I'm building a solid state tesla coil, which requires me to switch very high voltages at high speed to achieve resonance. The problem: I can't find any IGBTs that can switch the voltage I need.
In theory, I will have four IGBTs in a full-bridge driver configuration. I plan on using the IRG7PK35UD1PbF (datasheet), which has a max voltage of 1400 volts. However, I need to drive the primary coil at 6500 volts.
How can switch a load this large without getting obscenely expensive IGBTs? Would it be possible to put them in series/parallel to do this?