Help/Ideas for Bedini test bed

[boguslaw]

Very good thoughts! Clearly the solution is using spikes and charge capacitor.
Do you have any experience with zener diodes for large power (called transils) . I need to invent a reliable overcharge protection to dump excess voltage safetly at high rate. Transils are good but for accidental excess power dump while we need continuous protection when things start to accumulate too fast Think about snow ball effect. If we could have parametric resonant circuit then it will work always at maximum circulating power and this surely is the solution for loading resonant circuit !!!!!
THINK ABOUT IT

Capacitor was called condenser in the past ....

[ZPDM]

@Boguslaw

First I have looked at about 2 or 3 of Tesla's lectures/papers and I was in all honesty wondering does condenser mean capacitor so many thanks there. Second thanks for the compliment. Third, "the solution is using spikes and charge capacitor" I may actually have some idea what you are talking about (though I may not), as I mentioned in my previous post is there any difference between diodes and thyristors (SCRs) in this situation? Never heard of transils, nice to hear about them and have no idea why you mention them.

"I need to invent a reliable overcharge protection to dump excess voltage safetly at high rate." You are making a bold statement there Mr. Boguslaw and if you weren't such a handsome Devil in your portrait I wouldn't have bothered responding! The rest about parametric resonant circuits is all Star Trek the next generation to me, i.e BS.

I am thinking to put all this on the back shelf, though I will look further into charged capacitors and possibly continue with that avenue.

Really there are two areas I will look very much into now because you can actually get your hands on them. The first is the astonishing work done by Slobodan Milosevic, mea culpa, mea culpa, mea culpa, I love the Serbians for being Serbian and through Tesla for giving us much of modern society, I meant, Veljko Milkovic. If you haven't looked at his two stage oscillator take a look ... it's a humdinger as Dr. Lindeman also attests to.

Second is the work of the late Dr. Eric Laithwaite (D.Sc, PhD) through his children's lecture on gyroscopes (I could almost follow it!) Eric Laithwaite's lecture on gyroscopes part 1/7 - YouTube

Ciao,

Paul

[ZPDM]

Boguslaw,

When I re-read what I write I can sometimes come across wrong. I genuinely appreciate the input you provided. I am not saying the parametric idea is at all nonsense, only that it is over my head. Thx again.

[arigatou]

Having said that, the scope is limited to design, know that you want in the operating frequency range to really help. You can make their own custom specifications, of course.

[ZPDM]

Update

Just thought I would a give a brief update. I may try and make a first video illustrating some of this but also myself sometimes find text info more rapid and/or enjoyable So the cliffnotes would be that this will be some very basic stuff maybe old hat to many but may be worth a read and will deal with some properties of pulsed DC especially as relating to one wire transmission of power. Keep in mind I have no extended formal education or work experience in electronics if I step in some silly or obvious gopher holes.

Okay so according to my multimeter 1) when you pulse an inductor with direct current there is no direct current from the coil, there is however an alternating current that registers. The potential of this current is magnified with a transformer set-up. It would seem self-evident that the frequency of the AC is identical to the pulse rate of the DC however, I don't yet have an oscilloscope so that is something I would like to know in future. Whence the AC current? Don't know, my guess is that it comes from the expansion and collapse of the magnetic field around the Bloch wall of the electromagnet (inductor).

Let's now consider a transformer pulsed with DC by a function generator at say, I don't know, 5 Khz. The two ends of the transformer coil as noted earlier show no DC but do show AC. If we now take a diode and attach it to one end of the coil and measure the potential between the end of that diode and the other free end of the secondary coil, there is now next to no AC on the meter, mais voila!Mais Viola!Patent. It is interesting that he voices his seeming surprise in this patent and speculates as to the effect. Say what you like about old Tesla (hopefully I'd say nice things) but he wasn't afraid to brute force a solution. So he was working with much higher potentials, however, he informs us that the magnitude of the one wire effect is dependent upon potential and pulse rate. Also one might note that this patent in essence describes the Tesla Coil but that is getting afield. The diode, as a vacuum tube, would be invented a few years later, a solid state version being some decades later. Interestingly Tesla has a patent for a hydraulic "solid state" diode.

If one goes back to the "Bedini" set-up, now that we know that the input is AC current the circuit looks, I believe, identical to the first leg of a Cockroft-Walton voltage multiplier. Haven't done anything further with this yet but is interesting to look at how this multiplier device is believed to work. The diodes act as one way valves which trap the various iterations of the alternating current in each capacitor (you can read Wikipedias write up on it here here). This may be what is happening with this example of one wire transmission of power. The alternating current is shunted through each oppositely oriented diode at 5000 times per second which reads as an instantaneous voltage difference on a meter. If a cap is attached the power gets "stuck" in the cap. I have no idea why the amp draw remains unchanged I would have to guess it gets replenished almost instantaneously from ground. So yes, if this is what is happening one could see why having a larger voltage difference or a faster switching would lead to more power flow.

So, many others have reported similar things, Jonny Davro If I'm not mistaken has a video of some tinfoil (gotta love it) around a large plasma ball with one wire going to light a few flourescents. My thanks to him, Lidmotor, Slayer007, Lasersaber and many others for helping guide many enjoyable hours of exploration.

One way to have a little more inexpensive fun with this is to pick up a little USB plasma globe for 4-5 bucks. 4 screws and you have the one wire coming out which is at a fairly high voltage. So this does strengthen the weak one wire effect somewhat, just as Tesla said. Once one starts fiddling around with the diodes though there are lots of effects some seemingly very subtle and some a bit less so, it certainly remains somewhat confusing to me. Aw heck I'm not gonna make a video unless people say to. I think you get the gist of it all. Happy Experimenting!

[ZPDM]

Anything with capacitance will respond to the voltage difference by attempting to equalize it out (though apparently with varying efficacy). Capacitors, batteries, etc. Some things might phosphoresce in response to unrectified one wire output. There may be other effects but again anything which can have a current flow in response to its new environment will do so.
2. b) The current flow will be proportional to the voltage difference established
2.b.1) The voltage potential established is proportional to the inductance established (when it collapses).
2.b.2) The input required to establish the inductance is proportional to the resistance in the system.The current flow is proportional to the frequency.