Development of LLC Resonant Inverter for Saw Blade Induction Heating Applications

This paper presents development of LLC resonant inverter for saw blade induction heating applications including six parts: step-down transformer, full wave bridge rectifier, Pulse Width Modulation, half-bridge inverter by using power MOSFETs, high frequency transformer, and workpiece. The workpiece is ½” *12” *0.025” 18T high carbon steel with 6-turns coil. The result shows that the saw blade is heated for 30 seconds with the temperature not less than 526.0 °C. The output power of heating is generated appropriately 700 W, at full load.