WO2016188301A1 - Circuit de détection de charge, terminal mobile et système de détection de charge - Google Patents

Circuit de détection de charge, terminal mobile et système de détection de charge 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)
Chinese (zh)
Inventor
刘定球
刘国红
苏远腾
邵超杰
魏华兵
Original Assignee
维沃移动通信有限公司
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Publication of WO2016188301A1 publication Critical patent/WO2016188301A1/fr

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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—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention porte sur un circuit de détection de charge, un terminal mobile et un système de détection de charge. Un module de détection (111) dans le circuit de détection de charge (110) détecte un type d'un chargeur (200), génère un signal d'identification de type, et délivre le signal d'identification de type à un processeur (113) ; et le processeur effectue une commande selon le signal d'identification de type pour déterminer une tension de charge devant être délivrée par le chargeur et séparer le circuit de détection de charge (111) d'un circuit de charge.
PCT/CN2016/080633 2015-05-28 2016-04-29 Circuit de détection de charge, terminal mobile et système de détection de charge WO2016188301A1 (fr)

Applications Claiming Priority (2)

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CN201510283857.3A CN105281395B (zh) 2015-05-28 2015-05-28 一种充电检测电路、移动终端及充电检测系统
CN201510283857.3 2015-05-28

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CN105281395B (zh) * 2015-05-28 2018-03-20 维沃移动通信有限公司 一种充电检测电路、移动终端及充电检测系统
CN107566088B (zh) * 2017-09-07 2019-04-12 维沃移动通信有限公司 一种波特率的调整方法及充电适配器
CN107942170A (zh) * 2017-11-30 2018-04-20 深圳市新国都支付技术有限公司 一种充电检测设备

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