Kapanadze Cousin - DALLY FREE ENERGY

[AlienGrey]

Nick,

ok, try the 222 (2.2nF) it could work, but as can be seen in the linked procedure, lateron you need a cap between 4 to 10 times of 1/3th of that 2.2nF cap. (if that really halfs the ringing)
1/3th of 2.2nF = 733pF          4x 733 = 2.9nF      10x 733 = 7.3nF,  so a C between 2.9 and 7.3nF

https://www.maximintegrated.com/en/app-notes/index.mvp/id/3835


Anyway, will work that out when you are ready.

Itsu

note this pic your wanting to remove oscillations all you need to get rid of are the spikes you need to keep the ringing ! or just give up because your destroying what you need ! YOUR DISTROYING THE DIPOL !!!!!!!!!!!!!!!!!!!!!!!!!!!! its why your getting no where, got it now ?

It might be an idea to increase the ringing to obtain more F you can do this by reducing the on time. got it ?

PS why is reb waveform off when it should be on / is it inverted ?

[itsu]

No need to shout, i get it, i just don't believe it or care.



Concerning your PS, we have been there before, just look it up, see the below link (conclusion) and go back from there.

http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg475188/#msg475188


Itsu

[NickZ]

  Alien Grey:
  You sound like you might need a Snicker Bar, or two...
  You would be more believe able if you were showing us what you mean, instead of just saying it.

   Itsu:  Ok, well last night I was up till late again,  checking out the 1/2 frequency when trying out the different caps.
It seams that the main highest peak, which is the main issue here, is what to focus on. And for my set up, the blue 103 (2000v) cap worked best in reducing this main 120v spike. Although it no where near the 200v limit of my fets (IRFP260N).
But, as my two channels are always showing a small difference in amplitude of this ringing, I maybe need two different caps on there. So, I'm still looking into it, but it looks like a doubling up of the snubber caps is what works best for me.  That is, so that the channel with the higher peak on it, that was always overheating it's Fet, is tamed down a bit. And it takes a 222 and a 103 capacitor, (both) in parallel to it, to drop the ringing. But, the main idea is to just drop this peak so that my fets don't go up in smoke. In seconds...
   The Siglent scope should be here shortly. And we can get into the tuning of this more accurately. This peak thing is what is hanging most everyone up, that has tried to get this far.  But, there's the output side of things, to think about, also.
How much juice will reducing this peak take away from the output?  Hopefully, not much at all.

[itsu]

Nick,

i believe the ringing is causing the heating up of the MOSFETs, not the single spike.
This single spike will (if exceeding the MOSFET voltage rating to long) damage the MOSFET after a while.
So both need to be taken care of.

Tame the ringing, then you probably have found the heating problem.
Then see if the remaining spike is to big for your MOSFET and if so, take care of that spike then.

Itsu

[Hoppy]

Nick,

If you still suffer from overheating when you have optimised the snubbers, then re-build your outputs so that the drivers are much closer to the mosfets (ideally no more than 1cm. Use small carbon or metal oxide (0.6W) for the gate resistors.