Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Hongbin Xie

Jialiang Zhang

Jun Zhang

Shebiao Chen

The present disclosure discloses a method for charging and discharging control, and a device. The method can be applied to a device. The device includes a first battery unit and a second battery unit which are connected in series, and a balance module. The second battery unit supplies power for the device. The method includes, when the voltage of the second battery unit is equal to or less than a first preset voltage threshold, transferring the power in the first battery unit to the second battery unit through the balance module, such that the voltage of the second battery unit is greater than the first voltage threshold.

Charging and discharging control method, and device

The present disclosure discloses an apparatus and a method for power supply and an electronic device. The apparatus for power supply includes a first battery and a second battery connected in series, a first voltage step-down module and a control module. The first battery is a silicon negative lithium ion battery. The control module is configured to control the voltage step-down module to step down the voltage of the first battery and the second battery to supply power based on power supply demands, in a power supply process.

Apparatus and method for power supply and electronic device

A power supply circuit, a charging-discharging circuit and an intelligent terminal are provided. The power supply circuit includes a lithium-ion battery unit having a silicon anode and a lithium-ion battery unit having a carbon anode. The lithium-ion battery unit having the silicon anode is connected in series with the lithium-ion battery unit having the silicon anode, cooperatively supplying power to the to-be-powered unit. A battery system of the intelligent terminal is formed by the lithium-ion battery unit having the silicon anode and the lithium-ion battery unit having the carbon anode and supplies power to the to-be-powered unit. Therefore, constant voltage performance of the lithium-ion battery unit having the carbon anode is utilized effectively, further large capacity and large power margin at low supply voltage of the lithium-ion battery unit having the silicon anode is utilized effectively.

Power supply circuit, charging-discharging circuit and intelligent terminal

A device to be charged and a charging and discharging control method are disclosed. The device to be charged includes: a first battery unit and a second battery unit connected in series; a charging circuit electrically connected to the first battery unit and the second battery unit; a first switch and a second switch electrically connected to the charging circuit, the first battery unit, and the second battery unit; and a control module electrically connected to the charging circuit, the first switch, and the second switch to control the first switch and the second switch according to a received control instruction, to enable the charging circuit to charge the first battery unit and the second battery unit, or enable the charging circuit to charge the second battery unit, wherein a charge rate of the first battery unit is lower than a charge rate of the second battery unit.

Device to be charged, and charging and discharging control method

Embodiments of the present disclosure disclose a method for charging, an apparatus for charging, a device and a storage medium. The method includes determining a degree of change in charging performance of a battery corresponding to a current voltage range when the battery is in a charging state; determining an adjustment amplitude of a current charging current based on the degree of change when the degree of change satisfies a condition; determining a target charging current based on the adjustment amplitude and the current charging current; and charging the battery with the target charging current.

Method and apparatus for charging, device, and storage medium

A power supply device, an electronic apparatus, and a power supply method are provided. The power supply device comprises a first buck circuit used to convert, if a single battery cell in N cells connected in series has a voltage lower than a shutdown voltage of an electronic apparatus, a total voltage of the N cells into a power supply voltage of the electronic apparatus, such that the power supply voltage is higher than or equal to the shutdown voltage, N being an integer greater than or equal to 2; and a first power supply channel used to supply power to a system of the electronic apparatus according to the power supply voltage.

Growing community of inventors

Dongguan, China

Hongbin Xie