Hi sourcecharge

Interesting ideal and I hope you will continue to build and test as it's rare to find researchers who actually build a test device let alone build and test someone else idea.

Looking forward to more and thanks for sharing

Luc

Thx

My research started with the assumption that b2spice was a "control"....

Using B2spice I have found the following equation regarding a series LC resonant circuit with an output measurement across the capacitor to ground:

Vp(out) = Vp(in) / (nkFCR)

n = the polarity number, 2 for AC positive and negative, and 4 or either positive or negative

k = wave form number, pi for sinusoidal input wave forms, and pi^2/4 for a 100% duty factor AC square wave

F = frequency (hz)

C = Capacitance (F)

R = total series resistance of the series resonant circuit, Including, ESR(cap), and of the coil, R(dc), R(ac), R(di), R(core)...not to mention the dc resistance of the mosfets and the connecting wire...

I actually have data points from B2spice giving the k factor at duty factors from 35% to 100% non grounded open square wave inputs

I also have the data points from B2spice giving the Power factor at duty factors from 35% to 100% non grounded open square wave inputs

80% PF b2spice at 100% duty factor, and 77% PF observed at 100% duty factor...

These data points allowed regression of the k factor and the calculation of the current at different duty factors using a square wave inputs...

Basically, I can engineer any output voltage using series resonant circuits with a required current for a load...

Now back to the "ratio"

The series resistance of the series LC resonant circuit is affected by a load that is across the capacitor to ground...as this is a parallel resistance it needs to be converted to series...usually this load output voltage peak can be reliably calculated at about 20% dissipation, any higher the equations fall apart..

When the resistance is calculated to a series resistance, it basically has a 1/x ratio when dealing with multiphase resonant circuits, that is what the first ratio is about...so the higher the number, the less the series resistance....which yields higher voltage output....

so if you reread the above, the idea is that after about 5 phases, the second ratio (the number of phases vs the first ratio) is always less than 25% or 0.25....but in a circuit with an infinite number of phases feeding the same load by rectification, the wave forms would realistically overlap as in the case of two series LC resonant circuits that are feeding the same load by rectification....therefore the second ratio, would increase towards 1....

Soo its been about 6 or 7 years since i had this idea, (been working alot and paying down debt) and I've never actually found a way to wind 20 cores all the same with high enough Qs to actually matter duing that time....

Multiphase equations show that coils with Qs of >250 would actually have overly efficient output even if the second ratio was still <0.25 but by only 1%, but enough to make the effort....this of course is assuming the dissipation factor of the capacitors are <0.002, the ones I got are 0.001 or less

So finally I bought a 3d printer that allowed me to make a "sectional mold" 24 sections of pie like C molds that are screwed together so that I can sectional wind these things....Took me about 4 to 5 hours to make one I think, calculations from my design speadsheet showed a Q of about 250 at 10khz...I only made one so far, but the first coil measured 233 to 300 with a mastech LCR meter..but after testing under load with a Vp in of 5 and 10V, the Q dropped to only 120....so now I'm bummed...

I studied air coils previously but the copper resistance was what stopped me from doing that type of coil, its a much simpler inductor model, where there is no core resistance...

Recently I have found that Liquid Nitrogen or LN2, can decrease the copper resistance almost 80%, therefore increasing the Q of a coil...but I'm not sure if I want to do that...

So I've hit a wall...either continue winding these MPP cores for only a Q of about 120 and hope for the multiphase second ratio to be approching 1 or look for a better coil design....either way I know its not going to be easy..