WO2021135687A1 - 电子设备与兼具快充与音频传输功能的配件 - Google Patents

电子设备与兼具快充与音频传输功能的配件 Download PDF

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Publication number
WO2021135687A1
WO2021135687A1 PCT/CN2020/129081 CN2020129081W WO2021135687A1 WO 2021135687 A1 WO2021135687 A1 WO 2021135687A1 CN 2020129081 W CN2020129081 W CN 2020129081W WO 2021135687 A1 WO2021135687 A1 WO 2021135687A1
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WO
WIPO (PCT)
Prior art keywords
pin
accessory
type
switch
female
Prior art date
Application number
PCT/CN2020/129081
Other languages
English (en)
French (fr)
Inventor
陶红霞
Original Assignee
上海爻火微电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海爻火微电子有限公司 filed Critical 上海爻火微电子有限公司
Priority to US17/295,209 priority Critical patent/US11611221B2/en
Publication of WO2021135687A1 publication Critical patent/WO2021135687A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0274—Details of the structure or mounting of specific components for an electrical connector module
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus

Definitions

  • the invention relates to the field of charging, in particular to an electronic device and an accessory with both fast charging and audio transmission functions.
  • audio interfaces such as 3.5mm headphone jacks
  • both the audio signal transmission function and the charging function need to be implemented from the Type C interface.
  • the fast charging protocol communication is usually realized by using the CC pin.
  • the fast charging protocol communication cannot be realized. It can be seen that fast charging cannot be achieved when using accessories that have both charging and audio transmission functions.
  • the invention provides an electronic device and an accessory with both fast charging and audio transmission functions, so as to solve the problem that fast charging cannot be realized when the accessory with both charging and audio transmission functions is used.
  • an electronic device that can be connected to a charger and an audio connector via an accessory, and the electronic device includes: a fast charge controller and a device Type C female seat;
  • the fast charge controller is used for:
  • the SBU pin of the Type C female socket of the device and the corresponding pin of the charger connected via the accessory are used to perform fast Charging protocol communication.
  • the SBU pin of the Type C female base of the device is connected to the fast charge controller via a switch combination.
  • the two SBU pins of the Type C female base of the device are SBU1 and SBU2 respectively, and the SBU1 and SBU2 feet of the Type C female base of the device are connected to one side of the switch combination.
  • the first data pin and the second data pin of the charging controller are connected to the other side of the switch combination;
  • the switch combination is used for:
  • the SBU1 pin of the device Type C female socket is connected to the first data pin, and the SBU2 pin of the device Type C female socket is connected to the second data pin, or:
  • the SBU1 pin of the device Type C female socket is connected to the second data pin, and the SBU2 pin of the device Type C female socket is connected to the first data pin.
  • the electronic device further includes a processor, and when the accessory is connected to the device Type C female base, the DP pin and the DM pin of the device Type C female base are respectively connected to the accessory of the accessory DP pin and DM pin of Type C male header;
  • the processor directly or indirectly connects the DP pin and the DM pin of the Type C female socket of the device to use it to interact with the accessory with a digital audio signal, and the digital audio signal matches the accessory to interact with the audio connector Analog audio signal.
  • one side of the switch combination is also connected to the DP pin and DM pin of the device Type C female base, and the other side of the switch combination is also connected to the processor for receiving USB2.0 digital signals.
  • Digital signal pin
  • the switch combination is used for:
  • the electronic device further includes a current source and a voltage detection module, and the current source is connected to the SBU pin of the Type C female base of the device through the switch combination, and is used to output current to the SBU pin;
  • the voltage detection module is directly or indirectly connected to the SBU pin of the Type C female base of the device to detect the voltage information of the SBU pin, so that the external impedance of the SBU pin of the Type C female base of the device can be based on the voltage information It is determined.
  • the electronic device further includes a power management module connected to the VBUS pin of the Type C female socket of the device;
  • the CC pin of the device Type C female socket When the accessory is connected to the device Type C female socket, the CC pin of the device Type C female socket is connected to the CC pin of the accessory Type C male socket of the accessory; the CC pin of the device Type C female socket is connected
  • the processor is configured to determine the external connection status of the accessory according to the signal of the CC pin of the Type C female socket of the device; the external connection status includes that the audio connector is connected to the accessory, but the The first connection state where the charger is not connected to the accessory, and the external connection state is the second connection state where the charger is connected to the accessory;
  • the processor is further configured to instruct the power management module to use the VBUS pin of the device Type C female base to supply power to the accessory;
  • the processor is further configured to instruct the power management module to use the VBUS pin of the device Type C female base to receive charging.
  • an accessory with both fast charging and audio transmission functions including: an accessory Type C female socket for connecting a charger, an accessory Type C male connector, and an accessory for connecting an audio connector Audio interface; the accessory Type C male connector is used to connect the device Type C female connector of the electronic equipment involved in the first aspect and its optional solutions.
  • the SBU pin of the accessory Type C male connector includes the SBU1 pin and the SBU2 pin of the accessory Type C male connector;
  • the SBU1 pin and SBU2 pin of the accessory Type C male connector are respectively connected to the DP pin and DM pin of the accessory Type C female socket.
  • the accessory Type C female socket When the charger is connected to the accessory Type C female socket, the accessory Type C female socket
  • the DP pin and DM pin of the base are respectively connected to the D+ pin and D- pin of the charger;
  • the SBU1 and SBU2 feet of the accessory Type C male connector are respectively connected to the SBU1 and SBU2 feet of the accessory Type C female socket.
  • the accessory Type C female socket When the charger is connected to the accessory Type C female socket, the accessory Type C female socket
  • the SBU1 pin and the SBU2 pin of the base are respectively connected to the SBU1 pin and the SBU2 pin of the charger.
  • the accessory further includes an audio processing module
  • the three signal transmission pins of the audio processing module are respectively connected to the left channel pin, the right channel pin and the microphone pin in the audio interface; the audio processing module is also connected to the accessory Type C male connector DP feet and DM feet;
  • the audio processing module is used for:
  • the digital audio signal is exchanged with the connected electronic device through the DP pin and the DM pin of the Type C male connector of the accessory;
  • the conversion between the digital audio signal and the analog audio signal is performed.
  • the first detection pin and the second detection pin of the audio processing module are also connected to the audio interface, and the first detection pin and the second detection pin can be connected to the audio interface.
  • the connector is shorted when fully connected to the audio interface, and the first detection pin is connected to the CC pin of the Type C male connector of the accessory;
  • the first detection pin and the second detection pin are short-circuited and can be Pull the CC pin of the accessory Type C male connector to a first level to instruct the electronic device connected to the accessory to directly or indirectly supply power to the audio processing module;
  • the audio processing module can be powered by the charger.
  • the accessory further includes a control module; the power supply pin of the control module is connected to the VBUS pin of the accessory Type C female base, so that when the charger is connected to the accessory Type C female base, Powered by the charger;
  • control module When the charger is connected to the accessory Type C female base, the control module is also used to:
  • the accessory further includes: a first switch, a second switch, a third switch, a fourth switch, and a low-dropout linear regulator;
  • the first switch is connected between the first detection pin and the second detection pin, and the first switch can be turned on when the audio connector is fully connected to the audio interface;
  • the second switch Connected between the second detection pin and ground, and a resistance unit is connected in parallel at both ends of the second switch;
  • the third switch is connected to the VBUS pin of the accessory Type C female seat and the accessory Type Between the VBUS pins of the C male;
  • the CC pin of the accessory Type C male is connected to the VBUS pin of the accessory Type C male via the fourth switch and a resistance unit, and the VBUS of the accessory Type C male
  • the pin also supplies power to the audio processing module through the low-dropout linear regulator;
  • control module When the control module pulls the CC pin of the accessory Type C male connector to the second level, it is specifically configured to: control the second switch to turn off, and control the third switch and the fourth switch Conduction.
  • the charger connected to the accessory needs to support the ability to perform fast charge communication through the VBUS pin. It only needs to be responsible for the connection of VBUS pin from female to male.
  • the electronic equipment can use the SBU pin of the device Type C female socket to communicate with the D+ and D- pins of the charger for fast charging protocol, which is a breakthrough In the existing fast charging method, the conventional idea of using the CC pin for fast charging protocol communication, and furthermore, when using an accessory with an audio transmission function, fast charging can also be realized.
  • the required pins can be saved, and the use of the SBU pins in the fast charge protocol communication can be guaranteed.
  • FIG. 1 is a schematic diagram 1 of the structure of an electronic device in an embodiment of the present invention.
  • FIG. 2 is a second schematic diagram of the structure of an electronic device in an embodiment of the present invention.
  • FIG. 3 is a third schematic diagram of the structure of an electronic device in an embodiment of the present invention.
  • FIG. 4 is a schematic diagram 1 of the structure of an accessory and an electronic device in an embodiment of the present invention.
