Kapanadze Cousin - DALLY FREE ENERGY

[verpies]

Verpies  it's restricted, who is the gate-keeper ?

I don't understand what a "gate-keeper" is?   Cerberus maybe?

did you use an opto driver and separate power supply ?

Not with Itsu but I used these fast isolated gate drivers (not slow optos!) with isolated DC-DC converters in my other designs, that took advantage of the bidirectional transistor configuration, depicted below:

[magpwr]

Hi magpwr,

Thank you for all the hints... 

Man you got me all confused now, I thought URFA-ibrahim is the way to go... 

Anyway, if I'm not mistaken, the video where you took the screenshot from, Akula was showing how to find the resonance frequency of the coil, then using a spectrum analyzer to find the harmonics frequency of it, which is the 3rd harmonics.  Then he showed that when the frequencies are harmonic of each other, they will line up like seen on the scope.  Am I correct?  Now the question is; which harmonics should I use, and does it matter?  I see a lot of talking about 3rd, 60th and 63rd so far.

Here is what I'm planning to do:

1.  Find the resonance frequency of the grenade coil, let assume it's 55kHz.
2.  Then I have to set push-pull, and the 3 turns + .47uf cap to resonate at 3rd harmonics below 55kHz, which is 18.33kHz.
3.  The resonance frequency then would need to be at the 60th or 63rd harmonics of the 18.33kHz.

Am I missing anything here magpwr?

Thanks much in advance.
LP

hi lacphong,

I think you are confused.If you mention harmonics then why do you do division instead of multiplication.

Last repeat short version base on old comment-If you got a signal generator/capture Ref feature in digital scope then don't you find out the suitable harmonics of the given higher frequency for the small amplitude.

Unfortunately i am unable to get the correct search of a clear picture around 100year old harmonics formula of Tesla which contain certain whole numbers to use(Drawn like a work of Art,lost for words...) discovered by someone whom is a non technical which contain signature of Tesla himself.I found out about this nearly 1 year ago in a random search which didn't make much sense back then until i compared with Akula dabbling with 2 frequencies then i found a match.

The above is not seen in any of the so call tesla pdf.

Last hint-Waveform output of parametric oscillator cicuit of Akula is messy.Until you apply correct tesla frequency with suitable positioning/cutoff.In the output coil this will come back to proper waveform.

Trust me this is also unheard of in any books or internet.Good Luck.

That's all.
-----------------------------------------

Strangely i did learn many irrelevant words which is unheard of in Eletronics in this forum."I don't know if this is considered a good thing or bad thing"

[Bat1Robin2]

Pwm is happening as the Tesla fet fires on top of the waveform of the push pull drive pulse.  (and that position is adjustable with the pot)
R5 on the schematic
This is the effect that shuts off the fet of the push pull.
This was not planned just happens when you follow the schematic.
90% or more of the output power is coming from the push pull tv yoke.

The tesla circuit adds only to output only in efficiency gain as it shuts down fet at a more efficient pulse width.

Still waiting over a year for efficiency reports from people. 70% here.

[Jeg]

If you connect the drain of the N-ch MOSFET to the +300V power supply, then it will still work as long as you apply +12V to its gate wrt to its source, but that +12V has to be floating, e.g. created by an isolated DC-DC converter, pulse transformer, or these bootstrap caps.

Thanks for the advice Verpies. The attached image uses an isolated 12V for gate driving. Is that what you mean? As i see, drain is connected to load in this case as before. 

If you use a P-ch MOSFET then its source should be connected to the +300V power supply, and the pulses applied to its gate should be going down to +288V.  Anything less than +280V will destroy the MOSFET.
That can be accomplished with a second power supply, e.g -12V connected in series with the +300V power supply or with +288V and +12V supplies, pulse transformer ...or a swinging choke like we've done once with Itsu here.

P-channel driver looks like a simpler solution. I might give it a try as i won't mess with all those separate grounds and isolated supplies. I saw some drawings which use a transistor or a second N-channel mosfet to drive the gate of the P-mosfet. Any comment on this?

[lacphong]

Hi magpwr,

Division is to go backward to find the fundamental frequency if the harmonics frequency known, because I thought the kapandaze coil supposed to resonate at a harmonics frequency of the 4 layers coil.

Come on magpwr, give me some hints on the relationship of these coils... you don't have to keep repeating how to find the resonance frequency with a function generator, I don't have problem with that.  What I don't know is which coil do I do that on?

About Tesla's harmonics formula, are you referring to the one look like a clock?  Does number 3 6 9 ring a bell?  If it's this formula you're talking about, I heard people saying it's a hoax, it's not real work of Tesla.

Thanks again for your info,
LP

hi lacphong,

I think you are confused.If you mention harmonics then why do you do division instead of multiplication.

Last repeat short version base on old comment-If you got a signal generator/capture Ref feature in digital scope then don't you find out the suitable harmonics of the given higher frequency for the small amplitude.

Unfortunately i am unable to get the correct search of a clear picture around 100year old harmonics formula of Tesla which contain certain whole numbers to use(Drawn like a work of Art,lost for words...) discovered by someone whom is a non technical which contain signature of Tesla himself.I found out about this nearly 1 year ago in a random search which didn't make much sense back then until i compared with Akula dabbling with 2 frequencies then i found a match.

The above is not seen in any of the so call tesla pdf.

Last hint-Waveform output of parametric oscillator cicuit of Akula is messy.Until you apply correct tesla frequency with suitable positioning/cutoff.In the output coil this will come back to proper waveform.

Trust me this is also unheard of in any books or internet.Good Luck.

That's all.
-----------------------------------------

Strangely i did learn many irrelevant words which is unheard of in Eletronics in this forum."I don't know if this is considered a good thing or bad thing"