Re: Best way to power array of LEDs?

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#166

From: Lizard Blizzard
Date: Tue, 05 Nov 2002 15:55

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ehsjr@bellatlantic.net wrote:

> Winfield Hill wrote:


>> I was taught to make efficient designs by insuring every part
>> has a purpose and carries its own weight.  With that in mind,
>> here's my entry, a slim 32-channel adjustable current source.


> Where's the remote current sensing/ individual
> current auto adjusting circuit for each LED?


>> 12V etc   4.7k               68 2W   GND
>> x-----/\/\--------x-- E   C --/\/\----x
>> |                 |     B             |
>> |     LM385-1.2   B     |    3.3k     |
>> +------|>]----- E   C --x---/\/\------x
...
[snip]

BTW, them are PNPs, not NPNs.

>> Thanks,
>>    - Win



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From: Lizard Blizzard <NOSPAM@rsccd.org>
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: Tue, 05 Nov 2002 07:55:52 -0800
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