How Induction Cooker works

How Induction Cooker works

Induction heating is a completely different method to generate heat as compared with conventional electric heaters such as Coils, Halogen heaters etc. In an induction heater, the cooking vessel itself is a part of heat generating device, or the cooking vessel itself generate heats. In Coils, Hot Plates and Halogen heaters, heat is transferred to cooking vessels through physical contact or proximity. In this case a considerable amount of heat energy is lost.

Induction cookers make use the heating effect of Hysteresis and Eddy current losses of electric machines. These losses are the predominant losses which is termed as “iron losses or core losses” in electric machines like Motors, Generators, Transformers etc. In that case we try to reduce the energy lose due to the iron losses, but here in Induction heating we are generating heat or converting electric energy to heat energy. In other words here we are multiplying the iron losses to generate heat.

Induction heater consists of following parts

High frequency oscillator.
Power supply circuits
Specially designed induction coil to generate electro magnetic field.
Control and timer circuits.
Ceramic Cooktop.