This Tesla coil uses a single IRFP460N MOSFET, powered by a simple half bridge rectifier. The gate is protected by a bidirectional pair of 15v zener diodes going to ground. I would add more protection circuitry, but I don't have any 400v TVS diodes. A small transformer is used as a ballast. The secondary coil form and toroid are 3D printed.
I was going to use a 40W light bulb as a ballast, but it was just too weak. I kinda underestimated the power requirement there... It would have been comically fitting to use a Westinghouse product to build a Tesla coil though.
I would have added an interrupter, but I can't seem to get that to work without sacrificing power. Interrupting an SSTC is a lot easier than interrupting a slayer exciter. Slayers seem to be the rabid, feral cats of the high voltage world. If you have any ideas, please leave a comment!
23 авг 2024