Power adapter and mobile terminal
First Claim
1. A charging method comprising:
- conducting a bidirectional communication between a power supply device and a terminal via a Universal Serial Bus (USB) interface to determine to charge the terminal in a charging mode;
conducting a bidirectional communication between the power supply device and the terminal to determine an output voltage of the power supply device as a charging voltage of the charging mode when a difference between the output voltage of the power supply device and a current voltage of a battery of the terminal is within a predetermined range;
conducting a bidirectional communication between the power supply device and the terminal to determine a charging current of the charging mode, and adjusting an output current of the power supply device to be the charging current of the charging mode; and
conducting a bidirectional communication between the power supply device and the terminal via the USB interface every preset time interval during the process that the terminal is charged in the charging mode, so as to adjust the output current of the power supply device every preset time interval, wherein for each adjustment of the output current of the power supply device, a difference between the output current of the power supply device after adjustment and the output current of the power supply device before adjustment is within a preset range.
1 Assignment
0 Petitions
Accused Products
Abstract
The present disclosure provides a power adapter and a terminal. The power adapter is coupled to a mobile terminal via a USB interface, and a data line of the USB interface is used for a bidirectional communication between the power adapter and the mobile terminal. The power adapter supports a normal charging mode and a quick charging mode, and a charging current of the quick charging mode is greater than a charging current of the normal charging mode. The method includes: communicating, by the power adapter, with the mobile terminal via the data line of the USB interface, so as to determine to charge the mobile terminal in the quick charging mode; and adjusting, by the power adapter, a charging current of the power adapter to be the charging current of the quick charging mode to charge the mobile terminal.
13 Citations
16 Claims
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1. A charging method comprising:
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conducting a bidirectional communication between a power supply device and a terminal via a Universal Serial Bus (USB) interface to determine to charge the terminal in a charging mode; conducting a bidirectional communication between the power supply device and the terminal to determine an output voltage of the power supply device as a charging voltage of the charging mode when a difference between the output voltage of the power supply device and a current voltage of a battery of the terminal is within a predetermined range; conducting a bidirectional communication between the power supply device and the terminal to determine a charging current of the charging mode, and adjusting an output current of the power supply device to be the charging current of the charging mode; and conducting a bidirectional communication between the power supply device and the terminal via the USB interface every preset time interval during the process that the terminal is charged in the charging mode, so as to adjust the output current of the power supply device every preset time interval, wherein for each adjustment of the output current of the power supply device, a difference between the output current of the power supply device after adjustment and the output current of the power supply device before adjustment is within a preset range. - View Dependent Claims (2, 3, 4, 5)
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6. A charging method comprising:
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conducting a handshake communication between a power supply device and a terminal via a first instruction to determine to activate a charging mode; conducting a handshake communication between the power supply device and the terminal via a second instruction to determine an output voltage of the power supply device as a charging voltage of the charging mode when a difference between the output voltage of the power supply device and a current voltage of a battery of the terminal is within a predetermined range; conducting a handshake communication between the power supply device and the terminal via a third instruction to determine a charging current of the charging mode; adjusting an output current of the power supply device to be the charging current of the charging mode; and conducting a handshake communication between the power supply device and the terminal via a fourth instruction every preset time interval during the process that the terminal is charged in the charging mode, so as to adjust the output current of the power supply device every preset time interval, wherein for each adjustment of the output current of the power supply device, a difference between the output current of the power supply device after adjustment and the output current of the power supply device before adjustment is within a preset range. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A power supply device comprising:
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at least one processor; and a computer readable memory, coupled to the at least one processor and storing at least one computer executable instruction therein which, when executed by the at least one processor, causes the at least one processor to perform acts comprising; conducting a bidirectional communication with a terminal via a Universal Serial Bus (USB) interface to determine to charge the terminal in a charging mode; conducting a bidirectional communication with the terminal to determine an output voltage of the power supply device as a charging voltage of the charging mode when a difference between the output voltage of the power supply device and a current voltage of a battery of the terminal is within a predetermined range; conducting a bidirectional communication with the terminal to determine a charging current of the charging mode, and adjusting an output current of the power supply device to be the charging current of the charging mode; and conducting a bidirectional communication with the terminal via the USB interface every preset time interval during the process that the terminal is charged in the charging mode, so as to adjust the output current of the power supply device every preset time interval, wherein for each adjustment of the output current of the power supply device, a difference between the output current of the power supply device after adjustment and the output current of the power supply device before adjustment is within a preset range. - View Dependent Claims (13, 14, 15, 16)
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Specification