The simple temperature control for induction cooker based on class-E resonant inverter

This paper presents a simple temperature control for high efficiency induction cooker based on class-E DC-AC resonant inverter. The active switch can be operated under the zero-voltage switching conditions. The conduction loss of the anti-parallel diode of the active switch and the harmonic currents injected into the public supply system can be reduced. The high power-factor and low line current harmonic distortion can be obtained, which are very attractive in term of commercial production. In order to achieve upon this objective, the induction cooker's parameters need to be designed properly and details of analysis and design of this induction cooker's components are described. A proposed high efficiency induction cooker is designed for an operating at a 32-kHz frequency, a 220-V line rms voltage, a 50-Hz line frequency and a 1.2-kW output power.