Kapanadze Cousin - DALLY FREE ENERGY

[itsu]

Just now, and i am really impressed of this layout. Well done Itsu!

1. You have said that you supply with 15V your tl494? Then wouldn't be more appropriate to feed your drivers also with 15V instead of 12V?

2. At 1.34 you speak about the 28T from the grenade which is rectified. Do you mean that you have connected them together in series (grenade+28T) and then you connect your rectifier at the ends of both coils connected?

3. Do these two brown wires on your board carry tl494's output signals to your drivers?

Please attach your drain signals when you have some time, in comparison with your gates.
Looking forward to copy your layout!!!

ps. Cool mosfet's working temperature, happens also to my lossless build. It is surprising enough if you have used to boil eggs over your mosfets with the dissipative designs!!! 

Jeg,

the TL494 board is what i had, but you could be right, better to lower it to 12V also, the high input  voltage to the drivers worries me somewhat. (i would like to keep the drivers at 12V because of the 18V TVS's across the gates).

Yes, 28 turn coil is in series with the Grenade, then a FWBR.

The brown wires are RG316 coax cables which connects the TL494 output to the drivers yes.


Itsu

[Jeg]

Thank you Itsu

Now that you mentioned it, i haven't see any tvs yet clamping at its nominal rated clamping voltage. I feel that for gate protection a zener would work more predictable.

[itsu]

Drain/gate screenshots of the new layout, as mentioned, they look similar as the old layout ones.

Yellow/blue is drain/gate MOSFET 1
Purple/green is drain/gate MOSFET 2

First screenshot is when idling/not in resonance, second screenshot when in resonance.

I think i could improve on the layout on the yoke windings, but the present resulting output will do for the moment.

Itsu

[NickZ]

  Itsu:
  What does your output actually do. Can it light any of your 100w bulbs without the HV? 
 
  As there's more than one way to connect the two induction circuits together. Or, they can be run separate from each other.
  If the 168t coil is not connected to the yoke, and is used as just the output coil, like some diagrams are showing, the output is much lower. But, will the "effect" be manifested, or not? That's the main question. 
   Have you gotten your HV circuit or Kacher going yet, along with this new set of yoke drivers?

   I've been using the Tv horizontal output transistor C5297 or similar, as my Kacher's transistor, as that is what I had on hand.  It's 1500v, 8A.  Do you think that these type of transistors can be connected to the rectified yoke output of the 28t/168t yoke/grenade circuit. And beprovided with the full rectified output from the yoke?  They get pretty hot already with no fan and just a heat-sink,  even with just the 24v and 10A input from my PS,  drawing around 2 amps? Why do they get hot?
   
 
   Do your diodes at the full bridge rectifier get hot, or not?  Do they get hot when using 300-400w or even 1000w loads.
  Do your IRFP260N get hot at higher loads?
  As at a 40w load my circuits stay cool also, at that low of a load.
However your 40w bulb seams to be only lit to about 1/2 brightness, or so. Is that correct, as it hard to tell on the video?
  That 40w load on your system, is not enough of a load to know if the system will also work at 1000-2000w, or not. Without overheating, or burning up.
  So, can you please answer my questions, when you can.
                                                                                      Cheers.

[verpies]

The brown wires are RG316 coax cables which connects the TL494 output to the drivers yes.

These little coaxial cables are potential places where reflections can occur and they should be terminated with resistors like described in section 12.10.1