Power adapter, terminal, and method for processing impedance anomalies in charging circuit
First Claim
1. A terminal comprising a battery and a charging interface, and the terminal being configured to form a charging loop with a power adapter via the charging interface to charge the battery, wherein, the terminal further comprises:
- a communication component, configured to receive voltage indication information from the power adapter when the power adapter charges the terminal, the voltage indication information indicating an output voltage of the power adapter;
a detection component, configured to detect an input voltage of the power adapter; and
an anomaly processing component, configured to;
determine whether an impedance of the charging loop is abnormal according to a difference between the input voltage and the output voltage,determine a level of the impedance according to the difference,control, according to the level of the impedance, the charging loop to enter into a protected state if the impedance of the charging loop is abnormal, the protected state corresponding to the level of the impedance.
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Accused Products
Abstract
A power adapter, a terminal, and a method for processing an impedance anomaly in a charging loop are provided. The terminal includes a battery and a charging interface, and is configured to form a charging loop with a power adapter via the charging interface to charge the battery. The terminal further includes: a communication component, configured to receive voltage indication information from the power adapter when the power adapter charges the terminal, the voltage indication information indicating an output voltage of the power adapter; a detection component, configured to detect an input voltage of the power adapter; and an anomaly processing component, configured to determine whether an impedance of the charging loop is abnormal according to a difference between the input voltage and the output voltage, and to control the charging loop to enter into a protected state if the impedance of the charging loop is abnormal.
42 Citations
22 Claims
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1. A terminal comprising a battery and a charging interface, and the terminal being configured to form a charging loop with a power adapter via the charging interface to charge the battery, wherein, the terminal further comprises:
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a communication component, configured to receive voltage indication information from the power adapter when the power adapter charges the terminal, the voltage indication information indicating an output voltage of the power adapter; a detection component, configured to detect an input voltage of the power adapter; and an anomaly processing component, configured to; determine whether an impedance of the charging loop is abnormal according to a difference between the input voltage and the output voltage, determine a level of the impedance according to the difference, control, according to the level of the impedance, the charging loop to enter into a protected state if the impedance of the charging loop is abnormal, the protected state corresponding to the level of the impedance. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power adapter comprising a power conversion component and a charging interface, the power conversion component being configured to form a charging loop with a terminal via the charging interface to charge a battery of the terminal, wherein, the power adapter further comprises:
- a detection component, a communication component and an anomaly processing component, wherein
the detection component is configured to detect an output voltage of the power adapter when the power adapter charges the terminal; the communication component is configured to send voltage indication information to the terminal, the voltage indication information indicating the output voltage of the power adapter detected by the detection component, and to receive charging protection indication information from the terminal if the terminal determines that an impedance of the charging loop is abnormal based on a difference between an input voltage of the power adapter and the output voltage of the power adapter; and the anomaly processing component is configured to control the charging loop to enter into a protected state according to an indication of the charging protection indication information the indication of the charging protection indicative information indicating a protection state corresponding to a level of the impedance determined according to the difference. - View Dependent Claims (8, 9, 10, 11)
- a detection component, a communication component and an anomaly processing component, wherein
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12. A method for processing an impedance anomaly of a charging loop, comprising:
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receiving, by a terminal, voltage indication information from a power adapter when the power adapter charges the terminal, the voltage indication information indicating an output voltage of the power adapter; detecting, by the terminal, an input voltage of the power adapter; and determining, by the terminal, whether an impedance of the charging loop is abnormal according to a difference between the input voltage and the output voltage, determining, by the terminal, a level of the impedance according to the difference; and controlling, by the terminal and according to the level of impedance, the charging loop to enter into a protected state corresponding to the level of impedance if the impedance of the charging loop is abnormal. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method for processing an impedance anomaly of a charging loop, comprising:
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detecting, by the power adapter, an output voltage of the power adapter when the power adapter charges the terminal; sending, by the power adapter, voltage indication information to the terminal, the voltage indication information indicating the output voltage of the power adapter detected by the power adapter; receiving, by the power adapter, charging protection indication information from the terminal if the terminal determines that an impedance of the charging loop is abnormal based on a difference between an input voltage of the power adapter and the output voltage of the power adapter; and controlling, by the power adapter, the charging loop to enter into a protected state according to an indication of the charging protection indication information, the indication of the charging protection indicative information indicating a protection state corresponding to a level of the impedance determined according to the difference. - View Dependent Claims (19, 20, 21, 22)
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Specification