Over Unity Lightbulb

[elgersmad]

Well, I looked into On Demand Water Heaters, to gain some insight on how much energy is used to heat water, thinking, that with time and the development of Ferrite Cores that will heat up but last after being burned in that about the same amount of heat will be generated from the same amount of energy.  That is typical.  36Kw is about enough power to run an all electric on demand water heater.  Where the main difference in this design would be using the transformer core as a heat source via a built in heat exchange.  That would consist of drilling holes in the core, potentially lining it with glass, or ceramic to keep it from leaking.  Of course, you'd use a 10KW core that when air normally kept it cool by convection, was cooled internally at a higher rate, therefore driving it at 100 KW would produce all of the heat, and the coolant would go to another heat exchange.

The Diesle Engine is closer to what I believe can be done

Here's the deal, the permeability of space is 1, and you can build a transformer that is nearly 98% effecient without a core.  At that point, the permeability of anything over one, is literally a gain in energy.  If that is in effect partially the Q of a resonant tank circuit, and in part the features seen in magnetic transmission lines in how they can compress a pulse with, and place 100 joules on a point of less of a second, and it is no apparent gain, the inductors still do not like the thought of a current reversal, and when self inductance is involved it will attempt to follow through.  We have more proof in other circuits designed.  The metglass pulse compression circuit is really just a good example.

[elgersmad]

The first real problem is fixing the spice models.  I believe that this model is the solution.  Basically, the other simulator models don't result in a changing inductance on the primary winding.  By measuring the current and voltage on the primary and backwards calculating the reflected impedances, you eventually will get to the unknown value of LP_Variable.  Usually, in the vast majority of spice models, that's considered mutal inductance.  But, reflected impedance can be measured as a change in the inductance of the primary in response to a load on the secondary.  So, none of the simulation models are taking that into account in resonant models.  I just haven't presented the equations because I'm still plunking around with my calculator to be absolutely certain that I can find that one unknown with the invormation that the rest circuit provides.  I've sat here with my inductance meter, and the difference between open and shorted is always telling me the same thing, that anywhere in between is just a different fraction of the difference.  I also noticed that you can bet a bad reading due to the stray capacitance of the secondary of a step up transformer.  So, I will have to break out my oscilloscope, signal generator and re-test my audio transformer because, my inductance meter is operating at a frequency so high, that if there were only one inductor, it would be fine.  Since, the stray capacitance of 1 Henry worth of windings are there when the transformer is reversed to a step up from the 8 ohms, the change is so small that it's telling me that  my meter is close to the self resonant frequency of the secondary.  It will be easier to test an RF transformer I have.  Other than that I don't see anything wrong with the model.  As for how it ends up over unity, is in part due to electrostatic induction, and how voltage leads in an inductor, and current lags, that doesn't prevent the path of another primary from allowing for some of that to happen, and actually moving just a few more electrons that initially provided.

[elgersmad]

You see, in a normal transformer with a complete magnetic circuit, Lenz Law is left out of the equation concerning core saturation but, it is real.  The counter EMF is producing a magnetizing current, even though it's the opposite polarity and like pole wind up facing in the transformer's core.  I have seen another model that takes into account, webbers and ampere turns, that can work but the core is approaching saturation when you combine both currents.  It's also changing the amount of the core available to accept or retain magnetic lines due to the opposing magnetic lines occupying the core's volume near the secondary.  That's why I was suggesting four L shaped pieces.  You could allow the rejected lines that don't fit from one set windings into the other set via the core to just eject into free space.  Then the primary would operate more like a moving magnet, even though nothing moves, and the secondary would just pick up the energy as if a magnet went flying past it at whatever rate of change occured.

[elgersmad]

So, long as the ideal transformer model, or lossy core model are present in this schematic, and the transformer model is a step up, this set of equations fixes the primary of the model's reflected impedance as a change in inductance as is found in a real transformer.  Use only measured values, and if you haven't measured the values, then set them to zero such as stray capacitance.  Winding resistance should be measured.

[elgersmad]

Oops