Down in the Weeds with an Air Gapped Bitoroid Transformer

[@SaveOurSouls-SOS]

PEACE, GOOD LUCK

[@paulmaher812]

Thank you, Hoping you and yours had a joyous Christmas and we have a New Year, let's get their first, than worry about making it a Happy New Year.

[@paulshields1883]

Energy stored in the cap is proportional to V^2, so from 10 to -6 V is proportional to initial minus final, or (10^2 - (-6)^2) = 100 - 36 = 64 units, would be transferred to the secondaries, or lost as heat. (Factor in 0.5 C to find joules). I'm not sure I have the circuit right in my head but the outputs from the secondaries were rectified? So there'd be 0.7V drop across the diodes? (And again account for capacitance to go back to expected final voltages)

[@paulmaher812]

Hey Paul, To cut to the chase, from everything I can tell it is OU. I will feel better when I have done something with batteries where I say, " hey" that's helpful, now I don't need to charge those batteries so often, or at all, from the wall. Heaven knows I have seen things go sideways enough, I will wait for the next battery test, but yes I would say Thane was onto something and you can see it, if you care to control the timing with an arduino, even with two air-gapped E-Cores. Yes the output is going from both secondaries through FWBRs so there may actually be 1.4 Volts drop across the bridge now that you mention it.

[@paulshields1883]

@@paulmaher812 it's very encouraging, and supports a result i obtained, around five years ago, finding a whole volt AC, unpowered, with a ferrite core and about 150 turns of awg 24, and a capacitor... But I didn't adequtely test or replicate the conditions, so it could have been leaching power from the grid. I reckon COP > 5 is needed, to close the loop and begin to make a viable product that would be good for off grid use, camping etc..

[@paulshields1883]

To that end, shottky diodes, heavy wires, large cores, high voltages, high frequencies, and careful tuning to resonance ought to help

[@paulmaher812]

@@paulshields1883 You mentioned, "I'm not sure I have the circuit right in my head", a couple things. One, I'm going to take a WAG you have a background in electronics and WAG2 you've never played with an Arduino. Just pick one up I used to find them on sale for < 5 bucks at Microcenter maybe they are 10-15 bucks now on Amazon. Once you mate it with optoisolated relays you can do stuff Bedini, Cole, et al used to spend months trying to put together in an afternoon. You are just discharging a cap into a coil (in this case a coil that is the primary of a bitoroid) and using a SSR to stop the discharge where ever you wish on the LC oscillation while capturing what comes off the two secondaries. I am going to have fun with this for a bit longer, while also transitioning to a new area of research. Thanks for the comment, if you have a go a replication and have any problems I will try to help.

[@anthokranken]

hello very interesting but you are late, you have to understand the resistance and take the back emf by the resistance to this loop naturally. you divert things simple work watch the video of patrick kelly on the transformer in thane eh, and there you will understand your frame is already wrong​@@paulmaher812

[@examplerkey]

Let me know when your FEM is ready. I'd like to be your first customer. I don't ask much, just 100% efficiency 😅. This is the best way to waste one's time, no kidding. You will learn a lot but in the end will inevitably come to a conclusion, the hard way, that there's no free lunch. Until then, have fun! 😅

[@tjaeoij32]

What is the purpose?

[@paulmaher812]

Indeed