WO2016188301A1 - 充电检测电路、移动终端及充电检测系统 - Google Patents

充电检测电路、移动终端及充电检测系统 Download PDF

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Publication number
WO2016188301A1
WO2016188301A1 PCT/CN2016/080633 CN2016080633W WO2016188301A1 WO 2016188301 A1 WO2016188301 A1 WO 2016188301A1 CN 2016080633 W CN2016080633 W CN 2016080633W WO 2016188301 A1 WO2016188301 A1 WO 2016188301A1
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WIPO (PCT)
Prior art keywords
switch
charger
processor
detection
charging
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PCT/CN2016/080633
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English (en)
French (fr)
Inventor
刘定球
刘国红
苏远腾
邵超杰
魏华兵
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2016188301A1 publication Critical patent/WO2016188301A1/zh
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries

Definitions

  • the present disclosure relates to the field of electronic devices, and in particular, to a charging detection circuit, a mobile terminal, and a charging detection system.
  • the charging scheme of related technologies has a slower charging speed. For example, charging a 3200 mAh battery with a 5V, 1.6A solution requires at least 3 hours to complete, which is for consumers. In terms of it, it is unacceptable. Therefore, increasing the speed of charging can effectively improve the user experience.
  • the fast charging technologies adopted by mobile terminals in the related art are mainly classified into two types, one is that a charger with a larger power is used to charge a large current of the mobile phone with a voltage of 5 V; and the other is a high voltage for charging.
  • the charger is backward compatible with the output voltage of 5V, and can charge 5V to a mobile phone that does not support high-voltage fast charging; and if a higher voltage charging is required, the charger terminal needs to be After the mobile terminal performs the handshake communication successfully, the charger will output a voltage of 9V or higher for fast charging.
  • the detection circuit is integrated on the charging circuit, so that the charging IC can only support the highest 9V high-voltage charging. Therefore, the high-voltage charging scheme in the related art does not satisfactorily meet the needs of users, and it is required to provide a technical solution that can be increased to a higher charging voltage.
  • a charging detection circuit including: a detecting module, a first switch, a processor, and a low dropout linear regulator LDO power supply;
  • the detecting module is connected to a charger, and the detecting module generates a check according to the charger Detecting a signal, detecting a type of the charger, and generating a type identification signal; the detecting module is further connected to the processor, and configured to output the type identification signal to the processor;
  • the first switch includes a first end, a second end, and a control end, and the first end of the first switch is connected to the charger for accessing a detection signal generated by the charger, a second end of the first switch is connected to the LDO power supply, a second end of the first switch is an output switching circuit, and a control end of the first switch is connected to the processor, and the processor is controlled by the processor Switching the output switching circuit, so that the second end of the first switch generates different level combinations according to the detection signal, and outputs the same to the LDO power supply;
  • the processor is connected to the charger, and the processor performs data exchange with the charger according to the type identification signal, or performs switching control on the output switching circuit;
  • the LDO power supply is coupled to the charger for generating a feedback signal according to the level combination and outputting to the charger to cause the charger to determine a charging voltage to be output.
  • the disclosure also provides a mobile terminal, including:
  • the connector is connected to the charger, and the detection signal generated by the charger is connected to the charging detection circuit, and the feedback signal generated by the charging detection circuit is output to the charger;
  • the charge detection circuit is connected to the connector such that the charge detection circuit is connected to the charger via the connector, and the charge detection circuit is configured to generate the feedback signal according to the detection signal.
  • the present disclosure also provides a charging detection system, including:
  • the mobile terminal including a connector and a charging detection circuit as described above;
  • the charger is configured to generate a detection signal, and is further configured to determine, according to the feedback signal generated by the charging detection circuit, a charging voltage that needs to be output;
  • the connector is connected to the charger, and the detection signal generated by the charger is connected to the charging detection circuit, and the feedback signal generated by the charging detection circuit is output to the charger;
  • the charge detecting circuit is connected to the connector to cause the charge detecting circuit to pass through the connection
  • the connector is connected to the charger, and the charging detection circuit is configured to generate the feedback signal according to the detection signal.
  • the embodiment of the present disclosure adopts the above-mentioned circuit arrangement, generates a type identification signal by detecting the type of the charger, and outputs the type identification signal to the processor; the processor performs control processing according to the type identification signal to determine that the charger needs to output charging. Voltage; and, the embodiment of the present disclosure realizes that the charging detection circuit is set independently of the charging circuit, so that the charging detection circuit and the charging circuit do not affect each other, and the flexibility of the circuit design is expanded, and the charging circuit can be designed to be outputted. Higher charging voltage to meet the needs of users and improve the user experience.
  • FIG. 1 is a block diagram showing the structure of a charge detecting circuit in accordance with some embodiments of the present disclosure
  • FIG. 2 is a schematic structural diagram of a charge detecting circuit according to other embodiments of the present disclosure.
  • FIG. 3 is a schematic structural diagram of a mobile terminal according to some embodiments of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a mobile terminal according to other embodiments of the present disclosure.
  • FIG. 5 is a block diagram showing the structure of a charge detection system in accordance with some embodiments of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a charge detecting system according to still other embodiments of the present disclosure.
  • FIG. 1 is a block diagram showing a structure of a charge detecting circuit 110 according to some embodiments of the present disclosure.
  • the charge detecting circuit 110 includes:
  • Detection module 111 first switch 112, processor 113 and low dropout linear regulator LDO power supply 114;
  • the detecting module 111 is connected to the charger 200.
  • the detecting module 111 detects the type of the charger 200 according to the detection signal generated by the charger 200, and generates a type identification signal.
  • the detecting module 111 is further connected to the processor 113 for identifying the type.
  • the signal is output to the processor 113; specifically, the detection module 111 can be an integrated IC.
  • the detection module 111 receives the detection signal, the BC1.2 detection can be performed, thereby determining that the charger 200 connected to the mobile terminal 100 is a brigade. Charge, or USB device.
  • the mobile terminal 100 can be a mobile phone, a tablet computer, an MP3, an MP4, or a notebook computer.
  • the first switch 112 includes a first end, a second end, and a control end, and the first end of the first switch 112 is connected to the charger 113 for accessing the detection signal generated by the charger 200, and the first switch 112 The second end is connected to the LDO power supply 114.
  • the second end of the first switch 112 is an output switching circuit.
  • the control end of the first switch 112 is connected to the processor 113.
  • the processor 113 controls the switching of the output switching circuit to make the first switch 112.
  • the second end of the first switch 112 is a four-way single-pole double-throw switch, that is, the second end of the first switch 112 is four-way. Output, the processor 113 can switch the output switching path of the first switch 112 by controlling the blade switching of the first switch 112.
  • the processor 113 is connected to the charger 200.
  • the processor exchanges data with the charger according to the type identification signal, or performs switching control on the output switching circuit.
  • the processor 113 can be centrally processed in the mobile terminal 100.
  • the processor 113 can control the switching timing of the output switching circuit of the first switch 112 according to the level combination requirement of the high voltage communication protocol to output different level combinations.
  • the LDO power source 114 is connected to the charger 200 for generating a feedback signal according to the level combination, and outputting to the charger 200, so that the charger 200 determines the charging voltage that needs to be output, and achieves matching of the charging voltage.
  • the charge detection circuit 110 further includes:
  • the second switch 115 includes a first end, a second end, a third end, and a control end;
  • the first end of the second switch 115 is connected to the charger 200 for accessing the detection signal generated by the charger 200; the second end of the second switch 115 is connected to the processor 113, so that the processor 113 passes the second
  • the switch 115 is connected to the charger 200; the third end of the second switch 115 is connected to the first end of the first switch 112, so that the first end of the first switch 112 is connected to the charger 200 via the second switch 115;
  • the control end of the switch 115 is connected to the processor 113.
