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Author Topic: Kapanadze Cousin - DALLY FREE ENERGY  (Read 11719206 times)

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12450 on: February 26, 2016, 08:33:42 PM »
I'll take it as a no then, that no one here knows of a good reliable way to check on the
most current status of a patent application. :)
I certainly don't know that.

There are several people here who are referring to the high voltage pulse that occurs
after the driving pulse to a coil is switched off, as 'BEMF'.  BEMF, AKA back EMF or counter
EMF only occurs while a driving EMF is applied to a coil. Back EMF is oriented polarity wise in
such a way that it acts counter to the driving EMF. This is why it is also referred to as counter EMF.
When the driving voltage pulse is switched off, the magnetic field around the coil collapses and creates
the high voltage pulse. This is not back EMF or counter EMF, since the driving EMF is already switched off at this point,
so there is no driving EMF to counter.
You are correct...and the current through the coil does not reverse when that "switch-off" voltage pulse occurs.
This is why I do not use these terms myself and I always put them in quotation marks when talking to someone who uses them.

Void

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12451 on: February 26, 2016, 09:37:58 PM »
I certainly don't know that.

Thanks Verpies. It would appear that the patent office doesn't always keep the published status
on patent applications very current, but maybe there is some other way to get the current status such as
contacting the patent office directly.


You are correct...and the current through the coil does not reverse when that "switch-off" voltage pulse occurs.
This is why I do not use these terms myself and I always put them in quotation marks when talking to someone who uses them.

Right. I only mentioned it because it could at least potentially lead to misunderstanding of
what is actually going on in the circuitry. Maybe not a super critical distinction for the matter
being discussed however. :)

T-1000

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12452 on: February 26, 2016, 09:50:57 PM »
Oh, that will suppress all HV spikes but will limit the bandwidth of this circuit and increase the reactive input power.
It's like putting a capacitor across an alternating voltage source.  No real power, but all reactive power.

P.S.
In ideal transformers, windings are not inductors but alternating voltage sources. A capacitor across such winding does not form an LC circuit, despite that it looks that way on a schematic.
It is as if the transformer's mutual inductance consumes the inductance of a lone winding.
That's correct, we are dealing also with series resonance which is reactive power anyway ;)
So the balance need to be in place for the both yoke halves. And about the frequency bandwidth - the LC resonant frequency still need to be adjusted to the range of grenade coil resonance, so I do not see any problem there.

NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12453 on: February 26, 2016, 11:19:09 PM »
quote from verpies:
"Oh, that will suppress all HV spikes but will limit the bandwidth of this circuit and increase the reactive input power."
                                                                                                                                                      end quote.

   All the HV spikes?  What will it do to the one centimeter long (10kV) spikes that are being pulsed from the HV circuit, or Kacher.
  Those KV spikes are going all throughout the induction circuits, as well, and although those spikes are of much higher voltage, they are of much lower amperage. Aren't they also the cause of some of the problems with burnt out induction driver components?  Will the 1500v TVS diodes have any effect on the fets, there? 
  Yes, the 10.000V HV or so is pulsed, I know.

   


verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12454 on: February 26, 2016, 11:40:33 PM »
All the HV spikes?  What will it do to the one centimeter long (10kV) spikes that are being pulsed from the HV circuit, or Kacher.
That's not the same circuit.

Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12455 on: February 26, 2016, 11:42:36 PM »
quote from verpies:
Will the 1500v TVS diodes have any effect on the fets, there? 
 

Nick,

The TVS diodes are 1500W (not volts) rated at a clamp voltage rating below the mosfet's rating.

NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12456 on: February 26, 2016, 11:42:46 PM »
    Verpies:  But, it's still working on the same device. And can be just as damaging as we get into applying higher and higher voltages from the HV circuits, interacting on both of the induction circuits.

   Hoppy: Ok thanks, 1500W TVS. So, will they help at 10000V but at low wattage from the Kacher or HV circuit, which is induced into the induction circuits, and still able to keep the fets happy? Maybe that not a problem? But, it seams to me that some of the burn outs, that some of the guys are experiencing may be from the HV interaction, and not "BEMF". 
  Itsu mentioned that he wanted to avoid using a Kacher circuit.
  The full bridge rectifier diodes can also become a problem, and overheat, as well. So, which are the best diodes to use for the bridge? Remember that Ruslan's 4000w device was frying those diodes, and he had to turn off the second bank of bulbs.

  I'll be ordering some parts to build up the commercial TL494 board, as well as the fet driver circuit. But, I'm still confused about which is the best simplest mosfet driver circuit to use, and which snubber components to use for the fets, also. 
So, any new or updated advice on that is always welcome, especially if the circuits have already been tested and working as expected. 

Dog-One

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12457 on: February 27, 2016, 01:17:48 AM »
Wow, busy day in this thread--five pages since I last posted, quite a storm.

On the matter of the loss-less clamps, this is no doubt a superior design.  Thanks verpies for getting it out there.

The last post I made in regards to Arunas' implementation was to make it more robust so a small mistake doesn't end-up blowing components leading to down time.

There is an advantage to not using loss-less clamps, though verpies listed it as a disadvantage:  Heat dissipation.
I mention this because monitoring the large snubber resistor is an easy way to determine if you are truly getting power flow through the yoke or not.  With the loss-less clamp design, you just see draw at the power supply to be minimal, but it isn't clear as to why.  In effect all the power is being recycled by the clamps, which is a good thing, BUT one might be tempted to just boost input power, which is a bad thing.  At this stage of the game, being able to detect reflected power (from a hot snubber resistor) is important to know so you can take the appropriate steps to change the yoke or the components down-stream of it.  With the snubber design you will know straight away whether the input power is going to where it should or not.  If it is, the snubber resistor will not get hot.  You will see volts/amps on the power supply and know this power is getting through the yoke, instead of being reflected back.

