Charging Method, Alternating Current Adaptor, Charging Management Device and Terminal

• US 20160336779A1
• Filed: 05/29/2014
• Published: 11/17/2016
• Est. Priority Date: 01/21/2014
• Status: Abandoned Application

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: HU, Dongping, WANG, Jihong
• Application Number:
  US15/111,484
• Publication Number:
  US 20160336779A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A charging method, an alternating current adapter, a charging management device and a terminal are disclosed. The alternating current adapter includes a micro-USB connector used to connect to an external terminal and charge the external terminal; a conversion module used to convert the accessed alternating current into the direct current to be output to the micro-USB connector as an output and boost a voltage to a designated value after receiving a voltage boosting instruction; a changeover switch used to connect two differential signal lines of the micro-USB connector to a resistor by normal default, and detects whether the two differential signal lines are in a short-circuit state when the micro-USB connector is connected to the external terminal, if so, trigger a control module and disconnect the two differential signal lines from the resistor; and the control module used to send the voltage boosting instruction to the conversion module after triggered.

Claims

1. An alternating current adapter, comprising:

a micro-Universal Serial Bus (USB) connector, a conversion module, a changeover switch and a control module, wherein;

the micro-USB connector is configured to connect to an external terminal and charge the external terminal;

the conversion module, connecting to a power supply pin of the micro-USB connector, is configured to convert an accessed alternating current to a direct current, output the direct current to the micro-USB connector as an output, and boost a voltage to a designated value after receiving a voltage boosting instruction from the control module;

the changeover switch is configured to connect two differential signal lines of the micro-USB connector to a resistor under a normal default situation, and when the micro-USB connector is connected to the external terminal, detect whether the two differential signal lines of the micro-USB connector are in a short-circuit state, and if the two differential signal lines of the micro-USB connector are in the short-circuit state, trigger the control module and disconnect the two differential signal lines of the micro-USB connector from the resistor; and

the control module is configured to send the voltage boosting instruction to the conversion module after the control module is triggered.

2. The alternating current adapter according to claim 1, wherein:

the changeover switch is further configured to, if the external terminal is detected to disconnect from the micro-USB connector or the external terminal is detected to complete the charging, notify the control module and connect the two differential signal lines of the micro-USB connector to the resistor;

the control module is further configured to, after receiving a notification, send a voltage recovery instruction to the conversion module; and

the conversion module is further configured to, adjust the voltage to a default value after receiving the voltage recovery instruction.

3. The alternating current adapter according to claim 1, wherein:

a value of the resistor is 0 Ohm or less than 100 Ohms.

4. A charging method, applied to an alternating current adapter according to claim 1, comprising:

accessing, by the alternating current adapter, to a terminal;

detecting, by the alternating current adapter, whether the terminal supports quick charging;

if the terminal does not support the quick charging, charging the terminal with an default output voltage;

if the terminal support the quick charging, boosting an output voltage to a designated value to charge the terminal.

5. The charging method according to claim 4, wherein the step of detecting, by the alternating current adapter, whether the terminal supports quick charging comprises:

detecting, whether two differential signal lines of a micro-Universal Serial Bus (USB) connector connected to the terminal are in a short-circuit state;

if the two differential signal lines of the micro-USB connector are in the short-circuit state, determining that the terminal supports the quick charging;

otherwise, determining that the terminal does not support the quick charging.

12. A charging method, applied to an alternating current adapter according to claim 2, comprising:

accessing, by the alternating current adapter, to a terminal;

detecting, by the alternating current adapter, whether the terminal supports quick charging;

if the terminal does not support the quick charging, charging the terminal with an default output voltage;

if the terminal support the quick charging, boosting an output voltage to a designated value to charge the terminal.

13. A charging method, applied to an alternating current adapter according to claim 3, comprising:

accessing, by the alternating current adapter, to a terminal;

detecting, by the alternating current adapter, whether the terminal supports quick charging;

if the terminal does not support the quick charging, charging the terminal with an default output voltage;

if the terminal support the quick charging, boosting an output voltage to a designated value to charge the terminal.

14. The alternating current adapter according to claim 2, wherein:

a value of the resistor is 0 Ohm or less than 100 Ohms.

19. A computer storage medium, comprising a set of instructions, when the instructions are executed, at least one processor being triggered to execute a charging method according to claim 4.

6. A charging management device, applied to a terminal, comprising a micro-Universal Serial Bus (USB) connector, a changeover switch and a control module, wherein:

the micro-USB connector is configured to connect to a charging device and charge a terminal;

the changeover switch is configured to connect two differential signal lines of the micro-USB connector to the control module under a default situation, and after receiving a switching signal form the control module, connect the two differential signal lines of the micro-USB connector to a resistor; and

the control module is configured to detect whether the charging device connected to the micro-USB connector is an alternating current adapter;

if the charging device is the alternating current adapter, output the switching signal to the changeover switch.

7. The charging management device according to claim 6, wherein:

the control module is further configured to, if the terminal is detected to complete the charging or the micro-USB connector is detected to disconnect from the charging device, notify the changeover switch; and

the changeover switch is further configured to, after receiving a notification, connect the two differential signal lines of the micro-USB connector to the control module.

8. The charging management device according to claim 6, wherein,

a value of the resistor is 0 Ohm or less than 100 Ohms.

9. A terminal, comprising a charging management device according to claim 6.

10. A charging method, applied to a charging management device according to claim 6, comprising:

detecting, by a charging management device, the type of an accessed device; and

if the accessed device is detected to be an alternating current adapter, sending, by the charging management device, a quick charging identifier to the alternating current adapter.

11. The charging method according to claim 10, wherein the step of sending, by the charging management device, a quick charging identifier to the alternating current adapter comprises:

connecting, by the charging management device, two differential signal lines of a micro-Universal Serial Bus (USB) connector connected to the alternating current adapter to a resistor;

wherein, a value of the resistor is 0 Ohm or less than 100 Ohms.

15. A terminal, comprising a charging management device according to claim 7.

16. A terminal, comprising a charging management device according to claim 8.

17. A charging method, applied to a charging management device according to claim 7, comprising:

detecting, by a charging management device, the type of an accessed device; and

if the accessed device is detected to be an alternating current adapter, sending, by the charging management device, a quick charging identifier to the alternating current adapter.

18. A charging method, applied to a charging management device according to claim 8, comprising:

detecting, by a charging management device, the type of an accessed device; and

if the accessed device is detected to be an alternating current adapter, sending, by the charging management device, a quick charging identifier to the alternating current adapter.

20. A computer storage medium, comprising a set of instructions, when the instructions are executed, at least one processor being triggered to execute a charging method according to claim 10.