PopularFX
Home Help Search Login Register
Welcome,Guest. Please login or register.
OverUnity Research > Benches > Vasik041  > Links and Docs
2024-11-25, 23:28:20
News: A feature is available which provides a place all members can chat, either publicly or privately.
There is also a "Shout" feature on each page. Only available to members.

Pages: 1 [2] 3
Author Topic: Links and Docs  (Read 9535 times)
Topic Options img
img  Vasik041
Re: Links and Docs « Reply #25 on: 2022-01-11, 20:57:24 »
Group: Guest
Less known self runner video  and transcript :)

https://www.youtube.com/watch?v=cGHjaMWTVms
   
img  Vasik041
Re: Links and Docs « Reply #26 on: 2022-02-06, 11:12:09 »
Group: Guest
Compilation based on this video https://www.youtube.com/watch?v=FtrXOXKbmOI

 ;)
   
img  partzman
Re: Links and Docs « Reply #27 on: 2022-02-09, 15:09:11 »
Group: Experimentalist
Hero Member
*****

Posts: 1808
Quote from: Vasik041 on 2022-02-06, 11:12:09
Compilation based on this video https://www.youtube.com/watch?v=FtrXOXKbmOI

 ;)

Vasik,

Have you attempted a sim replication of this device?

regards,
Pm
   
img  Vasik041
Re: Links and Docs « Reply #28 on: 2022-02-09, 15:19:08 »
Group: Guest
Quote from: partzman on 2022-02-09, 15:09:11
Vasik,

Have you attempted a sim replication of this device?

regards,
Pm

Hi Pm,

yes, partially (only resonance part)

Regards,
Vasik
   
img  Vasik041
Re: Links and Docs « Reply #29 on: 2022-02-09, 15:22:38 »
Group: Guest
PS Here one related file, I haven't it posted here yet
   
img  partzman
Re: Links and Docs « Reply #30 on: 2022-02-10, 20:00:56 »
Group: Experimentalist
Hero Member
*****

Posts: 1808
Quote from: Vasik041 on 2022-02-09, 15:19:08
Hi Pm,

yes, partially (only resonance part)

Regards,
Vasik
Hi Vasik,

I have not been able to find the sweet spot frequency wise to produce the correct waveforms as shown in the video.  I like you, started with 30kHz which is close to the series resonance of L3 and C2 and have tried various duty cycles but without correct results.

It appears to me that the voltage waveform on UL1 indicates half resonance similar to Class E amplifiers but that just doesn't work in my testing!

Regards,
Pm
   
img  Vasik041
Re: Links and Docs « Reply #31 on: 2022-02-10, 20:50:13 »
Group: Guest
Hi Pm,

You right, L1C1 tuned to approx. 15Khz
AC analysis show that there are 3 resonances in this circuit.
I guess that we need to use higher one, approx. 31 KHz

Regards,
Vasik
   
img  verpies
Re: Links and Docs « Reply #32 on: 2022-02-11, 01:12:14 »

Group: Professor
Hero Member
*****

Posts: 3498
Quote from: partzman on 2022-02-10, 20:00:56
I have not been able to find the sweet spot frequency wise to produce the correct waveforms as shown in the video. 
What mutual coupling coefficient did you use between L1 and L2 ?
   
img  partzman
Re: Links and Docs « Reply #33 on: 2022-02-11, 14:35:56 »
Group: Experimentalist
Hero Member
*****

Posts: 1808
Quote from: verpies on 2022-02-11, 01:12:14
What mutual coupling coefficient did you use between L1 and L2 ?

Verpies,

Originally I used K=.99 as Vasik but changed to K=.999 later on.  A small change in the waveforms but still far off from the video. 

At the 54:40 mark in the video, it can be seen that the voltage on the collector (UL1 in Vasik's schematic) drops below zero reference if one assumes the horizontal line is zero.  I can't seem to be able to read any of the scope trace data.  If so, I get ~68v peak and the negative looks to drop to ~20v.  I plan to insert an IGBT to replace the S1 switch today as I think a reverse collector to emitter breakdown would create this lower voltage level, we'll see.

Regards,
Pm
   
img  partzman
Re: Links and Docs « Reply #34 on: 2022-02-11, 15:52:10 »
Group: Experimentalist
Hero Member
*****

Posts: 1808
For example, here is a comparison of my sim to an enhanced scope pix of the authors sim.  Note the phase difference between UL1 and UC2 (yel and blue) and the shape of IC1 (red) as compared to the author's sim.

Note the dot change on L2 compared to Vasik's sim.

Although not stated as far as I can tell, perhaps the author was synchronizing the IGBT drive with the voltage on UC2.

Regards,
Pm
   
img  partzman
Re: Links and Docs « Reply #35 on: 2022-02-11, 21:28:27 »
Group: Experimentalist
Hero Member
*****

Posts: 1808
Here is an improvement from tweaking the frequency and changes in the S1 switch, but still not quite the same as the original.  I would say that the original sim was done with rather high value on the minimum timestep as evidenced by the poor resolution in the previously posted enhanced sim traces.

