Patent ID: 11882640
Assignee: LG ELECTRONICS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for controlling an induction heating apparatus, comprising:
driving a first working coil at a first driving frequency corresponding to a first power value;
driving a second working coil at a second driving frequency corresponding to a second power value;
changing the first power value of the first working coil to a third power value;
determining a third driving frequency of the first working coil corresponding to the third power value;
determining a difference value between the third driving frequency of the first working coil and the second driving frequency of the second working coil;
determining that the determined difference value is within a predetermined range;
changing an operation mode or a power control mode of a first inverter circuit configured to supply current to the first working coil; and
changing an output power value of the first working coil to the third power value.