Class-D/E Resonant Inverter for Multiple-Load Domestic Induction Cooking Appliances

This paper presents a class - D/E resonant inverter for multiple-load domestic induction cooking appliances. Most of the induction inverter configurations used in home appliances is based on single coil inverter. In these configurations, the vessel size cannot be more than induction coil size. The proposed configuration is suitable for any size of vessel and also can be used for multiple-loads. It operates with constant switching frequency and independent control of each load. The output power of each load can be controlled with asymmetrical duty cycle control technique for class-D configuration and with asymmetrical voltage cancellation control technique for class-E configuration. The proposed configuration and control techniques are simulated and experimentally tested with two loads. Simulation and experimental results are in good agreement. This configuration can be extended to multiple-loads.