  • FIG. 5 is a second schematic diagram of the structure of an accessory and an electronic device in an embodiment of the present invention.
  • FIG. 6 is a third schematic diagram of the structure of an accessory and an electronic device in an embodiment of the present invention.
  • FIG. 7 is a fourth schematic diagram of the structure of an accessory and an electronic device in an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a circuit of an accessory and an electronic device in an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of the structure of an electronic device in another embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the structure of an accessory and an electronic device in another embodiment of the present invention.
  • Fig. 11 is a schematic circuit diagram of an accessory and an electronic device in another embodiment of the present invention.
  • the electronic device 1 can be connected to the charger 4 and the audio connector 3 via the accessory 2 respectively, and the electronic device 1 includes: a fast charging controller 12 and a device Type C female base 11.
  • the fast charging controller 12 can be understood as any circuit capable of realizing fast charging protocol communication, and it can be an MCU, an ASIC, or a fast charging functional module in other integrated chips.
  • the MCU specifically Microcontroller Unit
  • the ASIC specifically Application Specific Integrated Circuit
  • the ASIC can be understood as an application specific integrated circuit.
  • the fast charge controller 12 is used for:
  • the SBU pin or VBUS pin of the device Type C female socket 11 is used to connect with the accessory
  • the corresponding pins of the charger for example, between the SUB1 pin/SBU2 pin of the device Type C female socket 11 and the D+ pin/D- pin of the charger, or the SUB1 pin/SBU2 pin of the device Type C female socket 11 and the charger’s pin
  • Fast charging protocol communication is performed between the SBU1 pin/SBU2 pin, or between the VBUS pin of the device Type C female socket 11 and the VBUS pin of the charger.
  • the specific method of fast protocol communication can be any interactive means in the field to realize fast charging, that is: any fast charging protocol communication method, whether it is an existing method or an improved method, as long as the device Type C female seat
  • any fast charging protocol communication method whether it is an existing method or an improved method, as long as the device Type C female seat
  • the implementation of the SBU pin or the VBUS pin of 11 does not deviate from the description of this embodiment.
  • the fast charge controller 12 can realize fast protocol communication via the SBU pin of the device Type C female socket 11, which can be shown in Figures 1 to 8, for example, or can also realize fast protocol communication via the VBUS pin of the device Type C female socket 11. Protocol communication, which can be as shown in Figure 9 to Figure 11.
  • the SBU pin or VBUS pin of the device Type C female socket can be used to communicate with the D+ and D- pins of the charger for fast charging protocol communication, which breaks through the existing fast charging method using the CC pin for fast charging protocol.
  • the usual idea of communication, and furthermore, when using accessories with audio transmission function, fast charging can also be achieved.
  • the fast charge controller 12 uses the SBU pin of the device Type C female socket 11 to perform fast charge protocol communication, then: the device Type C female socket 11
  • the SBU pin of is connected to the fast charge controller 12 via the switch combination 13. It can control on and off when fast charging protocol communication is needed to meet the communication requirements.
  • the two SBU pins of the device Type C female base 11 are SBU1 and SBU2 respectively, and the SBU1 and SBU2 pins of the device Type C female are connected to one side of the switch assembly 13.
  • the first data pin and the second data pin of the fast charge controller 12 are connected to the other side of the switch combination.
  • the switch combination 13 is used for:
  • the SBU1 pin of the device Type C female socket 11 is connected to the first data pin, and the SBU2 pin of the device Type C female socket is connected to the second data pin, or:
  • the SBU1 pin of the device Type C female socket 11 is connected to the second data pin, and the SBU2 pin of the device Type C female socket is connected to the first data pin.
  • the first data pin and the second data pin may be the RXD pin for receiving signals and the TXD pin for sending signals.
  • the first data pin and the second data pin are also It can be two general-purpose input and output pins, namely GPIO pin, or data SDA pin and clock SCL pin.
  • the SBU pin of the accessory Type C male header is also used. At this time, the SBU pin of the accessory Type C male header cannot be used to transmit audio-related signals.
  • the audio transmission and fast charge protocol communication will require more pins to ensure the realization, and it may even cause the pins to be insufficient for lights. If the digital audio signal is used for transmission, you can In the case of using fewer pins, both audio transmission and fast charging protocol communication are taken into consideration.
  • the DP pin and DM pin of the Type C female base of the device are respectively connected to the DP pin of the Type C male head of the accessory.
  • DM pin; further, the DM pin and DP pin can be used to realize the interaction of audio digital signals.
  • the electronic device may also include a processor 14.
  • the processor 14 is directly or indirectly connected to the DP pin and the DM pin of the device Type C female base 11 to use it to interact with the accessory with digital audio signals.
  • the digital audio signal is matched with an analog audio signal that the accessory interacts with the audio connector.
  • the specific implementation of the audio digital signal in the accessory can be described in detail in the description of the accessory below.
  • the processor can send out digital audio signals generated by internal circuit processing, and can also receive digital audio signals transmitted from accessories.
  • the processor Digital audio signals can be sent and received through the digital signal pins used to receive USB2.0 digital signals.
  • the digital signal pins can be D+ and D- pins.
  • the D+ pin can be used to connect to the DP pin and the D- pin.
  • the above DM pin and DP pin may not be dedicated to the communication of digital audio signals, and furthermore, they need to be switched in a time-sharing manner.
  • one side of the switch assembly 13 is also connected to the DP pin and DM pin of the device Type C female base 11, and the other side of the switch assembly 13 is also connected to the processor 14 for receiving Digital signal pin for USB2.0 digital signal.
  • the switch combination 13 is used for:
  • the pins can communicate with the external time-sharing switch, for example, they can communicate with the audio connector or the charger separately.
  • the DM pin, DP pin, SBU1 pin, and SBU2 pin of the device Type C female can be connected to one or two contacts on the first side of the switch combination, and the D+ pin of the processor’s USB2.0 digital signal , D-pin, TXD pin and RXD pin of fast charge controller 12 can be respectively connected to one or two contacts of the switch combination.
  • Switch combination 13 can realize the above various switching functions by switching the conductive contacts. . Any combination of switches that can realize the above switching function does not depart from the description of this embodiment.
  • the switch assembly 13 may include a first switch S6, a second switch S7, a third switch S8, and a fourth switch S9.
  • the first switch S6 and the second switch S7 are specifically as follows:
  • the first contact on the first side of the first switch S6 is connected to the DP pin of the Type C female socket 11 of the device, and the second contact on the second side is connected to the D+ pin of the USB2.0 digital signal of the processor 14 on the second side.
  • the third contact of the device is connected to the TXD pin of the fast charge controller 12.
  • the first contact on the first side of the second switch S7 is connected to the DM pin of the Type C female socket 11 of the device, and the second contact on the second side is connected to the D- pin of the USB2.0 digital signal of the processor 12, and the second The third contact on the side is connected to the RXD pin of the fast charge controller 12.
  • the DM pin of the device Type C female socket 11 can be connected to the second contact.
  • the connection of the D pin of the processor 14, when the second switch S7 is switched to its first contact to conduct the third contact, the DM pin of the device Type C female socket 11 and the RXD of the fast charge controller 12 can be realized Foot connection
  • first switch S6 and second switch S7 can form two single-pole double-throw switches.
  • the third switch S8 and the fourth switch S9 are specifically as follows:
  • the first contact on the first side of the third switch S8 is connected to the SBU1 pin of the device Type C female socket 11, the second contact is connected to the SBU2 pin of the device Type C female socket 11, and the third contact on the second side is connected to the fast charge The TXD pin of the controller 12; when the third switch S8 is switched to its first contact to conduct the third contact, the SBU1 pin of the device Type C female socket 11 is connected to the TXD pin of the fast charge controller 12, When the three-switch S8 is switched to its second contact to turn on the third contact, the SBU2 pin of the device Type C female socket 11 is connected to the TXD pin of the fast charge controller 12;
  • the first contact on the first side of the fourth switch S9 is connected to the SBU1 pin of the device Type C female base 11, the second contact is connected to the SBU2 pin of the device Type C female base 11, and the third contact on the second side is connected to the fast charge The RXD pin of the controller 12; when the fourth switch S9 is switched to its first contact to conduct the third contact, the SBU1 pin of the device Type C female socket 11 is connected to the RXD pin of the fast charge controller 12, When the four-switch S9 is switched to its second contact to turn on the third contact, the SBU2 pin of the device Type C female base 11 is connected to the RXD pin of the fast charge controller 12;
  • the third switch S8 and the fourth switch S9 can form a cross connection or a non-cross connection to realize the required connection channel.
  • the first switch S6 and the second switch S7 are provided with one contact on the first side and two contacts on the second side. In other examples, it can also be on the first side. There are two contacts and one contact on the second side.
  • the third switch S8 and the fourth switch S9 are provided with two contacts on the first side. One contact is provided on the second side. In other examples, one contact is provided on the first side and two contacts are provided on the second side. In addition, it is not ruled out that the diverter switches share some contacts.
