Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

Nick,

Nobody on this forum knows which config will produce the claimed results, so try them all until you succeed or not. There is no blueprint yet available to self-running success. My setup worked best with one push-pull channel disabled (not because of any channel shoot-through)!

[TinselKoala]

No, friends, none of those people has ever actually made a "self running" circuit. If you actually think they have, you have to be able to explain several things:

1. Why have they not been "suppressed" by the oil companies and governments?
2. Why aren't they rich beyond their wildest dreams?
3. Why are they wasting time posting YouTube videos and collecting ad money from clicks?
4. Why can't anyone here "replicate" their performances, since they have posted their schematics and made these explanatory videos?

.. and a lot more logical inconsistencies.

Now carry on. Your efforts are valuable because you are learning much from your experiences. But you'll never make any "self runner" or OU device by following the directions _and false leads_  from those fakers.

[NickZ]

   Here is Stalker's scope shots, showing the maximum duty cycle of 44.4%. And pointing to the "pause" between push pull oscilations.
   Let me know what you think about that.
    It may be that Stalker has based his ideas for the above circuit, from the TopRuslan 7 schematic, and made some changes and modifications to it as he saw fit.

    I will be using the same or similar snubber set up for my mosfets.
    Possibly  Itsu (our snubber expert) has some thoughts about that, as well.

[itsu]

Nick,

it does not matter how to generate those push pull signals, there are many ways, but i would suggest to stick to a proven circuit like the ones mentioned by verpies.
He goes by the data sheets which is how the manufacturer has designed the chip to be used.

The "pause" you mention is the "dead time" verpies was talking about.
44.4% x 2 = 88.8%, meaning he has a 100 - 88.8 = 11.2% dead time between the pulses.
This dead time prevents the both MOSFETs from being ON at the same time causing a short from your 24V supply to ground via these MOSFETs (burning them out in the process).

I understand 44.4% duty cycle is very reasonable, allthough some say that 33% duty cycle adds more magic  into the mix.


Considering the snubbers, i am not an expert in anything let alone an expert on snubbers, but i only see 2 diodes (MUR460??) across the push pull MOSFETs (IRF3205) in the Stalker circuit, so that is very minimal and i would like to see a scope shot of the Drain signals.

The topruslan 7 circuit uses some more elaborate snubber setup, but you know that i would go for the lossless clamp design from verpies.
You will see for yourself on your scope.

Itsu

[NickZ]

   Itsu:
   I could not get both channels working with Verpies posted diagram. Maybe some one else can get it to work.
The topruslan way may not be the most ideal, but it works for me.
   I will continue with the snubbers and FETs. I can always return to the TL494 to make any changes in the future.
   Perhaps apecore can post a video of his circuit showing how his dead time or duty cycle looks like on his scope.
It would be good to compare it with Stalker's video. They may be very similar. If so, there may be nothing wrong, just another way of doing it.