System simulation and realization of a resonant inverter with a field-controlled thyristor

The design, simulation, and realization of a single-ended quasi-resonant inverter (SEQRI) for induction heating applications are described. A novel power device, the field-controller thyristor (FCT), is used as a switching device. Full understanding and a proper realization of the circuit is obtained by accurate simulation with a software tool combining circuit and two-dimensional device simulation. With the use of combined circuit/device simulation, the operation of the system is predicted accurately. Comparison with experimental data showed excellent agreement. It is verified that a 15 A/1700 V FCT is an appropriate switching device for a SEQRI fed from a 220 V mains and delivering an output power of 1 kW.<
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