Patent ID: 11923797
Assignee: LG ELECTRONICS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 9:
10. The motor driving device of claim 9, wherein the controller is configured to:
(i) calculate a first winding resistance and a second winding resistance for each period,
(ii) based on a range of the first winding resistance for each period deviating from a first range and a range of the second winding resistance for each period deviating from a second range, determine a failure of the motor,
(iii) based on the range of the first winding resistance for each period being within the first range, and the range of the second winding resistance for each period being within the second range, determine that the switching device is normal, and
(iv) control the switching device to switch the windings of the motor from the first connection to the second connection according to the operation frequency of the motor.