Akula0083 30 Watt Self Running Generator.

[TinselKoala]

@TK

If the TL494 can do up to 800KHz, why is it stuck at 300KHz? That was my question in posts past.

TI rates their chips very conservatively. I would trust a genuine TI TL494 chip to run at the _rated max_ 300 kHz stably essentially forever throughout the data sheet's specified temperature and voltage supply range, conforming to the performance graphs in the data sheet.

Just because an insane experimenter or two can figure out how to use the chip at 400 or 800 kHz doesn't mean you should bet your life on it. One of the things I've noticed about these several circuits is that the chips are operated at or outside the limits of the rated performance envelope. Using a TTL chip with a 3 volt supply? Excuse me?

Also just posted this at OUR.

QUOTE
@ION

Thanks for your reply but let me articulate my point with this photo below.

Here you see the actual size of ETD-29 that fits both circuit boards compared to an ETD-34, which is still very small and also fits
the circuit boards. Consider that the ETD-29 ecore is being asked to dish out a good 30 something watts plus looping energy and
compare this to the ccore used in the v3 device that's only putting out a few watts. There is no logic possible to explain any more
clearly.

@All

I have ordered some ETD-54 - Type 87 non-gapped to do my tests. If you are using the ETD-29, maybe consider changing your
load to not more then 2-3 watts to start and then there may be some small changes required in the circuit to lower the overall
throughput. Maybe put just enough load so when the circuit is energized (large caps full) and when the power is removed, the
leds would take at least 2-3 seconds to turn off. That would be one way to choose maximum load with the ETD-29. 

Come to think of it, this one core size comparison, that I did not realize earlier until I had an ETD29 in my hands, now confirms
to me that the x-named41 video was faked 2000%. That little ecore that he held between his fingers, like I have in my hand
right now, could never do the job he is purporting. Wrong core size. So he just spiked his circuit board from under the panel and
faked it, like I had already shown.

It takes time to figure things out. On the way, we discover new aspects that then build on others. Call it a process. If you are
running the AK30 board, you will require more core if yo want to produce the design output.

wattsup
UNQUOTE

Once my larger Ecores arrive I am going to completely disregard the pulse generation part of the circuit because this for me is
not important and I do not trust the Akula schematic. As I show in the below simplified schematic where the real effect can be
properly hunted down.

If with this set-up, the system keeps looping when I remove the battery and the leds are well lit, even if I use my FG on the
mosfet gate, this will at least confirm that looping is possible and then with this once the main frequency is established, this
should then run on its own with a much simpler gate circuit.

wattsup

PS: Had to force carriage returns at the end of lines to make the text not run off the page.

No, if you are using a FG on the mosfet gate, you have to be very careful that the FG isn't powering anything. Some people might not believe that a mosfet gate can leak significant current to/from Drain and Source when the mosfet is operating properly. Watch this:
http://www.youtube.com/watch?v=PKF1r6vwUpI

[TinselKoala]

... and yet there are no replications. Also, Roman's explanations regarding the working principle behind his circuit are gobbledygook at best.
For instance, he says that in his dual generators version the first one generates the signal 'at the ferroresonant frequency' and the other one has the duty cycle of ferroresonance'. 

May I also remind you that Roman has failed to make a working circuit when he was invited to go to Germany to demonstrate.
I am saying this not to accuse him of cheating but simply pointing to the fact that he's struggling to make it work as well.



~A

A very important post, bears repeating.
Struggling to make it work, though..... I dunno about that. Look at how many different things work .. for him .. at home. Surely he understands one of them well enough to make it work somewhere else.

Or maybe he understands that stage magic illusions aren't appropriate for close-up table magic demonstrations.


http://www.youtube.com/watch?v=N5k0KqMBYh8

[Vortex1]

Recycling energy of switching spikes due to leakage inductance in a switchmode power supply was the subject matter of many published engineering featured articles and papers back when I was designing switchers for a living in the 80's and 90's .

Many of us were trying to figure advanced techniques to capture that bit of energy rather than waste it in snubbers and MOV's.

It seems to be a lost art these days.

[tysb3]

 and they are reporting it accurately and honestly,
but ignorant people don't listen them and are doing useless work, verifiable, repeatable and with great understanding of fundamentals both conventional and speculative but without OU

[avalon]

and they are reporting it accurately and honestly,
but ignorant people don't listen them and are doing useless work, verifiable, repeatable and with great understanding of fundamentals both conventional and speculative but without OU

... and the Sun shines in purest delight when roosters nest without looking sad....Here comes OU.

We too can bullshit just fine.
Can we please just stay on the subject.

~A