US 11,720,156 B2
Electronic device
Yuki Tsujimoto, Tokyo (JP); Hiroki Kitanosako, Tokyo (JP); and Masashi Yoshida, Miura-gun (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 22, 2020, as Appl. No. 16/936,299.
Claims priority of application No. 2019-141731 (JP), filed on Jul. 31, 2019.
Prior Publication US 2021/0034126 A1, Feb. 4, 2021
Int. Cl. G06F 1/26 (2006.01); G06F 13/40 (2006.01); H02J 7/00 (2006.01); G06F 13/42 (2006.01)
CPC G06F 1/266 (2013.01) [G06F 13/4022 (2013.01); G06F 13/4282 (2013.01); H02J 7/0042 (2013.01); G06F 2213/0042 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a connector;
a central processing unit (CPU); and
a memory that stores a program which, when executed by the CPU, causes the electronic device to function as:
a power receiving unit that receives power from a power supply apparatus connected to the connector via a first terminal;
a power control unit that controls the power receiving unit; and
a communication control unit that communicates with the power supply apparatus connected to the connector via a second terminal,
wherein the communication control unit receives a power list about power supply capability of the power supply apparatus from the power supply apparatus connected to the connector and notifies the power control unit of the reception of the power list in accordance with the reception of the power list from the power supply apparatus,
wherein the communication control unit transmits a power request for requesting of power to the power supply apparatus via the second terminal in accordance with the power list received from the power supply apparatus,
wherein the power control unit performs a process for limiting current received by the power receiving unit to a predetermined value or less so as to limit power received from the power supply apparatus to a predetermined power lower than the requested power or less, in accordance with the notification of the reception of the power list from the communication control unit,
wherein the power receiving unit receives the predetermined power or less from the power supply apparatus via the first terminal in a case where the process for limiting the current is performed,
wherein the communication control unit receives, from the power supply apparatus, a completion notification that a voltage change to a requested voltage in the power request by the power supply apparatus is completed and notifies the power control unit of the reception of the completion notification in accordance with the reception of the completion notification from the power supply apparatus,
wherein the power control unit performs a process for cancelling the limiting of the current received by the power receiving unit in accordance with the notification of the reception of the completion notification from the communication control unit, and
wherein the power receiving unit receives the requested power higher than the predetermined power from the power supply apparatus via the first terminal in a case where the process for cancelling the limiting of the current is performed.