  • the processor 113 controls the second end of the second switch 115 to be connected to the processor 113 according to the type identification signal, so that the processor 113 exchanges data with the charger 200, or controls the first
  • the third end of the second switch 115 is connected to the first end of the first switch 112, and outputs a detection signal to the first end of the first switch 112.
  • the second switch 115 is an alternate selection switch, and the selection switching of the second switch 115 can be controlled by the processor 113.
  • the detecting module 111 includes a first end, a second end, and an output end for outputting the type identification signal.
  • the first end of the detecting module 111 is connected to the charger 200 for accessing the detection signal generated by the charger 200.
  • the second end of the detecting module 111 is connected to the first end of the second switch 115, so that the first end of the second switch 115 is connected to the charger 200 via the detecting module 111; the output end of the detecting module 111, and the processor 200 A connection for outputting a type identification signal to the processor 200.
  • the first end of the detecting module 111 is the access end of the charging detecting circuit 110 that accesses the detection signal.
  • the initial state of the second switch 115 is that the second end of the second switch 115 is connected to the processor 113.
  • the charging detection circuit 110 of the present embodiment will be further described below in conjunction with the working principle:
  • the detection signal is output to the detection module 111, and the detection module 111 performs BC1.2 detection to generate a type identification signal, and outputs the signal to the processor 113; when the recognition result is:
  • the processor 113 controls the second end of the second switch 115 to still be connected to the processor 113, that is, the third end of the second switch is disconnected from the first end of the first switch. At this time, the number between the processor 113 and the USB device is counted.
  • the USB device needs to output the charging voltage to be 5V; when the recognition result is that the mobile terminal 100 is connected to the travel charger, the processor 113 controls the third end of the second switch 115 and the first end of the first switch 112. The end connection, that is, the connection between the second end of the second switch 115 and the processor 113 is disconnected. At this time, the detection signal is output to the first switch 112 via the second switch 115, and the processor 113 switches the output of the first switch 112. The circuit is controlled such that the second end of the first switch 112 can output a different level combination. When the LDO power supply 114 receives a level combination, the LDO power supply 114 generates a feedback signal.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the embodiment of the present disclosure adopts the above-mentioned circuit arrangement, generates a type identification signal by detecting the type of the charger, and outputs the type identification signal to the processor 113; the processor 113 performs control processing according to the type identification signal to determine the charger 200.
  • the charging voltage needs to be output; and the embodiment of the present disclosure realizes that the charging detection circuit 110 is set independently of the charging circuit, so that the charging detection circuit 110 and the charging circuit do not affect each other, which expands the flexibility of the circuit design, and thus can be charged.
  • the circuit is designed to output a higher charging voltage to meet the needs of users and improve the user experience.
  • FIG. 2 is a block diagram showing a structure of a charge detecting circuit 110 according to some embodiments of the present disclosure.
  • the charge detecting circuit 110 includes:
  • Detection module 111 first switch 112, processor 113 and low dropout linear regulator LDO power supply 114;
  • the detecting module 111 is connected to the charger 200.
  • the detecting module 111 detects the type of the charger 200 according to the detection signal generated by the charger 200, and generates a type identification signal.
  • the detecting module 111 is further connected to the processor 113 for identifying the type.
  • the signal is output to the processor 113; specifically, the detection module 111 can be an integrated IC.
  • the detection module 111 receives the detection signal, the BC1.2 detection can be performed, thereby determining that the charger 200 connected to the mobile terminal 100 is a brigade. Charge, or USB device.
  • the mobile terminal 100 can be a mobile phone, a tablet computer, an MP3, an MP4, or a notebook computer.
  • the first switch 112 includes a first end, a second end, and a control end, and the first end of the first switch 112 is connected to the charger 113 for accessing the detection signal generated by the charger 200, and the first switch 112 The second end is connected to the LDO power supply 114.
  • the second end of the first switch 112 is an output switching circuit.
  • the control end of the first switch 112 is connected to the processor 113.
  • the processor 113 controls the switching of the output switching circuit to make the first switch 112.
  • the second end of the first switch 112 is a four-way single-pole double-throw switch, that is, the second end of the first switch 112 is four-way. Output, the processor 113 can switch the output switching path of the first switch 112 by controlling the blade switching of the first switch 112.
  • the processor 113 is connected to the charger 200.
  • the processor exchanges data with the charger according to the type identification signal, or performs switching control on the output switching circuit.
  • the processor 113 can be centrally processed in the mobile terminal 100.
  • the processor 113 can control the switching timing of the output switching circuit of the first switch 112 according to the level combination requirement of the high voltage communication protocol to output different level combinations.
  • the LDO power source 114 is connected to the charger 200 for generating a feedback signal according to the level combination, and outputting to the charger 200, so that the charger 200 determines the charging voltage that needs to be output, and achieves matching of the charging voltage.
  • the charge detection circuit 110 further includes:
  • the second switch 115 includes a first end, a second end, a third end, and a control end;
  • the first end of the second switch 115 is connected to the charger 200 for accessing the detection signal generated by the charger 200; the second end of the second switch 115 is connected to the processor 113, so that the processor 113 passes the second
  • the switch 115 is connected to the charger 200; the third end of the second switch 115 is connected to the first end of the first switch 112, so that the first end of the first switch 112 is connected to the charger 200 via the second switch 115;
  • the control end of the switch 115 is connected to the processor 113.
  • the processor 113 controls the second end of the second switch 115 to be connected to the processor 113 according to the type identification signal, so that the processor 113 exchanges data with the charger 200, or controls the first
  • the third end of the second switch 115 is connected to the first end of the first switch 112, and outputs a detection signal to the first end of the first switch 112.
  • the second switch 115 is an alternate selection switch, and the selection switching of the second switch 115 can be controlled by the processor 113.
  • the detecting module 111 includes a first end and an output end for outputting a type identification signal;
  • the first end of the test module 111 is connected to the processor 113, so that the detection module 111 is connected to the charger 200 via the processor 113.
  • the output end of the detection module 111 is connected to the processor 113 for outputting the type identification signal to the processor. 113.
  • the detection signal generated by the charger 200 needs to pass through the second switch 115 and the processor 113 to reach the detection module for BC1.2 detection. Therefore, the initial state of the second switch 115 is the second switch 115.
  • the two ends are connected to the processor 113.
  • the first end of the second switch 115 is the access end of the charging detection circuit 110 that accesses the detection signal.
  • the detecting module 111 and the processor 113 constitute a controller 116; specifically, the detecting module 111 is integrated on the processor 113 to make the circuit structure in the embodiment simpler.
  • the charging detection circuit 110 of the present embodiment will be further described below in conjunction with the working principle:
  • the detection signal is output to the detection module 111, and the detection module 111 performs BC1.2 detection to generate a type identification signal, and outputs the signal to the processor 113; when the recognition result is:
  • the processor 113 controls the second end of the second switch 115 to still be connected to the processor 113, that is, the third end of the second switch is disconnected from the first end of the first switch.
  • the processor 113 performs data exchange with the USB device, and determines that the USB device needs to output the charging voltage to be 5V; when the recognition result is: when the mobile terminal 100 is connected to the travel charger, the processor 113 controls the second switch.
  • the third end of the first switch 112 is connected to the first end of the first switch 112, that is, the second end of the second switch 115 is disconnected from the processor 113. At this time, the detection signal is output to the first switch 112 via the second switch 115.
  • the processor 113 controls the output switching circuit of the first switch 112 so that the second end of the first switch 112 can output different level combinations.
  • the LDO power supply 114 receives a level combination, the LDO power supply 114 generates a feedback signal.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • Embodiments of the present disclosure adopt the above-described circuit arrangement to detect the class of the charger through the detection module Type, generating a type identification signal, and outputting to the processor 113; the processor 113 performs control processing according to the type identification signal to determine that the charger 200 needs to output a charging voltage; and, the embodiment of the present disclosure implements the charging detection circuit 110 is set independently of the charging circuit, so that the charging detection circuit 110 and the charging circuit do not affect each other, and the flexibility of the circuit design is expanded, and the charging circuit can be designed to output a higher charging voltage to meet the needs of the user. User experience.
