Kapanadze Cousin - DALLY FREE ENERGY

[itsu]

Dog,

yes i build it partially, i am missing the transformer, but the rest is working.
The R32 (12K) was changed into a 20K pot, and this regulates the frequency between 36KHz TO 85KHz.



All,

The following diagram was taken from this forum:

http://realstrannik.ru/forum/39-kapanadze/134930-ustanovka-ruslana-kulabuxova.html?start=5166#274580

it shows a possible sync of the Kacher and a fast decay (ringdown), at least faster then what i noticed above.
In red above the text, the translation (google)


Regards Itsu 

[AlienGrey]

Have you guys built this inverter circuit and tested it?

I tried it with several input voltages using a cwsbytemark.com MegaFlux toroid core and was able to adjust secondary turns to pretty much get any voltage I want.  My thought was to run at about 1/3 of the max voltage the IRFP460.  Make R32 adjustable and find C27 to be near a midrange point where the frequency is most efficient for the core you are using.  Try not to run it too fast as the IR2153 can only handle so much drive current on the MOSFETs.  You won't burn up the chip with R30 & R31 in-place, but the waveform will begin to slew pretty bad; consequently the MOSFETs will begin to run hot.  Check the heat on R27.  When things are right, it should run nice-n-cool.

yes i made a device like that ages ago, but i dint drive the fets like that, i used 2 driver transisters on each phase in a totem pole configuration, it will drive a 100watt light bulb dead esy.

[Dog-One]

The following diagram was taken from this forum:

http://realstrannik.ru/forum/39-kapanadze/134930-ustanovka-ruslana-kulabuxova.html?start=5166#274580

it shows a possible sync of the Kacher and a fast decay (ringdown), at least faster then what i noticed above.
In red above the text, the translation (google).

Voltage is the blue trace and current the red trace correct?  Current lagging voltage by 90 degrees--standard no load resonant behavior.

So it looks like you can trigger the Kacher at the current zero crossing upswing the way Ruslan's circuit does or from the peak voltage, either should work fine.

I can't tell if the trigger initiates a burst or not.  It appears that it does with only two or three cycles.  It could be the bucking coil wound ferrite stick does this from a single impulse.  Just not sure.  Regardless, if this is the kind of waveform needed at the antenna, it is surely doable.

[Jeg]

So it looks like you can trigger the Kacher at the current zero crossing upswing the way Ruslan's circuit does or from the peak voltage, either should work fine.

Hi Dog-One
Triggering on voltage or on current peak should be determined of your 28T output configuration. If you connect your 28T in series with your grenade then you need to trigger on current peak. If you have a tuning capacitor in parallel with your 28T (Allegga's circuit)  then i think normally you should aim on voltage peak sensed at this 28T tuning capacitor's plates.

ps. May i assume that Allega has a successful running replication? Is there any video link to it?

[itsu]

Voltage is the blue trace and current the red trace correct?  Current lagging voltage by 90 degrees--standard no load resonant behavior.

So it looks like you can trigger the Kacher at the current zero crossing upswing the way Ruslan's circuit does or from the peak voltage, either should work fine.

I can't tell if the trigger initiates a burst or not.  It appears that it does with only two or three cycles.  It could be the bucking coil wound ferrite stick does this from a single impulse.  Just not sure.  Regardless, if this is the kind of waveform needed at the antenna, it is surely doable.

Dog,

i was more looking at the Kacher ringdown then the relationship with the sine wave signal below it, but now you mentioned it, it does not make sense, what is this sine wave?

Is it the inductor voltage/current (i guess U is voltage and J is current, but perhaps our Russian frriends can confirm)?

If so (inductor current/voltage), then i would expect it to be in (series) resonance, meaning voltage and current in phase!
http://www.electronics-tutorials.ws/accircuits/series-resonance.html

So why the voltage / current phase shift?

Regards Itsu