Understanding electricity in the TPU.

[slapper]

Can't remember if GK posted this but someone on this forum did:
http://www.youtube.com/watch?v=SO3dXCsyBC4
Good refresher material.

Take care.

nap

[NickZ]

  To GK and all:  Greetings from Costa Rica
   Here is a picture I took of a diagram of the generator coil set up for the Magnetic Vortex Wormhole Generator  (attachment).
I have not seen this design replicated by anyone. It seems like an interesting concept. It was taken from a patent application by John Quincy St.Clair. patent #US2003/0197093 A1  Oct. 2003.
  It shows two bucking torroid coils wound on a single wire. The smaller torroid coil is 1/3 the size of the bigger coil and wound in reverse  This is supposed to cause a vortex or magnetic wormhole, and alow energy to come into the generator from the aether. Thus imitating what naturally occurs in thunderstorms.
Reminds me a bit of the later double and triple torroid coils made by SM. They may have been wound in reverse also, like bucking gyros, to cause the most magnetic field disturbance or disequilibrium possible.
                                     NickZ

[wattsup]

All I'm saying is; Solid state works fine as long as you understand what
it's limitations are and modify the circuit accordingly.  Like the internal
diode of a MOSFET.  Either bypass, or add an fast external reversed to
eliminate it entirely....  Where's the problem?   Here's a simple clue that
everyone knows, but NO-ONE wants to admit.  Why are the original 1
diode radio tuners always spec'd with a germanium diode?  If you can
answer that without falling into the "Lower voltage drop" excuse, then
you have it, in a nutshell.  The same circuit can work fine with a silicon
diode, but the circuit changes a little.  I actually had to play with this
for a month to truly understand the differences, and what I could ignore,
and I STILL can't explain it in normal EE ways.  To try, using the info
that I have learned around here, would make me sound like a crazy fool.

Bottles (Tubes) DO have certain advantages in this area of work, please
don't get me wrong, but if you understand why, then SS devices will
work quite well.  Give me a few more weeks and I promise I'll lay some
real data so you can verify what I am saying.  (I'm slow these days...)

@Loner

But as soon as you put a diode across the mosfet, you just changed the circuit completely because the mosfet cannot do the  real true cut off because the reverse potential will still be available from the bypass. If you pulse an inductor, on the off the reverse diode will still make the connection so the inductor cannot discharge. Hmmmmm.

Regarding the "bottle", I was wondering what @Mannix meant. Thanks for clarifying that.

@gyulasun

Thank you again for your information which is giving this major neophyte some direction. I will contact IXYS to see if I can buy from them directly some of their bigger JFETs. So the best ones should have the lowest ON resistance, which is logical since we want the pulse pass the JFET and do the work to the coils and not to the component. I would never have thought of that myself.

That PVI is really interesting. Seems to be a good analogy for tube function given the led transfers to the opto. And the way it simplifies circuit design is just tremendous. Can there be a use for this in a TPU. My only hold back is that there is still an internal diode that will kill flyback. Interesting that they are actually using a JFET to have the N/C function but have added a diode in there also. For me, a good strong JFET will be the best way for now.

Until I get more JFETs, the one I found locally and am using now is a low quality model NTE132 and I am putting the pdf below. Just from the pdf I had a hard time figuring out which was the gate.

In my previous post I said mosfets fuzz and pop better. I take that back. Twice these JFETs scared the crap out of me. Man what a pop. They just split completely open. Too high a voltage and amperage going through the D and S. The JFET I have is definitely not a match for the NPN and PNP I am using on the outer poles. Hmmmmmmmmm.

OK, one of my problems I think I am not understanding is the negative voltage required on the JFET gate. How do I get a negative voltage from my Frequency Generator? I tried connecting the negative lead to the JFET gate but it does not seem to do anything. Can't see anything on the scope either.

SM indicated that the DC output also had an AC hash. Could that AC hash have been a requirement to negative pulse a JFET? If this blotch wall eventually works, it will also produce an AC hash since the blotch wall will be moving back and forth along the same inner collector ring.

Or, is it possible that SM found a way of using the center toroid to separate an incoming DC pulse into a positive and negative pulse in order to run two types of gate requirements. As shown above by @GK, (can't believe he posted this while I was making this post last night but did not finish it until just this morning) being one step ahead of me. Ya Man.

@GK

Yes, lots of info to muddle with. Does not make it any easier. And yes, I have also been seeing pulses on my scope but even with my 60mhz capacity scope, I could be pulsing only at 50k and still not being able to see the waveform on the scope because it is to fast for my scope.

Anyways, I will go again today to my EE supply and try to find some more JFETs while I order the bigger ones. Maybe @Groundloop has managed some advancement on his end but let me tell you this blotch wall pulsing movement thingy will not be easy. You can't use a mosfet in the center because they require a polarity, but what polarity is available in a blotch wall? The only thing that really makes sense is a JFET, but they are getting rare and you will need the stronger ones otherwise you will be making JFET popcorn.

