Alt-BEAM Archive
Message #10294
To: beam@sgiblab.sgi.com
From: BUDSCOTT@aol.com
Date: Wed, 16 Feb 2000 16:02:19 EST
Subject: [alt-beam] FLED SE
OKay, the FLED SE is a solar engine that excludes the CMOS 1381J and uses a
flashing light emitting diode to regulate the capacitor storage. How in the
blazes does this work out. I'm not all to sure on the specs of a FLED and was
wondering if someone could (dare i say it) shed some light on the subject.
I'm trying to work on three projects at the same time, so my messages have
been a little scatterbrained lately.
-Spencer
10295 Wed, 16 Feb 2000 22:17:24 +0100 [alt-beam] Re: Solar cell Q "Thomas Pilgaard" I know that my questions are very newbie and that they've been up about a
zillion times but just to carve this out in ten feet cardboard letters: in
the everyday environment a 1F 2.5V gold cap along with a 3733 cell would
work allright due to the fact that the solarcell would require optimal
conditions to provide 5.5V?
I know a voltage regulator called LM78 that limits the current to 5 volts -
I use it along with a 9V battery for my breadboarded bicores. Wouldn't it be
just a matter of putting one of the likes in between the solarcell and the
cap. And would you know of a component that limits the current to around 2.8
volts?
Thankyou
Thomas
>
> You will shorten it's life span, and it'll charge up to only about 4V. It
> will rapidly decline back to ~2.8V after the source voltage is removed. I
> regularly "stretch" the 2.5V gold caps to 3V with the slow charge the
> solarcell provides.
>
> Regards,
> Dave
> ---------------------------------------------------------------
> "Um, no - that's H,R,Y,N,K,I,W. No, not K,I,U,U, K,I,_W_. Yes,
> that's right. Yes, I know it looks like "HOCKYRINK." Yup, only
> 2 vowels. Pronounciation? _SMITH_".
> http://www.solarbotics.com
>
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