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Author Topic: Kapanadze Cousin - DALLY FREE ENERGY  (Read 9750537 times)

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12630 on: March 09, 2016, 11:49:36 PM »
What do you think about the oscillations at the blue drain when mosfet is conducting?
Why do you think now my gate signals are spiking like that?
I don't think these spikes are real. 
If you actually had such voltage spikes on the gate, your MOSFETs would be dead already.

They seem to be measurement artifacts, e.g. due to poor grounding or power rail decoupling..

Offline Farmhand

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12631 on: March 10, 2016, 06:08:35 AM »
Good day all:

Just wanted to post some very interesting reading material: If you want to really get into the basic mechanisms involved with coil resonance(s), I have attached an U.S. patent from March of 2010 dealing with *double* resonant systems, or as some say 'resonance within resonance'.
This is some of the *BEST* reading material I have come across with a plethora of information in one document. You might want to read it a number of times to actually grasp the scope of application........  I believe that this is what applies to the D.S. replication and probably has applications in relation to the Ruslan device as well.

I find very interesting the differentiation between L/C resonance and 1/4 wave resonance........  this patent give an iterative development cycle /method (actual steps involved) of combining the two resonances in one coil for the *preferred* results.

enjoy........

take care, peace
lost_bro
That is an interesting Patent Application for sure, just reading the abstract is enticing. Are you planning to experiment with such an arrangement ? Seems like an interesting thing to mess with. It's a largish document, will take some reading. Cool.

Umm. I see the Applicants name is Patrick D Kelly. Wondering if it is the same Patrick Kelly from the Free Energy devices book.
Oh and the application is from 2010. No actual Patent granted yet ?

P.S. I think Tesla's "Coil For Electro-Magnets" Patent covers what he claims not to know of below.

Quote
[0083] The Applicant herein is not aware of any prior
devices that combine both types of resonant behavior (i.e.,
standing-wave resonance, and L/C balance resonance) into a
single circuit element.

..

Offline Jeg

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12632 on: March 10, 2016, 06:20:08 AM »
I don't think these spikes are real. 
If you actually had such voltage spikes on the gate, your MOSFETs would be dead already.

They seem to be measurement artifacts, e.g. due to poor grounding or power rail decoupling..

I'll check again in case i missed a connection or something.
 What about the initial peak? Does it look normal? It supposed that it would be recycled back to the pwr sup. As for diodes i used an mbr10200 double schotty in one case.   
I used 330uF electrolytic caps connected at the drains in parallel with a 100nF ceramic cap.

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12633 on: March 10, 2016, 09:18:54 AM »
I'll check again in case i missed a connection or something.
I suspect it is a matter of layout more than a bad connection.
Every long wire is an inductor, all large current loops behave as coils (see the purple loop in the diagram attached below).

Do you use starpoint grounding scheme? Do you glue the MOSFET drivers right to the MOSFETs ?  Do you have separate voltage rails with separate regulators that are choked and bypassed with low impedance caps at these frequencies?

What about the initial peak? Does it look normal?
No, it should be clamped at 2*VCC.  Did you follow the dot convention of the primary windings?

Also, there should be no spikes in the gate waveform, ...especially in the middle of its period.
Did you glue the MOSFET drivers right to the MOSFETs like Itsu?  Did you bypass their power supply pins with a cap soldered right across them?  (see the purple capacitor in the diagram attached below).

It supposed that it would be recycled back to the pwr sup.
It will be when the spikes become clamped at 2*VCC.

As for diodes i used an mbr10200 double Schottky in one case.   
I used 330uF electrolytic caps connected at the drains in parallel with a 100nF ceramic cap.
As long as these diodes are fast (Schottky are) and capable of withstanding 2*VCC reverse voltage, then I have no objections to them. 
The caps should be fine, too.  Measure an make sure that the voltage across them is DC equal to 2*VCC most of the time.  This measurement will confirm that you have correctly followed the dot convention of the primary clamp windings on the schematic and that diodes are polarized correctly.

Offline Jeg

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12634 on: March 10, 2016, 10:22:27 AM »



Quote
Do you use starpoint grounding scheme? Do you glue the MOSFET drivers right to the MOSFETs ?  Do you have separate voltage rails with separate regulators that are choked and bypassed with low impedance caps at these frequencies?

No starpoint. I'll see if i can change it.
Mosfet driver (ir2110) is connected with about 20cm cables to its pins.
Yes, my regulators are bypassed

 
Quote
No, it should be clamped at 2*VCC.  Did you follow the dot convention of the primary windings?

Yes i followed the dots.

Quote
Also, there should be no spikes in the gate waveform, ...especially in the middle of its period.
Did you glue the MOSFET drivers right to the MOSFETs like Itsu?  Did you bypass their power supply pins with a cap soldered right across them?  (see the purple capacitor in the diagram attached below).

Yes, a 100nF right across driver's Vcc and gnd.

 
Quote
Measure and make sure that the voltage across them is DC equal to 2*VCC most of the time.  This measurement will confirm that you have correctly followed the dot convention of the primary clamp windings on the schematic and that diodes are polarized correctly.

I will measure it asap and report.



Thanks

Offline T-1000

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12635 on: March 10, 2016, 10:42:02 AM »
Hi verpies,

In regards to MOSFET Driver Layout.png
The R2 should be replaced with fast switching diode to drain gate charge fast as possible. That will kill ringing when mosfet driver switches on its lower internal mosfet for this. The higher internal gate-source capacitance of MOSFET usually is a cause.

The http://www.ti.com/lit/an/slpa010/slpa010.pdf have more info in this topic.

Cheers!

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12636 on: March 10, 2016, 12:52:48 PM »
The R2 should be replaced with fast switching diode to drain gate charge fast as possible.
Following that train of reasoning - why not eliminate the gate resistors altogether?

