[NewCandle] Parasitic Cap Charging
John Winterflood
jwinter at cyllene.uwa.edu.au
Fri Oct 3 11:35:50 EDT 2008
Dr Stiffler wrote:
> My site was down for 12 days during power outage as a result of
> Hurricane Ike followed by 'Denial of Service' and invasion of my old
> MS Server OS. You are lucky you could find it in operable state.
Yes it appears to be down again.
> Now to your initial topic. Yes and No on ESEG. The current state is;
> 1) will not start itself. 2) requires initial minimum charge to start.
> 3) output provides nothing for a secondary device. 4) will run for
> time periods far in excess of initial start charge, is "limited".
I can't see that any of the limitations you have listed apply to the
setup I had in mind: Start with two capacitors charged to say 16V. Run
the ESEG from one capacitor while charging the other in a floating state
- as has already been demonstrated. Drawing 3mA for say 1 second from a
3 Farad cap will only cause a voltage drop of about 1mV in its supply
voltage causing it to drop to 15.999V. Meanwhile the floating capacitor
should be charging at up at several (~6) times this rate and will thus
increase to say 16.005V. A multi-pole change over relay can swap their
connections over every second to run from the fully charged one and
recharge the slightly discharged one. Some sort of zener arrangement
across each capacitor could prevent them overcharging and regulate them
to a suitable maximum voltage. Such a self-runner would really be
something to get excited about as it would be obviously and undeniably
overunity!
> I have not been able to model the exciter in 'MicroCap', I do not know
> Spice but would welcome help here. If a model could be derived, ESEG
> may really be something of value.
I'm not surprised you are having problems attempting to model it. I can
see no reason for it to oscillate at all - there seems to be no positive
feedback path that I can discern. So my guess is that your lack of
shielding anywhere is allowing feedback to occur by unexpected
capacitive or inductive coupling. Until you can find out what this
feedback path is and quantify it somewhat, it will not be possible to
model the circuit's operation.
A more conventional approach might be to build such a unit into a
diecast box with BNC sockets for inputs and outputs and a small metal
can around the oscillator coil inside, etc. But then you would probably
just get conventional results - no oscillation - and nothing new would
be discovered!
J.
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