Quick charging method, power adapter and mobile terminal
First Claim
1. A quick charging method, applied to a power adapter, the power adapter being coupled to a mobile terminal through a universal serial bus (USB) interface, a power line in the USB interface being configured by the power adapter to charge the mobile terminal, a data line in the USB interface being configured by the power adapter to conduct a bidirectional communication with the mobile terminal, and the power adapter supporting a common charging mode and a quick charging mode, a charging current of the quick charging mode being greater than that of the common charging mode;
- the method comprising;
conducting by the power adapter the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine to charge the mobile terminal in the quick charging mode, negotiating with the mobile terminal about the charging current of the quick charging mode, and conducting by the power adapter the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine a charging voltage corresponding to the quick charging mode; and
adjusting by the power adapter a charging current to the charging current corresponding to the quick charging mode, and adjusting by the power adapter a charging voltage to the charging voltage corresponding to the quick charging mode, so as to charge the mobile terminal;
wherein conducting by the power adapter the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine to charge the mobile terminal in the quick charging mode comprises;
sending by the power adapter a first instruction to the mobile terminal after the power adapter outputs continuously an output current larger than or equal to a preset current to the mobile terminal for a preset period of time, the first instruction being configured to ask the mobile terminal whether to start the quick charging mode;
receiving by the power adapter a replying instruction of the first instruction from the mobile terminal, the replying instruction of the first instruction being configured to indicate that the mobile terminal agrees to start the quick charging mode.
1 Assignment
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Accused Products
Abstract
A quick charging method, a power adapter and a mobile terminal are provided. The method is applied to the power adapter, the power adapter is coupled to the mobile terminal through a USB interface, a power line in the USB interface is used by the power adapter to charge the mobile terminal, a data line in the USB interface is used by the power source adapter to conduct a bidirectional communication with the mobile terminal, and the power adapter supports a common charging mode and a quick charging mode, charging current of the quick charging mode is greater than that of the common charging mode. The method includes: conducting a bidirectional communication with the mobile terminal to determine to charge the mobile terminal in the quick charging mode; and adjusting charging current to 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, applied to a power adapter, the power adapter being coupled to a mobile terminal through a universal serial bus (USB) interface, a power line in the USB interface being configured by the power adapter to charge the mobile terminal, a data line in the USB interface being configured by the power adapter to conduct a bidirectional communication with the mobile terminal, and the power adapter supporting a common charging mode and a quick charging mode, a charging current of the quick charging mode being greater than that of the common charging mode;
- the method comprising;
conducting by the power adapter the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine to charge the mobile terminal in the quick charging mode, negotiating with the mobile terminal about the charging current of the quick charging mode, and conducting by the power adapter the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine a charging voltage corresponding to the quick charging mode; and adjusting by the power adapter a charging current to the charging current corresponding to the quick charging mode, and adjusting by the power adapter a charging voltage to the charging voltage corresponding to the quick charging mode, so as to charge the mobile terminal; wherein conducting by the power adapter the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine to charge the mobile terminal in the quick charging mode comprises; sending by the power adapter a first instruction to the mobile terminal after the power adapter outputs continuously an output current larger than or equal to a preset current to the mobile terminal for a preset period of time, the first instruction being configured to ask the mobile terminal whether to start the quick charging mode; receiving by the power adapter a replying instruction of the first instruction from the mobile terminal, the replying instruction of the first instruction being configured to indicate that the mobile terminal agrees to start the quick charging mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- the method comprising;
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9. A quick charging method, applied to a mobile terminal, the mobile terminal being coupled to a power adapter through a universal serial bus (USB) interface, a power line in the USB interface being configured to charge the mobile terminal, a data line in the USB interface being configured by the mobile terminal to conduct a bidirectional communication with the power adapter, and the mobile terminal supporting a common charging mode and a quick charging mode, a charging current of the quick charging mode being greater than that of the common charging mode;
- the method comprising;
conducting by the mobile terminal the bidirectional communication with the power adapter through the data line in the USB interface, such that the power adapter determines to charge the mobile terminal in the quick charging mode, negotiating with the power adapter about the charging current of the quick charging mode, and conducting by the mobile terminal the bidirectional communication with the power adapter through the data line in the USB interface, such that the power adapter determines a charging voltage corresponding to the quick charging mode; and receiving by the mobile terminal the charging current corresponding to the quick charging mode and the charging voltage corresponding to the quick charging mode from the power adapter so as to charge a battery in the mobile terminal; wherein, conducting by the mobile terminal the bidirectional communication with the power adapter through the data line in the USB interface such that the power adapter determines to charge the mobile terminal in the quick charging mode comprises; receiving by the mobile terminal a first instruction sent by the power adapter after the mobile terminal receives continuously an output current larger than or equal to a preset current from the power adapter for a preset period of time, the first instruction being configured to ask the mobile terminal whether to start the quick charging mode; and sending by the mobile terminal a replying instruction of the first instruction to the power adapter, the replying instruction of the first instruction being configured to indicate that the mobile terminal agrees to start the quick charging mode. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
- the method comprising;
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17. A power adapter, coupled to a mobile terminal through a universal serial bus (USB) interface, a power line in the USB interface being configured by the power adapter to charge the mobile terminal, a data line in the USB interface being configured by the power adapter to conduct a bidirectional communication with the mobile terminal, and the power adapter supporting a common charging mode and a quick charging mode, in which a charging current of the quick charging mode being greater than that of the common charging mode;
- the power adapter comprising;
a communication circuit, configured to conduct the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine to charge the mobile terminal in the quick charging mode, and to negotiate with the mobile terminal about the charging current of the quick charging mode, the communication circuit being further configured to conduct the bidirectional communication with the mobile terminal through the data line in the USB interface so as to determine a charging voltage corresponding to the quick charging mode; a current adjusting circuit, configured to adjust a charging current to the charging current corresponding to the quick charging mode so as to charge the mobile terminal; and a voltage adjusting circuit, configured to adjust a charging voltage to the charging voltage corresponding to the quick charging mode; wherein the communication circuit is configured to send a first instruction to the mobile terminal after the power adapter outputs continuously an output current larger than or equal to a preset current to the mobile terminal for a preset period of time, the first instruction being configured to ask the mobile terminal whether to start the quick charging mode; and
receive a replying instruction of the first instruction from the mobile terminal, the replying instruction of the first instruction being configured to indicate that the mobile terminal agrees to start the quick charging mode. - View Dependent Claims (18, 19, 20)
- the power adapter comprising;
Specification