Patent ID: 11876475
Assignee: LG ELECTRONICS INC.
Field: Other consumer goods (Other fields)
Classification: CPC H  D | IPC D  H

Claim 0:
1. A motor control apparatus comprising:
an inverter configured to convert direct current (DC) power into alternating current (AC) power, and to provide the AC power to any one of a plurality of motors;
a switch configured to change connections between the inverter and the plurality of motors; and
a controller configured to:
control the inverter to provide an input signal having a predetermined pattern in response to the changing of the connections, and
provide a control signal based on a response signal corresponding to the input signal,

wherein the controller is configured to:
provide a control signal for controlling the inverter to drive one of the motors connected to the inverter when a magnitude of the response signal is determined to be within a specified range; and
provide a control signal for controlling the switch to again change at least one of the connections when the magnitude of the response signal is determined to exceed the specified range.