Terminal and battery charging control device and method thereof for realizing overcurrent and/or overvoltage protection
First Claim
1. A battery charging control device, configured to be coupled with a battery and a controller in a terminal, the battery being charged by obtaining direct current from an external power adapter via a communication interface of the terminal, the controller controlling the communication interface of the terminal to switch on or off, wherein, the battery charging control device comprises a battery connector, a main control circuit and a quick charging switch circuit;
- the battery connector is configured to be coupled with an electrode of the battery, the main control circuit is coupled with the battery connector, a first switch control terminal and a second switch control terminal of the main control circuit are coupled with a first controlled terminal and a second controlled terminal of the quick charging switch circuit respectively, both a first communication terminal and a second communication terminal of the main control circuit are coupled with the communication interface, the main control circuit is also coupled with the controller, an input terminal of the quick charging switch circuit is coupled with a power wire of the communication interface, and an output terminal of the quick charging switch circuit is coupled with the battery connector;
when a regular charging is performed on the battery, the main control circuit controls the quick charging switch module circuit to switch off;
when a quick charging is performed on the battery, the main control circuit controls the quick charging switch circuit to switch on, and the direct current is introduced into the quick charging switch circuit via the communication interface, so as to charge the battery via the battery connector;
during the regular charging or the quick charging, the main control circuit performs a data communication with the external power adapter via the communication interface, and obtains a charging voltage and a charging current for the battery;
if the charging voltage is greater than a voltage threshold and/or the charging current is greater than a current threshold, the main control circuit sends a charging switch-off instruction, such that the controller controls the communication interface to switch off;
if the charging voltage is less than or equal to the voltage threshold and the charging current is less than or equal to the current threshold, the main control circuit continues to obtain the charging voltage and the charging current.
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Accused Products
Abstract
The present disclosure relates to the technical field of charging. A terminal and a battery charging control device and method are provided. The battery charging control device including a battery connector, a main control circuit and a quick charging switch circuit is adopted. During the regular charging or the quick charging, the main control circuit performs a data communication with the external power adapter via the communication interface, and obtains a charging voltage and a charging current for the battery; if the charging voltage is greater than a voltage threshold and/or the charging current is greater than a current threshold, the main control circuit sends a charging switch-off instruction, such that the controller controls the communication interface to switch off; if the charging voltage is less than or equal to the voltage threshold and the charging current is less than or equal to the current threshold, the main control circuit continues to obtain the charging voltage and the charging current.
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Citations
19 Claims
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1. A battery charging control device, configured to be coupled with a battery and a controller in a terminal, the battery being charged by obtaining direct current from an external power adapter via a communication interface of the terminal, the controller controlling the communication interface of the terminal to switch on or off, wherein, the battery charging control device comprises a battery connector, a main control circuit and a quick charging switch circuit;
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the battery connector is configured to be coupled with an electrode of the battery, the main control circuit is coupled with the battery connector, a first switch control terminal and a second switch control terminal of the main control circuit are coupled with a first controlled terminal and a second controlled terminal of the quick charging switch circuit respectively, both a first communication terminal and a second communication terminal of the main control circuit are coupled with the communication interface, the main control circuit is also coupled with the controller, an input terminal of the quick charging switch circuit is coupled with a power wire of the communication interface, and an output terminal of the quick charging switch circuit is coupled with the battery connector; when a regular charging is performed on the battery, the main control circuit controls the quick charging switch module circuit to switch off;
when a quick charging is performed on the battery, the main control circuit controls the quick charging switch circuit to switch on, and the direct current is introduced into the quick charging switch circuit via the communication interface, so as to charge the battery via the battery connector;during the regular charging or the quick charging, the main control circuit performs a data communication with the external power adapter via the communication interface, and obtains a charging voltage and a charging current for the battery;
if the charging voltage is greater than a voltage threshold and/or the charging current is greater than a current threshold, the main control circuit sends a charging switch-off instruction, such that the controller controls the communication interface to switch off;