At these circuit parameters, the output voltage across C2 will only reach ~400v peak which is considerably lower than the original.  Also the ratio of Uin/Uout Uout/Uin ~ .5 or so.  IMO at this point in time, this circuit doesn't perform as claimed with high COP's.  My main reasoning for this is from an analysis of what part of the time S1 is on does current flow from the supply V1.  It is only when the current is reversed in C1 as can be seen.  This is supposed to be the magic part of the circuit design but at this point in time, I just don't "see" it!

Regards,
Pm

Edit: Corrected COP 
« Last Edit: 2022-02-12, 00:13:27 by partzman »
   
img  Vasik041
Re: Links and Docs « Reply #36 on: 2022-02-12, 12:47:04 »
Group: Guest
Pm,

Thanks for the simulation. The schematic is very sensible, small change in timings have huge impact on the operation mode.

I would like to clarify why I published this.
My belief is that it is impossible build something without understanding how it works. Such probability is almost 0 :)
And so I am studying Akula's, Kulabukhov's etc devices. I think they all can be called Tesla's devices.
Most important features are:
- use of "displacement" current
- use of two frequencies
This setup present good learning possibilities.
It is quite probable that schematic should be modified (see "red" wire on the drawing on the table)
So when we start loading/extracting charge, it become even more complex.
As usual, there are people who claim that they got OU from it :)

Regards,
Vasik
   
img  partzman
Re: Links and Docs « Reply #37 on: 2022-02-12, 15:20:18 »
Group: Experimentalist
Hero Member
*****

Posts: 1808
Quote from: Vasik041 on 2022-02-12, 12:47:04
Pm,

Thanks for the simulation. The schematic is very sensible, small change in timings have huge impact on the operation mode.

I would like to clarify why I published this.
My belief is that it is impossible build something without understanding how it works. Such probability is almost 0 :)
And so I am studying Akula's, Kulabukhov's etc devices. I think they all can be called Tesla's devices.
Most important features are:
- use of "displacement" current
- use of two frequencies
This setup present good learning possibilities.
It is quite probable that schematic should be modified (see "red" wire on the drawing on the table)
So when we start loading/extracting charge, it become even more complex.
As usual, there are people who claim that they got OU from it :)

Regards,
Vasik

Vasik,

During sleeping hours I realized that there was no inter-winding or inter-turn capacitances added to L1/L2.  With such tight coupling, there has to be a significant capacitance between windings which I'll try today to see the effects.  Also, since we are not shown any start up waveforms as best as I can tell, there may be a possibility of variable pulse width in the generator particularly during the voltage ramp up of C2!

I'll also try the extra jumper wire in the schematic.  I remain willing to try until there are no other possibilities left to explore!

Regards,
Pm

   
img  verpies
Re: Links and Docs « Reply #38 on: 2022-02-12, 17:54:57 »

Group: Professor
Hero Member
*****

Posts: 3498
Quote from: partzman on 2022-02-12, 15:20:18
With such tight coupling, there has to be a significant capacitance between windings which I'll try today to see the effects. 
Indeed ...and between turns, too, which makes the winding a frequency-dispersive element.
   
img  AlienGrey
Re: Links and Docs « Reply #39 on: 2022-02-12, 19:14:40 »
Group: Guest
Quote from: partzman on 2022-02-12, 15:20:18
Vasik,

During sleeping hours I realized that there was no inter-winding or inter-turn capacitances added to L1/L2.  With such tight coupling, there has to be a significant capacitance between windings which I'll try today to see the effects.  Also, since we are not shown any start up waveforms as best as I can tell, there may be a possibility of variable pulse width in the generator particularly during the voltage ramp up of C2!

I'll also try the extra jumper wire in the schematic.  I remain willing to try until there are no other possibilities left to explore!

Regards,
Pm
So do you have fishing or anglers emporiums where you live ? simply usr some fishing line as a spacer, all you have to do is work out the spacing, that can be fun with round wire.  8)

Sil
   
img  Vasik041
Re: Links and Docs « Reply #40 on: 2022-02-12, 21:07:35 »
Group: Guest
Quote from: partzman on 2022-02-12, 15:20:18
Vasik,

During sleeping hours I realized that there was no inter-winding or inter-turn capacitances added to L1/L2.  With such tight coupling, there has to be a significant capacitance between windings which I'll try today to see the effects.  Also, since we are not shown any start up waveforms as best as I can tell, there may be a possibility of variable pulse width in the generator particularly during the voltage ramp up of C2!

I'll also try the extra jumper wire in the schematic.  I remain willing to try until there are no other possibilities left to explore!

Regards,
Pm

Pm,

This extra wire makes biffilar coil out of primary and secondary coils (L1 and L2).
Many different modes/combinations possible with such connection.

I don't think that variable pulse width used here, but who knows :)

Regards,
Vasik
   
img  Vasik041
Re: Links and Docs « Reply #41 on: 2022-02-12, 21:30:31 »
Group: Guest
I would like to clarify the point about two frequencies.

