Author Topic: WFC VIC  (Read 290100 times)

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Re: WFC VIC
« Reply #72 on: December 06, 2010, 03:15:05 am »
Now there's also something else ya have to remember here, depending on the test equipment, most meters are not accurate at frequencies over 500Hz. So the current reading maybe not be accurate due to propagation of the meter.

-Tony Woodside-   

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Re: WFC VIC
« Reply #73 on: December 06, 2010, 03:17:29 am »

As you can see the Primary current is equal to the LC current (Prim.=Sec.), this is resonance. I didn't figure in the resistance of the capacitor because it is so low that it's negligible.

-Tony Woodside-

I'm guessing you meant XL current.

You certainly can't calculate LC resonance without C and therefore it is not a resonance calculation at all. 

Pulsing frequency and the gating of it are major factors of the system resonance in my opinion.

Mike

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Re: WFC VIC
« Reply #74 on: December 06, 2010, 04:28:45 am »
@10khz, Capacitor (XC) = 1.6nF
XL = 2pi * f*L
XC = 2pi * f*C
fr = 1/ (2pi * sqrt(LC))
 
Primary = 12.56k Ohms
(Sec.+L1+L2+XC = Rt) = 188.4k + 408.2k + 408.2k + 9.952k = 1014752 Ohms

Primary 12v@10khz = 12/12.56k = 995uA
LC 1kv@10khz = 1kv/1014754 = 985uA

so by adding in the XC you get a difference of 10uA

fr = 1/ (2pi * sqrt(16H)*(1.6nF))

Im using 1.6nF because thats the capacitance of the 3" tube set.
so actually in with these values that Don has, the resonant frequency would be around 995Hz, not 10khz. The resonance that Stan Meyer's talks about isnt resonance as most people think. He used terms that weren't being used in it correct sense.

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Re: WFC VIC
« Reply #75 on: December 06, 2010, 11:10:09 am »
I have a question that I want to be some attention to. A while back I thought this problem over and worked it out and had to come up with a formula for this situation. Well as Stan states in his papers that the chokes act as a frequency doubler, then you cannot use the basic series LC formula 1/(2pi* sqrt(LC)) to find the Resonant Frequency. So i came up with a formula to find this resonant frequency.
Here is an example:
(http://www.globalkast.com/images/tonywoodside/LCcircuit3.png)
if you pulse the Primary @ 5khz, the Secondary will also pulse @ 5khz, the chokes will have 5khz going in but will have 10khz coming out so that the Capacitor will be hit with a 10khz frequency!!!

So for a normal LC non-doubling circuit you would have the following:
Primary pulsed @ 5khz the LC resonant frequency for a setup with the Sec+L1+L2= 9H and C= 1.6nF  Resonant Freq. = 1327 Hz

Now this same set up as a LC Frequency Doubling circuit would give the following resonant frequency:
Primary pulsed @ 5khz the Resonant Frequency = 938 Hz

So as you can see we have a lower Resonant Frequency from the same circuit and the only difference one is configured as a frequency doubler. This has to be accounted for in Stan's setup!!!!

-Tony Woodside-

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Re: WFC VIC
« Reply #76 on: December 06, 2010, 22:21:30 pm »
The 20ma's is what my power supply shows being used.It's not read with a amp meter.That is the actual power going into the primary right from my power supply.
One other point about frequency doubling.It isn't doubled through the chokes,it's doubled because of the blocking diode.The diode creates the double pulse.Even Stan states that fact in his New Zealand video.Also search the net for diode frequency doubling.I was just reading about that fact last night.
I have never seen this doubling effect myself,but I am seeing the frequency cut in half with this setup right now.My frequency generator is putting in 20khz,and I'm reading 10khz at the cell.Not sure what that's all about.I will retest again once I get my scope working or get a new one.These frequencies were taken with a Fluke DVOM.It's got me stumped,because before I would see pulse for pulse.In 5khz and out 5khz.
Don

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Re: WFC VIC
« Reply #77 on: December 07, 2010, 03:06:15 am »
I have seeing the doubling effect however i was using 2 diodes for this. There were two coils one connected thru a diode to the secondary and in series with the cell, and the other (bifilar) connecter to a diode on one side going to the cell positive, and the other side of this coil only connected to the cell negative side. It gave me the exact waveform stan show, but only having tap water. I could not replicate the effect again as the diodes got destructed. they were rated 600v 70amps. I need to buy some more and do more test.. I would need also a better scope to be sure of this. However this schematic i have posted before. Is this one...


 




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Re: WFC VIC
« Reply #78 on: December 07, 2010, 11:41:27 am »
What are these called?

Will a massive ferrite core work for the VIC instead of laminated? Lamination sellers have minimum orders of €500 or 1000KG  :-\
« Last Edit: December 07, 2010, 15:54:49 pm by Alan »

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Re: WFC VIC
« Reply #79 on: December 07, 2010, 16:02:12 pm »
Just a thought, in the picture in post 10, I see what I think is a green  coil between yellow and blue coils. I would assume by looking at the cavity between the chokes that the  dementions are the same between the lower bobbins.  If I'm completely wrong or just ignorant , someone  please shed some light my way and explain what green (coil?) is.  thanks.......