Patent ID: 11942800
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 13:
14. An electronic device comprising:
a connector configured to connect to external power;
a battery;
a charging circuit configured to control a charging state of the battery;
a coil;
a wireless power transfer circuit configured to be electrically connected to the coil; and
a control circuit,
wherein the control circuit is configured to:
in case that an external power is connected to the electronic device:
identify an amount of power flowing into the electronic device from the external power supply device through the connector,
charge the battery with the amount of power flowing into the electronic device from the external power supply device through the connector using the charging circuit,
determine a transferrable power amount based on the amount of power flowing into the electronic device from the external power supply device and a power amount for charging the battery of the electronic device,
wherein the transferrable power amount is determined by subtracting the power amount for charging the battery of the electronic device from the power flowing into the electronic device from the external power supply device,
if the transferrable power amount is equal or greater than the first threshold, transmit a first power signal, which is generated using the wireless power transfer circuit, to the external electronic device through the coils,
identify a state related to charging of the battery,
determine a wireless charging parameter determined at least based on the state related to charging of the battery,
if the transferrable power amount is less than a first threshold, transmit the wireless charging parameter including an information that the control circuit is disable to transmit the first power signal to the external electronic device through a radio access technology (RAT),
receive a response signal corresponding to transmission of the wireless charging parameter from the external electronic device, and
transmit, based on the response signal, a second power signal to the external electronic device using the wireless power transfer circuit, and

in case that the external power device is not connected to the electronic device:
if an amount of remaining battery is less than a second threshold, transmit the wireless charging parameter including the information that the control circuit is disable to transmit the first power signal to the external electronic device through the RAT; and
if the amount of remaining battery is equal or greater than the second threshold, transmit the first power signal to the external electronic device through the coil.