Samsung Electronics Co., Ltd.

Jaemu Ha

Byungwook Kim

Youngmi Ha

Sungjoon Cho

Jongkyu Lee

Jaesung Lee

Jungmin Lee

Juhyang Lee

Kyounghoon Kim

Hyunho Park

Hansol Choi

Moo-Young Kim

Inhwan Hwang

Duhyun Kim

Seungbeom Kang

Hyungjun Kwon

Ki-Jong Byun

Hyunjun Oh

Minjeong Lee

Jaekyong Choi

Kwanbae Son

Daeneung Kim

Boeun Lee

An electronic device is provided. The electronic device includes a first communication circuit, a second communication circuit, a power transmission coil, and a control circuit. The control circuit is configured to connect an external electronic device and the first communication circuit, transmit power to the external electronic device, receive, from the external electronic device, a first signal including a control error packet (CEP) at a first time point, after the first point in time, count a first number of times a specified unit time elapses without the first signal being received, if the first number of times corresponds to a specified first threshold value, transmit, to the external electronic device, a second signal for requesting a second communication connection, and connect the external electronic device and the second communication based on reception of a third signal including a response of the external electronic device to the second signal.

Wireless charging method and electronic device supporting same

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 power interface exposed through at least a portion of the housing to be connected to an external power source in a wired manner or disposed inside the housing to be connected to the external power source in a wireless manner, at least one battery disposed inside the housing and electrically connected to the power interface, a processor disposed inside the housing and operatively connected to the power interface, and a memory disposed inside the housing and operatively connected to the processor. The memory stores instructions that, when executed, causes the processor to, in a state in which an external power is supplied through the power interface, when a voltage of the battery reaches a first voltage value, lower the voltage of the battery to a second voltage value lower than the first voltage value by discharging the battery after a first time has elapsed from a time point at which the voltage of the battery reaches the first voltage value.

Method of controlling charging of battery and electronic device to which the method is applied

An electronic device is provided. The electronic device includes a housing, a first battery and a second battery arranged in the housing, a power management module, a first temperature sensor, a second temperature sensor, a first current limiting integrated circuit (IC) configured to limit a maximum intensity of a first current flowing into the first battery, a second current limiting IC configured to limit a maximum intensity of a second current flowing into the second battery, and a processor. The processor may determine whether the first temperature or the second temperature is outside a specified temperature range and, when the first temperature is outside of the specified temperature range, control the first current limiting IC to reduce a magnitude of the first current.

Method of controlling charging of plurality of batteries and electronic device to which the method is applied

A method and an apparatus for detecting a battery state of an electronic device are provided. The electronic device includes a battery, a charger circuit for charging the battery, a measurement circuit for checking a state of the battery, and a processor configured to charge the battery using the charger circuit, determine whether the charging operation satisfies a preset condition, when the charging operation satisfies the preset condition, obtain first state information of the battery using the measurement circuit, determine an abnormal state of the battery at least based on a difference between the first state information and second state information which is obtained when the preset condition is satisfied before the first state information is acquired, and output notification information regarding the abnormal state.

Method and apparatus for determining abnormal state of battery

Various embodiments of the disclosure relate to an apparatus and method for preventing overcharging of a battery. In this case, the electronic device includes a battery, at least one processor, and a memory electrically coupled to the at least one processor. The memory may store instructions, when executed, allowing the at least one processor to set a charge safety time corresponding to an external device upon connection with the external power device, charge the battery, based at least in part on power of the external power device, and update the charge safety time, based on a change of at least one of charging current and discharging current of the battery. Other embodiments may also be possible.

Method for preventing overcharging of battery and electronic device therefor

Growing community of inventors

Gyeonggi-do, South Korea

Jaemu Ha