Shorting coil gives back more power

[woopy]

Hi all

wow the sim seems to be promising with the continuously shorting.

I will perhaps try with my signal generator to see what i can do.

For info in can get a nice sine trace with a STINGO from Sucahyo.

But my question is.    is it necessary to use a solid state oscillator in order to produce a nice sine wave and than try to to short it to get more power out.?

What i try to test is  can we decrease the Lenz effect on a generator by shorting coil


OK and for tonight i made a totally off topic test to refresh my mind, but perhaos interesting to some of you
http://www.youtube.com/watch?v=-38WBsPcdyk

Good luck at all

Laurent

[yssuraxu_697]

Ok gyus, lets quit playing

My testrig is small very low power pulse motor.

Currents status is:
INPUT: 6.55V 15mA = 0.1W
OUTPUT: 0.024W (efficent up to 160V, maximal usable output at 250V)
BEST EFFICENCY: 24%

It must be said that output seems to have zero effect on the input and rotor speed. So it is only 24% but it's totally free. The number is carefully calculated and tested over and over and I found it very good for such low powered mechanical design made from crap lying around. I could extract much more in addition to that 24% from that motor-generator when using additional regular generator coils that put some load on the rotor. But this is not the point, point is the timeline of shorting process:

0ms unused generator pulse (2ms)
2ms drive pulse from battery* (6ms)
8ms backspike (0.1ms)
8.1ms resonant ringing (~6ms)

*yes, this means I short the drive coil, not separate gen coil

Explained this means that first starts the sine wave from natural generation from approaching magnet. Then I connect the battery for 6ms, this drives the disc. After disconnecting the battery there is sparking at the reed, duration is only 0.1ms, most of the energy gets dissipated because of too much microsparking. This can be seen on the rectified shot - no usable energy in backspike - it just gets radiated all over the place. Then resonant ringing kicks in, excited by sparking. Duration is same as drive pulse. And when viewing rectifier and cap shots under load we see that cap charging duration for given load is around 0.4ms.
I have no reference point to sync all the shots but it is clear that cap is being charged only by resonant ringing.
For me the point is that there is real energy in resonant ringing and I doubt that shorting will give any meaningful output when coil does not get excited at its natural resonance. Likely all the hell breaks loose if some modern Tesla shorts also the peaks of resonant ringing. I have seen random hits when amplitude is much larger than regular.
Works just like hydraulic shockwave. Shock the shockwave and for real kicks...

This explains the spark gaps in almost every claimed OU design - no spark - no ringing - no good stuff.
Maybe it is possible with ultra-fast transistors also, I'm no specialist on this.
I tried with RF transistor and got nothing. i_ron also got nothing so far.

Maybe is time for Gyula to step in with some real-world self-made example and scope shots, he seems to know the tech stuff. I would be really glad to avoid spark gaps and such because of RF emission and unstable operation.

[bolt]

You might be able to use my 555 circuits.  I published them for someone else.

[hakware]

You might be able to use my 555 circuits.  I published them for someone else.

Yea this is the circuit I made the other day.

[yssuraxu_697]

Ok, thanks. But the problem is I already tried transistor-based switching and did get only wery sad low amplitude spikes, nothing compared to resonant ringig. So maybe you could post real-word scope shots from such circuits output and efficency results?