I've got a technical question regarding the Tesla bifilar coil see attached picture, im sure most are familiar with this.
tesla-bifilar.png
If the windings are seperated and looked at as individual coils, coil A is a different length to Coil B, so they have different self resonant frequencies.
Now anyone familiar with my Bifilar delayed pulse experiments where i pulse 2 coils using 2 fets (1 per chan) in bifilar configuration with 1 chan delayed in phase.
My question, if in a Tesla coil configuration, where a primary resonant coil drives 2 coils in bifilar configurstion as the secondary, is it possible to alter the phase of the current in one of the bifilar windings, just like i do by driving the bifilar with 2 fets but instead using induction from the primary as the driver but altering the secondary bifilar coils position or wire lengths of one of the coils to get an out of phase current in 1 coil.
EDIT having thought about this more.
Its not possible because a bifilar works in common mode, so the way to achieve this would be to use 2 small seperate secondaries and to delay the current in one of these, and then use these to drive the bifilar?
I'm trying to come up with a way to do my dual delayed fet driver using 1 primary resonant coil and have the same effect.
I've also just realized im getting close to Patent No NL1032750 by Arie DeGues with what im trying to do.
https://www.overunityresearch.com/index.php?action=dlattach;attach=13892
ArieFig2.jpg
Would this work, if i were to place a diode in the ground leg of each bifilar and then use a primary to induce resonant current, each bifilar is connected together and terminated at the top with a sphere, then as the peak voltage on the bottom legs of the bifilar reaches the diodes breakdown voltage it will conduct, this takes time, so if i series 2 diodes in 1 leg of the bifilar then the breakdown time will be longer in that leg of the bifilar, problem is that the diode maybe damaged where as i would need it to recover ready for the next cycle.
I'm in effect now switching each bifilar to ground at different times but no longer using fets to drive the coils but instead an induced voltage from the primary resonant tank.
I suppose another way to do this would be different voltage spark gaps in each base leg of the bifilar, but i imagine recovery time would be slow.
I am amining for a system running at 45.5Mhz using insulated iron plated copper wires as the secondary bifilar windings, because of the high frequency i would need also to operate in a faraday cage to stop em radiation
The problem with driving both fets in my original design was that if i went over 50V the fets would be destroyed, im thinking by isolating the driving signal and controlling the phase in each secondary i can negate this and operate in the KV range without blowing the driving side.