Patent ID: 11962175
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic device, comprising:
a battery;
a resonance circuit configured to wirelessly receive power;
a rectifier configured to rectify an alternating current (AC) power provided from the resonance circuit into a direct current (DC) power;
a DC/DC converter configured to convert the DC power provided from the rectifier to output a converted power;
a charger configured to charge the battery using the converted power provided from the DC/DC converter;
a switch configured to connect the rectifier and the DC/DC converter to be provided the DC power from the rectifier in an on state or disconnect the rectifier and the DC/DC converter not to be provided the DC power from the rectifier in an off state, wherein the switch is in the off state before the charging is started by the charger;
an overvoltage protection circuit configured to perform an overvoltage protection operation based on a voltage at an output terminal of the rectifier being greater than or equal to a first threshold voltage, and to stop the overvoltage protection operation based on the voltage at the output terminal of the rectifier being less than or equal to a second threshold voltage after the overvoltage protection operation is performed;
a control circuit; and
a communication circuit,
wherein while the switch is in the off state, the control circuit is configured to:
based on a periodic repetition of a performance of the overvoltage protection operation and a stop of the overvoltage protection operation, identify a first period during which the overvoltage protection operation is stopped;
based on the first period, identify an expected voltage at an output terminal of the rectifier, to be expected, wherein the expected voltage is a voltage at the output terminal of the rectifier if the switch is in the on state;
based on the expected voltage, identify whether or not an occurrence of an overvoltage is expected if the switch is in the on state; and
control the communication circuit to transmit a communication signal including information about whether or not the occurrence of the overvoltage is expected if the switch is in the on state.