Improvement and Enhancement of Energy-Saving Induction Heaters

In many industrial and scientific applications, induction heaters are widely used to heat magnetic materials, especially when precise, controlled heating is needed. Compared to other heating methods, induction heating has advantages including noncontact heating, high efficiency, surface hardening, clean heating, and more. Hard switching inverter circuits are used in power circuit layouts for induction heating systems in a variety of applications, which increases inverter bridge losses, particularly in high current, high frequency switching applications. Soft switching type induction heaters have the advantages of minimal switching power loss and high frequency operation, which make them suitable for usage in a range of process applications. The implementation and simulation of an induction heater are covered in this research. In this model, a single phase, half bridge, series resonant inverter generates high frequency current. The driver circuit for a single phase half bridge series resonant inverter is controlled by a microcontroller unit.The current passing through the load controls the duty cycle of the gate pulses provided to the switching device's gate. Haul To keep an eye on the current passing through the load, sensors are employed. The microcontroller unit generates the gate pulses required by the switching devices. A PIC16F877A microcontroller is employed. By changing the PWM gate pulse's duty cycle, which is produced by the PIC16F877A microcontroller, the amount of power sent to the load can be adjusted. The power used by the load is managed by the induction heater's closed loop control.