Kapanadze Cousin - DALLY FREE ENERGY

[verpies]

I also show you on a spectrum analyzer the spectrum generated by the Yoke/TL494 system when in resonance and when not.
It seems that it generates a base signal around 14.3MHz  and when in resonance (or just below or above it) a lot of HF noise up till 50MHz 

Remember that solid ferromagnetic Iron resonates at 45.5MHz due to the huge internal 33T magnetic field between its domains, so any sub-harmonic of that (i.e. 22.75MHz, 15.2MHz, 11.375MHz, 9.1MHz, etc...) should be paid special attention to.
Of course the Yoke core probably is not composed of iron powder but of iron oxides with nickel, zinc or manganese, so these frequencies can be shifted.

Normally you would not be able to hear that, but i think it is the source of the hissing sound (via Low Frequency Detection) we hear coming from the TL494/yoke.

The TL494 is not capable of oscillating in the MHz range.
...but MOSFETs could ring there as well as LC parasitics.

To find out whether the Yoke's core is responsible for some of these peaks, wave a ceramic magnet in the vicinity of the yoke and observe if any peaks shift their frequency. 

Warning: Unlike ceramic, NdFeB magnets are conductive so they can affect resonances by eddy currents developing inside them, which is undesirable.

[Void]

Hi void- Is the spin wave and spin field the same think?  I guess you are aware of the experiment by using special antenna :  http://www.zen22142.zen.co.uk/Media/fsi.htm

It is next think I want to try. I have many ferrite rods ready, just not sure what to do with all that  . The ferite should not to be thick, otherwise you will get some sort of hysteresis. This brings me to an idea - what about to use a very skinny "painted" stripes made of black sand?

I was listening E. Dollard this week - eccentric person- but some things he talks about are fascinating. What attracted my attention was the information about the modulation of the statick HV field- and you will end up with very high magnetic field- Something not far to what Ruslan says, what Romanov says etc..

Hi John.k1. It could be that he meant the same thing, or not. Yes, I have seen that article by that guy. It was very interesting
that with a special configuration using ferrite he saw more gain in the received signals. It could well be related to
the spin wave effect for all I know about it. I thought you were referring to something else about the ferrite antenna.
Not sure what might produce better results than the ferrite rod configuration suggested.
Yes, Eric Dollard is a very interesting guy. He has some very interesting ideas.

[Void]

I also show you on a spectrum analyzer the spectrum generated by the Yoke/TL494 system when in resonance and when not.
It seems that it generates a base signal around 14.3MHz  and when in resonance (or just below or above it) a lot of HF noise up till 50MHz 
Normally you would not be able to hear that, but i think it is the source of the hissing sound (via Low Frequency Detection) we hear coming from the TL494/yoke.

Hi Itsu. That's interesting about the 14.3 MHz when out of resonance, and seeing much more high frequency content
when you set the yoke secondary to its resonance frequency. As Verpies suggested, that 14.3 MHz peak may be due to
harmonics generated form the TL494 and the driver FET's switching, and the other high frequency content that appears at
resonance may also be generated by transistor switching at higher current draw, but on the other hand, driving that yoke core
hard from the PWM at the resonance frequency and also the high current flowing in the three turn secondary winding (or whatever
turn count you are using) at resonance must put some major stresses in the ferrite. Whether that is any factor in the high frequency
content you are seeing at resonance or not is hard to say, since switching circuits typically generate a lot of harmonic content, but it
seems worthy of paying at least some attention to. Verpies idea of using the ceramic magnet might prove interesting as well.

[itsu]

I think the cycling is due to the lack of sufficient amperage for the power supply to drive much of anything.  So once it's output voltage comes up, it immediately tries to take the load, dies and the battery resumes powering the system.  If you connected the power supply output to a pair of 12 volt bulbs connected in series, I'm pretty sure you would see the same thing.


Now that is interesting.  I would not have guessed there would be so much high frequency radiation going on.  It appears pretty strong too.  Very surprising.

D1,

again, i kind of understand what you are saying, but this "the battery resumes powering the system" makes no sense to me as the battery is always connected to the system, so why would it "stop powering the system" in the first place?

I will try to do that load test with 2x 12V bulbs in series, but i have to get some.


Thanks,  itsu

[itsu]

Hi itsu,

I got some quick questions:
Why you are using separate battery for +12V power input to the electronics and not voltage stabilizer as in Oleg's schematic? This is making another loop for the kicks coming from the coil back over that battery...
Can you show what is the voltage directly out of looped power supply without diodes and on the battery side?
The fluctuations seems are due voltage difference between output of the battery and the looped power supply.

Cheers!

Well, the separate 12V for the MOSFET drivers ONLY (so not "the electronics") is caused by some oscillations i had when i did had 2x 12V regulators, one for each driver.
These oscillations are solved now, so i could go back to 2x 12V regulators, one for each driver.

I don't want to connect the PS and Batt together without diodes inbetween, so you mean measure voltages without diodes and without being looped,  right?

Itsu