Trends in energy conservation technology: Temperature control of induction cooking application using class E resonant inverter

The energy conservation provides a bridge between demand and supply gap of power with minimum capital investment. It avoids wasteful use of energy which can be readily used without any further loss. Induction heating systems do not burn traditional fossil fuels so induction heating is a clean, non-polluting and safe process which helps to meet power requirement. Induction cooking is an application of induction heating which is used for residential and commercial usage. This paper presents temperature control of induction cooker using class E resonant inverter. With the help of class E resonant inverter, high power factor and low line current can be obtained which are very attractive in terms of commercial production. Pulse density modulation (PDM) is used for controlling temperature. The circuit is build using peripheral interface controller (PIC) microcontroller and temperature sensor. Simulation of induction cooker circuit using class E resonant inverter in MATLAB is used for checking dynamic response. The induction cooker's parameters using class E resonant inverter are designed properly and details of design are described. Both hardware and simulation results are compared.