  • FIG. 3 and FIG. 4 are schematic structural diagrams of a mobile terminal 100 according to some embodiments and other embodiments of the present disclosure.
  • the mobile terminal 100 includes:
  • the connector 120 and the charging detection circuit 110 are connected to each other.
  • the connector 120 is connected to the charger 200, and the detection signal generated by the charger 200 is connected to the charging detection circuit 110, and the feedback signal generated by the charging detection circuit 110 is output to the charger 200;
  • the charge detecting circuit 110 is connected to the connector 120 such that the charge detecting circuit 110 is connected to the charger 200 via the connector 120, and the charge detecting circuit 110 is configured to generate a feedback signal based on the detection signal.
  • the charging detection circuit 110 includes
  • Detection module 111 first switch 112, processor 113 and low dropout linear regulator LDO power supply 114;
  • the detecting module 111 is connected to the charger 200.
  • the detecting module 111 detects the type of the charger 200 according to the detection signal generated by the charger 200, and generates a type identification signal.
  • the detecting module 111 is further connected to the processor 113 for identifying the type.
  • the signal is output to the processor 113; specifically, the detection module 111 can be an integrated IC.
  • the detection module 111 receives the detection signal, the BC1.2 detection can be performed, thereby determining that the charger 200 connected to the mobile terminal 100 is a brigade. Charge, or USB device.
  • the mobile terminal 100 can be a mobile phone, a tablet computer, an MP3, an MP4, or a notebook computer.
  • the first switch 112 includes a first end, a second end, and a control end, and the first end of the first switch 112 is connected to the charger 113 for accessing the detection signal generated by the charger 200, and the first switch 112
  • the second end is connected to the LDO power supply 114.
  • the second end of the first switch 112 is an output switching circuit.
  • the control end of the first switch 112 is connected to the processor 113.
  • the processor 113 controls the switching of the output switching circuit to make the first switch 112.
  • the second end generates a different level combination according to the detection signal, and outputs to the LDO power supply 114.
  • the first switch 112 is a two-way single-pole double-throw switch, that is, the first The second end of the switch 112 is a four-way output, and the processor 113 can switch the output switching path of the first switch 112 by controlling the blade switching of the first switch 112.
  • the processor 113 is connected to the charger 200.
  • the processor exchanges data with the charger according to the type identification signal, or performs switching control on the output switching circuit.
  • the processor 113 can be centrally processed in the mobile terminal 100.
  • the processor 113 can control the switching timing of the output switching circuit of the first switch 112 according to the level combination requirement of the high voltage communication protocol to output different level combinations.
  • the LDO power source 114 is connected to the charger 200 for generating a feedback signal according to the level combination, and outputting to the charger 200, so that the charger 200 determines the charging voltage that needs to be output, and achieves matching of the charging voltage.
  • the charge detection circuit 110 further includes:
  • the second switch 115 includes a first end, a second end, a third end, and a control end;
  • the first end of the second switch 115 is connected to the charger 200 for accessing the detection signal generated by the charger 200; the second end of the second switch 115 is connected to the processor 113, so that the processor 113 passes the second
  • the switch 115 is connected to the charger 200; the third end of the second switch 115 is connected to the first end of the first switch 112, so that the first end of the first switch 112 is connected to the charger 200 via the second switch 115;
  • the control end of the switch 115 is connected to the processor 113.
  • the processor 113 controls the second end of the second switch 115 to be connected to the processor 113 according to the type identification signal, so that the processor 113 exchanges data with the charger 200, or controls the first
  • the third end of the second switch 115 is connected to the first end of the first switch 112, and outputs a detection signal to the first end of the first switch 112.
  • the second switch 115 is an alternate selection switch, and the selection switching of the second switch 115 can be controlled by the processor 113.
  • the detecting module 111 may be configured to include a first end, a second end, and an output end for outputting the type identification signal; the first end of the detecting module 111 Connected to the charger 200 for accessing the detection signal generated by the charger 200; the second end of the detection module 111 is connected to the first end of the second switch 115, so that the first end of the second switch 115 is detected.
  • the module 111 is connected to the charger 200; the output of the detecting module 111 is connected to the processor 200 for outputting a type identification signal to the processor 200.
  • the first end of the detecting module 111 is the access end of the charging detecting circuit 110 to access the detecting signal, that is, the first end of the detecting module 111 in the charging detecting circuit 110 is connected to the connector 120.
  • the initial state of the second switch 115 is that the second end of the second switch 115 is connected to the processor 113.
  • the detecting module 111 may be configured to include a first end and an output for outputting the type identification signal; the first end of the detecting module 111, and the processor 113 is connected such that the detection module 111 is connected to the charger 200 via the processor 113; the output of the detection module 111 is connected to the processor 113 for outputting the type identification signal to the processor 113.
  • the detection signal generated by the charger 200 needs to pass through the second switch 115 and the processor 113 to reach the detection module for BC1.2 detection. Therefore, the initial state of the second switch 115 is the second switch 115.
  • the two ends are connected to the processor 113.
  • the first end of the second switch 115 is the access end of the charging detection circuit 110 that accesses the detection signal, that is, the first end of the second switch 115 in the charging detection circuit 110 is connected to the connector 120.
  • the detecting module 111 and the processor 113 constitute a controller 116; specifically, the detecting module 111 is integrated on the processor 113 to make the circuit structure in the embodiment simpler.
  • the mobile terminal 100 is further described below in conjunction with the working principle:
  • the detection signal is output to the detection module 111, and the detection module 111 performs BC1.2 detection to generate a type identification signal, and outputs the signal to the processor 113; when the recognition result is:
  • the processor 113 controls the second end of the second switch 115 to still be connected to the processor 113, that is, the third end of the second switch is disconnected from the first end of the first switch.
  • the processor 113 performs data exchange with the USB device, and determines that the USB device needs to output the charging voltage to be 5V; when the recognition result is: when the mobile terminal 100 is connected to the travel charger, the processor 113 controls the second switch.
  • the third end of the first switch 112 is connected to the first end of the first switch 112, that is, the second end of the second switch 115 is disconnected from the processor 113. At this time, the detection signal is output to the first switch 112 via the second switch 115.
  • the processor 113 controls the output switching circuit of the first switch 112 so that the second end of the first switch 112 can output different level combinations.
  • the LDO power supply 114 receives a level combination, the LDO power supply 114 generates a feedback signal.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the mobile terminal 100 only supports 5V.
  • the charger 200 outputs a charging voltage of 5V; if the charger 200 derives from the feedback signal, the mobile terminal 100 supports high voltage charging of 9V, and the charger 200 outputs a charging voltage of 9V; and so on, 12V or higher.
  • the output of the charging voltage is also determined based on the feedback signal.
  • the embodiment of the present disclosure adopts the above-mentioned circuit arrangement, generates a type identification signal by detecting the type of the charger, and outputs the type identification signal to the processor 113; the processor 113 performs control processing according to the type identification signal to determine the charger 200.
  • the charging voltage needs to be output; and the embodiment of the present disclosure realizes that the charging detection circuit 110 is set independently of the charging circuit, so that the charging detection circuit 110 and the charging circuit do not affect each other, which expands the flexibility of the circuit design, and thus can be charged.
  • the circuit is designed to output a higher charging voltage to meet the needs of users and improve the user experience.
