Huawei Device Co., Ltd.

Huawei Device (dongguan) Co., Ltd.

Changqi Li

Yanguo He

Fengxin Wang

Nan Lu

Lixiang Zheng

Kelin Li

Bingwu Luo

Yanfeng Zhao

Jianbing Yu

A power supply terminal, and a charging control method are disclosed. The power supply terminal includes a USB port, a switch, a power source module, and a processor, where the USB port is configured to connect to a power receiving terminal; one end of the power source module is connected to a power source pin VBUS of the USB port and is configured to charge the power receiving terminal by using the power source pin VBUS; a first end of the switch is connected to the data pin D+ and a second end of the switch is connected to the data pin D&#x2212;; when the switch is on and the processor detects that a drop amplitude of the output voltage of the power source module exceeds a preset value, in a process in which the power source module outputs a voltage to charge the power receiving terminal.

Systems and methods for charging via USB port

A thermal protection circuit which relates to the field of electronic technologies can detect temperature of multiple locations simultaneously and adjust a preset threshold flexibly, thereby improving system reliability. The thermal protection circuit includes: at least one temperature sensor, a detection circuit, an execution circuit, a self-locking and triggering circuit, a protective temperature regulation circuit, and a power supply circuit. The at least one temperature sensor converts a temperature signal into an electrical signal and sends the electrical signal to the detection circuit; the detection circuit detects whether temperature reaches the preset threshold, and sends a turn-off signal to the execution circuit if the temperature reaches the preset threshold; the execution circuit cuts off power supply to the system; and the self-locking and triggering circuit maintains, a power-off state of the system until a power switch is triggered.

Thermal protection circuit

A battery, a battery assembly, and a user equipment are disclosed. The battery includes a circuit board and a cell. The circuit board includes a first contact, a second contact, a third contact, a fourth contact, a battery management module, and a control switch. The first contact reports a capacity of the cell in the battery, or in the battery and a cascaded battery to an upper-level battery or an electricity load; the second contact receives and output the capacity of the cell in the cascaded battery; when the control switch is opened, the third contact is connected to the cell in the battery to charge or discharge the cell in the battery; when the control switch is closed, the fourth contact is connected to the third contact; and the battery management module triggers opening or closing of the control switch.

Battery, battery assembly, and user equipment

Embodiments of the present invention disclose a charging and discharging management apparatus and a mobile terminal. The charging and discharging management apparatus may include a charging and discharging management chip, primary battery positive and negative electrode contacts, secondary battery positive and negative electrode contacts, and electronic switches connected to the primary battery positive and negative electrode contacts and the secondary battery positive and negative electrode contacts, a detecting unit configured to detect in-place states of a primary battery and a secondary battery, and an electronic switch controlling unit connected to the detecting unit and configured to control the electronic switches to be on/off according to the in-place states of the batteries to enable the charging and discharging management chip to perform charging and discharging management for a battery in place.

Growing community of inventors

Xi'an, China

Changqi Li