  • the electronic device may also include a current source and a voltage detection module, and the current source is connected to the SBU pin of the device Type C female base through the switch combination , Used to output current to the SBU pin;
  • the voltage detection module is directly or indirectly connected to the SBU pin of the device Type C female socket 11 to detect the voltage information of the SBU pin, so that the external impedance of the SBU pin of the device Type C female socket 11 can be based on the The voltage information is determined.
  • the voltage detection module can be connected to the processor to feed back the voltage information to the processor so that it can determine the external impedance of the SBU1 pin and SBU2 pin of the device Type C socket.
  • the current source can be connected to the SBU pin by using a switch other than the above switch, or it can be implemented in combination with the switch combination 13 above.
  • the current source is connected to the third switch S8 and/or the third switch S9. Contacts.
  • the pull-down resistance value of the D+ and D- pins of the charger or the short circuit between D+ and D- can be detected and judged, so that the charger and the charging circuit Make preparations for the fast charging protocol for communication.
  • the electronic device 1 may further include a power management module 15, and the power management module 15 is connected to the VBUS pin of the device Type C female base 11.
  • the CC pin of the device Type C female socket 11 is connected to the CC pin of the accessory Type C male connector of the accessory 2; the device Type C female socket
  • the CC pin of the device is connected to the processor 14, and the processor 14 is configured to determine the external connection state of the accessory according to the signal of the CC pin of the device Type C female base 11.
  • the external connection state may include the first connection state in which the audio connector is connected to the accessory, but the charger is not connected to the accessory, and the external connection state is the first connection state in which the charger is connected to the accessory.
  • Second connection state is the first connection state in which the charger is connected to the accessory.
  • the processor 14 is further configured to instruct the power management module 15 to use the VBUS pin of the device Type C female socket 11 to supply power to the accessory;
  • the processor 14 is further configured to instruct the power management module 15 to use the VBUS pin of the device Type C female base 11 to receive charging.
  • the external connection state may also include, for example, a third connection state in which neither the audio connector 3 nor the charger 4 is connected, and a fourth connection state in which the charger 4 is connected but the audio connector 3 is not connected.
  • the power management module 15 can be respectively connected to the VBUS pin 11 of the processor 14 and the device Type C female socket 11, and at the same time, the processor 14 can use the CC pin of the USB PD module to connect to the CC pin of the device Type C female socket 11.
  • the CC in the CC feet mentioned above specifically refers to the Configuration Channel, which can be understood as the configuration channel of the Type C interface, and is usually used to support the identification of USB devices and cables and related communication judgments.
  • the power management module 15 can be characterized as: Power Management, which can be understood as a circuit module that connects to the power supply of electronic devices and can control the input and output of the power supply. It can be independent of the processor 14 and/or fast charging The modules of the controller 12 may also be integrated into the modules of the processor 14 and/or the fast charge controller 12.
  • this embodiment also provides an accessory 2 with both fast charging and audio transmission functions, including: accessory Type C female socket 23 for connecting the charger 4, accessory Type C male connector 21, and The audio interface 22 is connected to the audio connector 22; the accessory Type C male connector 21 is used to connect the device Type C female connector 11 of the electronic device 1 involved in the above optional solution.
  • the SBU pin of the accessory Type C male connector 21 can be used to connect the SUB pin of the device Type C female connector, specifically: the SBU1 pin of the accessory Type C male connector 21 connects to the SUB1 pin of the device Type C female connector, and the accessory Type C male connector
  • the SBU2 pin of 21 is connected to the SUB2 pin of the Type C female socket of the device.
  • the SBU1 and SBU2 pins of the accessory Type C male header 21 are respectively connected to the DP and DM pins of the accessory Type C female socket 23, and the charger 4 is connected to the socket.
  • the DP pin and the DM pin of the accessory Type C female seat 23 are respectively connected to the D+ pin and the D- pin of the charger.
  • the SBU1 and SBU2 pins of the accessory Type C male header 21 are respectively connected to the SBU1 and SBU2 pins of the accessory Type C female socket 23, and the charger 4 is connected to
  • the SBU1 pin and the SBU2 pin of the accessory Type C female base 23 are connected to the SBUE1 pin and the SBU2 pin of the charger 4, respectively.
  • the audio signal in the accessory can be transmitted in the form of an analog audio signal, so as to interact with the electronic device through the analog audio signal.
  • the accessory 2 also includes an audio processing module 24.
  • the audio processing module 24 may be characterized as an Audio ASIC, which may be a circuit module capable of performing analog-to-digital and digital-to-analog conversion on analog audio signals.
  • the three signal transmission pins of the audio processing module 24 are respectively connected to the left channel pin, the right channel pin and the microphone pin in the audio interface; the audio processing module 24 is also connected to the accessory Type C male DP pin and DM pin of head 21;
  • the audio processing module 24 is used for:
  • the DP pin and the DM pin of the accessory Type C male header interact with digital audio signals with the connected electronic device 1; specifically, it can interact with the DP pin and the DM pin in the device Type C female socket 11;
  • the conversion between the digital audio signal and the analog audio signal is performed.
  • the power supply of the audio processing module 24 can be realized by using energy storage components in the accessories, and the power supply of the audio processing module 24 can also be realized by using the electronic device 1 and the charger 4, and further, the charger 4 can be connected to the power supply.
  • the charger 4 is used to supply power at the time, and the electronic device 1 is used to supply power when the electronic device 1 is connected.
  • the first detection pin and the second detection pin of the audio processing module 24 are also connected to the audio interface, and the first detection pin and the second detection pin can be completely connected to the audio connector.
  • the first detection pin is connected to the CC pin of the Type C male connector of the accessory.
  • the two detection tubes may be, for example, the DET1 pin and the DET2 pin shown in FIG. 8.
  • the first detection pin and the second detection pin are short And can pull the CC pin of the accessory Type C male header 21 to the first level to instruct the electronic device connected to the accessory to directly or indirectly supply power to the audio processing module; taking FIG. 8 as an example, because The DET1 pin and DET2 pin are short-connected, which can pull down the potential of both when the second switch S2 is turned on. Because the DET1 pin is connected to the CC pin via a resistor, the CC pin's potential can also be pulled down together. In other examples, It also does not rule out the implementation of pulling it up.
  • the audio processing module 24 can be powered by the charger.
  • the accessory 2 may also include a control module 25; the control module 25 may be an existing control in the accessory
  • the module can also be a separately configured control module.
  • the power supply pin of the control module is connected to the VBUS pin of the accessory Type C female base 23 so as to be powered by the charger 4 when the charger 4 is connected to the accessory Type C female base 23.
  • control module 25 is also used to:
  • the second level may be a pull-up level, and in other examples, it may also be a pull-down level.
  • the level of the CC pin of the accessory Type C male header 21 can also be pulled to the corresponding potential, so that the processor can learn the external connection of the accessory Status, thereby controlling the power management module 15 according to the aforementioned content.
  • the accessory 2 may also include: a first switch S1, a second switch S2, a third switch S3, a fourth switch S4, and a low-dropout linear stability ⁇ LDO.
  • the first switch S1 is connected between the first detection pin and the second detection pin, and the first switch S1 can be turned on when the audio connector 3 is fully connected to the audio interface 22;
  • the second switch S2 is connected between the second detection pin and the ground, and a resistance unit is also connected in parallel at both ends of the second switch.
  • the resistance unit may, for example, include the resistance R6 shown in FIG. 8;
  • the three switch S3 is connected between the VBUS pin of the accessory Type C female seat 23 and the VBUS pin of the accessory Type C male connector 21; the CC pin of the accessory Type C male connector 21 is connected to the fourth switch S4
  • a resistance unit is connected to the VBUS pin of the accessory Type C male header 21.
  • the resistance unit may include, for example, the resistor R3 shown in FIG. 8, and the VBUS pin of the accessory Type C male header 21 is also linearly stabilized by the low dropout voltage.
  • the LDO provides power for the audio processing module 24;
  • control module 25 When the control module 25 pulls the CC pin of the accessory Type C male connector to the second level, it is specifically configured to: control the second switch S2 to turn off, and control the third switch S3 and the The fourth switch S4 is turned on.
  • FIG. 8 can be understood as an example based on the above-mentioned electronic equipment and accessories.
  • the first switch S1 can be closed; the audio interface can be connected with a normally closed (NC) second switch S2 and S2 is connected in parallel with a resistor R6.
  • the resistance of the resistor R6 can be 2M ohms or other larger values.
  • a 5.1K ohm resistor R3 is connected between the DET1 pin and the CC pin (which can be the CC2 pin as shown in Figure 8 or the CC1 pin).
  • the accessory Type C male header 21 is equipped with 56K ohm resistors R4 and R5, and the CC1 and CC2 feet of the accessory Type C male header 21 are pulled up through the fourth switch S4 and the fourth switch S5, which are disconnected by default. To the VBUS pin.
