Full Bridge Inverter Topology For Domestic Induction Heating Applications

Abstract: Domestic induction heating (IH) is currently the choice in modern domestic application due to its advantages regarding fast heating time, efficiency and improved control. Induction heating applications require high frequency currents which are obtained using resonant converters. In this paper a novel DC-AC single phase inverter is proposed and simulated using MATLAB. When the switches are turned on and off, a conventional inverter generates switching loss because of the hard-switching. Thus the inverter loss is increased. Proposed system contains auxiliary circuit. The converter stage switches perform soft- switching because of the auxiliary circuit. Therefore all switches perform soft-switching when the switches are turned on and off. Thus the proposed system reduces switching loss and voltage stress. Keywords: Induction heating, resonant converter, hard switching, soft switching.