Akula eternal lantern 4

[itsu]

Thanks TK for your insights,

Some very interesting scoposcopy going on here, I like to see this. I hope you don't mind too much if I put in my two pfennigs worth.

.....

The strange soft turn-off in the middle of the drive pulse ...hmm... I'd like to see some more comparisons between mosfets and BJTs before I stick my neck out on that one but I'm thinking maybe just not enough current, although one would think the drive voltage would sag in that case. Another possible culprit would be core saturation, since it seems to be related to the gap in the core.

.....

I found out later and reported it back that even with an air coil i had this "strange soft turn-off in the middle of the drive pulse"
So probably some capacitive coupling between base/gate and collector/drain is at play here.


Regards Itsu

[itsu]

Hi Istu and Void,
Where are you measuring exactly the yellow gate (base) signal ?

Directly at the Function generator output or
directly at the basis of the transistor ?

If you still have 10 Ohms parallel with 10 nF in series at the output of the
FG before going into the base , this RC could really be
Responseable for the sudden switch off or spike in the circuit
As it could ring itsself with its stray inductance by being energized by a pulse...
So please only directly show the signal at the base..

Looking back at the HD video from post #2 i see that Akula's yellow probe is NOT directly on the base, but looks like its on the input (so before the 10 Ohm / 10nF RC):

Regards itsu

[PCB]

This thread came to a rather sudden end in Ausgust and I was wondering were things stand, and what the general consensus is as to whether these "type" of circuit are real or some kind of fackery. I notice there is a lot of activity here "Kapanadze Cousin - DALLY FREE ENERGY", but this is really the same knid of thing and only with much more power.

When I say fackery are we talking about:

1. A glorified Joule thief as TK says, feeding off the stored energy in the tank circuit, giving the appearance of self running. I notice that the 30W version has a very much larger inductor arrangement.

2. Are they feeding of electromagnetic energy in the environment, perhaps local broadcast stations.

3. Something else?

[ILLATIKSI]

I cannot tell for how long Akula's devices managed to run. However, I ran my circuit for a week before manually switching it off.
I have not, however, tried it with a few LEDs attached which may result in a short run time, primarily because I am not interested in creating yet another lantern. I will show a high output device when it is ready.

Anyway, the effect is real and can be harnessed. Akula is not entirely correct in his explanations regarding the nature of the phenomenon, but it exists and can be applied easily.

Have a look:
http://youtu.be/vgYLVyswgeQ

~A

Avalon Hello, I am new to the forum but I've been reading a lot about the subject. From everything I was watching your video I found of the most interesting. I wonder if you've made progress in your tests. Any new news?

I think that a similar effect occurs in following patents: "ENERGY GENERATION APPARATUS AND METHODS BASED UPON MAGNETIC FLUX SWITCHING", us 4004401 and others. The difference is that the switch is realized with magnetic switches and permanent magnets.  They uses FINEMET FT 3H as core, dificult to find, with sharp H-B. I belive this material have lower losses than Ferrite types.

Cheers

[hartiberlin]

New Akula circuit video:

https://www.youtube.com/watch?v=6cSXYeGsO9o

Regards, Stefan.