INDUCTION COOKER AND METHOD FOR CONTROLLING SAME

摘要

An induction-heating cooker according to one aspect of the present invention comprises a top plate for supporting a heated body thereon, a central coil wound on a plane, a peripheral coil arranged around the central coil, a drive circuitry supplying high-frequency current to the central coil and the peripheral coil, a power source applying direct voltage across the drive circuitry, means for detecting load resistance of portions of the heated body positioned over the central coil and the peripheral coil through the top plate, and a controller for controlling the drive circuitry, in accordance with the load resistance of the portions of the heated body, in either one of drive modes selected from a parallel drive mode in which the drive circuitry is controlled with both of the central coil and the peripheral coil being connected in parallel across the power source, a serial drive mode in which the drive circuitry is controlled with the central coil and the peripheral coil being connected in series across the power source, and an individual drive mode in which the drive circuitry is controlled with either one of the central coil and the peripheral coil being connected across the power source.