I can provide a tailored schematic recommendation or component values for your specific project.
The trace or wire from the gate driver to the IGBT gate and emitter must be as short and tightly twisted as possible to eliminate parasitic inductance.
Are you planning to use a or an external controller IC ? igbt zvs driver
For further reading, consult application notes from Infineon (AN-2014-08: ZVS with IGBTs) and IXYS (IXAN0041: Soft Switching IGBT Drivers). Always prototype with a current-limited supply.
These circuits generate high-frequency magnetic fields and high voltages. Never work on a live circuit and keep sensitive electronics (like phones) far away. I can provide a tailored schematic recommendation or
Without zeners, the resonant tank can swing the gate voltage to 30V+. That will puncture the gate oxide instantly. Use 15V bidirectional (back-to-back) zeners.
The circuit relies on two transistors in a push-pull configuration with a center-tapped inductor and a resonant tank capacitor. Resonant Frequency : Determined by the tank capacitor ( ) and the work coil inductance ( Switching Mechanism For further reading, consult application notes from Infineon
While the classic "ZVS" circuit (the famous Mazilli driver) typically uses MOSFETs, swapping them for transforms this oscillator into a nearly indestructible powerhouse for high-voltage projects.
To design a functional IGBT ZVS driver, you must calculate the resonant frequency ( ) of your tank circuit using the standard formula:
Two large toroidal inductors to limit current spikes.
The actual inductor (or flyback transformer primary) you are driving.