公开(公告)号：US20230142785A1

公开(公告)日：2023-05-11

申请号：US17992291

申请日：2022-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hangseok CHOI ,  Sangwoo KANG

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2330/028

Abstract: An electronic device including a power supply circuit according to the disclosure may include: a battery; a display module including a display panel; a regulator; a power supply circuit configured to: based on an input voltage of the battery, provide a first voltage and a second voltage to the display module, and provide a third voltage to the regulator; and a switch control circuit configured to: control a switching operation of the power supply circuit, wherein the power supply circuit includes: a first power circuit and a second power circuit, wherein the first power circuit includes multiple switch elements, a first capacitor, a second capacitor, a third capacitor, and a first inductor, and is configured to: for a first time interval, based on a drive signal of the switch control circuit, charge the first capacitor and the second capacitor, based on a current of the first inductor and discharge the third capacitor to provide a first output current to the display module, and for a second time interval, based on a drive signal of the switch control circuit, charge the third capacitor and discharge the first capacitor and the second capacitor to provide the first output current and a second output current to the display module, and wherein the second power circuit is configured to: convert a voltage level of the input voltage of the battery to provide a second voltage to the display module.

公开(公告)号：US20220181889A1

公开(公告)日：2022-06-09

申请号：US17539575

申请日：2021-12-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hangseok CHOI

IPC: H02J7/00 ,  H01M10/44

Abstract: An electronic device is provided. The electronic device includes a charger, a first battery pack electrically connected to the charger through a first path, a second battery pack electrically connected to the charger through a second path having a higher impedance than the first path, and a processor electrically connected to the charger, the first battery pack, and the second battery pack. The processor is configured to activate a constant current function of a first load switch included in the first battery pack when a first condition is satisfied, and to allow the charger to decrease an output current of the charger until the constant current function of the first load switch is deactivated.

公开(公告)号：US20220077695A1

公开(公告)日：2022-03-10

申请号：US17500561

申请日：2021-10-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hangseok CHOI

IPC: H02J7/00

Abstract: In various embodiments, an electronic device may include: a connection terminal configured to connect to an external power supply device; a switching circuit including an input terminal connected to the connection terminal, a first output terminal, and a second output terminal; a first battery and a second battery connected to the power supply device in series through the first output terminal and physically separated from each other; a charging circuit configured to adjust a voltage or a current of power received through the second output terminal and output the adjusted voltage or current to the first battery and the second battery; a monitoring circuit configured to monitor a voltage of the first battery and a voltage of the second battery; a protection circuit configured to monitor a current charged to the first battery and a current charged to the second battery and to suspend charging of the first battery and charging of the second battery; and a processor connected to the switching circuit, the charging circuit, the monitoring circuit, and the protection circuit, and connected to the power supply device through the connection terminal. The processor may be configured to: control the switching circuit to connect the input terminal to the first output terminal or the second output terminal; select one of the first battery and the second battery as a first sensing object based on data indicating the voltage of the first battery and data indicating the voltage of the second battery, the data being received from the monitoring circuit; output a first control signal causing suspension of charging of the first sensing object to the protection circuit on the basis of a result of monitoring of a current output from the first sensing object; select another one of the first battery and the second battery as a second sensing object based on the suspension of the charging of the first sensing object; and output a second control signal causing suspension of charging of the second sensing object to the protection circuit based on a result of monitoring of a current output from the second sensing object.