Design, Simulation & Hardware Implementation of High Frequency Inverter for Induction Heating

Abstract

The Induction heating is a typical application eld for high-frequency power supplies whose operating frequencies range from one to several hundred kilohertz. Induction heating applies an alternating magnetic eld generated from the current ow in a coil to the conductive matter to be heated. The design process of a half-bridge resonant inverter for induction heating application is presented, rstly, the electrical behavior of the system is investigated. The second step consists in nding a methodology for the computation of the inverter. Then a prototype board has been build and a nu- merical methodology. A high-frequency inverter having a circuit construction capable of executing a constant-frequency operation and a zero-volt switching operation and an induction heating using the high-frequency inverter. The high-frequency inverter is comprised of an inverter circuit for converting a direct current from a DC power source into a high-frequency current and a control circuit for controlling the inverter circuit. iv