Abstract: This paper presents a resonant inverter with IGBT for induction heating (IH) applications. By employing the center tap transformer in the proposed inverter, the switching frequency of the IGBT’s is half the load switching frequency. Moreover, the IGBT’s in the proposed inverter operate in zero voltage switching during the turn on phase of the switches. The system configuration, operation and the analysis are described to illustrate as to how the load switching frequency of the proposed resonant inverter is twice the switching frequency of IGBT’s. The new topology is verified by carrying out the simulation using MATLAB/Simulink software.

Keywords: Center Tap Transformer, Induction Heating, Resonant Inverter, Zero-Voltage Switching (ZVS).