Offline T-1000

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12637 on: March 10, 2016, 01:00:28 PM »
Following that train of reasoning - why not eliminate the gate resistors altogether?
Each MOSFET gate-drain have maximum peak current which need to be limited on power-on. On power-off the maximum value will not be reached so this is is why it is safe to create direct gate discharge path.

P.S> You can see such implementation in Tesla driver I posted previously.

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12638 on: March 10, 2016, 02:08:04 PM »
Each MOSFET gate-drain have maximum peak current which need to be limited on power-on. On power-off the maximum value will not be reached...
Why will it not be reached during "power-OFF" ?

so this is is why it is safe to create direct gate discharge path.
Since the gate current flows only through R1 during "power-ON" and only through R2 during "power-OFF", why did you recommend a diode in place of R2 ?
By following this train of reasoning - wouldn't the complete elimination of R2, discharge the gate even faster?

Offline T-1000

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12639 on: March 10, 2016, 02:46:46 PM »
Why will it not be reached during "power-OFF" ?
Since the gate current flows only through R1 during "power-ON" and through R2 during "power-OFF", why did you recommend a diode in place of R2 ?
By following this train of reasoning - wouldn't the complete elimination of R2, discharge the gate even faster?
In that case, just build driver board like it is shared and said, then you can see it that works... ;)

The Tesla coil driver works perfectly in my place by the way.

Offline magpwr

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12640 on: March 10, 2016, 02:47:15 PM »
hi everyone,

The last couple of days was merely  circuit testing and testing as shown in my youtube video.

Come this weekend i shall carry actual testing with the kapanadze coil base on 2x L/C resonance at low voltage around 24volts then to mains dc voltage 250VDC.

Using only the 3 turns to kapandze coil.For my case the 250VDC is easily stepped down via 10kv diode which lower voltage by around 50volts to around 200volts(across another 20uf 400volts Russian PIO capacitor) for the Transponder circuit.
In one go i have solved my hv supply headache.

It seem less complicated playing with high voltage and reducing the duty cycle.

I have attached to show the waveform at both the 1.2kv SIC Mosfet gates before and after powering on the 12-220volts inverter which provide the 250VDC
You can see there is hardly any interference from the toroid.

No loseless clamp circuit needed since 1.2kv mosfet gate capacitance is mere 950pf is hard driven via 2.2Ohms 2watt resistor with SS36 or suitable SK diode in parallel direct from UC3825N PWM I/C.

For high voltage supply-

I am using what seems to be world smallest China made 150watt 12volts to 220volts inverter purchased from ebay.The circuit runs at 73khz 40% duty to give 250VDC  after internal full-bridge rectification.The 50hz modified sine-wave is produce at it's internal full-bridge mosfet output.

 
http://www.ebay.com/itm/White-Meind-150W-DC-12V-to-AC-220V-Mini-Protable-Car-Power-Inverter-Adapter-/171598295164?hash=item27f40e307c:g:kG8AAOSw7ThUk9cd

Untested Alternative-

http://www.ebay.com/itm/150W-Inverter-Transformer-Converter-Boost-DC-12V-to-110V-220V-200V-280V-AC-DC/181964657179?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20131003132420%26meid%3Df73bb75459ff474a851f1753b828515b%26pid%3D100005%26rk%3D5%26rkt%3D6%26sd%3D201424524176
------------------------------------------------------------------------------

Lastly before soldering both SIC Mosfet onto breadboard i have forgotten to put 1 tiny bead for one of the Mosfet Gate.

Observe carefully only one mosfet produce the spike across gate.That is the mosfet which i have forgotten to install 1 ferrite bead. :D :D :D

The ferrite bead is the suppressor for high frequency spike.But this bead cannot be used in tesla coil transistor or nanosecond generator mosfet gate at all.It's meant for low frequency PWM.

Please ignore amplitude for Mosfet gate because i am using 2 different 600volts probes.


-------------------------------
After this final tip i shall not discuss about any basic PWM circuit problems.


--------------------------------------
Lastly the black object which i previously thought was a capacitor to Earth for Vasmus device was just a micro switch or push to off switch.

This is seen clearly  in Vasmus 2 video at 3:09 .


Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12641 on: March 10, 2016, 03:54:15 PM »
No lossless clamp circuit needed since 1.2kv mosfet gate capacitance is mere 950pf is hard driven via 2.2Ohms 2watt resistor with SS36 or suitable SK diode in parallel direct from UC3825N PWM I/C.
I must point out, that the lossless clamp circuit is active in the drain circuit ...not in the gate circuit.

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12642 on: March 10, 2016, 04:40:33 PM »
  Has it been proven that the loss-less clamp is a waist of time and effort???
  Why not continue with what has been shown to work, instead of second guessing the outcome of this unproven clamping system with the Akula/Ruslan devices?  Seams like a long derailment of the Ruslan type of replication.
   
   Several of you guys are still using the smaller yokes, instead of the 3 inch one. The small diameter yokes (2 1/2 inch) were not working for Akula on his first tests, and he went for the 3 inch ones instead. Remember?
   
   There are even bigger Tv yokes, like the 4 inch yokes, on the older 34 inch CRT Tv.  More room for the clamp windings, if still interested in going that route.  But, using thinner wire, such as the audio stereo cable, may lead to less amps at the output.

   

Offline verpies

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12643 on: March 10, 2016, 04:43:04 PM »
Has it been proven that the loss-less clamp is a waist of time and effort???
No. Just the opposite.

Offline NickZ

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Re: Kapanadze Cousin - DALLY FREE ENERGY
« Reply #12644 on: March 10, 2016, 04:45:33 PM »
  Really?  And where is the proof of that, in relation to the current tests?