  • the VBUS pin of the accessory Type C female connector 23 near the charger is connected to the VBUS pin of the accessory Type C male connector 21 through the third switch S3 with current limiting function.
  • the CC1 and CC2 pins of the accessory Type C female seat 23 near the charger are pulled down by two 5.1K ohm resistors R1 and R2 respectively to ensure that the charger and the USB Type C cable are plugged in (regardless of whether it is plugged in or not)
  • the accessory can itself be defined as a USB charged device, so that the VBUS pin of the accessory Type C female seat 23 can get a standard 5V power supply from the charger.
  • the control module shown in Figure 8 can be composed of some discrete circuits, or a single-chip system (for example: LDO+MCU) to achieve related control functions. Its function is mainly to control the second switch S2 and the third switch. The switch S3, the fourth switch S4 and the fourth switch S5 are turned on and off.
  • the first switch S1 may be, for example, a spring switch that comes with the audio interface 22 of the headphone jack, which is usually in the off state ( Normally open: NO), the action of inserting the earphone in place will turn on the first switch S1, and then short the DET1 pin and DET2 pin;
  • the second switch S2 can be a normally closed switch (NC) or a switch similar to the normally closed function
  • the second switch S2 will be turned on Status, so that the CC2 pin of the accessory Type C male header 21 is pulled down to the ground through a 5.1K ohm resistor, so that the audio connector (or understood as earphone) + audio interface + audio processing module 24 + low dropout linear regulator LDO is the part of the circuit Electronic device 1 claims that it is a
  • the charger When the charger is connected to provide charging, the VBUS pin of the accessory Type C female seat 23 of accessory 2 will be energized. At this time, the third switch S3 can be turned on and the second switch S2 can be turned off through the control module. And the fourth switch S5 is turned on (or the fourth switch S5 and the fourth switch S4 are turned on together).
  • the charger can supply power to the electronic equipment and the low-dropout linear regulator LDO+audio processing module 24 part, and also through the pull-up of the CC2 pin (disconnect the second switch S2 and turn on the fourth switch S5)
  • the electronic device claims that the charger is plugged in (the fourth switch S4, which is disconnected by default, can be reserved.
  • the CC1 and CC2 pins of some brands of USB cables (Type AC) will pull up a 56K ohm resistor to VBUS.
  • the S4 switch is reserved for adapting to this type of cable).
  • the VBUS power supply of the accessory Type C female seat 23 of the accessory 2 will be removed, and then the control module 25 will lose power, so that the second switch S2 returns to the default conducting or ready to conducting state (Among them, if the earphone is inserted to cooperate with pin CC2, it can be turned on), the third switch S3, the fourth switch S5, and the fourth switch S4 return to the default off state.
  • the electronic device shown in FIG. 8 may be a portable device, which is specifically a Portable Device.
  • the power management module can be used to manage external power supply (for example, when only the headset is plugged in, the electronic device turns into the main device to supply power to the accessory) and the charger or fast charger to charge the electronic device.
  • the first The switch S6 and the second switch S7 can form a two-way single-pole double-throw switch, which can transfer the internal USB2.0 digital signal (D+/D-) of the electronic device and the digital transceiver signal (RXD pin/TXD pin) of the fast charge control controller.
  • the third switch S8 and the fourth switch S9 in the switch combination circuit can form two cross-connected or non-cross-connected switches to realize SBU1 connected to the TXD pin of the fast charge controller 12 and SBU2 to the RXD pin of the fast charge controller 12
  • SBU1 is connected to the RXD pin of the fast charge controller
  • SBU2 is connected to the TXD pin of the fast charge controller 12.
  • the TXD and RXD pins can also be used as two general-purpose input and output of the MCU or ASIC of the fast charge controller 12 Pin (GPIO) or data SDA and clock SCL pin.
  • the combination of the third switch S8 and the fourth switch S9 connected to the SBU1 pin and the SBU2 pin can also have the function of performing impedance detection through the current source, so that the SBU1 and SBU2 pins can be connected to the D+ of the charger via the accessory shown in Figure 8.
  • the system composed of accessories and electronic device related components creatively uses the SBU1 and SBU2 of the device Type C female base 11 of the electronic device 1 to follow the accessories Type C female base 23 of the accessory 2 side.
  • DP_T/DP_B and DM_T/DM_B (these two pins can finally be connected to the D+ and D- pins of the charger) two signals are connected separately, so that electronic devices such as smart phones can connect to the charger through the SBU1 pin and SBU2 pin.
  • the D+ and D- pins carry out fast charging protocol communication, so that the matched fast charging charger can fast charge the portable device.
  • the current very mainstream fast charging protocols such as Huawei's SCP/FCP, Oppo's VOOC/Super VOOC, and Vivo's private fast charging protocols all communicate via USB D+/D- pins. Furthermore, the accessory and the electronic device of this embodiment are quickly charged while realizing audio interaction.
  • the fast charge controller can be used to connect the accessory 2 to the device Type C female base 11, and the charger 4 is connected
  • the VBUS pin of the device Type C female base 11 and the D+ pin and D- pin of the charger 4 connected via the accessory 2 are used for fast charging protocol communication.
  • the fast charge controller 12 can be directly or indirectly connected to the VBUS pin of the Type C female socket 11 on the device side.
  • the accessories may also include a modulation module 26; the modulation module 26 is connected to the VBUS pin of the accessory Type C male header 21, and the modulation module 26 is used to connect the accessory Type C male header 21 to the VBUS pin.
  • the VBUS pin of the C male head generates a modulated digital signal to use the modulated digital signal to perform the fast charging protocol communication.
  • the modulating module can also be indirectly connected to the D+ pin and D- pin of the charger.
  • the modulation module 26 is respectively connected to the DM pin and DP pin of the accessory Type C female base 23, and the DM pin and DP pin of the accessory Type C female base 23 are respectively connected to the D+ pin of the charger With D-foot;
  • the modulation module 26 may also be connected to the SBU1 and SBU2 pins of the accessory Type C female base 23, respectively, and the SBU1 and SBU2 pins of the accessory Type C female base 23 are respectively connected to the charger The D+ foot and D- foot.
  • the digital signal modulated on the VBUS power supply pin is used for rapid charging protocol communication, and then rapid charging is realized while audio interaction is realized.
  • the digital audio signal mentioned above can be used for audio interaction, and then the audio processing module and its corresponding circuit configuration as shown in FIG. 7 and FIG. 8 are adopted.
  • an analog audio signal can also be used for audio interaction circuit structure, which can be as shown in FIG. 11.
  • this embodiment does not exclude the use of this circuit configuration in the embodiment shown in FIG. 1.
  • an audio codec 16 connected to the device Type C female base via the switch assembly 13 may be configured.
  • the audio interface can be, for example, a 3.5mm headphone jack, which can support left and right channels R and L.
  • the audio connector can be connected to the RING1 and TIP pins of the headphone jack, and the microphone channel MIC is connected to the audio interface.
  • RING2 pin or SLEEVE pin, audio ground AGND is connected to the SLEEVE pin or RING2 pin of the audio interface, and the insertion detection can be passed when the first switch S1, which is a normally open switch, between DET1 and DET2 is turned on due to the earphone insertion.
  • the CC1 and CC2 pins of the accessory Type C male head 21 are pulled down to the ground so that the electronic device 1 such as a smart phone can detect the insertion of an analog headset.
  • the front and back insertion detection of the MIC of analog earphones and the switching of crossover or non-crossover can usually be done inside the smart phone, so it is suitable whether the RING2 pin of the audio interface of the 3.5mm headphone jack or the SLEEVE pin is connected to the MIC. It is matched to the MIC pin of the audio codec 16 inside the electronic device (the same is true for AGND).
  • the DP_T pin of the Type C male head is equivalent to the DP_B pin when the male head is turned 180° (DM_T and DM_B are the same), so the DP_T and DP_B are short-circuited (Type C specification It is also named Dp1), and DM_T and DM_B are short-circuited (also named Dn1 in the Type C specification) to ensure that the male connector of the USB Type C cable or accessory is connected to the female connector of the electronic device.
  • the CC1 pin and CC2 pin of the accessory Type C male connector are shorted and then connected to the DET pin (DET pin is connected to the DET1 pin of the earphone interface), the DET2 pin of the audio interface is connected to the digital ground GND, and the DET1 pin of the audio interface There is a normally open switch (NO) between the DET2 pin and the first switch S1.