  • FIG. 5 and FIG. 6 are schematic structural diagrams of a charging detection system according to some embodiments and other embodiments of the present disclosure, the charging detection system includes:
  • the charger 200 and the mobile terminal 100, the mobile terminal 100 includes a connector 120 and a charging detection circuit 110;
  • the charger 200 is configured to generate a detection signal, and is further configured to determine, according to the feedback signal generated by the charging detection circuit 110, a charging voltage that needs to be output;
  • the connector 120 is connected to the charger 200, and the detection signal generated by the charger 200 is connected to the charging detection circuit 110, and the feedback signal generated by the charging detection circuit 110 is output to the charger 200;
  • the charge detecting circuit 110 is connected to the connector 120 such that the charge detecting circuit 110 is connected to the charger 200 via the connector 120, and the charge detecting circuit 110 is configured to generate a feedback signal based on the detection signal.
  • the charging detection circuit 110 includes
  • Detection module 111 first switch 112, processor 113 and low dropout linear regulator LDO power supply 114;
  • the detecting module 111 is connected to the charger 200.
  • the detecting module 111 detects the type of the charger 200 according to the detection signal generated by the charger 200, and generates a type identification signal.
  • the detecting module 111 is further connected to the processor 113 for identifying the type.
  • the signal is output to the processor 113; specifically, the detection module 111 can be an integrated IC.
  • the detection module 111 receives the detection signal, the BC1.2 detection can be performed, thereby determining that the charger 200 connected to the mobile terminal 100 is a brigade. Charge, or USB device.
  • the mobile terminal 100 can be a mobile phone, a tablet computer, an MP3, an MP4, or a notebook computer.
  • the first switch 112 includes a first end, a second end, and a control end, and the first end of the first switch 112 is connected to the charger 113 for accessing the detection signal generated by the charger 200, and the first switch 112 The second end is connected to the LDO power supply 114.
  • the second end of the first switch 112 is an output switching circuit.
  • the control end of the first switch 112 is connected to the processor 113.
  • the processor 113 controls the switching of the output switching circuit to make the first switch 112.
  • the second end of the first switch 112 is a four-way single-pole double-throw switch, that is, the second end of the first switch 112 is four-way. Output, the processor 113 can switch the output switching path of the first switch 112 by controlling the blade switching of the first switch 112.
  • the processor 113 is connected to the charger 200.
  • the processor exchanges data with the charger according to the type identification signal, or performs switching control on the output switching circuit.
  • the processor 113 can be centrally processed in the mobile terminal 100.
  • the processor 113 can control the switching timing of the output switching circuit of the first switch 112 according to the level combination requirement of the high voltage communication protocol to output different level combinations.
  • the LDO power source 114 is connected to the charger 200 for generating a feedback signal according to the level combination, and outputting to the charger 200, so that the charger 200 determines the charging voltage that needs to be output, and achieves matching of the charging voltage.
  • the charge detection circuit 110 further includes:
  • the second switch 115 includes a first end, a second end, a third end, and a control end;
  • the first end of the second switch 115 is connected to the charger 200 for accessing the detection signal generated by the charger 200; the second end of the second switch 115 is connected to the processor 113, so that the processor 113 passes the second
  • the switch 115 is connected to the charger 200; the third end of the second switch 115 is connected to the first end of the first switch 112, so that the first end of the first switch 112 is connected to the charger 200 via the second switch 115;
  • the control end of the switch 115 is connected to the processor 113.
  • the processor 113 controls the second end of the second switch 115 to be connected to the processor 113 according to the type identification signal, so that the processor 113 exchanges data with the charger 200, or controls the first
  • the third end of the second switch 115 is connected to the first end of the first switch 112, and outputs a detection signal to the first end of the first switch 112.
  • the second switch 115 is an alternate selection switch, and the selection switching of the second switch 115 can be controlled by the processor 113.
  • the detection mode The block 111 may be including a first end, a second end, and an output for outputting the type identification signal; the first end of the detecting module 111 is connected to the charger 200 for accessing the detection signal generated by the charger 200.
  • the second end of the detecting module 111 is connected to the first end of the second switch 115, so that the first end of the second switch 115 is connected to the charger 200 via the detecting module 111; the output end of the detecting module 111, and the processor 200 A connection for outputting a type identification signal to the processor 200.
  • the first end of the detecting module 111 is the access end of the charging detecting circuit 110 to access the detecting signal, that is, the first end of the detecting module 111 in the charging detecting circuit 110 is connected to the connector 120.
  • the initial state of the second switch 115 is that the second end of the second switch 115 is connected to the processor 113.
  • the detection module 111 may further include a first end and an output for outputting the type identification signal; the first end of the detection module 111, and
  • the processor 113 is connected to connect the detection module 111 to the charger 200 via the processor 113.
  • the output of the detection module 111 is connected to the processor 113 for outputting a type identification signal to the processor 113.
  • the detection signal generated by the charger 200 needs to pass through the second switch 115 and the processor 113 to reach the detection module for BC1.2 detection. Therefore, the initial state of the second switch 115 is the second switch 115.
  • the two ends are connected to the processor 113.
  • the first end of the second switch 115 is the access end of the charging detection circuit 110 that accesses the detection signal, that is, the first end of the second switch 115 in the charging detection circuit 110 is connected to the connector 120.
  • the detecting module 111 and the processor 113 constitute a controller 116; specifically, the detecting module 111 is integrated on the processor 113 to make the circuit structure in the embodiment simpler.
  • the detection signal is output to the detection module 111, and the detection module 111 performs BC1.2 detection to generate a type identification signal, and outputs the signal to the processor 113; when the recognition result is:
  • the processor 113 controls the second end of the second switch 115 to still be connected to the processor 113, that is, the third end of the second switch is disconnected from the first end of the first switch.
  • the processor 113 performs data exchange with the USB device, and determines that the USB device needs to output the charging voltage to be 5V; when the recognition result is: when the mobile terminal 100 is connected to the travel charger, the processor 113 controls the second switch.
  • the third end of the first switch 112 is connected to the first end of the first switch 112, that is, the second end of the second switch 115 is disconnected from the processor 113.
  • the detection signal is output to the first switch 112 via the second switch 115, and the processor 113 controls the output switching circuit of the first switch 112 so that the second end of the first switch 112 can output different level combinations.
  • the LDO power supply 114 receives a level combination, the LDO power supply 114 generates a feedback signal.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the charger 200 determines the charging voltage to be output according to the feedback signal.
  • the charging voltage at this time is a defined voltage, which may be 5V, 9V or 12V.
  • the embodiment of the present disclosure adopts the above-mentioned circuit arrangement, generates a type identification signal by detecting the type of the charger, and outputs the type identification signal to the processor 113; the processor 113 performs control processing according to the type identification signal to determine the charger 200.
  • the charging voltage needs to be output; and the embodiment of the present disclosure realizes that the charging detection circuit 110 is set independently of the charging circuit, so that the charging detection circuit 110 and the charging circuit do not affect each other, which expands the flexibility of the circuit design, and thus can be charged.
  • the circuit is designed to output a higher charging voltage to meet the needs of users and improve the user experience.