I have "discovered" recently that it is possible create asymmetric current in LC resonance circuit.
Asymmetric, I mean to have DC offset while circuit in resonance.
This can be achieved using two different frequency. Frequencies can be in same LC circuit (with changing L or C) or just two LC circuits oscillating on different frequencies.
(Attaching example of such circuit)

There is a hope that this asymmetry can be used to create OU.

-Vasik

PS other examples are  in Selected Basics thread
   
img  Vasik041
Re: Links and Docs « Reply #42 on: 2022-02-14, 18:47:08 »
Group: Guest
Another idea for this kind of setup could be creating voltage and current on some component of the circuit
by different frequency oscillation.
For example voltage on capacitor created by series resonance and current trough capacitor by half wave resonator.

- Vasik ;)
   
img  Centraflow
Re: Links and Docs « Reply #43 on: 2022-02-15, 08:09:21 »

Group: Experimentalist
Hero Member
*****

Posts: 2982


Buy me a beer
Quote from: Vasik041 on 2022-02-14, 18:47:08
Another idea for this kind of setup could be creating voltage and current on some component of the circuit
by different frequency oscillation.
For example voltage on capacitor created by series resonance and current trough capacitor by half wave resonator.

- Vasik ;)

Hi

You are getting close to the STEAP TPU with that set up  O0

Regards

Mike  8)


---------------------------
"All truth passes through three stages. First, it is ridiculed, second it is violently opposed, and third, it is accepted as self-evident."
Arthur Schopenhauer, Philosopher, 1788-1860

As a general rule, the most successful person in life is the person that has the best information.
   
img  AlienGrey
Re: Links and Docs « Reply #44 on: 2022-02-18, 10:27:16 »
Group: Guest
Vasik hi some where on one of your many threads you Published a katcher test circuit  a TL494 with an extra variable resister in the frequency circuit, and some other Katcher circuits, have you a link to them as I can no longer fined them and could you explain in some detail how to obtain standing waves from such a device please

Regards Sil
   
img  Vasik041
Re: Links and Docs « Reply #45 on: 2022-02-18, 13:39:39 »
Group: Guest
Quote from: AlienGrey on 2022-02-18, 10:27:16
Vasik hi some where on one of your many threads you Published a katcher test circuit  a TL494 with an extra variable resister in the frequency circuit, and some other Katcher circuits, have you a link to them as I can no longer fined them and could you explain in some detail how to obtain standing waves from such a device please

Regards Sil

I guess you looking for this
https://www.overunityresearch.com/index.php?topic=4158.msg93853#msg93853

-Vasik
   
img  AlienGrey
Re: Links and Docs « Reply #46 on: 2022-02-19, 13:30:35 »
Group: Guest
Quote from: Vasik041 on 2022-02-18, 13:39:39
I guess you looking for this
https://www.overunityresearch.com/index.php?topic=4158.msg93853#msg93853

-Vasik
Yes that's the one, many thanks, i have a PCB lay out if any one wants to play.
here is a board i modified with some under track surgery the output transistor with the gated FET driver
is a bit crap as if it's unplugged the 2SC5200 Coil driver is permanently turned on perhaps the FET could be replaced with a PNP none inverting device or just removing and driven direct from the driver chip on the main board.
   
img  Vasik041
Re: Links and Docs « Reply #47 on: 2022-02-26, 10:18:48 »
Group: Guest
From my archive, year 2014
   
img  AlienGrey
Re: Links and Docs « Reply #48 on: 2022-03-04, 11:03:07 »
Group: Guest
Vasic further back you pointed to a design of Igorek he uses a catcher of  G2  as 1/2 wave, 1 MHz that's modulated by G1 as 1/4 wave at 400 MHz, shouldn't the G1 be 500 KHz ?

Also the equation is wrong the 1000-400*2 it should be like this (400*2) the portion in the brackets should be worked out first.
it's quite mind boggling   :-\

Sil
   
img  Vasik041
Re: Links and Docs « Reply #49 on: 2022-03-04, 13:47:32 »
Group: Guest
Quote from: AlienGrey on 2022-03-04, 11:03:07
Vasic further back you pointed to a design of Igorek he uses a catcher of  G2  as 1/2 wave, 1 MHz that's modulated by G1 as 1/4 wave at 400 MHz, shouldn't the G1 be 500 KHz ?

Also the equation is wrong the 1000-400*2 it should be like this (400*2) the portion in the brackets should be worked out first.
it's quite mind boggling   :-\

Sil

Hi,

there is non-linearity, so 400KHz is right.

You still haven't read this link
http://mathsfirst.massey.ac.nz/Algebra/OrderOfOp/orderAlg.htm

 :(
   
Pages: 1 [2] 3
« previous next »


 

Home Help Search Login Register
Theme © PopularFX | Based on PFX Ideas! | Scripts from iScript4u 2024-11-25, 23:28:20