[giantkiller]

@Nikz
I originally read that patent 3 years ago. But now after reading Lyne, Laviolette, and T.T. Brown the grasp is child's play. Thanks I needed to see it again.

@All,
The bucking now appears in 3 places, in a ferrite ring, in air or in a conductor.
The bucking field in air produces RE across space which immediately sinks to any metal in the area. The TPU copper collector is named after this. That is why 90degree coupling works.

My current magamp is wired in bucking mode meaning 2 winds in opposite wrapping directions over the ring, like mirrored. The patent items L & M are wired complimentary but driven oppositely. So this presents an opportunity to wind another one quickly for further comparisons. I can use iron wire to crank these out. The patent item J is wound complimentary or continuous with a cut half way.

Once again the abruption is caused in the circuit(like Groundloop's), the ring, or air. The ring and air represent the best places while the circuit needs special components because something in the substrate gets in the way. So in Air or ferrite gives the least resistance and puts us in the realm of effect generation according to Telsa's methods.

Another method of abruption is shown in Lee Crock's circuit (http://www.keelynet.com/mexistim/nexcrock.htm)
and patent 4874346.

Also a ring playtoy. This is awesome!
http://www.cut-the-knot.org/Curriculum/Geometry/TangentTwoCirclesI.shtml

I stand on the shoulders of those greater than I and am very grateful to them.

[gyulasun]

.....

@gyulasun

Thank you again for your information which is giving this major neophyte some direction. I will contact IXYS to see if I can buy from them directly some of their bigger JFETs. So the best ones should have the lowest ON resistance, which is logical since we want the pulse pass the JFET and do the work to the coils and not to the component. I would never have thought of that myself.

Hi wattsup,

I did not write IXYS manufactured JFETs, I wrote they make depletion mode MOSFETs (they conduct nicely with zero gate-source voltage).
Power JFETs are made, among some others, by Semisouth and I referred to this JFET type from them:
http://www.semisouth.com/products/uploads/DS_SJDP120R085_rev1.0.pdf

Until I get more JFETs, the one I found locally and am using now is a low quality model NTE132 and I am putting the pdf below. Just from the pdf I had a hard time figuring out which was the gate.

In my previous post I said mosfets fuzz and pop better. I take that back. Twice these JFETs scared the crap out of me. Man what a pop. They just split completely open. Too high a voltage and amperage going through the D and S. The JFET I have is definitely not a match for the NPN and PNP I am using on the outer poles. Hmmmmmmmmm.

I wrote to you they are small signal JFETs, designed for max 25-30mA drain current and 30-35V drain-source voltage, exceeding these limits lead to ruin them, so do not put them into a circuit where the peak current or voltage limits are exceeded.

OK, one of my problems I think I am not understanding is the negative voltage required on the JFET gate. How do I get a negative voltage from my Frequency Generator? I tried connecting the negative lead to the JFET gate but it does not seem to do anything. Can't see anything on the scope either.

The negative gate voltage for an N channel JFET is meant with respect to its source electrode. So if you think of a normal DC voltage like comes from a 9V dry battery, then the positive polarity of the battery is connected to the source of the JFET and the negative goes directly to the gate electrode: then the JFET immediatly switches off, no or very little current can flow via its drain-source path.
If you think of a pulse to control the JFET, you need a generator that gives a negative polarity pulse voltage with respect to its ground output. Seeing this on a scope, the scope probe crocodyle clip goes to the generator gnd output (BNC socket outer metal rim) and the probe pin goes to the generator 'hot' output (BNC socket middle center) and you have to see all the waveform BELOW the scope zero line on the display, in the negative direction.  IF you have an inverse output on your pulse generator, then normally it does not make a negative output from a positive one, unfortunately. Check it with a scope as I have described.
If you generator is not able to give a negative polarity output voltage, than you have to make a circuit with dual supply voltage (negative and positive) with respect to the common ground so that the output could go down to negative (below the zero voltage common ground). This is similar to certain operational amplifiers that need a pos and neg supply rail for working correctly and any voltage is referenced to the common point of the supply between the pos and neg. 

SM indicated that the DC output also had an AC hash. Could that AC hash have been a requirement to negative pulse a JFET? If this blotch wall eventually works, it will also produce an AC hash since the blotch wall will be moving back and forth along the same inner collector ring.

Or, is it possible that SM found a way of using the center toroid to separate an incoming DC pulse into a positive and negative pulse in order to run two types of gate requirements.

Because I have no idea how SM TPU works I cannot comment your above thoughts, sorry. All I did was trying to ease your switching problems you face with 'normal' MOSFETs.

rgds,  Gyula