resonance coil length
I agree with Jetijs. If you do the numbers you need a large capacitance to get resonance with a low inductive coil.
The reason Don uses low inductive coils is because you get low resistance in your LC tank, hence longer current displacement in resonancecoil, hence more flux action.
Don also says the secondary coils need exact 1/4 or 4 times length of the primary and you get a automatic lock in of the frequency. The reason why is unclear to me, but it has something to do with the 1/4 wavelength.
Imagine a sinus, the action is not in the nodes but in the peaks and that is on 1/4 or 3/4 wavelength. Just at thought. @Jetijs, my build of your bedini charger (the straight forward one with 2N3055, a coil and some diodes) still works like a charm in my barn here in Holland) I used wound CAT-6 cable coil and 50V dc input, charges my bank of 12V1200Ah like a charm
I agree with Jetijs. If you do the numbers you need a large capacitance to get resonance with a low inductive coil.
The reason Don uses low inductive coils is because you get low resistance in your LC tank, hence longer current displacement in resonancecoil, hence more flux action.
Don also says the secondary coils need exact 1/4 or 4 times length of the primary and you get a automatic lock in of the frequency. The reason why is unclear to me, but it has something to do with the 1/4 wavelength.
Imagine a sinus, the action is not in the nodes but in the peaks and that is on 1/4 or 3/4 wavelength. Just at thought. @Jetijs, my build of your bedini charger (the straight forward one with 2N3055, a coil and some diodes) still works like a charm in my barn here in Holland) I used wound CAT-6 cable coil and 50V dc input, charges my bank of 12V1200Ah like a charm
Comment