μTeslaCoil

Small PCB for push-pull tesla coil with 50V boost converter

Notes and test results (b3fdc67)

The coil works, but aside from some not-so-wise design decisions that I changed in the current version, I encountered a few problems.

At first the idea was to use a slayer-exciter sized secondary but as it turned out driving a coil with a frequency close to 5MHz can be challenging in terms of tuning. I ended up using a slightly larger secondary with a resonance frequency close to 500-600kHz.
The lack of TVS diodes cost me some IGBTs so I added them in this version. As it turns out, reverse connection of the primary winding causes high voltage spikes and thus damage to the circuit.
The voltage converter that I used has a limit of ~60V on the output, but there is some headroom so you can experiment with higher voltages. I think the circuit should be able to withstand about 80V on the input.

Name		Name	Last commit message	Last commit date
Latest commit History 19 Commits
img		img
lib		lib
.gitignore		.gitignore
BOM.html		BOM.html
README.md		README.md
fp-lib-table		fp-lib-table
schematic.pdf		schematic.pdf
sym-lib-table		sym-lib-table
μTeslaCoil.kicad_pcb		μTeslaCoil.kicad_pcb
μTeslaCoil.kicad_pro		μTeslaCoil.kicad_pro
μTeslaCoil.kicad_sch		μTeslaCoil.kicad_sch