  • NO normally open switch
  • the audio signal R can be connected (R connects to the RING1 pin of the earphone interface), and the DM_T pin and DM_B pin are shorted to connect the audio signal L (L connects to the TIP of the earphone interface)
  • the SBU1 and SBU2 pins of the accessory Type C male connector are connected to the MIC/AGND pin (the RING2 pin of the earphone jack) and the AGND/MIC pin (the SLEEVE pin of the earphone jack), and the accessory Type C male pin 21
  • the VBUS pin of the accessory is connected to the VBUS pin of the accessory Type C female socket 23 that supports charger access, and the CC1 and CC2 pins of the accessory Type C female socket 23 are pulled down to the ground through a 5.1K resistor to insert the accessory and connect the charger
  • the male end of the Type C cable has a 5.1K resistor to pull down the CC pin in the cable regardless of whether it is plugged in or reverse
  • the device Type C female connector 11 is used to connect with the accessory Type C male connector 23 of the accessory 2, that is, to the VBUS pin, CC1 pin, CC2 pin, DP_T pin/DP_B pin, DM_T pin/DM_B
  • the corresponding electrical connection of the pin, SBU1 pin, SBU2 pin and GND, the voltage received through the VBUS pin of the device Type C female socket 11 can be used to charge the electronic device through the power management module 15.
  • the CC1 pin and CC2 pin are connected to the USB PD component for Identify the insertion of the analog headset on the accessory side
  • DP_T pin/DP_B pin and DM_T pin/DM_B pin are respectively connected to the audio channel R and L on the accessory side
  • the switch combination 13 is used as the first switch of the single-pole double-throw switch
  • the switch S6 and the second switch S7 can connect the R and L channel pins of the audio codec to DP_T pin/DP_B pin and DM_T pin/DM_B pin respectively when the electronic device detects that the analog earphone is inserted, otherwise DP_T pin/DP_B Pin and DM_T pin/DM_B pin can be connected to the D+ pin and D- pin of the processor's USB2.0; SBU1 pin and SBU2 pin are respectively connected to the MIC pin/AGND and AGND/MIC pin on the accessory side.
  • switch assembly 13 The third switch S8 and the fourth switch S9, which are single-pole double-throw switches, form two switches that support cross-connect or non-cross-connect to realize SBU1 connected to the MIC pin of the audio codec 16 and SBU2 to the audio codec
  • the AGND pin of 16 or the AGND pin of SBU1 connected to the audio codec 16 and the MIC pin of SBU2 connected to the audio codec 16 to ensure that the MIC pin of the analog headset is accurately connected to the MIC pin of the audio codec 16 in the electronic device and The AGND pin of the analog headset is accurately connected to the AGND pin of the audio codec 16 in the electronic device.
  • the impedance detection function of the SBU1 and SBU2 pins can be used to simulate the MIC and AGND of the headset and the MIC and GND of the audio codec 16 The judgment of whether the connection is reversed or not.
  • the digital ground GND of the portable device is directly connected to the digital ground GND of the left accessory.
  • the electronic equipment can use the SBU pin of the device Type C female base and the D+ and D- pins of the charger to perform a fast charging protocol.
  • Communication which breaks through the conventional idea of using the CC pin for fast charging protocol communication in the existing fast charging methods, and furthermore, when using accessories with audio transmission functions, fast charging can also be realized.
  • the required pins can be saved, and the use of the SBU pins in the fast charge protocol communication can be guaranteed.

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Abstract

本发明提供了一种电子设备与兼具快充与音频传输功能的配件，所述电子设备能够经配件分别连接充电器与音频接头，所述电子设备包括：快充控制器与设备Type C母座；所述快充控制器用于：在所述配件接入所述设备Type C母座，且所述充电器连接所述配件时，利用所述设备Type C母座的SBU脚与经配件所连接的充电器的D+脚与D-脚进行快充协议通信。本发明突破了现有的快速充电方式中利用CC脚进行快充协议通信的惯常思路，进而，在使用兼具音频传输功能的配件时，还可实现快速充电。

Description

电子设备与兼具快充与音频传输功能的配件 技术领域
本发明涉及充电领域，尤其涉及一种电子设备与兼具快充与音频传输功能的配件。
背景技术
在例如智能手机、平板电脑、智能相机等电子设备中，出于减少对外的接口、降低接口占用空间等目的，通常会省去专用于连接音频接头的音频接口(例如3.5mm耳机接口)。进而，音频信号传输功能与充电功能均需从Type C接口实现。
然而，由于充电器与音频接头无法同时接入，无法同时使用音频信号传输功能与充电功能，此时，需要使用Type C公头转Type C母座与音频接口的配件。
