Alt-BEAM Archive
Message #05006
To: beam@sgiblab.sgi.com
From: Chiu-Yuan Fang chiumanfu@home.com
Date: Fri, 02 Jul 1999 16:17:19 -0700
Subject: [alt-beam] Re: UPDATED Power Smart Head page
A great description of the HLO circuit (pronounced "hello") can be found at:
http://www.geocities.com/SouthBeach/6897/rigter/wr_3.html#mar1
and
http://www.geocities.com/SouthBeach/6897/rigter/wr_3.html#2mar1
(Those pages are in desperate need of updating...)
The rest of the Power Smart Head circuit is easy to understand.
With the 1381L and two series diodes, what are the set and reset levels of the
SE?
BTW. Don't know if you realize but the caps shown in the pictures are .001uF
whereas the schematic calls for .01uF. Just something to make note of.
Chiu
Darrell Johnson wrote:
>
> --- Sean Rigter wrote:
> > Thank you Darrell!
> >
> > It's great to see the Power Smart Head experiment in
> > action, growing and
> > evolving. Just coming off an 80hr workweek (which
> > has kept me
> > incommunicado) but I will write up a "Power Smart -
> > how it works" this
> > weekend for this deceptively simple but versatile
> > class of Beam like
> > circuits.
>
> I'm sure a write-up would be much appreciated by all. You wrote a bit
> in your original email about the Power Smart Head workings, but I don't
> remember exactly how detailed you got.. (I don't have my old emails
> here at work)
> Yeah it's really a great circuit.. I slightly changed the resistor
> values of your original schematic (6.2M instead of 6.5M, and 510k
> instead of 580k) but the circuit seems to do all right that way.. maybe
> I'll change them whenever I get the chance to buy the right value
> components.
>
> >
> > BTW my correct email address for the schematic is
> > wilf.rigter@powertech.bc.ca
>
> Whoops.. that's what I get for trying to finish that layout at 1:00 in
> the morning.. I'll fix it.. Hopefully that's my only error..
>
> again thanks for the great circuits,
> -darrell
> ===
> _______________________________
> BICOREEOS..They're BEAMtastic!!
> http://home.pacbell.net/wundoba
> _________________________________________________________
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>
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