Quick Charging Method, Power Adapter And Mobile Terminal
First Claim
1. A quick charging method, the method being applied in a power adapter, the power adapter being coupled to a mobile terminal via a universal serial bus (USB) interface, a power line of the USB interface being used for the power adapter to charge the mobile terminal, the power adapter supporting a normal charging mode and a quick charging mode, a charging current corresponding to the quick charging mode being greater than a charging current corresponding to the normal charging mode, the method comprising:
- transmitting, by the power adapter, clock signal to the mobile terminal via a first data line of the USB interface in a process that the power adapter is coupled to the mobile terminal, wherein the clock signal is used for indicating a communication sequence between the power adapter and the mobile terminal;
conducting, by the power adapter, a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence, so as to determine to charge the mobile terminal in the quick charging mode and negotiate with the mobile terminal to determine the charging current corresponding to the quick charging mode;
wherein the communication sequence comprises instruction transmission time slots of the power adapter and instruction reception time slots of the power adapter, and the instruction transmission time slots and the instruction reception time slots are alternatively generated;
the conducting, by the power adapter, a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence to determine to charge the mobile terminal in the quick charging mode comprises;
transmitting, by the power adapter, a first instruction to the mobile terminal via the second data line during the instruction transmission time slot of the power adapter, the first instruction being used for querying the mobile terminal for whether or not to activate the quick charging mode;
receiving, by the power adapter, a reply instruction corresponding to the first instruction via the second data line during the instruction reception time slot of the power adapter, the reply instruction corresponding to the first instruction being used for indicating that the mobile terminal agrees to activate the quick charging mode; and
determining, by the power adapter, to charge the mobile terminal in the quick charging mode according to the reply instruction corresponding to the first instruction; and
adjusting, by the power adapter, a charging current of the power adapter to the charging current corresponding to the quick charging mode to charge the mobile terminal.
1 Assignment
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Accused Products
Abstract
A quick charging method, a power adapter, and a mobile terminal are provided. The method includes: transmitting, by the power adapter, clock signal to the mobile terminal via a first data line of the USB interface in a process of that the power adapter is coupled to the mobile terminal, in which the clock signal indicates a communication sequence between the power adapter and the mobile terminal; conducting, by the power adapter, a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence, 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 the charging current corresponding to the quick charging mode to charge the mobile terminal.
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Citations
20 Claims
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1. A quick charging method, the method being applied in a power adapter, the power adapter being coupled to a mobile terminal via a universal serial bus (USB) interface, a power line of the USB interface being used for the power adapter to charge the mobile terminal, the power adapter supporting a normal charging mode and a quick charging mode, a charging current corresponding to the quick charging mode being greater than a charging current corresponding to the normal charging mode, the method comprising:
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transmitting, by the power adapter, clock signal to the mobile terminal via a first data line of the USB interface in a process that the power adapter is coupled to the mobile terminal, wherein the clock signal is used for indicating a communication sequence between the power adapter and the mobile terminal; conducting, by the power adapter, a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence, so as to determine to charge the mobile terminal in the quick charging mode and negotiate with the mobile terminal to determine the charging current corresponding to the quick charging mode;
wherein the communication sequence comprises instruction transmission time slots of the power adapter and instruction reception time slots of the power adapter, and the instruction transmission time slots and the instruction reception time slots are alternatively generated;
the conducting, by the power adapter, a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence to determine to charge the mobile terminal in the quick charging mode comprises;
transmitting, by the power adapter, a first instruction to the mobile terminal via the second data line during the instruction transmission time slot of the power adapter, the first instruction being used for querying the mobile terminal for whether or not to activate the quick charging mode;
receiving, by the power adapter, a reply instruction corresponding to the first instruction via the second data line during the instruction reception time slot of the power adapter, the reply instruction corresponding to the first instruction being used for indicating that the mobile terminal agrees to activate the quick charging mode; and
determining, by the power adapter, to charge the mobile terminal in the quick charging mode according to the reply instruction corresponding to the first instruction; andadjusting, by the power adapter, a charging current of the power adapter to the charging current corresponding to the quick charging mode to charge the mobile terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power adapter, the power adapter being configured to be coupled to a mobile terminal via a USB interface, a power line of the USB interface being used for the power adapter to charge the mobile terminal, the power adapter supporting a normal charging mode and a quick charging mode, a charging current corresponding to the quick charging mode being greater than a charging current corresponding to the normal charging mode, the power adapter comprising:
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a communication unit configured to transmit clock signal to the mobile terminal via a first data line of the USB interface in a process that the power adapter is coupled to the mobile terminal, wherein the clock signal is used for indicating a communication sequence between the power adapter and the mobile terminal; and
the communication unit is further configured to conduct a bidirectional communication with the mobile terminal via a second data line of the USB interface under control of the communication sequence, so as to determine to charge the mobile terminal in the quick charging mode and negotiate with the mobile terminal to determine the charging current corresponding to the quick charging mode;
wherein the communication sequence comprises instruction transmission time slots of the power adapter and instruction reception time slots of the power adapter, and the instruction transmission time slots and the instruction reception time slots are alternatively generated;
the communication circuit is configured to transmit a first instruction to the mobile terminal via the second data line during the instruction transmission time slot of the power adapter, and the first instruction is used to query the mobile terminal for whether or not to activate the quick charging mode;
the communication unit is further configured to receive a reply instruction corresponding to the first instruction via the second data line during the instruction reception time slot of the power adapter, and the reply instruction corresponding to the first instruction is used for indicating that the mobile terminal agrees to activate the quick charging mode; and
the communication unit is further configured to determine to charge the mobile terminal in the quick charging mode according to the reply instruction corresponding to the first instruction; anda current adjusting unit configured to adjust a charging current of the power adapter to the charging current corresponding to the quick charging mode to charge the mobile terminal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A mobile terminal, the mobile terminal being configured to be coupled to a power adapter via a USB interface, a power line of the USB interface being used for the power adapter to charge the mobile terminal, the mobile terminal supporting a normal charging mode and a quick charging mode, a charging current corresponding to the quick charging mode being greater than a charging current corresponding to the normal charging mode, the mobile terminal comprising:
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a communication unit configured to receive clock signal from the power adapter via a first data line of the USB interface in a process that the mobile terminal is coupled to the power adapter, wherein the clock signal is used for indicating a communication sequence between the mobile terminal and the power adapter;
the communication unit is further configured to conduct a bidirectional communication with the power adapter via a second data line of the USB interface under control of the communication sequence, so as to cause the power adapter to determine to charge the mobile terminal in the quick charging mode and to negotiate with the power adapter to determine the charging current corresponding to the quick charging mode, wherein the communication sequence comprises instruction reception time slots of the mobile terminal and instruction transmission time slots of the mobile terminal, and the instruction reception time slots and the instruction transmission time slots are alternatively generated;
the communication unit is configured to receive a first instruction from the power adapter via the second data line during the instruction reception time slot of the mobile terminal, and the first instruction is used to query the mobile terminal for whether or not to activate the quick charging mode; and
the communication unit is further configured to transmit a reply instruction corresponding to the first instruction to the power adapter via the second data line during the instruction transmission time slot of the power adapter, and the reply instruction corresponding to the first instruction is used for indicating that the mobile terminal agrees to activate the quick charging mode; anda charging unit configured to receive the charging current corresponding to the quick charging mode from the power adapter to charge a battery of the mobile terminal. - View Dependent Claims (18, 19, 20)
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Specification