Kapanadze Cousin - DALLY FREE ENERGY

[magpwr]

  Magpwr:
  What, are you getting off on insulting me, again, with your "old dog new tricks" bit?
  What new tricks. I haven't see anything that is OU, self running, or even close to it, from any of your "new tricks", as yet.
  Every comment I've heard from you towards what I'm doing is an insult. You feel good now?
  Why don't you just SHOW us what you've got going that is so trick, so new and exciting. I can't wait... but I won't hold my breath.
 
  Do you think that you're telling me something that I don't know, after I've been working for over a year with the Mazilli circuit.
                                                                                                                                                                           Old dog.

Dear Nickz,

It's nothing personal it's just that you have not tried alternative signal generating circuit eg:PWM or PLL to know the difference.
And yet you are always asking for new circuit i don't know why?

Time-
Did you know that by using a PWM generator tuning to whatever frequency takes just seconds by turning a pot.

Now what you are doing at the moment in order to get to whatever desired frequency you are insanely adding or removing capacitors like crazy.

Cost $$$-
Believe it a lot your Mazilli circuit ultimately cost more than the PWM generator in the end.

Why because you would have to find more capacitors large or small value in order to get to a desired frequency.

The capacitors does cost more in the end.

But like said i can't stop you even though your approach works but cost more time.In fact it seems no one can change your approach at all.

Good Luck with your experiment.

[Jeg]

Thanks TK,

My cap coil is actually two aluminium foils forming capacitor on the 40mm tube - but connected as a Tesla bi-fillar coil. In other words it is Tesla bi-fillar  coil made of aluminium foils (around 7 turns).

You are looking resonance in wrong ranges. You should look between 40-60Mhz. I could say you a narrower approximate but i need the length of your wire including the cables that you use to connect your coil to the rest of the circuit. Also, if your winding turns are the one next to the other or with gaps, it matters.

An easy way to find your frequencies if you haven't any hf fg, is to pass through your coil a square pulse which you have to vary. At certain frequencies you will notice rise of the high frequency ripple wich is imposed to the pulse. Write down all the rising frequencies after you sweep your coil and you will see that all are related between each other in a harmonic way. From this you can estimate your res freq. 

[Jeg]

Hi Jeg,

yes, like a "grid dip meter".
But then Akula should have searched for minimum amplitude, instead he seems to hunt for maximum amplitude to find the resonance.


Itsu

What can I say. What I was experiencing was no rise at any frequencies. Only slight decreases in certain harmonics! Is that possible to reattach the associated acula's video?

[magpwr]

I am still wondering why PWM is a desired strategy here at all. The TL494 is a very popular chip among solid-state Tesla coil builders even today but it's seldom used as a PWM driver; rather, people use it to make the basic squarewave pulse at the desired resonant frequency, to drive a mosfet bridge ( with a proper gate driver between) which feeds the TC primary. My TinselKoil II uses this strategy very effectively. The 494 isn't able to meet the high frequency demands of a small TC though, but the genuine Texas Instruments TL494 can be made to work at much higher frequencies than it is "officially" rated for.

The SG3525 is a PWM motor controller chip, I have Arduino shields that use that chip to directly drive small motors. I even have a couple of the Velleman K8004 PWM motor driver kits that use this chip; in this service the frequency is generally chosen to match the particular motor you are driving, and then the pulse width is used to control the speed (average power) of the motor.

By far the best strategy for driving resonant circuits (imho) is to use a Phase Locked Loop like the CD4046BE as the basic oscillator, with feedback so that the oscillator "locks in" to the actual resonant frequency, or some multiple or divisor of it as determined by other logic chips, so that the system remains in the resonant state as the actual resonant frequency changes with changing loads, environments, etc. With the appropriate high current, fast, mosfet gate driver chips between the PLL and the mosfets of course. This is the strategy used in my TinselKoil IX (but with discrete transistor mosfet driver rather than a driver chip.)

Perhaps you meant "pf" not "nf" ? At the frequencies you are talking about here, it will still be better to use a mosfet driver after the pulse generator, like TC4420 for example, or a driver stage of discrete transistors, which can provide several amps of current to the mosfet Gate for clean switching.

hi TinselKoala,

The PLL circuit does produce result which surpass the PWM generator circuit.

But there is one small problem in one of kapanadze experiment while using PWM set at around 30% duty set at around 28khz revealed that the kapanadze coil was oscillating at 1/2 the frequency.

Yes it's approx 14.4khz.But the input signal is running at twice the frequency at approx 28khz.

Duty cycle seems to play a part.

If coil is force fed with 49% duty which also means the kapanadze coil got no chance to self oscillate/resonate.


I also tried to use the frequency div by 2 between pin 3 and 4 of pll it was not able to recreate what i was looking for.

Maybe the output of PLL is fed to TL494 clk in which then split the signal.This part i have not tried yet since i am lacking time to be involved in few projects in one go.
I do wish i got 2 of me to do multi tasking.

Using rectified mains voltage from sine-wave inverter revealed that merely using less than 10% duty is required.
Many members still don't get it why Akula was using snubber to protect the 600volts IGBT's.
Snubber isn't required if we are fooling around with battery voltage like 12volts...30volts.

Yes i forgot many were sticking to Ruslan the replicator but with insufficient knowledge in circuit/pcb board fabrication.
People do seem to believe in someone whom DON'T create his own circuit.



Using PLL with suitable i/c to split signal still do not allow anyone to meddle with duty cycle in the end.

--------------------------------

I am lacking time since i am doing R&D for a another project which is on the verge of completion before testing stage.

[Jeg]

Is anyone here agree that Ruslan and Urfa have a real OU devices but the circuits that are published all over the web are false? For me, the most probable mistake is the grenade connections with the rest of the circuitry. There is no discharge happening this way what ever you do. What happens this way is just an imposition of a high frequency to a lower frequency and the result is a big nothing but squared!