Kapanadze Cousin - DALLY FREE ENERGY

[verpies]

...or this:

[NickZ]

  I have replaced just about everything, including trying out three new TL494, new resistors, one new driver chip, and both mosfets. All are brand new. I also replaced the 20k pot on the duty cycle controls, with one that I had on there previously which tested ok. A new 20k pot has been ordered, also. I also have a brand new 50k pot that could be used in place of the 20k pot, if needed.
  I also just replaced the 12v voltage regulator, and all its filter caps. Including changing the smaller electrolytic caps it had on, to the 104j caps, as well as all of the 1000uf filter caps.
  As I don't have the new 15v voltage regulator yet, so I'm running the drivers from a separate 12v battery, and the yoke and fets from my 24v PSU.  Still having interference problems, and fets still heating up, even if running them on the 12v battery.

   I now think that possibly because I mounted the voltage regulators on the same board as the TL494/TC4420 drivers, that there is some kind of possible cross interference of some sort going on. As even my hand getting close to the TL chip and duty cycle controller is enough to change the duty cycle settings. So, I just don't know what the hell is going on. And am just about ready to take an axe to the board and whack off the voltage regulator part and it's filter caps from the rest of the PCB.

   Itsu: Thanks much for taking the time to help me out and draw the circuit diagram. It looks like the diagram is exactly how my drivers are mounted and wired on my board.
  I wish that I had bought the TL494 chip from ebay that you had used at one time, instead of making my own. I would still like to order the DC to DC converter, instead of using my own voltage regulators and filters.

  Verpies: Thanks for the info on the drivers not having the same functions circuit. Perhaps that is what I should do and change, to avoid both fets firing at the same time.

   apecore: Thanks for the info on what fet drivers you are now using. Maybe that is the difference between our circuits. Or maybe not. But, it's noted that you were having the same problems, previously. Keeping in mind, that none of the circuits that we have been following may be without faults or missing information.
   I do have another 3 inch yoke which was previously wired and was used for the 12v yoke circuit that I had used previously. This other yoke can be used for the lossless clamp design by Verpies, if needed. When I run out of hair to pull.

[T-1000]

   I now think that because I mounted the voltage regulators on the same board as the TL494/TC4420 drivers, that there is some kind of possible cross interference of some sort going on. Or not, I just don't know what the hell is going on.

Does that circuit have dead time (DT) between flip-flop state?
Did you try primary winding on the yoke with bifilar wires? (the begining of 2 wires to mosfets and the end to the plus)
In worst case scenario you might end up just making new board similar to Geo used... It needs flip-flop + freq + duty cycle control for each channel. And the primary winding on the yoke is bifilar there.

[apecore]

I still have not all details. Just winding direction of extra coil in both cases is same as neighbor layer and the wire length follow same length as L1 in A.S. case and same as L2 in Dniester case.
1- When i m understanding it in the right context...... This is a extra coil outside of the grenade and have same wirelength of the L1 coil?

In addition to Dniester winding method the wire from the middle of grenade go straight to end then L3 is made as usual.
2- I understand...  normal flyback for starting L3

In A.S. case he explained only winding direction under L1 and said about that to be tuned to the half wave. Which end go to the L1 I am not sure and is something to find out.
Is this concerning point 1?.... so length has to be adjusted to half wave or Lambda/2

And the grenade L1 starts in series to extra winding before going to the ground. Plus one of inductor wires is also going to the ground in his case.
3- This point also is related to point 1 and 2?.....seems this extra coil is part of the GROUND wire?....creating half wave (lambda/2) from ground to L1 node.

This creates superimposed standing wave when bouncing to ground point, ... i guess he is using a STAR_GROUND point at his setup where the Null_node (L1) will be.
L6 is in this case the PEAK_node.
And inductor is connected to STAR_GROUND

Just a logical explanation,....  if i do understand it is configured in this way?

Regarding Spectrum analysing of grenades,....i see approx. same peaks as Itsu posted,...... (37.5m/50mm/2.5mm^2 kapanadze grenade)
i guess Itsu hasn't connected one node of his grenade to GROUND and also hasn't completely placed it as a DUT in the whole setup?
This to include the nearby capacitance of the system.
This will have effect on the resonance point.



The attached S.A. shot is from a grenade placed as a DUT and L1 node connected to GROUND.
I modified L4L5L6 in winding numbers in order to increases its LC resonance.

Due this grenade has a wire length of 40 meter its lambda/4 frequenty would be 1.875Mhz.
Without this modification of winding numbers i stay  approx. 200-250khz below the Lambda/4.
Also different connecting strategies will also influence the resonance peaks also.

So perhaps this gives some more inside information about modifying grenade configurations and S.A. shots.

regards

[NickZ]

   T-1000:
   I'm using the same type design for the TL494/TC4420 circuit that Stalker is using currently, but with some minor differences, such as the voltage regulators and filters are from TopRuslan 7, and the Pinoytech design for the connections of the TL494.
These changes were because I was trying to improve the original TopRuslan design which apecore also had to change.
   The pinoytech design is similar to how I'm connecting the TL494, and fet driver circuits.  I've posted all those diagrams previously.

  Below is what my signals look like, from the original TopRuslan design, as well as how they look now, similar, after all the changes. Not much difference, no matter what I do. Fets are both on at the same time, depending on controller settings.