Method and induction heating device for determining a temperature of the base of a cooking vessel heated using an induction heating coil

摘要

The method involves generating a high-frequency drive voltage from intermediate circuit voltage. The drive voltage is applied to resonant circuit. The intermediate circuit voltage is generated over predefined time periods at constant level. The drive voltage is generated over predefined time periods, so that the resonant circuit oscillates at natural resonant frequency. The oscillation parameter of oscillation of resonant circuit is measured over predefined time periods. The measured oscillation parameter is evaluated in order to determine temperature of cooking vessel base. An independent claim is included for induction heating device.