Winfield Hill <whill@picovolt.com>
wrote (in <at0rth01cgq@drn.newsguy.com>) about 'Best way to power array
of LEDs?', on Sun, 8 Dec 2002:

>The LM385-1.2 is one of my favorite parts, a jelly-bean reference
> IC that should be in every parts cabinet.  

But the LM358 doesn't have a response from d.c. to light and if you use
it outside its gain-bandwidth or slew-rate ratings it DOESN'T WORK. You
should definitely use this week's wonder op-amp instead, only $10 and
unobtainable in large (or small) quantities. (;-)
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
Interested in professional sound reinforcement and distribution? Then go to 
http://www.isce.org.uk
PLEASE do NOT copy news posts to me by E-MAIL!

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From: John Woodgate <jmw@jmwa.demon.contraspam.yuk>
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, 9 Dec 2002 03:57:48 +0000
Organization: JMWA Electronics Consultancy
Lines: 16
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References: <0001HW.B9C26E7400A7161B165FEAC0@news.covad.net>
 <Rsan9.14070$qh1.1622310@news.ca.inter.net>
 <2Qan9.3129$cS4.107732@news2.tin.it> <3DC843FE.4A25FFF3@fanwap.com>
 <aqblsd$10119$1@hades.csu.net> <3DC99AD4.2AB0FE52@fanwap.com>
 <MPG.18340541f920a3f8989cb9@news.inreach.net> <asi6l201t31@drn.newsguy.com>
 <MPG.1857a98168b26b34989db6@news.inreach.net> <at0a6l01j0s@drn.newsguy.com>
 <at0rth01cgq@drn.newsguy.com>
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