Kapanadze Cousin - DALLY FREE ENERGY

[Dog-One]

... like this???    https://www.youtube.com/watch?v=qC2fKEl12i0

Except, we could do without:

... a project that may or may not work and if it doesn't work, you might get to see this video

[Hoppy]

Kapanadze coil? It is always same, 3 legs with two ordinary layers each, each leg is opposite to previous in middle.

With respect, that does not answer my question.

[itsu]

I kind of completed the PLL part on the breadboard and made some measurements.

As i have not installed the Kacher MOSFET (ended at the UCC27321 driver) and the IR2184 driver, i simulated the feedback from the yoke
(via the current transformer) with my FG which i put at 15Khz (that seems to be the new inductor (bifilar coil) resonance frequency).

I setup the various pots/caps for a frequency locking range between 9 and 21 KHz so with the 15KHz in the middle.
C5 is 320pF (220 + 100), C2 is 6nF

The screenshot shows:

Yellow trace is output pin 4 (74HC4046)
Blue trace is   comparator pin 3 (74HC4046)
purple trace is feedback pin 14 (74HC4046)
green trace is the output pins 6/7 of the UCC27321
All referenced to ground

Video here: https://www.youtube.com/watch?v=pnEXk7qnRKE&feature=youtu.be


Regards Itsu

[TinselKoala]

Multiple series connected windings having partial magnetic flux overlap with interdependent transmission line bandwidth stability.  Not your typical Electronics 101 project by any means.  Herding cats would be far easier.

Seriously TK, you should jump into the fray.  In the end it's only time and money, something everyone will have give up.

I might still have some time left, but I've run completely out of money. I'm limited to using parts and equipment I already have on hand, for the most part. Sometimes people send me stuff to play with (like the generous donation of the DSO from people mostly here on this forum, thanks again!) but I don't even have enough of the right kind of wire to wind these coils. I've been thinking about making a coil version using #27 magnet wire, of which I still have a good amount, just to see if I can get it to ring (resonate) using any of the methods I know about. But I'd like to see some agreement as to the winding directions of the various layers before I start.

For those of you with DSOs, you should be able to try another method, and grab the result with the Single-Shot sweep mode of your scopes. Connect your scope probe across the coil, with the tip at the "top" or HV end and the ground probe at the other end. Arm the scope's Single-shot mode. Use a battery, like a 9V battery, and a couple of wires to "strike" the coil with a brief pulse. You should be able to observe the ringing after the trailing edge of the battery pulse. The ring frequency is what you are looking for. Here's an example shot from my scope showing such an experiment, with a ringdown frequency of 342.5 kHz.

[Dog-One]

Video here: https://www.youtube.com/watch?v=pnEXk7qnRKE&feature=youtu.be

Excellent work and video demonstration Itsu.  I only wish you were the one to develop this device originally instead of Ruslan.  If that were the case we would all have this thing replicated and probably highly optimized by now.


Something I mentioned quite a while back on this thread.  I purchased a pair of 40Hz to 200kHz inductive pickup transformers to use specifically for monitoring the current in the induction heater coil.  These devices work extremely well and would interface with the LM339 just fine without any fear of overvolting the comparator chip.


On the behavior of your bread-boarded circuit...   This particular circuit does not burst the Tesla coil.  It only outputs a single impulse at the proper position within the lower frequency signal.  It would seem to me, this is a relatively decent starting point.  However, I suspect with a burst output of controlled width having the exact frequency resonant to the Tesla coil, superior performance could be achieved.  Someone mentioned Ruslan had improved his circuit to do this.  I have also done it using a micro-controller implementation.  After getting my grenade coil re-wound for the fourth time, I will make an attempt to demonstrate this as a comparison.