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Abstract

一种充电检测电路、移动终端及充电检测系统，通过充电检测电路（110）中的检测模块（111）检测充电器（200）的类型，并产生类型识别信号，并输出至处理器（113）；处理器则根据类型识别信号进行控制处理，以确定充电器需要输出的充电电压；并且，将充电检测电路（111）与充电电路分离开。

Description

充电检测电路、移动终端及充电检测系统
相关申请的交叉引用
本申请主张在2015年5月28日在中国提交的中国专利申请No.201510283857.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开文本涉及电子设备领域，尤其涉及一种充电检测电路、移动终端及充电检测系统。
背景技术
随着智能手机电池容量的不断提升，相关技术中的充电方案其充电速度越来越慢，如对3200mAh的电池采用5V、1.6A的方案进行充电，至少需要3小时才能完成，这对于消费者而言，是难以接受的。因此，提高充电的速度能够有效地提高用户的使用体验。目前，相关技术中的移动终端采用的快速充电技术主要分为两类，一类是采用较大功率的充电器以5V电压对手机进行大电流充电；另一类则是采用高压进行充电。
在相关技术的高压快充方案中，充电器都会向下兼容5V的输出电压，可以对不支持高压快充的手机进行5V的充电；而如果需要进行更高电压的充电，需要充电器端与移动终端进行握手通信成功后，充电器才会输出9V或更高的电压进行快充。但由于相关技术的高压快充方案中，检测电路是集成在充电电路上的，使得充电IC只能支持到最高的9V高压充电。因此，相关技术中的高压充电方案并不能很好地满足用户的需求，需要提供一种可以提高到更高充电电压的技术方案。
发明内容
为克服相关技术中的问题，本公开文本一方面提供一种充电检测电路，包括：检测模块、第一开关、处理器以及低压差线性稳压器LDO电源；
所述检测模块，与充电器连接，所述检测模块根据所述充电器生成的检 测信号，检测所述充电器的类型，并生成类型识别信号；所述检测模块还与所述处理器连接，用于将所述类型识别信号输出至所述处理器；
所述第一开关，包括第一端、第二端和控制端，所述第一开关的第一端与所述充电器连接，用于接入由所述充电器生成的检测信号，所述第一开关的第二端与所述LDO电源连接，所述第一开关的第二端为输出切换电路，所述第一开关的控制端与所述处理器连接，通过所述处理器控制所述输出切换电路的切换，使所述第一开关的第二端根据所述检测信号生成不同的电平组合，输出至所述LDO电源；
所述处理器，与所述充电器连接，所述处理器根据所述类型识别信号，与所述充电器进行数据交换，或对所述输出切换电路进行切换控制；
所述LDO电源，与所述充电器连接，用于根据所述电平组合，生成反馈信号，并输出至所述充电器，以使所述充电器确定需要输出的充电电压。
另一方面，本公开文本还提供了一种移动终端，包括：
连接器以及如上所述的充电检测电路；
所述连接器，与充电器连接，将由所述充电器生成的检测信号接入至所述充电检测电路，还将由所述充电检测电路生成的反馈信号输出至所述充电器；
所述充电检测电路，与所述连接器连接，使所述充电检测电路经所述连接器与所述充电器连接，所述充电检测电路用于根据所述检测信号生成所述反馈信号。
再一方面，本公开文本还提供了一种充电检测系统，包括：
充电器以及移动终端，所述移动终端包括连接器以及如上所述的充电检测电路；
所述充电器，用于生成检测信号，还用于根据所述充电检测电路生成的反馈信号，确定需要输出的充电电压；
所述连接器，与充电器连接，将由所述充电器生成的检测信号接入至所述充电检测电路，还将由所述充电检测电路生成的反馈信号输出至所述充电器；
所述充电检测电路，与所述连接器连接，使所述充电检测电路经所述连 接器与所述充电器连接，所述充电检测电路用于根据所述检测信号生成所述反馈信号。
本公开文本实施例采用上述的电路设置，通过检测模块检测充电器的类型，产生类型识别信号，并输出至处理器；处理器则根据该类型识别信号进行控制处理，以确定充电器需要输出充电电压；并且，本公开文本实施例实现了将充电检测电路独立于充电电路进行设置，使充电检测电路与充电电路互不影响，扩展了电路设计的灵活性，进而可以将充电电路设计成能够输出更高的充电电压，以满足用户的需求，提高用户的使用体验。
附图说明
为了更清楚地说明本公开文本实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开文本的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为根据本公开文本一些实施例的充电检测电路的结构示意图；
图2为根据本公开文本另一些实施例的充电检测电路的结构示意图；
图3为根据本公开文本一些实施例的移动终端的结构示意图；
图4为根据本公开文本另一些实施例的移动终端的结构示意图；
图5为根据本公开文本一些实施例的充电检测系统的结构示意图；以及
图6为根据本公开文本另一些实施例的充电检测系统的结构示意图。
具体实施方式
为使本公开的实施例的目的、技术方案和优点更加清楚，下面将结合本公开的实施例的附图，对本公开的实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开文本保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权 利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
图1为根据本公开文本一些实施例的充电检测电路110的结构示意图，该充电检测电路110包括：
检测模块111、第一开关112、处理器113以及低压差线性稳压器LDO电源114；
检测模块111，与充电器200连接，检测模块111根据充电器200生成的检测信号，检测充电器200的类型，并生成类型识别信号；检测模块111还与处理器113连接，用于将类型识别信号输出至处理器113；具体地：检测模块111可以是集成IC，当检测模块111接收到检测信号时，即可进行BC1.2检测，进而判断出与移动终端100连接的充电器200是旅充，还是USB设备。其中，移动终端100可以是手机、平板电脑、MP3、MP4或笔记本电脑等。
第一开关112，包括第一端、第二端和控制端，第一开关112的第一端与充电器113连接，用于接入由充电器200生成的检测信号，第一开关112的第二端与LDO电源114连接，第一开关112的第二端为输出切换电路，第一开关112的控制端与处理器113连接，通过处理器113控制输出切换电路的切换，使第一开关112的第二端根据检测信号生成不同的电平组合，输出至LDO电源114；本实施例中，第一开关112为双路的单刀双掷开关，即第一开关112的第二端为四路输出，处理器113通过控制第一开关112的闸刀切换，即可实现第一开关112的输出切换通路的切换。
处理器113，与充电器200连接，处理器根据类型识别信号，与充电器进行数据交换，或对输出切换电路进行切换控制；本实施例中，处理器113可以为移动终端100内的中央处理器，该处理器113可以按照高压通讯协议的电平组合要求控制第一开关112的输出切换电路的切换时序，以输出不同的电平组合。
LDO电源114，与充电器200连接，用于根据电平组合，生成反馈信号，并输出至充电器200，以使充电器200确定需要输出的充电电压，实现充电电压的匹配。
该充电检测电路110还包括：
第二开关115；第二开关115包括第一端、第二端、第三端和控制端；
第二开关115的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；第二开关115的第二端，与处理器113连接，使处理器113经第二开关115与充电器200连接；第二开关115的第三端，与第一开关112的第一端连接，使第一开关112的第一端经第二开关115与充电器200连接；第二开关115的控制端，与处理器113连接，处理器113根据类型识别信号，控制第二开关115的第二端与处理器113连接，使处理器113与充电器200进行数据交换，或控制第二开关115的第三端与第一开关112的第一端连接，将检测信号输出至第一开关112的第一端。本实施例中，第二开关115为二选一的选择开关，通过处理器113即可控制该第二开关115的选择切换。
其中，检测模块111包括第一端、第二端和用于输出类型识别信号的输出端；检测模块111的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；检测模块111的第二端，与第二开关115的第一端连接，使第二开关115的第一端经检测模块111与充电器200连接；检测模块111的输出端，与处理器200连接，用于输出类型识别信号至处理器200。本实施例中，检测模块111的第一端即为充电检测电路110接入检测信号的接入端。
