Analysis and simulation of LCLR converters

In the last decades, induction heating systems have gained ground not only in fields such as industrial applications for heating, training or melting metal, but also in home appliances, such as those for cooking. The following work proposes to design a system, which will be able to heat metal using induction heating. The power transfer process will be optimized by limiting or even eliminating switching losses using techniques such as zero current/voltage switching and by designing a class D series-parallel LCLR resonant circuit, which operates at the resonant frequency. The intent of this presentation is to present the details of a LCLR converter, that ca be used in induction heating applications. The paper will present a simulation and a design method for such type of converters, with an extended analysis of the output stage that can be assimilated like a LCLR circuit.