This induction heater project was built to heat conductive materials quickly and efficiently using magnetic induction. The unit uses a resonant LC tank and a half-bridge or full-bridge driver to generate a high-frequency alternating magnetic field—heat is generated by eddy currents and hysteresis in the workpiece. It’s a fun way to make things hot in a controlled, repeatable way.

The PCB layout keeps high-current and high-frequency traces short and uses a solid ground plane to minimize EMI and losses. The schematic includes the driver stage, gate drive, current sensing, and protection so the heater can run safely at the power levels needed for heating small to medium workpieces.