Power adaptor, terminal and charging system
First Claim
1. A power adaptor, comprising a power conversion unit and a charging interface, the charging interface comprising a power line, the power conversion unit being configured to charge a terminal via the power line, wherein, the power adaptor further comprises a communication unit, the charging interface further comprises a data line, and the communication unit is configured to communicate with the terminal via the data line when the power adaptor is coupled to the terminal;
- during a procedure of outputting a charging current to the terminal by the power adaptor, the communication unit is configured to receive a first message from the terminal via the data line, the first message indicates a value of a current battery voltage of the terminal;
during the procedure of outputting the charging current to the terminal by the power adaptor, the communication unit is configured to send a second message to the terminal via the data line, the second message indicates a current value or a voltage value output by the power adaptor; and
the communication unit is further configured to receive a third message from the terminal via the data line, the third message indicates a current value or a voltage value received from the power adaptor by the terminal, to determine whether there is a fault in coupling between the power adaptor and the terminal; and
the power adaptor is configured to adjust the charging current according to the value of the current battery voltage of the terminal during the procedure of outputting the charging current to the terminal by the power adaptor.
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Accused Products
Abstract
A power adaptor (100) includes a power conversion unit (110) and a power line (121). The power conversion unit (110) charges a terminal (200) via the power line (121). The power adaptor (100) further includes a communication unit (130) and a data line (122). When the power adaptor (100) is coupled to the terminal (200), the communication unit (130) communicates with the terminal (200) via the data line (122). The power adaptor (100) charges the terminal (200) still using the power line (121). Furthermore, when the power adaptor (100) is coupled to the terminal (200), the power adaptor (100) communicates with the terminal via the data line (122). Compared with the method of data and power time-division multiplexing the power line, the heating phenomenon of the power line caused by an excessively high load of a signal isolation unit can be effectively avoided.
157 Citations
16 Claims
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1. A power adaptor, comprising a power conversion unit and a charging interface, the charging interface comprising a power line, the power conversion unit being configured to charge a terminal via the power line, wherein, the power adaptor further comprises a communication unit, the charging interface further comprises a data line, and the communication unit is configured to communicate with the terminal via the data line when the power adaptor is coupled to the terminal;
- during a procedure of outputting a charging current to the terminal by the power adaptor, the communication unit is configured to receive a first message from the terminal via the data line, the first message indicates a value of a current battery voltage of the terminal;
during the procedure of outputting the charging current to the terminal by the power adaptor, the communication unit is configured to send a second message to the terminal via the data line, the second message indicates a current value or a voltage value output by the power adaptor; and
the communication unit is further configured to receive a third message from the terminal via the data line, the third message indicates a current value or a voltage value received from the power adaptor by the terminal, to determine whether there is a fault in coupling between the power adaptor and the terminal; and
the power adaptor is configured to adjust the charging current according to the value of the current battery voltage of the terminal during the procedure of outputting the charging current to the terminal by the power adaptor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- during a procedure of outputting a charging current to the terminal by the power adaptor, the communication unit is configured to receive a first message from the terminal via the data line, the first message indicates a value of a current battery voltage of the terminal;
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9. A terminal, comprising a battery and a charging interface, the charging interface comprising a power line, the terminal being configured to introduce a charging current from a power adaptor via the power line to charge the battery, wherein, the terminal further comprises a communication unit, the charging interface further comprises a data line, and the communication unit is configured to communicate with the power adaptor via the data line when the terminal is coupled to the power adapter;
- and during a procedure of receiving a charging current from the power adaptor by the terminal, the communication unit is configured to send a first message to the power adaptor via the data line, the first message indicates a value of a current battery voltage of the terminal;
during the procedure of receiving the charging current from the power adaptor by the terminal, the communication unit is configured to receive a second message from the power adaptor via the data line, the second message indicates a current value or a voltage value output by the power adaptor; and
the communication unit is further configured to send a third message to the power adaptor via the data line, the third message indicates a current value or a voltage value received from the power adaptor by the terminal, to determine whether there is a fault in coupling between the terminal and the power adaptor;
such that the power adaptor is configured to adjust the charging current according to the value of the current battery voltage of the terminal during the procedure of outputting the charging current to the terminal by the power adaptor. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- and during a procedure of receiving a charging current from the power adaptor by the terminal, the communication unit is configured to send a first message to the power adaptor via the data line, the first message indicates a value of a current battery voltage of the terminal;
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16. A charging system, comprising a power adaptor and a terminal, wherein the power adaptor, comprises a first power conversion unit, a first charging interface comprising a first power line, the first power conversion unit being configured to charge the terminal via the first power line, and a first communication unit, the first charging interface further comprises a first data line, and the first communication unit is configured to communicate with the terminal via the first data line when the power adaptor is coupled to the terminal;
- the terminal comprises a battery, a second charging interface comprising a second power line, the terminal being configured to introduce a charging current from the power adaptor via the second power line to charge the battery, and a second communication unit, the second charging interface further comprises a second data line, and the second communication unit is configured to communicate with the power adaptor via the second data line when the terminal is coupled to the power adapter; and
wherein;
during a procedure of outputting a charging current to the terminal by the power adaptor, the first communication unit is configured to receive a first message from the terminal via the first data line, the first message indicates a value of a current battery voltage of the terminal;
during the procedure of outputting the charging current to the terminal by the power adaptor, the first communication unit is configured to send a second message to the terminal via the data line, to receive a third message from the terminal via the data line, and to determine whether there is a fault in coupling between the power adaptor and the terminal;
the second message indicates a current value or a voltage value output by the power adaptor, and the third message indicates a current value or a voltage value received from the power adaptor by the terminal;
or during the procedure of outputting the charging current to the terminal by the power adaptor, the second communication unit is configured to receive a second message from the power adaptor via the data line, to send a third message to the power adaptor via the data line, and to determine whether there is a fault in coupling between the terminal and the power adaptor;
the second message indicates a current value or a voltage value output by the power adaptor; and
the third message indicates a current value or a voltage value received from the power adaptor by the terminal; and
the power adaptor is configured to adjust the charging current according to the value of the current battery voltage of the terminal during the procedure of outputting the charging current to the terminal by the power adaptor.
- the terminal comprises a battery, a second charging interface comprising a second power line, the terminal being configured to introduce a charging current from the power adaptor via the second power line to charge the battery, and a second communication unit, the second charging interface further comprises a second data line, and the second communication unit is configured to communicate with the power adaptor via the second data line when the terminal is coupled to the power adapter; and
Specification