Charging method, power adapter, mobile terminal, and charging system
First Claim
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1. A charging method for charging a battery of a mobile terminal via a power adapter, the method comprising:
- obtaining current state parameters of the battery, wherein the current state parameters indicate the current temperature of the battery and the current state of charge of the battery;
determining a mapping relationship from one or more of mapping relationships based on the current temperature of the battery, wherein the one or more of the mapping relationships correspond to the different temperatures of the battery, each of the one or more of the mapping relationships indicates a mapping relationship between the state of charge of the battery and a charging parameter of the battery under a preset temperature of the battery, the charging parameter comprises at least one of a charging voltage from the power adapter, a charging current from the power adapter, and a charging mode of the power adapter, and the charging mode comprises at least one of constant voltage charging stage, constant current charging stage, and pulse charging stage;
determining the current charging parameter of the battery based on the determined mapping relationship and the current state of charge of the battery; and
charging the battery of the mobile terminal according to the current charging parameter.
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Abstract
A charging method, a power adapter, a mobile terminal, and a charging system are provided. The power adapter communicates with the mobile terminal bidirectionally to obtain current state parameters of a battery of the mobile terminal, and adjust a charging parameter of the power adapter in real time based on the current state parameters of the battery.
21 Citations
21 Claims
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1. A charging method for charging a battery of a mobile terminal via a power adapter, the method comprising:
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obtaining current state parameters of the battery, wherein the current state parameters indicate the current temperature of the battery and the current state of charge of the battery; determining a mapping relationship from one or more of mapping relationships based on the current temperature of the battery, wherein the one or more of the mapping relationships correspond to the different temperatures of the battery, each of the one or more of the mapping relationships indicates a mapping relationship between the state of charge of the battery and a charging parameter of the battery under a preset temperature of the battery, the charging parameter comprises at least one of a charging voltage from the power adapter, a charging current from the power adapter, and a charging mode of the power adapter, and the charging mode comprises at least one of constant voltage charging stage, constant current charging stage, and pulse charging stage; determining the current charging parameter of the battery based on the determined mapping relationship and the current state of charge of the battery; and charging the battery of the mobile terminal according to the current charging parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power adapter comprising:
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a charging circuit; and a communication control circuit configured to obtain current state parameters of a battery of the mobile terminal, wherein the current state parameters indicates the current temperature of the battery and the current state of charge of the battery;
the communication control circuit is further configured to determine a mapping relationship from one or more of mapping relationships based on the current temperature, the one or more of the mapping relationships correspond to the different temperatures of the battery, each of the one or more of the mapping relationships indicates a mapping relationship between the state of charge of the battery and a charging parameter of the battery under a preset temperature of the battery, the charging parameter comprises at least one of a charging voltage from the power adapter, a charging current from the power adapter and a charging mode of the power adapter, the charging mode comprises at least one of constant voltage charging stage, constant current charging stage, and pulse charging stage;
the communication control circuit is further configured to determine the current charging parameter based on the determined mapping relationship and the current state of charge of the battery, and charge the battery of the mobile terminal according to the current charging parameter via the charging circuit. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A mobile terminal comprising:
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a charging circuit; and a communication control circuit configured to obtain current state parameters of a battery of the mobile terminal, wherein the current state parameters of the battery indicate the current temperature of the battery and the current state of charge of the battery;
the communication control circuit is further configured to determine a mapping relationship from one or more of mapping relationships based on the current temperature of the battery, the one or more of the mapping relationships correspond to the different temperatures of the battery, each of the one or more of the mapping relationships indicates a mapping relationship between the state of charge of the battery and a charging parameter of the battery, the charging parameter comprises at least one of a charging voltage from the power adapter, a charging current from the power adapter, and a charging mode of the power adapter, the charging mode comprises at least one of constant voltage charging stage, constant current charging stage, and pulse charging stage;
the communication control circuit is further configured to determine the current charging parameter based on the determined mapping relationship and the current state of charge of the battery, and communicate with the power adapter to transmit the current charging parameter to the power adapter, so as to cause the power adapter to charge the battery according to the current charging parameter via the charging circuit. - View Dependent Claims (16, 17, 18, 19, 20)
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21. The mobile terminal of 15, wherein the communication control circuit is further configured to communicate with the power adapter to determine a charging mode, wherein the charging mode comprises a quick charging mode and a normal charging mode, a charging speed of the quick charging mode is greater than that of the normal charging mode;
- the communication control circuit is further configured to communicate with the power adapter to determine a charging voltage and a charging current of the quick charging mode when the quick charging mode is determined to be used, and communicate with the power adapter to transmit the current charging parameter to the power adapter, so as to cause the power adapter to adjust an output voltage and an output current of the power adapter to be the charging voltage and the charging current of the quick charging mode upon receiving the current charging parameter from the mobile terminal, and charge the mobile terminal in the quick charging mode.
Specification