Pulling energy from the ambient energy field using a coil capacitor

[AlienGrey]

When doing experiments with C2 capacitor it would be good to see close up from the drive pulse, both current and voltage. Use as fine accuracy as possible, let's put that 1.5gHz sampling rate in to good use. When current lasts longer the current pulse should become more square like instead of spike. I forgot to put this detail in the test cases.

Hi shorting a capacitor to earth, Lets think what we are really doing here for a moment ! a fully charged cap yeh!
stored energy but what can we do with it, more to the point what did Morey or Don Smith do with it, he dumped it into a tuned load coil
LC to create a simulated lightening pulse. Does this give you any ideas ?

[Jack Noskills]

Oops, I mixed up the voltage amplitudes pretty good in a hurry. The low amplitude oscillation is below 1V, maybe about 0.5V. Looking closer the high amplitude oscillation (joining the sine parts together) the peak to peak is somewhere between 12-13 V. Ratio is much greater but there is no longer squared relation between voltage and current oscillation when relation is computed like this. Anyway the oscillations increase significantly when primary coil capacitor is charged and there must be squared relation but it is somewhere else.


AlienGrey, no ideas about this at the moment. Let's first see how much will be stored in that DC capacitor and whether it can power a load when ground is connected minus of that capacitor.

[itsu]

Jack,

i have a hard time following you as you seem to run back and forth between your testcases.

I now reply on your post #219 and specific the below in bold request:

What could be done next is to take scope shot from the output coils similar to #214 using the short pulse (dual current measurement).
Then the ringdowns created by using 50% and 0.9% duty cycle pulses can be compared.
We could also see if this has any effect to phase difference between output current and voltage.
There is a test case for this but it uses blocking diodes and 50% turn offset coil in addition.
You could also decrease/increase the 0.9% duty cycle pulse length to see what is the minimum pulse length to get the maximum ringdown.

First screenshot below is again the output as show in my post #212 (so NOT #214 as you mentioned) meaning
inputting a 10Vpp square wave at 291Khz @ 50% duty cycle.  (the white trace is the unloaded FG signal used as input)
Yellow is the voltage across the output coil see diagram.
Purple is the CP2 current probe signal
green is the CP1 current probe signal


2th screenshot is same setup, now with 10% duty cycle see white trace again.

3th screenshot is again same setup. now with 0.9% duty cycle, see white trace.  (be aware, the yellow trace amplitude is now set as 2V/div.  instead of 20V earlier!!)

So with only 10% duty cycle not much signal is left, let alone with 0.9% duty cycle.


Itsu

[Jack Noskills]

Can you test the capacitor charging next using 50% duty cycle ? And then the same with blocking diodes ?

[itsu]

Hmmm,

not sure where you want me to add this capacitor and blocking diodes.
Should the cap go as shown in the below diagram?  And what is its value?

What about the diodes, are they suppose to come in the leads next to where i have drawn them?

No diagram in your PDF equals my present setup


Itsu