Canceling Lenz's Law - Methods

[sparks]

    Why I referenced the flyback transformer is that it is designed to draw energy from the core mass.  They know it is going to build up or retain magnetic domains when pulsed with dc.  To insure it doesn't they design the core to shed it's residual magnetism and make sure it does it all at once.  So what is actually giving us all that high voltage is coming from the steel atoms themselves as they return to natural magnetic arrangements.  I did a small experiment with a very unoptimized audio transformer. See below.  The leds litup and the second battery charged and the buzzer got louder as long as I didn't overvoltage the system.
   I also included a motor with a fan blade attached to the "stator".  The fan blades are a matched load.  Looks to be more efficient then stretching mounting bolts.  Seems that reactive energy is being overlooked alot.

[nightlife]

 Couldn't you just pulse one polarity and then pulse the opposite continuously to keep the core from magnetizing? Wouldn't that also be away to collect the back EMF without have to have a second winding? To do that couldn't you have a second wire attached to each of the leads from the coil and place two diodes one way and the other two the opposite and charge the same battery that way?

It may be obvious that I don't know much about circuitry but that has been bugging me for some time now because I have yet to here of that being done.

[supermuble]

A physics web forum said, if you "Make any flat (2d) figure of a wire such as a sinusoid or a spiral they will not have inductance. Inductance will appear only if these figures are stretched in the third dimension."

I did notice that the flat spiral cores they print on circuit boads called "planar" are not really spiral core. They are simply printed coils, with a normal design and a normal core that wraps around them almost entirely. The coil itself may not have much inductance until the core is placed on it. So printed circuit boards aren't a good example for an argument.

Then I found the math equation for self inductance of a spiral core. I am terrible at math, but I came out with a figure of 11 Micro Henries (uH) for a hypothetical spiral coil that is 16" in diameter mounted to a round flat piece of wood using 120 turns of wire (not sure what gauge) with no gap in the center of the coil.

If I were to use a spiral coil mounted to a board, it should not be able to create any noticeable magnetic drag in opposition to a rotating magnet, since the copper wire will not be able to create much a magnetic field. It has very little induction right? The question now remains, can you induce very much current into a spiral coil winding using rotating magnets?

I hope I'm not WAY off track, lol.

[BEP]

If you have built such a coil I suggest you measure it, apply current and test with a compass.

I've found many formula for these coils. None work unless you throw in a 'fudge factor'.

For a coil with no inductance they do very well in RFID tags, security badges and wireless power transmission.

I believe there is a company called CheckPoint that prints them in sheets so you can catch shoplifters.

[sparks]

@bep    "wireless power transmission" .  Do they make em so you can catch them sneaky joule thiefs?  Probably not JP Morgan made sure of that.

@supermuble

     They make or made an alternator that used 2 kidney shaped flat ouput windings wound with aluminum flat wire and a set of permanent magnets spinning on the rotor.
Really simple machine that didn't even need a voltage regulator to respond to changing load currents.  Really put out alot of power for it's size.  No steel core real light.  Guys would swear by em for ouput to fuel cost ratios.   Could have been Kohler or Generac.  Seems to have been a move in the right direction getting rid of the steel.