现有相关技术中，该配件与电子设备对接后，需使用配件中Type C公头的CC脚与电子设备中Type C母座的CC脚的信号传输来识别配件中是否接入音频接头和/或充电器。然而，在电子设备中，快充的协议通信通常也是利用CC脚来实现的，在CC脚已经被占用的情况下，则无法实现快充的协议通信。可见，在使用兼具充电与音频传输功能的配件时，无法实现快速充电。
发明内容
本发明提供一种电子设备与兼具快充与音频传输功能的配件，以解决在使用兼具充电与音频传输功能的配件时，无法实现快速充电的问题。
根据本发明的第一方面，提供了一种电子设备，所述电子设备能够经配件分别连接充电器与音频接头，所述电子设备包括：快充控制器与设备Type C母座；
所述快充控制器用于：
在所述配件接入所述设备Type C母座，且所述充电器连接所述配件时， 利用所述设备Type C母座的SBU脚与经配件所连接的充电器的相应管脚进行快充协议通信。
可选的，所述设备Type C母座的SBU脚经开关组合连接所述快充控制器。
可选的，所述设备Type C母座的两个SBU脚分别为其SBU1脚与SBU2脚，所述设备Type C母座的SBU1脚与SBU2脚连接所述开关组合的一侧，所述快充控制器的第一数据脚与第二数据脚连接所述开关组合的另一侧；
所述开关组合用于：
将所述设备Type C母座与所述快充控制器的连通方式切换为：
所述设备Type C母座的SBU1脚连接第一数据脚，所述设备Type C母座的SBU2脚连接第二数据脚，或者：
所述设备Type C母座的SBU1脚连接第二数据脚，所述设备Type C母座的SBU2脚连接第一数据脚。
可选的，所述的电子设备，还包括处理器，在所述配件接入所述设备Type C母座时，所述设备Type C母座的DP脚与DM脚分别连接所述配件的配件Type C公头的DP脚与DM脚；
所述处理器直接或间接连接所述设备Type C母座的DP脚与DM脚，以利用其与所述配件交互数字音频信号，所述数字音频信号匹配于所述配件与所述音频接头交互的模拟音频信号。
可选的，所述开关组合一侧还分别连接所述设备Type C母座的DP脚与DM脚，所述开关组合的另一侧还连接所述处理器的用于接收USB2.0数字信号的数字信号管脚；
所述开关组合用于：
将所述设备Type C母座的DP脚切换至连接所述快充控制器或所述处理器；
将所述设备Type C母座的DM脚切换至连接所述快充控制器或所述处理器。
可选的，所述的电子设备，还包括电流源与电压检测模块，所述电流源经所述开关组合连接所述设备Type C母座的SBU脚，用于向该SBU脚输出电流；
所述电压检测模块直接或间接连接所述设备Type C母座的SBU脚，以检测该SBU脚的电压信息，以使得所述设备Type C母座的SBU脚的对外阻抗能够根据所述电压信息被确定。
可选的，所述的电子设备，还包括电源管理模块，所述电源管理模块连接所述设备Type C母座的VBUS脚；
在所述配件接入所述设备Type C母座时，所述设备Type C母座的CC脚连接所述配件的配件Type C公头的CC脚；所述设备Type C母座的CC脚连接处理器，所述处理器用于根据该所述设备Type C母座的CC脚的信号确定所述配件的对外连接状态；所述对外连接状态包括所述音频接头接入所述配件，但所述充电器未接入所述配件的第一连接状态，以及所述对外连接状态为所述充电器接入所述配件的第二连接状态；
若所述对外连接状态为所述第一连接状态，则所述处理器还用于指示所述电源管理模块利用所述设备Type C母座的VBUS脚向所述配件供电；
若所述对外连接状态为所述第二连接状态，则所述处理器还用于指示所述电源管理模块利用所述设备Type C母座的VBUS脚接收充电。
根据本发明的第二方面，提供了一种兼具快充与音频传输功能的配件，包括：用于连接充电器的配件Type C母座、配件Type C公头，以及用于连接音频接头的音频接口；所述配件Type C公头用于连接第一方面及其可选方案涉及的电子设备中的设备Type C母座。
可选的，所述配件Type C公头的SBU脚包括所述配件Type C公头的SBU1脚与SBU2脚；
所述配件Type C公头的SBU1脚与SBU2脚分别连接所述配件Type C母座的DP脚与DM脚，所述充电器接入所述配件Type C母座时，所述配件Type C母座的DP脚与DM脚分别连接所述充电器的D+脚与D-脚；
或者：
所述配件Type C公头的SBU1脚与SBU2脚分别连接所述配件Type C母座的SBU1脚与SBU2脚，所述充电器接入所述配件Type C母座时，所述配件Type C母座的SBU1脚与SBU2脚分别连接所述充电器的SBU1脚与SBU2脚。
可选的，所述的配件，还包括音频处理模块；
所述音频处理模块的三个信号传输脚分别连接所述音频接口中的左声道管脚、右声道管脚与麦克风管脚；所述音频处理模块还连接所述配件Type C公头的DP脚与DM脚；
所述音频处理模块用于：
通过所述配件Type C公头的DP脚与DM脚与所连接的电子设备交互数字音频信号；
通过所述三个信号传输脚与所述音频接头交互模拟音频信号，以及：
进行所述数字音频信号与所述模拟音频信号之间的转换。
可选的，所述音频处理模块的第一检测管脚与第二检测管脚也连接至所述音频接口，且所述第一检测管脚与所述第二检测管脚能够在所述音频接头完全接入所述音频接口时短接，所述第一检测管脚连接至所述配件Type C公头的CC脚；
在所述音频接头完全接入所述音频接口，但所述充电器未接入所述配件Type C母座时，所述第一检测管脚与所述第二检测管脚短接，并能够将所述配件Type C公头的CC脚拉至第一电平，以指示连接所述配件的电子设备直接或间接向所述音频处理模块供电；
在所述充电器接入所述配件Type C母座时，所述音频处理模块能够被所述充电器供电。
可选的，所述的配件，还包括控制模块；所述控制模块的供电脚连接所述配件Type C母座的VBUS脚，以在所述充电器接入所述配件Type C母座时，被所述充电器供电；
所述控制模块在所述充电器接入所述配件Type C母座时，还用于：
将所述配件Type C公头的CC脚拉至第二电平，以指示连接所述配件的电子设备利用其设备VBUS脚接收充电。
可选的，所述的配件，还包括：第一开关、第二开关、第三开关、第四开关与低压差线性稳压器；
所述第一开关连接于所述第一检测脚与所述第二检测脚之间，所述第一开关能够在所述音频接头完全接入所述音频接口时导通；所述第二开关连接于所述第二检测脚与地之间，所述第二开关的两端还并联有一个电阻单元；所述第三开关连接于所述配件Type C母座的VBUS脚与所述配件Type C公 头的VBUS脚之间；所述配件Type C公头的CC脚经所述第四开关与一电阻单元连接所述配件Type C公头的VBUS脚，所述配件Type C公头的VBUS脚还经所述低压差线性稳压器为所述音频处理模块供电；
所述控制模块在将所述配件Type C公头的CC脚拉至第二电平时，具体用于：控制所述第二开关关断，以及：控制所述第三开关与所述第四开关导通。
可选的，若所述快充控制器是利用所述设备Type C母座的VBUS脚进行快充协议通信的，则需要接入配件的充电器支持通过VBUS脚进行快充通信的能力，配件只需负责VBUS脚从母座到公头的连通即可。
本发明提供的电子设备与兼具快充与音频传输功能的配件中，电子设备能够利用设备Type C母座的SBU脚与充电器的D+脚与D-脚进行快充协议通信，其突破了现有的快速充电方式中利用CC脚进行快充协议通信的惯常思路，进而，在使用兼具音频传输功能的配件时，还可实现快速充电。进一步可选方案中，通过数字音频信号的交互，能节约所需使用的管脚，保障快充协议通信对SBU脚的使用。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例中电子设备的构造示意图一；
图2是本发明一实施例中电子设备的构造示意图二；
图3是本发明一实施例中电子设备的构造示意图三；
图4是本发明一实施例中配件与电子设备的构造示意图一；
图5是本发明一实施例中配件与电子设备的构造示意图二；
图6是本发明一实施例中配件与电子设备的构造示意图三；
图7是本发明一实施例中配件与电子设备的构造示意图四；
图8是本发明一实施例中配件与电子设备的电路示意图；
图9是本发明另一实施例中电子设备的构造示意图；
图10是本发明另一实施例中配件与电子设备的构造示意图；
图11是本发明另一实施例中配件与电子设备的电路示意图。
附图标记名称：
1-电子设备；
11-设备Type C母座；
12-快充控制器；
13-开关组合；
14-处理器；
15-电源管理模块；
16-音频编译码器；
2-配件；
21-配件Type C公头；
22-音频接口；
23-配件Type C母座；
24-音频处理模块；
25-控制模块；
26-调制模块；
3-音频接头；
4-充电器；
S1-第一开关；
S2-第二开关；
S3-第三开关；
S4、S5-第四开关；
S6-第一切换开关；
S7-第二切换开关；
S8-第三切换开关；
S9-第四切换开关；
LDO-低压差线性稳压器；
R1、R2、R3、R4、R5、R6-电阻。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
下面以具体地实施例对本发明的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
请参考图1，所述电子设备1能够经配件2分别连接充电器4与音频接头3，所述电子设备1包括：快充控制器12与设备Type C母座11。
所述快充控制器12，可理解为能够实现快充协议通信的任意电路，其可以是MCU，也可以是ASIC，还可以是其他集成芯片中的快充功能模块。
其中的MCU，具体为Microcontroller Unit，可理解为微控制单元、微控制器、微处理器等等。其中的ASIC，具体为Application Specific Integrated Circuit，可理解为专用集成电路。
本实施例中，所述快充控制器12，用于：
在所述配件2接入所述设备Type C母座11，且所述充电器4连接所述配件2时，利用所述设备Type C母座11的SBU脚或VBUS脚与经配件所连接的充电器的相应管脚(例如设备Type C母座11的SUB1脚/SBU2脚与充电器的D+脚/D-脚之间，或者设备Type C母座11的SUB1脚/SBU2脚与充电器的SBU1脚/SBU2脚之间，又或者设备Type C母座11的VBUS脚与充 电器的VBUS脚之间)进行快充协议通信。
