Kapanadze Cousin - DALLY FREE ENERGY

[GeoFusion]

   Geofusion
   Welcome back, we've missed you around here.


   After watching your first new video, I decided to disconnect the 3t and the 168t grenade coils. And I found that I could produce the same RM (Radio Moscow) signal sound as with the grenade connected up. Sort of surprised me at bit, as I've not seen that happen before.


   I'm still struggling with the snubber heating issue, no matter what I do. Can you tell me what snubber caps and resistor you are using for your set up? The snubber caps and resistors?
   Can you also let us know what voltages you get between the fet's drain and source. Please.
                                                                                                            Thanks,
                                                                                                                        NickZ
   

Hi NickZ,

Interesting right? when it happens over the transformer and so there are some out here having some devices based on that method.
Yeah, the snubber heating issue was for me some time ago too and still is a bit, only when in effect and well balanced, it will not burn out but what I can say is the resistors i'm using is what is still heating at certain points.
When I have effect it does not heat up as strong as how it should, I'll have to measure the voltage for you on the bases to give you that answer.
I'm currently using 7.5Ohms ~ 2Watt  resistors for snubber, sometimes I'll raise it till 10 Ohms 2Watt. had many burn outs. that is saving the fets from getting to warm or blow most of the time. Caps are those 0.33uf 630 Poly-metalized caps

There is alot more to try out now and see what will happen,
I'll hint on something, the push pull cicuit or any other mosfet config needs to be able to influence the sinus wave of the Tesla output.
So lets say, if mosfet turns off ( square wave ) then we need to see it also effecting the sinus in the same way .

it's very important that the signals can influence eachother while in operation, that is why we are looking for disruptive results, that si where
things start to get interesting

anyway , I'll hear from you.

https://www.youtube.com/watch?v=bTjNB8pfwR8&lc=z23oyf0z2teezfzceacdp430sa5y2uxi3jytvdfoyjpw03c010c

Cheerz~

[NickZ]

   Geofusion:
  Thanks for your reply about the snubber components. It looks like you followed the specs from Ruslan schematic on that.
   I guess that you are not using the Oleg snubber, also, to help return the BEMF to the input.

   I notice that I can't hear your ringing sound (RM sound), on that last video. Or, is it ringing higher that I can hear?
   11.500KHz is my upper hearing limit.

   What frequency is your Kacher running at, (it's best running frequency), and your induction circuit's best running frequency?
   Just keep the laptop, pc scope, and it's probes away from the HV source. Let us know if you can get it to work right.

[GeoFusion]

   Geofusion:
  Thanks for your reply about the snubber components. It looks like you followed the specs from Ruslan schematic on that.
   I guess that you are not using the Oleg snubber, also, to help return the BEMF to the input.

   I notice that I can't hear your ringing sound (RM sound), on that last video. Or, is it ringing higher that I can hear?
   11.500KHz is my upper hearing limit.

   What frequency is your Kacher running at, (it's best running frequency), and your induction circuit's best running frequency?
   Just keep the laptop, pc scope, and it's probes away from the HV source. Let us know if you can get it to work right.

NickZ,
, the info should be open as it is already on diagrams, no problem.
yes, it's part Ruslan's but originally Akula's mosfet protection setup.
no, not usin the Oleg snubber at all, might try it out to see how it behaves.
I have eliminated alot of components which doesn't allow the effect to take place on the boards,
so lets see if it will or not If i try it out.

Yes, it's above 11.5khz range, not sure but by what i can remember Induction it's almost around ~20Khz there.
Tesla coil must be 880khz -1.1Mhz  on video. Only when Arcing you can hear a bit of the High freq hissing.
Yes, just to keep it safe, last laptop got EMP'd very nasty one, but revived it. The HV probe I have measures it with no problems
and having the 10x probes to the bases to also show what is happening at some point.
Will see to add a additional Amp meter 0-2 or 0-5 amps at input of Kacher controller.

Yeah it's yet again fun journey ahead but need to be careful, output is nasty.

CHeerz~

[Void]

Hi Nick, something to keep in mind is if you have a TV yoke core which has a gap (split into two halves),
this may tend to produce higher peaked switching pulses than a toroid core that has no gap. Having a gap
between halves of a toroid is done intentionally in flyback transformers to create higher voltage
'flyback pulses' (switching pulses). If possible, if you can clamp the two halves of the yoke together tighter,
it may help bring down the switching pulses a bit. Might be at least worth trying to see if it makes
any much difference. I also get those weird audible 'RM' noises coming out of my PWM output toroid
with certain settings, even though my PWM was set to around 20 kHz.  I tried pressing my hand down
tight on the toroid coil windings to see if that makes any difference, but it makes no difference at
all. The 'RM' sounds seems to come right from the ferrite itself. As Hoppy posted previously,
it appears to maybe be a 'magnetostriction' effect. Not sure though if that is the right term.

BTW, many people on the net seem to confuse 'flyback pulses' (switching pulses) with 'Back EMF',
but these are actually two different things. 'Back EMF' occurs when current is still flowing from a
power source through a coil or transformer, and switching pulses occur when a transistor or switch
turns off sharply and the magnetic field around a coil collapses suddenly, creating a switching pulse (flyback pulse),
which also can lead to ringing. Snubber circuits are used to reduce switching pulses and ringing.
They have nothing to do with 'Back EMF'.

I am also at the point now of needing to implement some sort of snubber
setup for my PWM driver board. Nick, I will let you know if I come up with something
that works reasonably well without too much heating of resistors (if I still have posting access here ).
I am not really experienced with making snubber circuits yet so it may take me a little while
to find a half decent solution. I have tried the Allega snubber arrangement, and that didn't seem
to do much to help limit the ringing in my case. I will try going through the steps which Itsu posted
here previously, which I think is just a capacitor and resistor in series, placed across Drain to Source
for each FET? Is that correct Itsu?

All the best...

[itsu]

Hi Void,

yes that is correct, a well calculated RC circuit across each drain / source will be able to counter the ringing.
The flyback pulse (which triggers the ringing) will be a different beast to tackle.

I use 170 Ohm ½W resistors, but it seems the lower the Ohmic value the higher the wattage needs to be.

Itsu