Author Topic: WFC VIC  (Read 290101 times)

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Re: WFC VIC
« Reply #224 on: March 06, 2011, 22:11:09 pm »
Here's the front and back of a VIC card
Enjoy!!!
Don

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Re: WFC VIC
« Reply #225 on: March 06, 2011, 22:33:56 pm »
Thanks for the pic. And sorry, if I am at times a bit pushing. But it seems, like you sometimes do make statements, which you correct later, So I just really wanna go sure. I know, it quickly happens, that one has wrote something, that wasn't as it was actually meant.
For example, you said in the beginning of this thread:
Quote
The resistors were all tied together as one.They seemed to be across the feedback winding.
Now, you state that the resistors were across the primary.
Or about the freewheeling diode:
Quote
I had the same results as you with the diode across the primary coil,so I took it out as well.I'm not sure if there was one in Stans setup.
Now you state, there was one in Stans setup.


Probably you went again to see Stans stuff after these statements. But I think you will now understand why I'm asking these questions, as I just want to be sure. As even slight differences in the actual circuit can make huge differences in it's operation.



I know, I'm complicating things sometimes.
So I will try it again with the resistors. As easy as possible.
If the current is so low in the primary, that the voltage drop over the resistors is smaller than the diode voltage, it does make sense to have the resistors there, as by that you assure that you take less energy out of the oscillating circuit than just with the diode alone. The principle is simple. The lower the reverse voltage drop, the less energy you take out of the resonant circuit during pulse off. The best would be a short circuit over the primary during primary off.
So if he actually really had both (a diode and the resistor) in parallel, then it certainly is not in a flyback mode. As the diode would prevent any flyback effect. And the resistor(s) would then only make sense, if the current in the primary due to the resonance in the VIC is small.
And if you have both diodes in the primary driver circuit, you will obviously not have any problems with the transistor voltage, as the freewheeling diode protects it during pulse off, and the series diode protects it during pulse on, and at the same time this also prevents any big power loss in the resonance circuit. The freewheeling diode (with the resistor(s)) make sure, there's no big loss during pulse off, and the series diode makes sure there's no  big loss during pulse on.
« Last Edit: March 06, 2011, 22:52:30 pm by Kali_ma_Amar »

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Re: WFC VIC
« Reply #226 on: March 06, 2011, 22:51:51 pm »
That first quote was when I thought the primary coil was the feedback coil.That statement was made early on before I had more time to check out the coil pack better.
 
The second quote was made before I found the diode on the vic card at a later time also.
 
Everything I write now is just as I have found it with Stans stuff.If I'm not sure of something,I will state that it's my opinion.But if I say it's how it was,you can be sure that's how it was.
 
These post do go back some time now,and so much has been learned since then.
Don

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Re: WFC VIC
« Reply #227 on: March 06, 2011, 22:55:11 pm »
Yeah, I know, we all progress. I just sometimes want to be sure. I beg for pardon for that. As for me, I'm not up to date about your story, so it's sometimes hard to tell when I'm reading in older posts, if the things in there are still valid or not. Therefore I better ask twice, to get the newest update.  ;D
Edit: I just discovered, that when I visit this site by an anonymizer proxy, then I can see Don's pics at the beginning of this thread. This is really strange. Something has to block the reception of these pics from here directly?!? And it's only Dons pics. All other pics from the beginning I can see...Really strange...
These pics now make quite a lot of things clearer, and would have spared quite some questions if I could've seen them before. Sorry Don, for asking that much.
« Last Edit: March 06, 2011, 23:32:32 pm by Kali_ma_Amar »

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Re: WFC VIC
« Reply #228 on: March 06, 2011, 23:36:40 pm »
The primary coil was measured with the resistors removed.All coils were measured unconnected from the rest.
All of my voltage measurements were taken at resonance.When pulsing the primary coil with square waves,you get sine waves as an output of the secondary.I would have to retest to see if the step up ratio shows up.
Don
 
Update:
I just tested my coil setup and this is what I came up with,
 
100 turns primary,  1000 turns secondary
12 volts dc applied to primary
 
Now I performed two test,one without bifiller choke coils on core (not connected to anything)and the other with chokes off core,then tuned to resonance with scope.
 
First test without chokes showed @ 120 volts out of secondary, just hooked to scope leads, and resonance was at 57 khz.This gives you a 10:1 stepup.
 
Second test with bifiller chokes on core and not connected to anything, gave @ 250 volts out of secondary,just hooked to scope leads, and the resonance was at 32.8 khz. This gave a stepup of 20:1.
 
So there is something happening with all coils on the core.It doubled the voltage out of the secondary.
 
Don
@Dynodon
Thank you for the Vic circuit board picture! 8)

Did you connect Scope gnd and signal to the coil output?
When we connect the scope gnd it's changing the output voltage to higher volts than not connecting gnd.

Are you using differential probe?
Still testing without diff probe on my coils and scope gnd connected. I'm not sure if that is right for getting a good reading. Also not clear if gnd must be connected to the wfc cell between choke 2 and secondary coil.

Br,
Webmug
« Last Edit: March 06, 2011, 23:54:41 pm by webmug »

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Re: WFC VIC
« Reply #229 on: March 06, 2011, 23:42:11 pm »
Quote
Also not clear if gnd must be connected to the wfc cell between choke 2 and secondary coil.
According to Don, it was isolated in the original. I personally would guess, that there had to be a reason for this.


Yes, the measuring with the scope is quite tricky, as the capacities involved are that small, that you immediately change the circuit by attaching your probe. Then you surely also additionally chnage the circuit by grounding it, with scope earth. Therefore I personally usually make differential measurements to an isolated external ground.
To have the scope ungrounded from mains and still then attach the "ground" lead to the VIC can be a big mistake if you're measuring high frequency high voltage circuits. It could damage your scope, for the ground connection is not made for high dU/dt ratios.

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Re: WFC VIC
« Reply #230 on: March 07, 2011, 01:14:23 am »
Thanks so much Don for the VIC card circuit. If I'm looking at it right, it confirms the scan time that I was thinking it was. Puharich says the NMR of water is approx. 3 sec or between 0.125 Hz - 0.250 Hz. I worked out the scan time and its set to 0.219 Hz with an on time of 3.05 sec and an off time of 1.52 sec. Again Don thanks for the post!!!!

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Re: WFC VIC
« Reply #231 on: March 07, 2011, 01:43:09 am »
Thanks for the picture Don!

I've been comparing with the control and driver patent, do you know which Figures from the patent are on this board and which are on other boards in the gas management computer? For example in the patents there are about 3 tests jacks for the scope, so with one on this board, the others must be on other boards.

I'm trying to think what circuits can be built to make it work without having the whole gas management computer, as those signal inputs might be required for this board to work properly.