Shorting coil gives back more power

[minoly]

Very Nice!
I like where this thread has been going since I last had a peek.
We finally figured out the simple method of using the SSG to short the coil
"http://tinyurl.com/SSGshort"
will have to give the Opto a try.
Thanks,
Patrick

[Thaelin]

   Pdf of the transistors is here
   http://www.datasheetcatalog.com/datasheets_pdf/B/P/X/4/BPX43-4.shtml

  N type  880 nm triggered.

thay

[Magluvin]

Im glad you guys are seriously considering the optical idea.
What is great about it is, you will be able to have many on/off periods in a small area, where the magnets/reeds make that virtually impossible.
And the speed of the sensing should be fantastic as said in a previous post.
You could even print coded bars on transparent sticky sheets.

Good luck. =]

Mags

[Tudi]

I hate to be a spammer. But i would love to assemble such a device for experimenting. And i think i'm asking for a very small thing. : What is the input and output power ratio ?
It's just a simple Amper measurement besides the Voltage increase.

Is it just drawing more power from the batter at once stacking it up at the output ? Is this peak draw so fast that the multi meter cannot measure it (it does an avg over time)?
I was watching the osciloscope outputs ( much finer value sampling then multimeter) just makes me think that there is voltage spike that guys harvest and then there is a period of silence (not mentioning the BEMF ) to wait for the recharge from the battery of the coil. So basicly the multi meter is measuring the spikes at the output and probably just skipping the input spikes ? Just a wild guess. I'm simply trying to understand the magics behind of it. Such simple circuits tend to hold no magic. Even if the coil is harvesting ambient energy, you should feel some sort of radio signal loss, or maybe heat loss ( EMF are everywhere )..

[Bruce_TPU]

I hate to be a spammer. But i would love to assemble such a device for experimenting. And i think i'm asking for a very small thing. : What is the input and output power ratio ?
It's just a simple Amper measurement besides the Voltage increase.

Is it just drawing more power from the batter at once stacking it up at the output ? Is this peak draw so fast that the multi meter cannot measure it (it does an avg over time)?
I was watching the osciloscope outputs ( much finer value sampling then multimeter) just makes me think that there is voltage spike that guys harvest and then there is a period of silence (not mentioning the BEMF ) to wait for the recharge from the battery of the coil. So basicly the multi meter is measuring the spikes at the output and probably just skipping the input spikes ? Just a wild guess. I'm simply trying to understand the magics behind of it. Such simple circuits tend to hold no magic. Even if the coil is harvesting ambient energy, you should feel some sort of radio signal loss, or maybe heat loss ( EMF are everywhere )..

Tudi,

These individuals on this thread are experimenting.  The concept is based on Ismael's electric car.  Go find that thread, read through it.  Then experiment.  No one hear will give you what you want.  No one here is even close to that stage.  So please either experiment and post some information, or simply watch.

Thank you and have a nice day,

Bruce