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From: Tony Williams
Subject: Re: Best way to power array of LEDs?
Date: Tue, 03 Dec 2002 13:10:21 +0000 (GMT)
References: <0001HW.B9C26E7400A7161B165FEAC0@news.covad.net> <2Qan9.3129$cS4.email@example.com> <3DC843FE.4A25FFF3@fanwap.com> <3DC99AD4.2AB0FE52@fanwap.com> <firstname.lastname@example.org> <email@example.com>
NNTP-Posting-Date: Tue, 3 Dec 2002 13:28:52 +0000 (UTC)
User-Agent: Pluto/1.14i (RISC-OS/3.60)
In article ,
Winfield Hill wrote:
> Exactamundo. Although one would like to see even higher gain,
Is it worth it for a LED?
> as could be afforded by a constant-current sink replacing the 220k.
I would feel more comfortable with squeezing the
most out of the front-end first though.
> BTW, Tony - I'm surprised you didn't catch my egregious error in
> the original version of the circuit.
I didn't notice it....
I did see why the tail-resistor wasn't taken down to 0v
though. Nice touch.
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