进一步地，第二开关115的初始状态为第二开关115的第二端与处理器113连接。
以下结合工作原理对本实施例的充电检测电路110作进一步说明：
本实施例中，在充电器200生成检测信号之后，检测信号被输出至检测模块111，通过检测模块111进行BC1.2检测，产生类型识别信号，并输出至处理器113；当识别结果为：与移动终端100连接的是USB设备时，处理器113控制第二开关115的第二端仍然与处理器113连接，即第二开关的第三端与第一开关的第一端的连接断开，此时，处理器113与USB设备之间进行数 据交换，并确定USB设备需要输出充电电压为5V；当识别结果为：与移动终端100连接的是旅充时，处理器113控制第二开关115的第三端与第一开关112的第一端连接，即第二开关115的第二端与处理器113的连接断开，此时，检测信号经第二开关115输出至第一开关112，处理器113则对第一开关112的输出切换电路进行控制，使第一开关112的第二端可以输出不同的电平组合。当LDO电源114接收到电平组合时，LDO电源114会生成反馈信号。
当充电器200接收到反馈信号时，充电器200会根据反馈信号确定需要输出的充电电压，此时的充电电压是已经定义好的电压，可以是5V、9V或12V等。例如，如果充电器200根据反馈信号得出，移动终端100仅支持5V的充电，充电器200则输出5V的充电电压；如果充电器200根据反馈信号得出，移动终端100支持9V的高压充电，充电器200则输出9V的充电电压；以此类推，12V或更高的充电电压的输出也是根据反馈信号进行确定。
本公开文本实施例采用上述的电路设置，通过检测模块检测充电器的类型，产生类型识别信号，并输出至处理器113；处理器113则根据该类型识别信号进行控制处理，以确定充电器200需要输出充电电压；并且，本公开文本实施例实现了将充电检测电路110独立于充电电路进行设置，使充电检测电路110与充电电路互不影响，扩展了电路设计的灵活性，进而可以将充电电路设计成能够输出更高的充电电压，以满足用户的需求，提高用户的使用体验。
图2为根据本公开文本一些实施例的充电检测电路110的结构示意图，该充电检测电路110包括：
检测模块111、第一开关112、处理器113以及低压差线性稳压器LDO电源114；
检测模块111，与充电器200连接，检测模块111根据充电器200生成的检测信号，检测充电器200的类型，并生成类型识别信号；检测模块111还与处理器113连接，用于将类型识别信号输出至处理器113；具体地：检测模块111可以是集成IC，当检测模块111接收到检测信号时，即可进行BC1.2检测，进而判断出与移动终端100连接的充电器200是旅充，还是USB设备。 其中，移动终端100可以是手机、平板电脑、MP3、MP4或笔记本电脑等。
第一开关112，包括第一端、第二端和控制端，第一开关112的第一端与充电器113连接，用于接入由充电器200生成的检测信号，第一开关112的第二端与LDO电源114连接，第一开关112的第二端为输出切换电路，第一开关112的控制端与处理器113连接，通过处理器113控制输出切换电路的切换，使第一开关112的第二端根据检测信号生成不同的电平组合，输出至LDO电源114；本实施例中，第一开关112为双路的单刀双掷开关，即第一开关112的第二端为四路输出，处理器113通过控制第一开关112的闸刀切换，即可实现第一开关112的输出切换通路的切换。
处理器113，与充电器200连接，处理器根据类型识别信号，与充电器进行数据交换，或对输出切换电路进行切换控制；本实施例中，处理器113可以为移动终端100内的中央处理器，该处理器113可以按照高压通讯协议的电平组合要求控制第一开关112的输出切换电路的切换时序，以输出不同的电平组合。
LDO电源114，与充电器200连接，用于根据电平组合，生成反馈信号，并输出至充电器200，以使充电器200确定需要输出的充电电压，实现充电电压的匹配。
该充电检测电路110还包括：
第二开关115；第二开关115包括第一端、第二端、第三端和控制端；
第二开关115的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；第二开关115的第二端，与处理器113连接，使处理器113经第二开关115与充电器200连接；第二开关115的第三端，与第一开关112的第一端连接，使第一开关112的第一端经第二开关115与充电器200连接；第二开关115的控制端，与处理器113连接，处理器113根据类型识别信号，控制第二开关115的第二端与处理器113连接，使处理器113与充电器200进行数据交换，或控制第二开关115的第三端与第一开关112的第一端连接，将检测信号输出至第一开关112的第一端。本实施例中，第二开关115为二选一的选择开关，通过处理器113即可控制该第二开关115的选择切换。
其中，检测模块111包括第一端和用于输出类型识别信号的输出端；检 测模块111的第一端，与处理器113连接，使检测模块111经处理器113与充电器200连接；检测模块111的输出端，与处理器113连接，用于输出类型识别信号至处理器113。在本实施例中，由充电器200生成的检测信号需要经第二开关115、处理器113才能到达检测模块进行BC1.2检测，因此，第二开关115的初始状态为第二开关115的第二端与处理器113连接。本实施例中，第二开关115的第一端即为充电检测电路110接入检测信号的接入端。
进一步地，检测模块111与处理器113构成控制器116；具体地：检测模块111是集成在处理器113上，使本实施例中的电路结构更简单。
以下结合工作原理对本实施例的充电检测电路110作进一步说明：
本实施例中，在充电器200生成检测信号之后，检测信号被输出至检测模块111，通过检测模块111进行BC1.2检测，产生类型识别信号，并输出至处理器113；当识别结果为：与移动终端100连接的是USB设备时，处理器113控制第二开关115的第二端仍然与处理器113连接，即第二开关的第三端与第一开关的第一端的连接断开，此时，处理器113与USB设备之间进行数据交换，并确定USB设备需要输出充电电压为5V；当识别结果为：与移动终端100连接的是旅充时，处理器113控制第二开关115的第三端与第一开关112的第一端连接，即第二开关115的第二端与处理器113的连接断开，此时，检测信号经第二开关115输出至第一开关112，处理器113则对第一开关112的输出切换电路进行控制，使第一开关112的第二端可以输出不同的电平组合。当LDO电源114接收到电平组合时，LDO电源114会生成反馈信号。
当充电器200接收到反馈信号时，充电器200会根据反馈信号确定需要输出的充电电压，此时的充电电压是已经定义好的电压，可以是5V、9V或12V等。例如，如果充电器200根据反馈信号得出，移动终端100仅支持5V的充电，充电器200则输出5V的充电电压；如果充电器200根据反馈信号得出，移动终端100支持9V的高压充电，充电器200则输出9V的充电电压；以此类推，12V或更高的充电电压的输出也是根据反馈信号进行确定。
本公开文本实施例采用上述的电路设置，通过检测模块检测充电器的类 型，产生类型识别信号，并输出至处理器113；处理器113则根据该类型识别信号进行控制处理，以确定充电器200需要输出充电电压；并且，本公开文本实施例实现了将充电检测电路110独立于充电电路进行设置，使充电检测电路110与充电电路互不影响，扩展了电路设计的灵活性，进而可以将充电电路设计成能够输出更高的充电电压，以满足用户的需求，提高用户的使用体验。
图3和图4分别为根据本公开文本一些实施例和另一些实施例的移动终端100的结构示意图，该移动终端100包括：
连接器120以及充电检测电路110；
连接器120，与充电器200连接，将由充电器200生成的检测信号接入至充电检测电路110，还将由充电检测电路110生成的反馈信号输出至充电器200；
充电检测电路110，与连接器120连接，使充电检测电路110经连接器120与充电器200连接，充电检测电路110用于根据检测信号生成反馈信号。
具体地：该充电检测电路110包括
检测模块111、第一开关112、处理器113以及低压差线性稳压器LDO电源114；
检测模块111，与充电器200连接，检测模块111根据充电器200生成的检测信号，检测充电器200的类型，并生成类型识别信号；检测模块111还与处理器113连接，用于将类型识别信号输出至处理器113；具体地：检测模块111可以是集成IC，当检测模块111接收到检测信号时，即可进行BC1.2检测，进而判断出与移动终端100连接的充电器200是旅充，还是USB设备。其中，移动终端100可以是手机、平板电脑、MP3、MP4或笔记本电脑等。
