Beijing Xiaomi Mobile Software Co., Ltd.

Xiaomi Inc.

Huawei Technologies Co., Limited

Peking University

Jie Fan

Changyu Sun

Wei Sun

Jiwu Shu

Guanyu Zhu

Hui Li

Chao Xi Chen

Yong Zhu

Jian Zhou

Yanteng Wang

Yangyuan Wang

Fei Xie

Zhijie Li

Zhenfei Lei

Xinming Shi

Shanrong Liu

Zhiwu Li

Guizhen Yan

Xuesong Liu

Chang Yu Sun

Ning Chao Li

Xuede Lv

A charging circuit is provided. The charging circuit includes a protection circuit and a charging control switch connected in series, and a transfer switch. The transfer switch is configured to switch to a first charging circuit by connecting to the protection circuit, and switch to a second charging circuit by connecting to the charging control switch. A maximum charging voltage of the first charging circuit is lower than a maximum charging voltage of the second charging circuit.

Method for charging wireless headset, charging circuit and charging case

A charging system includes: a first battery, a second battery, a switch device, a charging component, and a control component. A capacity of the second battery is smaller than that of the first battery. The switch device is disposed outside the second battery and connected to the second battery. The charging component is connected to the first battery and connected to the second battery via the switch device, and configured to output a charging current to the first battery and the second battery. The control component is connected with the first battery and the second battery, and configured to detect remaining capacity of the first battery and the second battery during a charging process and control the switch device to turn on or turn off based on the remaining capacity.

Charging system, method, apparatus and terminal device

An electronic apparatus includes: a display; a processor configured to, when a battery of the electronic apparatus is to be charged, obtain a display state of the display and generate a mode-selection signal according to the display state; and a battery management circuit connected to the processor and configured to, upon receiving the mode-selection signal, switch to one of a charge pump charging mode or a direct charging mode based on the mode-selection signal to charge the battery.

Electronic apparatus and charging method thereof, and storage medium

A charging control method and apparatus are provided. The electronic device can include a first circuit board, a second circuit board, and a charge pump chipset. The second circuit board is provided on the first circuit board. The charge pump chipset includes at least two charge pump chips on the first circuit board and at least two charge pump chips on the second circuit board connected in parallel. One charge pump chip on the first circuit board and at least one charge pump chip on the second circuit board are controlled to be in a working state at the same time. In response to a temperature of the charge pump chip in the working state on the first circuit board being higher than a threshold, any charge pump chip on the first circuit board with the temperature lower than the threshold is switched to the working state.

Method and apparatus for controlling charge pump chips

A charging system includes: a first battery, a second battery, a charging component, and a control component. A capacity of the second battery is smaller than that of the first battery. The second battery includes a cell and a switch device connected to the cell. The charging component is connected to the first battery and connected to the second battery via the switch device, and configured to output a charging current to the first battery and the second battery. The control component is connected with the first battery and the second battery, and configured to detect electric quantity of the first battery and the second battery during a charging process and control the switch device to turn on or turn off based on the electric quantity.

A wireless charging method can be applied to a wireless charging device and include: acquiring a charging parameter of a target electronic device, in which the charging parameter includes a current temperature parameter of the target electronic device; and dynamically adjusting a magnetic levitation distance between the wireless charging device and the target electronic device according to the temperature parameter.

Wireless charging method, electronic device, and readable storage medium

A charging circuit applied to a first electronic device includes a charging interface, a charging module coupled therewith and configured to detect a connection between the charging interface and a second electronic device, and adjust a current output to the second electronic device, a reverse charging protocol module, and a control module. The reverse charging protocol module is configured to determine a reverse charging protocol matched with the charging current of the second electronic device. The control module is coupled with the charging module and the reverse charging protocol module, and configured to acquire the reverse charging protocol determined by the reverse charging protocol module in response to the connection between the charging interface and the second electronic device, and control the charging module to adjust the current output to the second electronic device based on the reverse charging protocol. The charging circuit can increase the reverse charging current.

