Samsung Electronics Co., Ltd.

Hyunjun Oh

Jungmin Lee

Kyounghoon Kim

Kuchul Jung

Youngmi Ha

Sungjoon Cho

Hansol Choi

Inhwan Hwang

Sanghyun Ryu

Jaemu Ha

Minjeong Lee

Yeongil Kim

Seongil Lee

An electronic device includes: a battery; a power management module configured to control the battery; a memory storing a plurality of state-of-charge reference values related to a charging cycle of the battery; at least one processor configured to: control the power management module to charge the battery such that a charging section of the battery alternately includes a plurality of constant current sections, in which charging is performed with a uniform current, and a plurality of constant voltage sections, in which charging is performed with a uniform voltage, identify the charging cycle of the battery, and set a condition for changing from one constant voltage section of the plurality of constant voltage sections to a constant current section following the one constant voltage section of the plurality of constant current sections, based on a state-of-charge reference value corresponding to the identified charging cycle of the battery from among the plurality of state-of-charge reference values stored in the memory.

Electronic device comprising battery, and battery charging method therefor

An electronic device according to various embodiments may include: a battery, a switch coupling the battery to a main board on which components of the electronic device are disposed, a power management module comprising power management circuitry including a function of powering on the electronic device at a power-on time set to power on the electronic device that is in a power-off state of the electronic device, and a processor. The processor may be configured to: upon identification of a power-off request for the electronic device, set the power-on time and power off the electronic device, based on the electronic device being powered on upon identification of the power-on time, compare a power-off period of the electronic device with a threshold period, and based on the power-off period of the electronic device being longer than a threshold period, decouple the battery from the main board by opening the switch.

Electronic device and method of protecting battery in the electronic device

An electronic device is provided. The electronic device includes a housing, a battery disposed inside the housing, a power management module for controlling charging of the battery, and at least one processor operationally connected with the battery and the power management module. The at least one processor is provided to direct a plurality of charging intervals while charging the battery, each of the plurality of charging intervals having a target voltage, to alternately charge the battery in a first mode and in a second mode through the power management module, wherein a charging current flowing into the battery is uniformly maintained in the first mode and a voltage of the battery is uniformly maintained in the second mode, and to switch the first mode to the second mode when the voltage of the battery reaches the target voltage in the first mode.

Method for charging battery and electronic device applying the method

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Suwon-si, South Korea

Hyunjun Oh