第一开关112，包括第一端、第二端和控制端，第一开关112的第一端与充电器113连接，用于接入由充电器200生成的检测信号，第一开关112的第二端与LDO电源114连接，第一开关112的第二端为输出切换电路，第一开关112的控制端与处理器113连接，通过处理器113控制输出切换电路的切换，使第一开关112的第二端根据检测信号生成不同的电平组合，输出至LDO电源114；本实施例中，第一开关112为双路的单刀双掷开关，即第一 开关112的第二端为四路输出，处理器113通过控制第一开关112的闸刀切换，即可实现第一开关112的输出切换通路的切换。
处理器113，与充电器200连接，处理器根据类型识别信号，与充电器进行数据交换，或对输出切换电路进行切换控制；本实施例中，处理器113可以为移动终端100内的中央处理器，该处理器113可以按照高压通讯协议的电平组合要求控制第一开关112的输出切换电路的切换时序，以输出不同的电平组合。
LDO电源114，与充电器200连接，用于根据电平组合，生成反馈信号，并输出至充电器200，以使充电器200确定需要输出的充电电压，实现充电电压的匹配。
该充电检测电路110还包括：
第二开关115；第二开关115包括第一端、第二端、第三端和控制端；
第二开关115的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；第二开关115的第二端，与处理器113连接，使处理器113经第二开关115与充电器200连接；第二开关115的第三端，与第一开关112的第一端连接，使第一开关112的第一端经第二开关115与充电器200连接；第二开关115的控制端，与处理器113连接，处理器113根据类型识别信号，控制第二开关115的第二端与处理器113连接，使处理器113与充电器200进行数据交换，或控制第二开关115的第三端与第一开关112的第一端连接，将检测信号输出至第一开关112的第一端。本实施例中，第二开关115为二选一的选择开关，通过处理器113即可控制该第二开关115的选择切换。
其中，参照图3，在本公开文本移动终端的一些实施例中，检测模块111可以是，包括第一端、第二端和用于输出类型识别信号的输出端；检测模块111的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；检测模块111的第二端，与第二开关115的第一端连接，使第二开关115的第一端经检测模块111与充电器200连接；检测模块111的输出端，与处理器200连接，用于输出类型识别信号至处理器200。本实施例中，检测模块111的第一端即为充电检测电路110接入检测信号的接入端，即充电检测电路110中检测模块111的第一端与连接器120连接。
进一步地，第二开关115的初始状态为第二开关115的第二端与处理器113连接。
或参照图4，在本公开文本移动终端的另一些实施例中，检测模块111可以是，包括第一端和用于输出类型识别信号的输出端；检测模块111的第一端，与处理器113连接，使检测模块111经处理器113与充电器200连接；检测模块111的输出端，与处理器113连接，用于输出类型识别信号至处理器113。在本实施例中，由充电器200生成的检测信号需要经第二开关115、处理器113才能到达检测模块进行BC1.2检测，因此，第二开关115的初始状态为第二开关115的第二端与处理器113连接。本实施例中，第二开关115的第一端即为充电检测电路110接入检测信号的接入端，即充电检测电路110中第二开关115的第一端与连接器120连接。
进一步地，检测模块111与处理器113构成控制器116；具体地：检测模块111集成在处理器113上，使本实施例中的电路结构更简单。
以下结合工作原理对移动终端100作进一步说明：
本实施例中，在充电器200生成检测信号之后，检测信号被输出至检测模块111，通过检测模块111进行BC1.2检测，产生类型识别信号，并输出至处理器113；当识别结果为：与移动终端100连接的是USB设备时，处理器113控制第二开关115的第二端仍然与处理器113连接，即第二开关的第三端与第一开关的第一端的连接断开，此时，处理器113与USB设备之间进行数据交换，并确定USB设备需要输出充电电压为5V；当识别结果为：与移动终端100连接的是旅充时，处理器113控制第二开关115的第三端与第一开关112的第一端连接，即第二开关115的第二端与处理器113的连接断开，此时，检测信号经第二开关115输出至第一开关112，处理器113则对第一开关112的输出切换电路进行控制，使第一开关112的第二端可以输出不同的电平组合。当LDO电源114接收到电平组合时，LDO电源114会生成反馈信号。
当充电器200接收到反馈信号时，充电器200会根据反馈信号确定需要输出的充电电压，此时的充电电压是已经定义好的电压，可以是5V、9V或12V等。例如，如果充电器200根据反馈信号得出，移动终端100仅支持5V 的充电，充电器200则输出5V的充电电压；如果充电器200根据反馈信号得出，移动终端100支持9V的高压充电，充电器200则输出9V的充电电压；以此类推，12V或更高的充电电压的输出也是根据反馈信号进行确定。
本公开文本实施例采用上述的电路设置，通过检测模块检测充电器的类型，产生类型识别信号，并输出至处理器113；处理器113则根据该类型识别信号进行控制处理，以确定充电器200需要输出充电电压；并且，本公开文本实施例实现了将充电检测电路110独立于充电电路进行设置，使充电检测电路110与充电电路互不影响，扩展了电路设计的灵活性，进而可以将充电电路设计成能够输出更高的充电电压，以满足用户的需求，提高用户的使用体验。
图5和图6分别为根据本公开文本一些实施例和另一些实施例的充电检测系统的结构示意图，该充电检测系统包括：
充电器200以及移动终端100，移动终端100包括连接器120以及充电检测电路110；
充电器200，用于生成检测信号，还用于根据充电检测电路110生成的反馈信号，确定需要输出的充电电压；
连接器120，与充电器200连接，将由充电器200生成的检测信号接入至充电检测电路110，还将由充电检测电路110生成的反馈信号输出至充电器200；
充电检测电路110，与连接器120连接，使充电检测电路110经连接器120与充电器200连接，充电检测电路110用于根据检测信号生成反馈信号。
具体地：该充电检测电路110包括
检测模块111、第一开关112、处理器113以及低压差线性稳压器LDO电源114；
检测模块111，与充电器200连接，检测模块111根据充电器200生成的检测信号，检测充电器200的类型，并生成类型识别信号；检测模块111还与处理器113连接，用于将类型识别信号输出至处理器113；具体地：检测模块111可以是集成IC，当检测模块111接收到检测信号时，即可进行BC1.2检测，进而判断出与移动终端100连接的充电器200是旅充，还是USB设备。 其中，移动终端100可以是手机、平板电脑、MP3、MP4或笔记本电脑等。
第一开关112，包括第一端、第二端和控制端，第一开关112的第一端与充电器113连接，用于接入由充电器200生成的检测信号，第一开关112的第二端与LDO电源114连接，第一开关112的第二端为输出切换电路，第一开关112的控制端与处理器113连接，通过处理器113控制输出切换电路的切换，使第一开关112的第二端根据检测信号生成不同的电平组合，输出至LDO电源114；本实施例中，第一开关112为双路的单刀双掷开关，即第一开关112的第二端为四路输出，处理器113通过控制第一开关112的闸刀切换，即可实现第一开关112的输出切换通路的切换。
处理器113，与充电器200连接，处理器根据类型识别信号，与充电器进行数据交换，或对输出切换电路进行切换控制；本实施例中，处理器113可以为移动终端100内的中央处理器，该处理器113可以按照高压通讯协议的电平组合要求控制第一开关112的输出切换电路的切换时序，以输出不同的电平组合。
LDO电源114，与充电器200连接，用于根据电平组合，生成反馈信号，并输出至充电器200，以使充电器200确定需要输出的充电电压，实现充电电压的匹配。
该充电检测电路110还包括：
第二开关115；第二开关115包括第一端、第二端、第三端和控制端；
