Shorting coil gives back more power

[bolt]

So what have you built?
Spinning magnets is just a learning tool, and very good one.
You cannot write a word before you know the letters.

30 years worth of trained RF tech military, commercial,  HAM radio, DIY hobby and energy saving stuff. Im currently working with HHO. So yes i do know a few letters.

[bolt]

I see what you mean, I've been all solid state from the beginning until a few months ago, because there where a few concepts I needed to learn by actually having rotating magnets. But I'm  definitely going back to solid state.
I'm at work so can't make a drawing but I think I get the picture. The bloch wall sits at 1/3 on the core side closer to the 4 magnet pack. The coil starts there and has the end towards the weeker side (1 magnet). The coil when pulsed has the same magnetic orientation as the single magnet and actually strenghtens its field pulling the bloch wall a bit inside the coil. I mean if the 4 magnets are N towards the core the single magnet has S facing the core, the coil when energized has same polarity as the single magnet, correct?

Mario

Yes that's about it. As magnacoaster is no scientist he figured out pretty quick to pulse the coil and magnet rather then using wheels. Although someone may have told him how to do it and he tried and it works. So all you have to do is find the Bloch wall and pulse it making sure the polarity is correct for the pulses then work out what frequencies work best.

[yssuraxu_697]

30 years worth of trained RF tech military, commercial,  HAM radio, DIY hobby and energy saving stuff. Im currently working with HHO. So yes i do know a few letters.

Then it should be rather easy to build solid state shorting device with COP > 1. If you are here to teach others then it works better by repeatable experiments. With your level of experience it should take much less time to build working device then to spend all this time posting and drawing schematics

[konehead]

Hi all
"rules" of successful coil-shorting are:
1) must use super low low low resistance switching. That is why reed swtiches work well (but wont last)...I was always using solid state mosfet relays in my motor for years, when I tried to coil short with them, it didnt work at all and was very confounded.
This summer, Ismael Aviso told me to do it solid state you MUST have ultra-low resistance switching and this means you can only use mosfets of high amperage basically.
Ismael actually puts 5 mosfets in paralell to get the ressitance low....solids state relays will NOT work as resistance is too high. 
Also this summer Gyula gave me  excellent bidirectional mosfet circuit, where mosfets connect at the source and gate so they swtihc AC this works very great.

rule2) ther emust be NO resistance in capacitor that fills up in coil shorting ...any resistance kills effect as you get the picture...
you shoulud have "two-stage" circuit to output power - that is cap fills up first, then cap dumps to load while at same time cap is disconnected from "source" (coils being shorted)
I never had problems iwth extra draw (reflection) to motor when using reed swithcies - just like romerouk shows - you find that timing sweet spot - but when I made a very powerful mullergenrator with aircores, and one coil of 12  can put out 15A and 20V apiece (VA not watts) then had lots of problems of rotovertor motor going up in draw when coil-shorting.
My freind Bob Leff was testing this with me and I showed him scope shot what coil shorting looks like (oscilation rings)
and he said this is JUST LIKE TESL SPARK GAP (it is and  Ismael says same thing) - when spark gap jumps acorss upon connection, it shorts coil....and so what you do with Tesla spark gap is put "resonator" AC cap in series so we did that and "rerfleciton" (extra draw)  back to motor is totally GONE...(BIG breakthrogh!)
but you must experiment with different uf sizes - 6uf as example will be no refleciton, but lesser power let thourght...Bolt explained to me the AC cap in series works as high-bypass filter...letting the highend go through to fill cap but blcoking low end stuff that casues lenz-lug to rotor... other example is 100 uf will be lots of powe let through, but the lots of  relction etc...
The AC seris  caps also cuts lenz sw down too which also Ismael confimred to me he usesthem too...but really two-stage circuit and also high bypass cap is way you want to go for "extraction" of big power.
Ismael Shorts 5 times during peak period - and he times the shorts to occur right at tops of the OSCILLATION'S PEAKS that is the"how he does it"
I am woking on doing that now. using some 555 smitt-trigger timer cirucits that Bolt gave me which can sense, asimewave peaks and pop in the multiple shorts per peak...

[Groundloop]

Konehead,

>>Also this summer Gyula gave me excellent bidirectional mosfet circuit, where mosfets >>connect at the source and gate so they switch AC this works very great.

Can you post this circuit here?

GL.