Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

But as i said,  "no sign of any (underlaying) Tesla coil either", so there is no "tesla coil" anymore!!

I don't think so, see path from white wires, also lateron in the video you can see the left white wire goes to the 2x 25 turn coil.

Regards Itsu

Yes, I agree. The original yoke wiring to grenade coils are probably correct.

I think I can also see the copper wire coil between the flat copper strips. See below. I estimate approx 70 turns of wire.

As you have pointed out, the single red cap is going to the 3-turn yoke winding. The two paralleled red caps may be in series with the Grenade coil and 28 turn yoke winding, as shown in Bruto's hand drawing below?? Or, could they be the storage caps for the high voltage Kacher power supply??

[itsu]

Itsu can you please measure how many KHz is your yoke's primary oscillation? The one that you consider as parasitic. In my previous yoke arrangement with 12 12 primary was around 600khz. Now with 6 6 turns primary is around 870khz.

hi Jeg,

not sure what you mean by  "your yoke's primary oscillation".

When i input my SG at the 3 turn secondary, and measure across the free/open ends of the primary (so 12 turns inbetween) with my scope,
i see a nice sine wave develope at 4.6Mhz (input from the SG is square wave).

So to me this means this 2x 6 turns primary self resonates at 4.6MHz with nothing attached to the 28 turn secondary, is that what you want to know?


When i was at it, i measured the inductance of this primary and found that the total inductance across the 2x 6 = 12 turns is 77.9uH
But measuring the both 6 turns individual, i see an unbalans as 1 leg measures 18.6uH, and the other 24.3uH.
Need some adjusting there.

Finally, i measured the 2x25 turn L3 coil which i previously calculated at 80uH, and it measures 87uH.


Regards Itsu

[Hoppy]

Hoppy,

i have 12V TVS's across gate to ground, and a 4.7Ohm resistor between driver and gate, see diagram of my present snubber circuit below
ALL items are in place, in red those with different values then original (also, the UF4007 (in my case) across the 10 (7.5) Ohm resistor is REVERSED, so cathode to ground!).

The gate signal is good, no problems there, its the drain signal that is not following the gate signal.

Yesterday i added to ALL THIS across each 6 turn primary a 28V zener in series with a schottky diode (cathode to cathode, zener anode to 12V) which got rid of many high peaks, but still some ringing and worse, MOSFET's switching when not activated by the gate signal (or by the opposite MOSFET gate signal/spike).

So going for a new setup,  regards Itsu

Itsu,

This is proving to be bugger!

I'm not happy with the snubber shown on the original drawing, as the capacitor should be in the order of 47nF or more, not 2n2. The diode is the right way round). As I commented earlier, a diode clamp (drain to gate) would probably be better, with perhaps the varistor across drain / source. I will shortly be in a position to test this, so will report back my findings. I will be using G40N60 IGBT's.

[Hoppy]

T1000 commented some time back that the nano pulser should pulse the kacher, which strongly suggests to me that the Kacher should be powered from the main supply and stepped up to a high voltage as Mag suggests. However, I don't think the 28 turn yoke winding is providing the power.

Edit: On second thoughts, has Ruslan tried the copper tape wound tightly over the secondary winding in an attempt to increase the voltage level across the secondary through close coupling? If this is the case, then my logic tells me that he is driving the primary from a low voltage, otherwise he would surely suffer arcing between windings.

[Hoppy]

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