Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

   Although this is an older Akula video(below), the wrench heating one, the connections of the yoke primary coil fets, can be seen, along with the center tap of the yoke going to the output side of the driver controller board.  Although this video is not of a self runner, one can see the direction that he took at that point.
   That smaller yoke did not work well, and was replaced with the bigger yoke he uses now. There was only one secondary (3 turns coil), but using no secondary 28 turns yoke coil on this video. The 28 turns secondary coil was added later, and connected to the rectified voltage coming out of the inverter/full bridge recifier, at least on one side that can be clearly seen.
   I believe that the 12v input to the driver board comes through the two wires on the left (yellow and black) from the PS.
   Main point is that, the center tap of the yoke does not get the direct input from the 311v bridge rectifier, as some diagrams show.
So, at least some of the diagrams may be wrong.
https://www.youtube.com/watch?v=NbJXg0nDRdw

  John.K:
  quote: "Actually he was saying something about possibility to use transformer in connection to have device working at 50-60Hz. Nothing else in details.
                                end quote.

   Can you explain a little more what you mean by that? Please.
 

[Dog-One]

I give here another example: see drawing

I wonder myself on PLL-based system and what gives us the phase shift?

The schema using an IR2184...

If you look closely at the chip specifications, it becomes apparent this is a 50% duty cycle device with no possibility of phase shifting.  The 8-pin version has a fixed dead-time.

This is clearly just a standard push-pull driver, with no PWM control.  The clock signal into this device does have PLL lock to adapt to the changing load, but as far as it shifting phases between the two 12 turn windings, no magic there.

[Hoppy]

Hi Hoppy.

Actually he was saying something about possibility to use transformer in connection to have device working at 50-60Hz. Nothing else in details.

His hand sketch shows on the left push-pull. On the right side I think it is pick up coil.  Both synchronised and both grounded as he shows. On the output he draw some filter to not mess up LC tank circuit and the diode bridge.  He says do not ask for schematic. It is very easy to make it if you understand the process.

He step down from granade type because the stability and performance of the device was low.  For Tesla he use the oscillator (not kacher - but can be used if you wish)

That's all in brief.

Thanks John for your reply.

As I commented in an earlier post, I suspect that he is lighting the lamp load to max brightness under a fairly simple resonant circuit. He has very likely not yet achieved a true self-running feedback condition. The grenade coil is both cumbersome and inneficient, thus he has moved to a ferrite toroid based transformer. This all makes sense if he is talking about an induction based modus-operandi. Frequency and pulse width are key to efficiency here to avoid saturating the transformer core, unless he is looking for parametric oscillation condition. I suspect that push-pull should be replaced by a single switched output. My original replication worked more effectively with one of the push-pull mosfets disconnected.

Nick,

A 50Hz frequency of operation would only make sense to me if it was pulses at 50Hz generated with fast edges (non-sinusoidal) to maximise voltage amplification.

[Dog-One]

Think I may have stumbled onto something...

Akula's latest video:
https://www.youtube.com/watch?v=E0qVW3zNPkQ

It may be all thermal.  In the case of the Ruslan device, instead of the thermal-magnetic properties of a ferrite pot core, might the same thing happen with copper windings.

I think so.  I think we are tuning against an incorrect operating principal.

Paul Babcock gave us a hint.

[magpwr]

hi Tinselkoala or anyone whom got a tesla coil running on mains voltage to reply.

Base on the old video of Akula.I am curious to know roughly how high in kv is needed before we can see sparks at the ferrite rod by touching end of ferrite rod with a metallic object.
I was unable to see spark even at 4.4KV nanosecond pulsing with interrupter.

You seems like a right member to ask since you got a Tesla coil before which is around 1/2 Million volts or more.

https://www.youtube.com/watch?v=CdmKjRQzcWk

My unconfirmed guess is around 30..32kv
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Time to add interrupter on top of my PWM generator PCB.