Article View: sci.electronics.components
Article #159Re: Best way to power array of LEDs?
From: John Woodgate
Date: Sat, 02 Nov 2002 22:09
Date: Sat, 02 Nov 2002 22:09
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2708 bytes
I read in sci.electronics.design that David Lesher <wb8foz@panix.com> wrote (in <aq17gb$7ut$1@reader1.panix.com>) about 'Best way to power array of LEDs?', on Sat, 2 Nov 2002: >John Woodgate <jmw@jmwa.demon.contraspam.yuk> writes: > >>>>Let's have a competition to see how unbearably complicated we can make >>>>the task of feeding 36 LEDs from a car battery. >>> >>>Dynamotor to get higher voltage; then ballast tube regulation.. > >>That only two extra parts. We already had 'solutions' with 30 or so. > >My solution has 0.1% efficiency, takes up lots of space, weights a >ton, and makes lots of noise. What else could you want? Could you make it unreliable as well, without spending too little money? (;-) -- 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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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112d1e,4ef4c9d4aea85e1f X-Google-Attributes: gid112d1e,public X-Google-Thread: 103407,4ef4c9d4aea85e1f X-Google-Attributes: gid103407,public X-Google-Thread: 10d137,4ef4c9d4aea85e1f X-Google-Attributes: gid10d137,public X-Google-Thread: 1131b0,4ef4c9d4aea85e1f X-Google-Attributes: gid1131b0,public X-Google-Thread: 1118be,4ef4c9d4aea85e1f X-Google-Attributes: gid1118be,public X-Google-ArrivalTime: 2002-11-02 20:54:52 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!kibo.news.demon.net!news.demon.co.uk!demon!jmwa.demon.co.uk!jmw 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: Sat, 2 Nov 2002 22:09:13 +0000 Organization: JMWA Electronics Consultancy Lines: 22 Message-ID: <fGGyX2CJ0Ex9EwHT@jmwa.demon.co.uk> References: <0001HW.B9C26E7400A7161B165FEAC0@news.covad.net> <Rsan9.14070$qh1.1622310@news.ca.inter.net> <ank9ep$lumv$1@hades.csu.net> <anku2n$5so$1@news.wave.co.nz> <7tGLdeAS6fn9EwBv@jmwa.demon.co.uk> <apvlvu$n2c$1@reader1.panix.com> <KVdHjAAjM3w9Ew8l@jmwa.demon.co.uk> <aq17gb$7ut$1@reader1.panix.com> Reply-To: John Woodgate <jmw@jmwa.demon.co.uk> NNTP-Posting-Host: jmwa.demon.co.uk Mime-Version: 1.0 X-Trace: news.demon.co.uk 1036299291 29518 158.152.135.100 (3 Nov 2002 04:54:51 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Sun, 3 Nov 2002 04:54:51 +0000 (UTC) X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>