To Nick's point, I don't think any one of us knows for sure where the magic OU is manifesting from.  It could initiate anywhere in these circuits/components and be amplified by the rest.  What I'm confident of is the more we can see, the better chances we have of getting something to work.  Optimizing circuits too soon in this development could easily knock us completely off the path.  Once we get a runner, then we can try all sorts of improvements.  I just don't think now is that time.

Having said that, it is also important to put enough care and thought into the push-pull driver so it doesn't blow up at the slightest loose connection or over-voltage condition.  If a throw-together kind of driver is the only kind that will produce a self-runner, we're probably dead in the water already.

M@

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12458 on: February 27, 2016, 01:35:19 AM »
Verpies:  But, it's still working on the same device.
Yes, but in a different circuit that is isolated by a magnetic barrier - a transformer. 
"Kacher's" HV can get back to the yoke's primary circuit only through some capacitive coupling, which constitutes a parasitic effect in a transformer.

And can be just as damaging as we get into applying higher and higher voltages from the HV circuits, interacting on both of the induction circuits.
The dissipative or non-dissipative clamps act only on the yoke's primary winding circuit.  They will clamp any other undesirable voltages there.  They will not affect the "Kacher's" HV influence on the grenade coil.

Itsu mentioned that he wanted to avoid using a Kacher circuit.
I would be wary of the "Kacher" too as it destroys test equipment. I think Itsu has paid dearly for that.

I'll be ordering some parts to build up the commercial TL494 board, as well as the fet driver circuit. But, I'm still confused about which is the best simplest mosfet driver circuit to use, and which snubber components to use for the fets, also. 
So, any new or updated advice on that is always welcome, especially if the circuits have already been tested and working as expected.
MOSFET driver chips are easy to evaluate by their peak source and sink currents, In/Out voltages and rise/fall times and polarity.  For example the non-inverting driver that Itsu is using can source 9A in 20ns into a 10nF gate capacitance and can be supplied with 15V maximum voltage.

The full bridge rectifier diodes can also become a problem, and overheat, as well. So, which are the best diodes to use for the bridge?
Diodes with the lowest forward voltage drop (VF) you can get.

For very high powers and low losses it is possible to use MOSFETs instead of diodes in a technique known as Synchronous Rectification.
This works because MOSFETs have lower voltage drops than the best diodes, up to a certain current - see the graph below:

verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12459 on: February 27, 2016, 02:05:54 AM »
...being able to detect reflected power (from a hot snubber resistor) is important to know so you can take the appropriate steps to change the yoke or the components down-stream of it.
Interesting point, but guys like Itsu will just place their Hall current probe on one leg of the recovery diode and see the reflected power faster than the resistor can heat up.
For those without current probes, an additional CSR would be needed to sense that reflected current.

Dog-One

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12460 on: February 27, 2016, 03:25:46 AM »
Oh wind me a coil sir...

 :)

magpwr

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12461 on: February 27, 2016, 03:43:27 AM »
It's simple

1) Disable one TL494's internal oscillator by:
     a) Removing the capacitor connected to pin5
     b) Removing the resistor connected to pin6
     c) Connecting pin6 to pin14
2) Connect pin5 of the 1st TL494 to pin5 of the 2nd TL494.


P.S.
I have to ask: Why are you using only one output of the TL494, which has the pins 13 & 14 connected together ?

hi verpies,

I have posted in Akula0083 Light No3 - Dual TL494 recently.

http://overunity.com/14610/akula0083-light-no3-dual-tl494/msg470435/#msg470435

Using only 1 x 74HC132 to drive mosfet driver.The low power/low frequency generator and high frequency interrupter circuit(gates duty cycle in pulse nanosecond) function the same way as dual TL494.

I have tried with flyback core from other brand and Sony ferrite core which match the ferrite  core used in Akula video.Both produce same results.

But like said i do suspect Akula did tamper with ferrite core to create maybe some fractures or cavity within ferrite core.Either by putting core itself in ice then dumping it in hot water or heating core by fire then dumping it in water.I have no time to try this yet since i am almost always involved in experiment.

But those want to go further may want to try 2 identical set of flyback core then characterize 2 different core after carrying out the treatment as describe above.
I do suspect the cavity/fractures within core is the key.


I won't discuss about it further to avoid detour in this topic.Time for soldering Oleg+sergey interrupter circuit today.





Terbo

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12462 on: February 27, 2016, 07:59:23 AM »
The wild guess - https://www.psiram.com/ge/index.php/Steho_Energy_AG ? :)

Does anyone know the patent number for this "Combined Rectifier" device?

Terbo

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12463 on: February 27, 2016, 08:24:20 AM »
Does anyone know the patent number for this "Combined Rectifier" device?

Found it:  Combined Rectifier   EP 2 387 142 A1  (attached)

Hoppy

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12464 on: February 27, 2016, 10:02:53 AM »
 

   Hoppy: Ok thanks, 1500W TVS. So, will they help at 10000V but at low wattage from the Kacher or HV circuit, which is induced into the induction circuits, and still able to keep the fets happy? Maybe that not a problem? But, it seams to me that some of the burn outs, that some of the guys are experiencing may be from the HV interaction, and not "BEMF". 
 

Nick,

The TVS I'm referring to is rated at 1500 Watts, not volts, so yes, any voltage spike over its rated voltage, say 100V, will be clamped.