if the charging voltage is less than or equal to the voltage threshold and the charging current is less than or equal to the current threshold, the main control circuit continues to obtain the charging voltage and the charging current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A terminal, comprising:
- a communication interface, a controller and a battery, wherein, the terminal further comprises a battery charging control device;
wherein the battery charging control device is coupled with a battery and a controller in a terminal;
the battery is charged by obtaining direct current from an external power adapter via a communication interface of the terminal, the controller controls the communication interface of the terminal to switch on or off, and the battery charging control device comprises a battery connector, a main control circuit and a quick charging switch circuit;the battery connector is coupled with an electrode of the battery, the main control circuit is coupled with the battery connector, a first switch control terminal and a second switch control terminal of the main control circuit are coupled with a first controlled terminal and a second controlled terminal of the quick charging switch circuit respectively, both a first communication terminal and a second communication terminal of the main control circuit are coupled with the communication interface, the main control circuit is also coupled with the controller, an input terminal of the quick charging switch circuit is coupled with a power wire of the communication interface, and an output terminal of the quick charging switch circuit is coupled with the battery connector; when a regular charging is performed on the battery, the main control circuit controls the quick charging switch circuit to switch off;
when a quick charging is performed on the battery, the main control circuit controls the quick charging switch circuit to switch on, and the direct current is introduced into the quick charging switch circuit via the communication interface, so as to charge the battery via the battery connector;during the regular charging or the quick charging, the main control circuit performs a data communication with the external power adapter via the communication interface, and obtains a charging voltage and a charging current for the battery;
if the charging voltage is greater than a voltage threshold and/or the charging current is greater than a current threshold, the main control circuit sends a charging switch-off instruction, such that the controller controls the communication interface to switch off;
if the charging voltage is less than or equal to the voltage threshold and the charging current is less than or equal to the current threshold, the main control circuit continues to obtain the charging voltage and the charging current.
- a communication interface, a controller and a battery, wherein, the terminal further comprises a battery charging control device;
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11. A battery charging control method, based on a battery charging control device, wherein, the battery charging control device is coupled with a battery and a controller in a terminal;
- the battery is charged by obtaining direct current from an external power adapter via a communication interface of the terminal, the controller controls the communication interface of the terminal to switch on or off, and the battery charging control device comprises a battery connector, a main control circuit and a quick charging switch circuit;
the battery connector is coupled with an electrode of the battery, the main control circuit is coupled with the battery connector, a first switch control terminal and a second switch control terminal of the main control circuit are coupled with a first controlled terminal and a second controlled terminal of the quick charging switch circuit respectively, both a first communication terminal and a second communication terminal of the main control circuit are coupled with the communication interface, the main control circuit is also coupled with the controller, an input terminal of the quick charging switch circuit is coupled with a power wire of the communication interface, and an output terminal of the quick charging switch circuit is coupled with the battery connector; when a regular charging is performed on the battery, the main control circuit controls the quick charging switch circuit to switch off;
when a quick charging is performed on the battery, the main control circuit controls the quick charging switch circuit to switch on, and the direct current is introduced into the quick charging switch circuit via the communication interface, so as to charge the battery via the battery connector;
the battery charging control method comprises acts of;performing by the main control circuit a data communication with the external power adapter, and obtaining a charging voltage and a charging current for the battery; determining by the main control circuit whether the charging voltage is greater than a voltage threshold and determining by the main control circuit whether the charging current is greater than a current threshold;
if the charging voltage is greater than the voltage threshold and/or the charging current is greater than the current threshold, sending by the main control circuit a charging switch-off instruction, such that the controller controls the communication interface to switch off; andif the charging voltage is less than or equal to the voltage threshold and the charging current is less than or equal to the current threshold, returning to the act of performing by the main control circuit the data communication with the external power adapter and obtaining the charging voltage and the charging current for the battery. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
- the battery is charged by obtaining direct current from an external power adapter via a communication interface of the terminal, the controller controls the communication interface of the terminal to switch on or off, and the battery charging control device comprises a battery connector, a main control circuit and a quick charging switch circuit;
Specification