Alt-BEAM Archive

Message #05255



To: beam@sgiblab.sgi.com
From: Sean Rigter rigter@cafe.net
Date: Sun, 11 Jul 1999 18:26:59 -0700
Subject: [alt-beam] Re: Chloroplast Solar Engine



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Nice going Craig!,

Occam's Razor in action slashing away the unnecessary bits of my earlier
and now obsolete "hysteresis SE" (a well deserved retirement).

Also note the even simpler and quite effective "flash SE" which combines
the desirable elements of voltage trigger and monostable reset. It is
quite robust working with different motors and draws about as much
current as an FLED or similar. The 100K pot is adjusted for the trigger
voltage (1.8V-24.0V!) and can be replaced with 2 fixed resistors, the
100uf cap can be adjusted to change the monostable time to reset the
latch. If there is interest I could add the details and layout info.

enjoy

wilf


Craig Maynard wrote:
>
> Here's a cool new type of Solar Engine I tinkered together about six
> weeks ago. I call it the "Chloroplast Solar Engine"
>
> I've been hearing a lot of discussion recently on problems with the
> traditional SE's and I have been having great success with this new
> type of solar engine.
>
> Some of it's features which makes it unique from the other SE's are...
>
> ----------------------------------------------------------------------------------------------
> - Maintains a minimum voltage of around 5 Volts, useful for
> maintaining digital logic or microprocessor circuits.
>
> - Has a hysteresis from 5-7 Volts which is adjustable to suit the
> designers needs. This "bonus voltages" is discharged across the motor,
> but discharging stops when the minimum threshold voltage ( around 5V )
> is reached.
>
> - Has more punch at a higher voltage than other solar engines,
> making it
> suitable for larger, torquier motors, such as those used on the CYBUG.
>
> - Uses only two three-pin devices and two resistors available from
> most electronics retailers.
>
> - Has no lock-up bugs.
>
> - Very simple to free-form.
>
> - Is very inexpensive.
>
> - Extremely low quiescent current ( about 25 micro amps or less)
>
> - Works the capacitor at closer to capacitor rated voltage for
> greater
> efficiency.
>
> --------------------------------------------------------------------------------------------
>
> I have a theory of operation and a quick gif file on how you can
> free-form your own Chloroplast at
> http://members.home.com/cybug/Chloro/chloro~1.htm and would welcome all
> comments and suggestions.
>
> Try 'er out!
>
> Craig Maynard

-

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5256 Sun, 11 Jul 1999 20:10:54 -0700 [alt-beam] Nu(tating) Motor beam@sgiblab.sgi.com Wilf Rigter
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I mentioned Nutating gears earlier so here something to wrap you head
around. Warning you will have to abandon some ideas about motors before you
can grasp this concept. And yes I had one in my hand and saw it work as
described - very weird! . The beauty of this thing is that it would run just
fine connected to a hex Nv core.
.
This is from a sales brochure:

The Morpac Nutating Motor is a unique development utilizing the rotation of
magnetic force, speed and a nutating gear to obtain low speed/high torque
output for positioning applications. Electromagnets (in torroid) are
energized in sequence 1,2,3,4,5,6 resulting in magnetic forces (indicated by
large arrows) on the rotor plate. As magnetic force moves from 1 to 2, the
rotor plate 'rolls' on nutates on the cone-shaped torroid surface holding
mating teeth of rotor and stator in mesh. At any given time approximately 8
teeth are in contact allowing extremely high total torque forces but low
pressure per individual tooth. When the magnetic force has moved through
360', the rotor will have advanced one tooth since it has one more tooth
than the torroid gear. For example, if the torroid gear has 147 teeth and
the rotor gear has one more, the motor provides 147:1 ratio. With a 60 Hz
line input, the magnetic force would rotate at 3600 rpm and the rotor
would rotate at 24.4 rpm (3600 -, 147) . The kinetic energy losses are far
less than in a conventional motor because only a magnetic field is rotating
at high speed, not a high inertia rotor.

<>
Compact and Light: No bulky motor or gearbox
Maintenance Free: No lubrication. No reduction gears to maintain. Only
three moving parts in a nutating motor. Capable of running under water.
Instant, 100% Energizing & De-Energizing: 'Magnetic field energizes
nutating motor instantly at 100% power. No stored inertia. No delayed
energy build up at the start and, no backlash at the stop.




Wilf Rigter mailto:wilf.rigter@powertech.bc.ca
tel: (604)590-7493
fax: (604)590-3411



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