Kapanadze Cousin - DALLY FREE ENERGY

[DavidWolff]

Nick Z what do you mean void got his way with the alien ? does the Dailly device work or, what i am asking is what can I build that works ?

David Walff

[NickZ]

   Itsu:
   Both fets are showing the expanded ringing signal is now at 1.85 div, at the .5us setting, with no snubber caps installed. 
This is with a 12v battery with only 11v on it, and a one foot cable going to the device switch.
I have 240 volts peaks, at full duty cycle, while using a 100W watt bulb as the load.
  At: 1.85 div, times .5us is O.925. Calctool gives me 1.08MHz.
  Correct?

[itsu]

Nick,

so they are equal now?  What has changed as you earlier said that the ringing frequencies were different!!


Anyway, 1.85 div.  (thats very precise) times 0.5us/div. gives indeed 0.925us which points to a ringing frequency of 1.08Mhz.  Correct.
This is half the ringing frequency you give me earlier!?
On the other hand its much closer to the ringing frequency i have in my setup (820KHz).


Now we start again at step 2, try to half this ringing frequency by adding a capacitor across the drain / source.
Give the value of this capacitor, then we can continue the procedure.


Itsu

[NickZ]

   Itsu:
   Possibly what has changed is that I am not using the same older fets, which showed a difference between them. And possibly also that I'm using a much lower voltage. I ran the battery way down to 8v, then let it recover to 11v, and only turned it on for a few seconds for the snubber tests without the caps. But, I needed to practice doing all this using the older still working fets.
Other than that, the battery was run from one foot connection wires, instead of two foot connection cables from the PSU. So now, both peaks from the snubbers are very similar in voltages, and ringing frequencies.

   These are the things that most of us have not done in the past.
And hopefully will make a difference, in being able to "crack this nut".

I'll let you know about what caps are needed to 1/2 the ringing frequency. But, more than likely the 102M caps will still be used.
   Again, thanks for your help. I couldn't of done this without you.
                                                                                                Nick
   

[NickZ]

   Dog-One:
   I checked about the location of the scope. The Costa Rican postal service says that they have not received it yet.
And that it can take 2 to 4 weeks to arrive.  So, I'll check back with them, in a week or so, now that I have their number.
   The package may be taking it's time, but possibly is not lost in the mail, as yet.
                                                                                                                       Nick