ENERGY AMPLIFICATION

[lancaIV]

                                             Usefull ?
http://phys.org/news/2014-04-newly-universal-property-metamagnets-everyday.html#inlRlv


                      semi-closed electro-magnetic-cycle application ?


Sincerely
              OCWL   

[Jeg]

Hi Cadman,

I modified your schematic to include two Zener and two normal (but fast) diodes connecting them as shown. The extra diodes in series with the Z diodes are needed to prevent current flow via the Z diodes when the polarity of the AC voltage across the Z diodes would forward bias them, in these instances the normal diodes block the current. This adds an extra 0.7V to the Z voltage (the normal diode conducts in forward direction when the Zener diode conducts in its reverse Z direction).
Of course, you would have to connect several Z diodes in series to add up their Z voltages to reach an AC peak level where you wish the diodes to conduct i.e. to choose the "spark gap" voltage.  And at the initial tests with these Z diodes the use of a resistor in series with the diodes to limit the AC peak current to that of any Z diode rating would be advisable (not to 'burn through' any diodes at the very first 'spark' i.e. conduction).

Let me notice that other than Z diodes, the so called Transil or / and TVS diodes could be used as "spark gaps" too, they are designed to withstand much higher surge currents than Z diodes when they break down at the chosen voltage level.

Gyula

Gyula this is really cool! Thanks
I have tried in the past to use some KE400 TVs diodes in series through a spark gap as you describe. What I had noticed was that every time the voltage through the gap was going a little over of the total TVs voltage, then TVs were firing until voltage reach again this hv TVs limit and then close again. They didn't let all the charge from the cap to be grounded through primary for a massive bang. But I was using them in combination with a spark gap.
On the other hand perhaps this is what you r looking for.

Dave thanks for the explanation, some times I can't see the obvious. Especially before bed at nights!!!

[Bob Smith]

This sentence in the link I posted above intrigues me, and I wonder if it holds a key:

Valence electrons which break free under the influence of the applied electric field can be accelerated enough that they can knock loose other electrons and the subsequent collisions quickly become an avalanche. When this process is taking place, very small changes in voltage can cause very large changes in current.

http://hyperphysics.phy-astr.gsu.edu/hbase/solids/zener.html
If the above is true, then it seems to me we're not just looking at voltage increase but a "very large change in current." Could this be an overlooked key to energy amplification in Tito's setup? I'm not sure, but thought I'd throw it out there.
Bob

[Cadman]

Thanks Gyula that helps a lot.

So the trick to getting a train of HF oscillations would be a balancing act.
Sufficient emf to charge the cap in 1/2 cycle or less
Keep the cap voltage within the diode capabilities
Proper relation between C and L to obtain the desired high frequency oscillations
Keep resistance of the LC circuit below 2√(L/C)
or
Charge the cap over several cycles, keeping to the other parameters
Discharge the first cap and use the HF secondary's higher emf to charge multiple caps in less than 1 cycle and feed those caps (one at a time?) through another spark gap(s) to another HF transformer(s) to get a better train of HF oscillations. In other words step it up through several stages to get to the goal.

Now it makes sense to me. I see now that using diodes instead of an actual spark gap would let us start out with lower initial emf.

[forest]

Very good Cadman.      I think you solved one of Tito's methods. For me too complicated...