Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

I can only suggest to use components (MOSFETs) which can handly these spikes, like IRFP460 MOSFETs and run them without snubbers like stalker seems to do.

Regards itsu

Nick,

I tend to agree with Itsu about using higher voltage rated mosfets. I suspect that if there is any truth to the self-running claims that the 'nasty' looking ringing waveforms are the way forward.

[NickZ]

  Itsu:
  I don't know what you mean by, that there is something wrong with the scope shot of the traces, that I should be able to figure out. Do you mean with the voltage readings?
  The main problem is that all the different resistors I've tried get smoking hot in less than one minute. That is a big problem, which I don't have a solution for. Even the 5 watt resistor for the Oleg snubber gets hot.
   So, it's not that I don't want to use the snubbers, it's that they all go up in smoke. Even with a smaller load on, but especially with 200 to 400w worth of bulbs on.
  In any case I'll figure out what to do about it, I'm just reporting back what I'm seeing. But, what I mean is that the snubbers ARE needed. But, they have to be kept at use able temperatures, or they won't do they're job.
  My smaller 1/2 watt resistors (like yours) were chard, in less than one minute. So, maybe there has to be a compromise, somewhere, as I've always had some kind of heat issue, with either the fets, or the snubbers resistors. 
   Possibly the carbon resistors don't come in the bigger than 2 watt values. But, not sure about that.
  Any way, I'm just reporting back. I know that you may not be able to help me any further on this problem. That's ok.
  I appreciate your help.
                                   NickZ

[Void]

Hi Nick. In your scope shot, CH1 is showing as being set to 5V/div, and CH2
as being set to 200mV/div? CH1 is only peaking at about 9.4V? CH2 at 300mV peak or so?

Something appears wrong for sure. If you press the CH1 and CH2 buttons on the scope,
make sure the channels are configured for x10 probes if you are using x10 scope probes.
All the best...

[itsu]

Itsu:
I don't know what you mean by, that there is something wrong with the scope shot of the traces, that I should be able to figure out. Do you mean with the voltage readings?

Yes,  like Void mentioned too, those voltage values (data) do not add up when you are using 24V input.
Also look at the CH2 ground (0) level indicator (the blue 2 marker on the left), it is in the middle of the square wave amplitude, it should be on the bottom like CH1.
Did you have your probe ground lead connected securely?

The main problem is that all the different resistors I've tried get smoking hot in less than one minute. That is a big problem, which I don't have a solution for.
Even the 5 watt resistor for the Oleg snubber gets hot.

My 2W 1K Oleg snubber also gets hot (80°C) when using a small load on the grenade (40 - 100W bulb), it gets better (lower temp.) when adding load, like 200 - 400W bulbs.
Also the input current drops when adding load.

So, it's not that I don't want to use the snubbers, it's that they all go up in smoke. Even with a smaller load on, but especially with 200 to 400w worth of bulbs on.
In any case I'll figure out what to do about it, I'm just reporting back what I'm seeing. But, what I mean is that the snubbers ARE needed.
But, they have to be kept at use able temperatures, or they won't do they're job.

I thought you mention that you do not see the "effect" when using snubbers, or much less, so therefor i said that you have a problem with which i cannot help you with as without snubbers you will fry your MOSFETs.   Only some higher voltage rated ones will probably work.

My smaller 1/2 watt resistors (like yours) were chard, in less than one minute. So, maybe there has to be a compromise, somewhere, as I've always had some kind of heat issue,
with either the fets, or the snubbers resistors. 
Possibly the carbon resistors don't come in the bigger than 2 watt values. But, not sure about that.
Any way, I'm just reporting back. I know that you may not be able to help me any further on this problem. That's ok.
I appreciate your help.
                                   NickZ

My ½w RC snubber resistors are not heating up, not with a small load (40W), not with heavy load (400W), but they have higher ohmic values (170 Ohm) then yours (46 Ohm).
It could be that you need to re-measure your ringing signal with your new scope (without any snubber components), it could be that we end up with some higher valued  resistors which would have less current (and heat) going through them.

Finally, i also have a varistor across each drain / source, it could be that those have a limiting effect on the spike so the RC resistors are doing less work.
Perhaps you could install your varistor (14D271K , see  http://overunity.com/12736/kapanadze-cousin-dally-free-energy/msg509339/#msg509339) again across each drain source.


Itsu

   

[AlienGrey]

  David:
  The fishing line idea has been tried on the Kacher's secondary coil. But it does not need to be 2MHz, as 1Mhz to 1.7 or 1.8MHz is normally high enough. Mine is running at 1.1MHz.


 
   The second pic is from Stalker, and is what his best fet signals look like. His peaks go from 238v to 262 volts.

I think Dave is trying to keep his device as slim as he can if his Katcher is using 5 or 6 mm cable  and he winds T1000s charger winding it will be huge in diameter so I think he is using 1mm copper and packing the 5mm or 4mm (whatever) with fishing line must be a hell of a job winding it is all I can say.

Have any of you guys ever got in volved with transmitters you know a load coil and the tuned aerial length, ? ever touched one when some one is transmitting?  fun ain it