Shorting coil gives back more power

[woopy]

Hi Gyula

I tried your correction on the circuit ( that i got from  the diagram of Doug Konzen) and it works , but i got this very pure sine wave without any spike but with peak to peak 80 and more voltage.

than i tried to modify the hall sensor position to get the spike and nothing happen. Than i simply disconnected the 2 Halls and the scope trace stayed the same.

Than i tried different AC caps and the result is each time very different.

So i have have to go sleeping and perhaps tomorrow will bring some better idea of this really complex thing.

By the way i use now the IRF 540 mosfet  and i intend to order some IRF 2807 with very low on resistance  any advice ?

good luck at all

laurent

[gyulasun]

Hi Laurent,

I also must finish for today but what I quickly can tell you is that first try to use a reed switch just to control the two MOSFETs, ok? I attached the schematic I also showed to Doug Konzen last August. (it is in EVGRAY Photo folder http://groups.yahoo.com/group/EVGRAY/photos/album/1586264660/pic/list ).
When you have this reed control going ok then you may wish to use a single Hall switch first, on one of the sine wave peaks, then with a second Hall on the other peak.

Good night,  Gyula

EDIT you may even leave out the series capacitor too and insert it later when you see useful.

[FreeEnergyInfo]

Hi Laurent,

I also must finish for today but what I quickly can tell you is that first try to use a reed switch just to control the two MOSFETs, ok? I attached the schematic I also showed to Doug Konzen last August. (it is in EVGRAY Photo folder http://groups.yahoo.com/group/EVGRAY/photos/album/1586264660/pic/list ).
When you have this reed control going ok then you may wish to use a single Hall switch first, on one of the sine wave peaks, then with a second Hall on the other peak.

Good night,  Gyula

EDIT you may even leave out the series capacitor too and insert it later when you see useful.

this circuit ist corect or nocorect

[gyulasun]

Hi FreeEnergyInfo ,

I believe it correct, I also say first use it without the series capacitor (I mean the 0.47uF) and when you see the spikes at the wave peaks then try the right cap value,  Konzen can give you more info on this latter.

Gyula

[FreeEnergyInfo]

Hi FreeEnergyInfo ,

I believe it correct, I also say first use it without the series capacitor (I mean the 0.47uF) and when you see the spikes at the wave peaks then try the right cap value,  Konzen can give you more info on this latter.

Gyula

THANKS.......