其中，进行快速协议通信的具体方式，可采用本领域任意实现快速充电的交互手段，即：任意快充协议通信的方式，不论是已有的方式还是改进的方式，只要经由设备Type C母座11的SBU脚或VBUS脚实施的，均不脱离本实施例的描述。
可见，所述快充控制器12可经由设备Type C母座11的SBU脚实现快速协议通信，其可例如图1至图8所示，也可经由设备Type C母座11的VBUS脚实现快速协议通信，其可如图9至图11所示。
以上方案中，能够利用设备Type C母座的SBU脚或VBUS脚与充电器的D+脚与D-脚进行快充协议通信，其突破了现有的快速充电方式中利用CC脚进行快充协议通信的惯常思路，进而，在使用兼具音频传输功能的配件时，还可实现快速充电。
请参考图2，其中一种实施方式中，若所述快充控制器12是利用所述设备Type C母座11的SBU脚进行快充协议通信的，则：所述设备Type C母座11的SBU脚经开关组合13连接所述快充控制器12。其可在需要需要快充协议通信时控制通断，以达到通信的需求。
具体的，所述设备Type C母座11的两个SBU脚分别为其SBU1脚与SBU2脚，所述设备Type C母座的SBU1脚与SBU2脚连接所述开关组合13的一侧，所述快充控制器12的第一数据脚与第二数据脚连接所述开关组合的另一侧。
所述开关组合13用于：
将所述设备Type C母座11与所述快充控制器12的连通方式切换为：
所述设备Type C母座11的SBU1脚连接第一数据脚，所述设备Type C母座的SBU2脚连接第二数据脚，或者：
所述设备Type C母座11的SBU1脚连接第二数据脚，所述设备Type C母座的SBU2脚连接第一数据脚。
一种举例中，如图8所示，其中的第一数据脚与第二数据脚可以是接收信号的RXD脚与发出信号的TXD脚，其他举例中，第一数据脚与第二数据脚也可以是两个通用输入输出脚，即GPIO脚，还可以是数据SDA脚和时钟SCL脚。
在利用SBU脚进行快充协议通信的情况下，配件中配件Type C公头的SBU脚也即被使用，此时，配件Type C公头的SBU脚无法被用于传输音频相关信号，此时，在配件中，若以模拟音频信号传输，则音频传输与快充协议通信会需要更多的管脚来保障实现，甚至可能造成管脚不够用灯情形，若以数字音频信号传输，则可在使用较少管脚的情况下兼顾音频传输与快充协议通信。
其中一种实施方式中，在所述配件接入所述设备Type C母座时，所述设备Type C母座的DP脚与DM脚分别连接所述配件的配件Type C公头的DP脚与DM脚；进而，可利用DM脚与DP脚实现音频数字信号的交互。
所述的电子设备，还可包括处理器14。
所述处理器14直接或间接连接所述设备Type C母座11的DP脚与DM脚，以利用其与所述配件交互数字音频信号。
所述数字音频信号匹配于所述配件与所述音频接头交互的模拟音频信号。有关音频数字信号在配件中的具体实现方式，可在后文有关配件的描述中具体阐述。
通过以上通路，可实现数字音频信号的交互，处理器可发出内部电路处理产生的数字音频信号，也可以接收自配件传输而来的数字音频信号，其中，如图8所示，所述处理器可通过用于接收USB2.0数字信号的数字信号管脚来收发数字音频信号，其中的数字信号管脚具体可以为D+脚与D-脚，其中的D+脚可用于连接DP脚，D-脚可用于连接DM脚。
同时，以上DM脚与DP脚，也可并非专用于数字音频信号的沟通，进而，需要对其进行分时切换。
具体实施过程中，所述开关组合13一侧还分别连接所述设备Type C母座11的DP脚与DM脚，所述开关组合13的另一侧还连接所述处理器14的用于接收USB2.0数字信号的数字信号管脚。
所述开关组合13用于：
将所述设备Type C母座的DP脚切换至连接所述快充控制器或所述处理器；
将所述设备Type C母座的DM脚切换至连接所述快充控制器或所述处理器。
进而，通过以上过程，可实现管脚对外分时切换进行沟通，例如可分别单独实现与音频接头或充电器进行通信。
具体实施过程中，设备Type C母座的DM脚、DP脚、SBU1脚、SBU2脚可分别连接至开关组合第一侧的一个或两个触点，处理器的USB2.0数字信号的D+脚、D-脚、快充控制器12的TXD脚与RXD脚，可以分别连接至开关组合的一个或两个触点，开关组合13可通过切换所导通的触点来实现以上各种切换功能。任意可实现以上切换功能的开关组合，均不脱离本实施例的描述。
在图8所举例的构造中，开关组合13可包括第一切换开关S6、第二切换开关S7、第三切换开关S8与第四切换开关S9。
有关其中的第一切换开关S6与第二切换开关S7，具体为：
第一切换开关S6的第一侧的第一触点连接设备Type C母座11的DP脚，第二侧的第二触点连接处理器14的USB2.0数字信号的D+脚，第二侧的第三触点连接快充控制器12的TXD脚，当第一切换开关S6被切换为其第一触点导通第二触点时，可实现设备Type C母座11的DP脚与处理器14的D+脚的连接，当第一切换开关被切换为其第一触点导通第三触点时，可实现设备Type C母座11的DP脚与快充控制器12的TXD脚的连接；
第二切换开关S7的第一侧的第一触点连接设备Type C母座11的DM脚，第二侧的第二触点连接处理器12的USB2.0数字信号的D-脚，第二侧的第三触点连接快充控制器12的RXD脚，当第二切换开关S7被切换为其第一触点导通第二触点时，可实现设备Type C母座11的DM脚与处理器14的D脚的连接，当第二切换开关S7被切换为其第一触点导通第三触点时，可实现设备Type C母座11的DM脚与快充控制器12的RXD脚的连接；
可见，以上第一切换开关S6与第二切换开关S7可构成两路单刀双掷开关。
有关其中的第三切换开关S8与第四切换开关S9，具体为：
第三切换开关S8第一侧的第一触点连接设备Type C母座11的SBU1脚，第二触点连接设备Type C母座11的SBU2脚，第二侧的第三触点连接快充控制器12的TXD脚；当第三切换开关S8被切换为其第一触点导通第三触点时，设备Type C母座11的SBU1脚连接快充控制器12的TXD脚，当第三 切换开关S8被切换为其第二触点导通第三触点时，设备Type C母座11的SBU2脚连接快充控制器12的TXD脚；
第四切换开关S9第一侧的第一触点连接设备Type C母座11的SBU1脚，第二触点连接设备Type C母座11的SBU2脚，第二侧的第三触点连接快充控制器12的RXD脚；当第四切换开关S9被切换为其第一触点导通第三触点时，设备Type C母座11的SBU1脚连接快充控制器12的RXD脚，当第四切换开关S9被切换为其第二触点导通第三触点时，设备Type C母座11的SBU2脚连接快充控制器12的RXD脚；
可见，在图8所示构造中，其第三切换开关S8与第四切换开关S9可以构成交叉连接或非交叉连接的方式实现所需的连接通道。
在图8所示构造中，第一切换开关S6与第二切换开关S7在第一侧设有一个触点，在第二侧设有两个触点，其他举例中，也可在第一侧设有两个触点，在第二侧设有一个触点，同样的，在图9所示构造中，第三切换开关S8与第四切换开关S9在第一侧设有两个触点，在第二侧设有一个触点，在其他举例中，也可在第一侧设有一个触点，在第二侧设有两个触点。此外，也不排除各切换开关共用部分触点的情形。
其中一种实施方式，配合于开关组合13的使用，所述的电子设备，还可包括电流源与电压检测模块，所述电流源经所述开关组合连接所述设备Type C母座的SBU脚，用于向该SBU脚输出电流；
所述电压检测模块直接或间接连接所述设备Type C母座11的SBU脚，以检测该SBU脚的电压信息，以使得所述设备Type C母座11的SBU脚的对外阻抗能够根据所述电压信息被确定，例如，电压检测模块可连接处理器，从而将电压信息反馈至处理器，使其能够确定设备Type C母座的SBU1脚与SBU2脚的对外阻抗。
此外，电流源可利用以上切换开关之外的开关接入SBU脚，也可结合以上开关组合13来实现，例如电流源分别连接至第三切换开关S8和/或第四切换开关S9的第三触点。
以上实施方式中，可在充电器、配件等均连接后，对充电器的D+和D-脚的下拉电阻阻值或D+和D-之间短路与否进行检测判断，以便充电器和充电线路做好快速充电协议进行通信前的准备工作。
其中一种实施方式中，请参考图3，所述的电子设备1，还可包括电源管理模块15，所述电源管理模15块连接所述设备Type C母座11的VBUS脚。
在所述配件2接入所述设备Type C母座11时，所述设备Type C母座11的CC脚连接所述配件2的配件Type C公头的CC脚；所述设备Type C母座的CC脚连接处理器14，所述处理器14用于根据该所述设备Type C母座11的CC脚的信号确定所述配件的对外连接状态。
其中对外连接状态可以包括所述音频接头接入所述配件，但所述充电器未接入所述配件的第一连接状态，以及所述对外连接状态为所述充电器接入所述配件的第二连接状态；
若所述对外连接状态为所述第一连接状态，则所述处理器14还用于指示所述电源管理模块15利用所述设备Type C母座11的VBUS脚向所述配件供电；
若所述对外连接状态为所述第二连接状态，则所述处理器14还用于指示所述电源管理模块15利用所述设备Type C母座11的VBUS脚接收充电。
此外，对外连接状态还可例如包括音频接头3与充电器4均未接入的第三连接状态，以及充电器4接入但音频接头3未接入的第四连接状态。
其中，电源管理模块15可以分别与处理器14与设备Type C母座11的VBUS脚11连接，同时，处理器14可利用USB PD模块的CC脚连接设备Type C母座11的CC脚连接。
以上所涉及的CC脚中的CC，具体指Configruation Channel，其可理解为Type C接口的配置通道，通常用于支持USB设备及线缆的识别和有关通信判断。
其中的电源管理模块15，可以表征为：Power Management，其可理解为连接电子设备的电源，且能够对电源的输入输出进行管控的电路模块，其可以是独立于处理器14和/或快充控制器12的模块，也可以集成于处理器14和/或快充控制器12的模块。
