Kapanadze Cousin - DALLY FREE ENERGY

[NickZ]

  soliman:
  Welcome. Your results sound interesting. And that you are using the Stalker circuit, using no snubbers and have no mosfet over heating problems.
  Can you mention what type of load you have on, and what type of mosfets you are using?
Your drain signal spikes are over 300v, yet you mentioned that the mosfets are NOT heating up.
Sounds too good to be true. But, I hope that the fets can stay cool even at higher loads as well.
   
   I was also using the Stalker circuit that has no snubbers, at first. But, my fets were getting too hot. My spikes were going over 350v with no snubbers on at all.
   
  To me your signals look great. They are similar to mine, and as I have mentioned previously, some ringing on the flat top of the square wave signal is needed.
   However, it would be good to know and understand the reason why your fets aren't getting hot, even without any snubbers.
As that is one of the main problems and issues that some of us are having here now. 
  As far as my circuit goes, the bigger and higher wattage bulbs used as the load, the hotter the snubbers, or fets get.
  So, it's good to see that your results are different. Perhaps you can post a picture or a video of your device.
 
   Below is a scope shot of Stalker's drain and gate signal.
 
                                                                                                                                            NickZ

[MenofFather]

  soliman:
  Welcome. Your results sound interesting. And that you are using the Stalker circuit, using no snubbers and have no mosfet over heating problems.
  Can you mention what type of load you have on, and what type of mosfets you are using?
Your drain signal spikes are over 300v, yet you mentioned that the mosfets are NOT heating up.
Sounds too good to be true. But, I hope that the fets can stay cool even at higher loads as well.             NickZ

May pushpull transistors also not hot on resonance or on small current without snubbers. Or maybe your transistors is fake from aliexpess maybe?

[TinselKoala]

In that Stalker scopeshot above, there seems to be something strange going on. Because it appears that the Drain signal turns cleanly ON (goes low and stops ringing) about 5 us _before_ the Gate signal goes HIGH. There is a little switching transient on the Gate signal right at that point but it doesn't look like it could be sufficient to turn its transistor on so cleanly.

[itsu]

TK,

that phenomenon you point at was extensively researched way back in this thread here:

http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg475096/#msg475096

The conclusion was:

Drain voltage is not a good indicator whether the MOSFET is ON !
The proper indicator is the current flowing through the Drain of this MOSFET.

So unless we have a trace of the current through the MOSFET we can not determine via the voltage on the drain the correct moment the MOSFET turns on or off.


Itsu

[TinselKoala]

TK,

that phenomenon you point at was extensively researched way back in this thread here:

http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg475096/#msg475096

The conclusion was:

Drain voltage is not a good indicator whether the MOSFET is ON !
The proper indicator is the current flowing through the Drain of this MOSFET.

So unless we have a trace of the current through the MOSFET we can not determine via the voltage on the drain the correct moment the MOSFET turns on or off.


Itsu

That's as may be.... I can perhaps understand how the Drain voltage or current could _lag behind_ the Gate signal, but how in the world does any mosfet know to turn ON _before_ the gate signal rises above the threshold voltage? Is it predicting the future?
Drain voltage -- that is, the voltage drop across the Drain-Source -- goes low when the Gate charge has risen to and goes above the Miller plateau. The scopeshot above shows the Drain voltage going low well _before_ the Gate charge even begins to rise. How can this be?