Thanks, Joel.
The concept is great. I did a test and indeed, the second coil has greater back-EMF spikes that cause the first coil to respond (the feedback action) and the cycle continues until the energy has been dissipated (unless stored in capacitors). Indeed, the voltage level of the capacitor from the back-EMF of the second coil is greater than the back-EMF stored in a capacitor from the first coil (in my case 10 vs 15 V).
At first, there was no gain at all, because the frequency was too high (5 KHz in my case) and I had to lower the pulsation below 500 Hz and then the power gain in the secondary coil appeared. Of course, this all depends on the components.
I've been trying to do that with a Tesla transformer a few months ago, but I couldn't make the additional coil resonate to the secondary of the transformer.
In this case I used a coil of power cable (not twisted), using one of the wires for pulsing, while the other, being the same length, resonates to the back-EMF of the first one. The same would probably work with a coil of speaker wire.
The concept is great. I did a test and indeed, the second coil has greater back-EMF spikes that cause the first coil to respond (the feedback action) and the cycle continues until the energy has been dissipated (unless stored in capacitors). Indeed, the voltage level of the capacitor from the back-EMF of the second coil is greater than the back-EMF stored in a capacitor from the first coil (in my case 10 vs 15 V).
At first, there was no gain at all, because the frequency was too high (5 KHz in my case) and I had to lower the pulsation below 500 Hz and then the power gain in the secondary coil appeared. Of course, this all depends on the components.
I've been trying to do that with a Tesla transformer a few months ago, but I couldn't make the additional coil resonate to the secondary of the transformer.
In this case I used a coil of power cable (not twisted), using one of the wires for pulsing, while the other, being the same length, resonates to the back-EMF of the first one. The same would probably work with a coil of speaker wire.