Charging circuit, electronic device, charging control method and device

A wireless power receiving device includes: a wireless power receiving coil, an AC-DC circuit, a capacitor buck circuit, and a battery, wherein the capacitor buck circuit includes at least two capacitors and a switch; an output terminal of the wireless power receiving coil is connected to an input terminal of the AC-DC circuit, and an output terminal of the AC-DC circuit is connected to an input terminal of the capacitor buck circuit, and an output terminal of the capacitor buck circuit is connected to the battery; in a case that the switch is in a first connection state, the at least two capacitors are in a series state and store energy; and in a case that the switch is in a second connection state, the at least two capacitors are in a parallel state and release energy.

Wireless power receiving device, wireless charging method and system

A charging circuit includes: an interface, a plurality of batteries connected in series, a first charging portion which is connected to the interface and is connected in series with the plurality of batteries, a second charging portion which is connected to the interface and is connected in series with at least one battery, and a first switching circuit which is connected with the second charging portion and is configured to switch a conducting state between the second charging portion and the at least one battery connected in series with the second charging portion, wherein when the first charging portion is in a charging state and the second charging portion is connected with the at least one battery, the charging circuit is switched to an asynchronous charging mode.

Charging circuit, electronic device, charging method and charging device

A battery charging method applied to a terminal, includes: charging a battery with an initial-stage charging current in an initial stage, until a charge state of the battery satisfies a preset condition, wherein the initial-stage charging current is a maximum tolerable charging current of the battery determined according to charging configuration information of the battery; and charging the battery with a subsequent-stage charging current in a subsequent stage after the initial stage, wherein the subsequent-stage charging current is determined according to the charging configuration information and is smaller than the maximum tolerable charging current.

Battery charging method, battery charging apparatus and storage medium

A battery module includes a first battery and a discharge circuit. The discharge circuit is connected in parallel to a positive electrode and a negative electrode of the first battery. The discharge circuit is configured to discharge the first battery according to a control signal during charging of the first battery.

Battery module, charging method and apparatus, electronic device, and readable storage medium

A charging method includes: obtaining a first temperature at a preset position on an electronic device when constant-current charging is performed on a battery of the electronic device at a first constant current; in response to that the first temperature exceeds a preset first temperature threshold, obtaining a first voltage currently present at a designated position in the electronic device, and obtaining a second constant current preset in the electronic device; performing first constant-voltage charging on the battery at the first voltage until a charging current during the first constant-voltage charging is changed to the second constant current; and performing the constant-current charging on the battery at the second constant current.

Charging method and device, electronic device and storage medium

An electronic device includes a first battery, a second battery, and a serial-parallel conversion circuit. The serial-parallel conversion circuit is coupled to the first battery and the second battery, and is configured to, according to a control signal, couple the first battery and the second battery in series so as to reversely charge on a to-be-charged device by the first battery and the second battery, or couple the first battery and the second battery in parallel so as to supply power to the electronic device by the first battery and the second battery.

Electronic device, charging method and device, and computer-readable storage medium

The present disclosure discloses a charging circuit, a terminal and a charging method, and belongs to a field of electronic circuit technologies. The charging circuit includes: a control circuit and a voltage reduction circuit connected to the control circuit; wherein the control circuit is configured to obtain a feedback signal indicating a generation frequency of a control signal, generate the control signal based on the feedback signal, and send the control signal to the voltage reduction circuit; and the voltage reduction circuit is configured to obtain an input voltage and the control signal, perform voltage reduction processing on the input voltage based on the control signal and output an output voltage to a battery, wherein an output current corresponding to the output voltage is greater than an input current corresponding to the input voltage, and the output voltage is configured to determine the generation frequency.

Charging circuit, terminal and charging method

A device for detecting light intensity, a display screen and a mobile terminal are provided. The device for detecting light intensity includes a controller, and a first photosensitive sensor and a second photosensitive sensor which are electrically coupled to the controller, the first photosensitive sensor and the second photosensitive sensor being spaced apart and located in a same illumination environment, and the controller is configured to, when an external beam illuminates the first photosensitive sensor, perform calculation based on a difference value between illumination parameters of the first photosensitive sensor and the second photosensitive sensor to obtain a light intensity of the external beam.

Growing community of inventors

Beijing, China

Jie Fan