第二开关115的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；第二开关115的第二端，与处理器113连接，使处理器113经第二开关115与充电器200连接；第二开关115的第三端，与第一开关112的第一端连接，使第一开关112的第一端经第二开关115与充电器200连接；第二开关115的控制端，与处理器113连接，处理器113根据类型识别信号，控制第二开关115的第二端与处理器113连接，使处理器113与充电器200进行数据交换，或控制第二开关115的第三端与第一开关112的第一端连接，将检测信号输出至第一开关112的第一端。本实施例中，第二开关115为二选一的选择开关，通过处理器113即可控制该第二开关115的选择切换。
其中，参照图5，在本公开文本充电检测系统的一些实施例中，检测模 块111可以是，包括第一端、第二端和用于输出类型识别信号的输出端；检测模块111的第一端，与充电器200连接，用于接入由充电器200生成的检测信号；检测模块111的第二端，与第二开关115的第一端连接，使第二开关115的第一端经检测模块111与充电器200连接；检测模块111的输出端，与处理器200连接，用于输出类型识别信号至处理器200。本实施例中，检测模块111的第一端即为充电检测电路110接入检测信号的接入端，即充电检测电路110中检测模块111的第一端与连接器120连接。
进一步地，第二开关115的初始状态为第二开关115的第二端与处理器113连接。
或参照图6，在本公开文本充电检测系统的另一些实施例中，检测模块111还可以是，包括第一端和用于输出类型识别信号的输出端；检测模块111的第一端，与处理器113连接，使检测模块111经处理器113与充电器200连接；检测模块111的输出端，与处理器113连接，用于输出类型识别信号至处理器113。在本实施例中，由充电器200生成的检测信号需要经第二开关115、处理器113才能到达检测模块进行BC1.2检测，因此，第二开关115的初始状态为第二开关115的第二端与处理器113连接。本实施例中，第二开关115的第一端即为充电检测电路110接入检测信号的接入端，即充电检测电路110中第二开关115的第一端与连接器120连接。
进一步地，检测模块111与处理器113构成控制器116；具体地：检测模块111集成在处理器113上，使本实施例中的电路结构更简单。
以下结合工作原理对充电检测系统进一步说明：
本实施例中，在充电器200生成检测信号之后，检测信号被输出至检测模块111，通过检测模块111进行BC1.2检测，产生类型识别信号，并输出至处理器113；当识别结果为：与移动终端100连接的是USB设备时，处理器113控制第二开关115的第二端仍然与处理器113连接，即第二开关的第三端与第一开关的第一端的连接断开，此时，处理器113与USB设备之间进行数据交换，并确定USB设备需要输出充电电压为5V；当识别结果为：与移动终端100连接的是旅充时，处理器113控制第二开关115的第三端与第一开关112的第一端连接，即第二开关115的第二端与处理器113的连接断开， 此时，检测信号经第二开关115输出至第一开关112，处理器113则对第一开关112的输出切换电路进行控制，使第一开关112的第二端可以输出不同的电平组合。当LDO电源114接收到电平组合时，LDO电源114会生成反馈信号。
当充电器200接收到反馈信号时，充电器200会根据反馈信号确定需要输出的充电电压，此时的充电电压是已经定义好的电压，可以是5V、9V或12V等。例如，如果充电器200根据反馈信号得出，移动终端100仅支持5V的充电，充电器200则输出5V的充电电压；如果充电器200根据反馈信号得出，移动终端100支持9V的高压充电，充电器200则输出9V的充电电压；以此类推，12V或更高的充电电压的输出也是根据反馈信号进行确定。
本公开文本实施例采用上述的电路设置，通过检测模块检测充电器的类型，产生类型识别信号，并输出至处理器113；处理器113则根据该类型识别信号进行控制处理，以确定充电器200需要输出充电电压；并且，本公开文本实施例实现了将充电检测电路110独立于充电电路进行设置，使充电检测电路110与充电电路互不影响，扩展了电路设计的灵活性，进而可以将充电电路设计成能够输出更高的充电电压，以满足用户的需求，提高用户的使用体验。
如上所述是结合具体内容提供的一种或多种实施方式，并不认定本公开文本的具体实施只局限于这些说明。凡与本公开文本的方法、结构等近似、雷同，或是对于本公开文本构思前提下做出若干技术推演或替换，都应当视为本公开文本的保护范围。

Claims (8)

  1. 一种充电检测电路，包括检测模块、第一开关、处理器以及低压差线性稳压器LDO电源；
    所述检测模块，与充电器连接，所述检测模块根据所述充电器生成的检测信号，检测所述充电器的类型，并生成类型识别信号；所述检测模块还与所述处理器连接，用于将所述类型识别信号输出至所述处理器；
    所述第一开关，包括第一端、第二端和控制端，所述第一开关的第一端与所述充电器连接，用于接入由所述充电器生成的检测信号，所述第一开关的第二端与所述LDO电源连接，所述第一开关的第二端为输出切换电路，所述第一开关的控制端与所述处理器连接，通过所述处理器控制所述输出切换电路的切换，使所述第一开关的第二端根据所述检测信号生成不同的电平组合，输出至所述LDO电源；
    所述处理器，与所述充电器连接，所述处理器根据所述类型识别信号，与所述充电器进行数据交换，或对所述输出切换电路进行切换控制；以及
    所述LDO电源，与所述充电器连接，用于根据所述电平组合，生成反馈信号，并输出至所述充电器，以使所述充电器确定需要输出的充电电压。
  2. 如权利要求1所述的充电检测电路，还包括：第二开关，所述第二开关包括第一端、第二端、第三端和控制端；
    所述第二开关的第一端，与所述充电器连接，用于接入由所述充电器生成的检测信号；
    所述第二开关的第二端，与所述处理器连接，使所述处理器经所述第二开关与所述充电器连接；
    所述第二开关的第三端，与所述第一开关的第一端连接，使所述第一开关的第一端经所述第二开关与所述充电器连接；以及
    所述第二开关的控制端，与所述处理器连接，所述处理器根据所述类型识别信号，控制所述第二开关的第二端与所述处理器连接，使所述处理器与所述充电器进行数据交换，或控制所述第二开关的第三端与所述第一开关的 第一端连接，将所述检测信号输出至所述第一开关的第一端。
  3. 如权利要求2所述的充电检测电路，其中，所述检测模块包括第一端、第二端和用于输出所述类型识别信号的输出端；
    所述检测模块的第一端，与所述充电器连接，用于接入由所述充电器生成的检测信号；
    所述检测模块的第二端，与所述第二开关的第一端连接，使所述第二开关的第一端经所述检测模块与所述充电器连接；以及
    所述检测模块的输出端，与所述处理器连接，用于输出所述类型识别信号至所述处理器。
  4. 如权利要求3所述的充电检测电路，其中，所述第二开关的初始状态为所述第二开关的第二端与所述处理器连接。
  5. 如权利要求2所述的充电检测电路，其中，所述检测模块包括第一端和用于输出所述类型识别信号的输出端；
    所述检测模块的第一端，与所述处理器连接，使所述检测模块经所述处理器与所述充电器连接；以及
    所述检测模块的输出端，与所述处理器连接，用于输出所述类型识别信号至所述处理器。
  6. 如权利要求5所述的充电检测电路，其中，所述检测模块与所述处理器构成控制器。
  7. 一种移动终端，包括连接器以及如权利要求1至6任一项所述的充电检测电路；
    所述连接器，与充电器连接，将由所述充电器生成的检测信号接入至所述充电检测电路，还将由所述充电检测电路生成的反馈信号输出至所述充电器；以及
    所述充电检测电路，与所述连接器连接，使所述充电检测电路经所述连接器与所述充电器连接，所述充电检测电路用于根据所述检测信号生成所述反馈信号。
  8. 一种充电检测系统，包括充电器以及移动终端，所述移动终端包括连接器以及如权利要求1至6任一项所述的充电检测电路；
    所述充电器，用于生成检测信号，还用于根据所述充电检测电路生成的反馈信号，确定需要输出的充电电压；
    所述连接器，与充电器连接，将由所述充电器生成的检测信号接入至所述充电检测电路，还将由所述充电检测电路生成的反馈信号输出至所述充电器；以及
    所述充电检测电路，与所述连接器连接，使所述充电检测电路经所述连接器与所述充电器连接，所述充电检测电路用于根据所述检测信号生成所述反馈信号。
PCT/CN2016/080633 2015-05-28 2016-04-29 充电检测电路、移动终端及充电检测系统 Ceased WO2016188301A1 (zh)

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