请参考图4，本实施例还提供了一种兼具快充与音频传输功能的配件2，包括：用于连接充电器4的配件Type C母座23、配件Type C公头21，以及用于连接音频接头22的音频接口22；所述配件Type C公头21用于连接以上可选方案所涉及的电子设备1中的设备Type C母座11。
其中，可利用配件Type C公头21的SBU脚连接设备Type C母座的SUB脚，具体为：配件Type C公头21的SBU1脚连接设备Type C母座的SUB1脚，配件Type C公头21的SBU2脚连接设备Type C母座的SUB2脚。
任意能够配合电子设备，从而能够利用设备Type C母座的SBU脚进行快充协议通信的配件，均不脱离本实施例的描述。
为了实现快充协议通信，需将配件Type C公头21的SBU1脚与SBU2脚接至充电器的D+脚与D-脚。
一种举例中，如图5所示，所述配件Type C公头21的SBU1脚与SBU2脚分别连接所述配件Type C母座23的DP脚与DM脚，所述充电器4接入所述配件Type C母座23时，所述配件Type C母座23的DP脚与DM脚分别连接所述充电器的D+脚与D-脚。
另一种举例中，如图6所示，所述配件Type C公头21的SBU1脚与SBU2脚分别连接所述配件Type C母座23的SBU1脚与SBU2脚，所述充电器4接入所述配件Type C母座23时，所述配件Type C母座23的SBU1脚与SBU2脚分别连接所述充电器4的SBUE1脚与SBU2脚。
其中一种实施方式中，配件中的音频信号可利用模拟音频信号的方式传输，从而与电子设备通过模拟音频信号交互。
另一种实施方式中，请参考图7，也可利用数字音频信号交互。
请参考图7，所述的配件2，还包括音频处理模块24。
其中的音频处理模块24可表征为Audio ASIC，其可以是能够对模拟的音频信号进行模数、数模转换的电路模块。
所述音频处理模块24的三个信号传输脚分别连接所述音频接口中的左声道管脚、右声道管脚与麦克风管脚；所述音频处理模块24还连接所述配件Type C公头21的DP脚与DM脚；
所述音频处理模块24用于：
通过所述配件Type C公头的DP脚与DM脚与所连接的电子设备1交互数字音频信号；具体可与设备Type C母座11中的DP脚与DM脚交互；
通过所述三个信号传输脚与所述音频接头3交互模拟音频信号，以及：
进行所述数字音频信号与所述模拟音频信号之间的转换。
具体实施过程中，音频处理模块24的供电可以利用配件中的储能部件来 实现，音频处理模块24的供电也可利用电子设备1与充电器4来实现，进而，可在接入充电器4时利用充电器4供电，在接入电子设备1时利用电子设备1供电。
所述音频处理模块24的第一检测管脚与第二检测管脚也连接至所述音频接口，且所述第一检测管脚与所述第二检测管脚能够在所述音频接头完全接入所述音频接口时短接，所述第一检测管脚连接至所述配件Type C公头的CC脚，该两个检测管件可例如图8中所示的DET1脚与DET2脚。
在所述音频接头3完全接入所述音频接口23，但所述充电器4未接入所述配件Type C母座23时，所述第一检测管脚与所述第二检测管脚短接，并能够将所述配件Type C公头21的CC脚拉至第一电平，以指示连接所述配件的电子设备直接或间接向所述音频处理模块供电；以图8为例，由于DET1脚与DET2脚短接，其可在第二开关S2导通时将两者的电位下拉，因DET1脚经电阻连接至CC脚，CC脚的电位也可一同被下拉，在其他举例中，也不排除将其上拉的实施方式。
在所述充电器4接入所述配件Type C母座23时，所述音频处理模块24能够被所述充电器供电。
为了在配件的不同的对外连接状态下切换音频处理模块24的不同供电方式，请参考图8，所述的配件2，还可包括控制模块25；该控制模块25可以是配件中已有的控制模块，也可以是另行配置的控制模块。
所述控制模块的供电脚连接所述配件Type C母座23的VBUS脚，以在所述充电器4接入所述配件Type C母座23时，被所述充电器4供电。
所述控制模块25在所述充电器4接入所述配件Type C母座23时，还用于：
将所述配件Type C公头21的CC脚拉至第二电平，以指示连接所述配件的电子设备利用其设备VBUS脚接收充电。在图8所示举例中，拉至第二电平可以是上拉电平，在其他举例中，也可以是下拉电平。
以上方案中，配件Type C公头21的CC脚的电平被拉至相应电位后，电子设备1中的CC脚的电平也可被拉至相应电位，从而使得处理器获悉配件的对外连接状态，从而根据前文所提及的内容控制电源管理模块15。
以图8为例，为了配合以上控制模块25的控制过程，所述的配件2，还 可包括：第一开关S1、第二开关S2、第三开关S3、第四开关S4与低压差线性稳压器LDO。
所述第一开关S1连接于所述第一检测脚与所述第二检测脚之间，所述第一开关S1能够在所述音频接头3完全接入所述音频接口22时导通；所述第二开关S2连接于所述第二检测脚与地之间，所述第二开关的两端还并联有一个电阻单元，该电阻单元可例如包括图8所示的电阻R6；所述第三开关S3连接于所述配件Type C母座23的VBUS脚与所述配件Type C公头21的VBUS脚之间；所述配件Type C公头21的CC脚经所述第四开关S4与一电阻单元连接所述配件Type C公头21的VBUS脚，该电阻单元可例如包括图8所示的电阻R3，所述配件Type C公头21的VBUS脚还经所述低压差线性稳压器LDO为所述音频处理模块24供电；
所述控制模块25在将所述配件Type C公头的CC脚拉至第二电平时，具体用于：控制所述第二开关S2关断，以及：控制所述第三开关S3与所述第四开关S4导通。
以下将结合图8对其作用原理进行进一步的描述，其可理解为基于以上所涉及的电子设备与配件的一种举例。
其中，例如3.5mm耳机接口的音频接口中，在例如耳机接头的音频接头***音频接口后，可使得第一开关S1闭合；音频接口可连接有一个常闭(N.C.)的第二开关S2以及与S2并联的电阻R6，该电阻R6的阻值可以为2M欧姆或其他较大的值，通过该电阻R6，可确保第一开关S1和第二开关S2都断开时，音频处理模块24的DET2脚被电阻R6拉到低电平逻辑，以便音频处理模块24结合DET1脚的电平状态判断充电器4给电的情况下音频接头的***与否，此时，低阻抗的第二开关S2会被断开。
同时，在DET1脚和CC脚(其可以是如图8所示的CC2脚，也可以是CC1脚)之间接了一个5.1K欧姆的电阻R3。配件Type C公头21处配了56K欧姆的电阻R4和电阻R5，分别将配件Type C公头21的CC1脚和CC2脚经过缺省为断开的第四开关S4和第四开关S5上拉到VBUS脚。
靠近充电器的配件Type C母座23的VBUS脚经过具有限流功能的第三开关S3接到配件Type C公头21的VBUS脚。靠近充电器的配件Type C母座23的CC1脚和CC2脚分别由两个5.1K欧姆的电阻R1与电阻R2下拉， 以确保充电器连同USB Type C线缆***(不管正反插与否)时该配件可以自身定义为USB被充电设备,从而使配件Type C母座23的VBUS脚可以得到来自充电器的标准的5V电源。
图8中所示的控制模块可以是由一些分立电路组成的，也可以是一个单片机***(例如：LDO+MCU)来实现相关控制功能的，其功能主要在于控制控制第二开关S2、第三开关S3，以及第四开关S4和第四开关S5的导通与断开，具体的，其中的第一开关S1可以是例如耳机接口的音频接口22自带的弹片开关，平时处于断开状态(常开：N.O.)，耳机***到位的动作会将第一开关S1导通，进而将DET1脚和DET2脚短接；第二开关S2可以是常闭开关(N.C.)或类似常闭功能的开关，进而，在配件Type C母座23的VBUS脚没有经低压差线性稳压器LDO给音频处理芯片24供电时，若耳机***使得DET1脚和DET2脚短接时，第二开关S2会处于导通状态,从而配件Type C公头21的CC2脚通过5.1K欧姆电阻下拉到地，以便音频接头(或理解为耳机)+音频接口+音频处理模块24+低压差线性稳压器LDO这部分电路向电子设备1宣称自己为USB从设备，从而要求电子设备给配件Type C公头21的VBUS脚提供5V电源输出，从而在供电条件下实现电子设备的数字音频和配件这边被***的模拟耳机的模拟音频之间的交互。
当接入充电器，从而提供充电时，配件2的配件Type C母座23的VBUS脚会被给电，这时通过控制模块可以实现第三开关S3的导通，第二开关S2的断开以及第四开关S5的导通(或第四开关S5和第四开关S4的一并导通)。从而既打通了由充电器对电子设备和低压差线性稳压器LDO+音频处理模块24部分进行供电，也通过CC2脚的上拉(断开第二开关S2并导通第四开关S5)来向电子设备宣称充电器的***(其中缺省断开的第四开关S4可以是预留的，某些品牌的USB线缆(Type A-C)中CC1脚和CC2脚都会上拉56K欧姆电阻到VBUS，预留S4开关用于适配这类线缆)。
如果充电器拔出，则该配件2的配件Type C母座23的VBUS的电源会被去掉,然后控制模块25会失电，从而使得第二开关S2回到缺省导通或准备导通状态(其中，若***耳机配合CC2脚即可导通)，第三开关S3和第四开关S5以及第四开关S4回到缺省断开状态。
图8所示的电子设备可以是一种便携式设备，其具体为Portable Device。
其中的电源管理模块可用于管理对外供电(例如只有耳机***时，电子设备变身主设备对配件供电)和管理充电器或快速充电器对电子设备的充电，其中的开关组合13中，第一切换开关S6和第二切换开关S7可构成两路单刀双掷开关可以把电子设备内部的USB2.0数字信号(D+/D-)和快充控控制器的数字收发信号(RXD脚/TXD脚)通过设备Type C母座11的DP_T脚/DP_B即(其可短接命名为Dp1脚)和DM_T脚/DM_B脚(其可短接后命名为Dm1脚)对外分时切换进行沟通,如可分别单独接USB数字耳机或USB快速充电器进行通信。
开关组合电路里面的第三切换开关S8和第四切换开关S9可构成两路可交叉连接或非交叉连接开关实现SBU1连快充控制器12的TXD脚和SBU2连快充控制器12的RXD脚或者SBU1连快充控制器的RXD脚和SBU2连快充控制器12的TXD脚，此外，其中的TXD脚和RXD脚也可以是作为快充控制器12的MCU或ASIC的两个通用输入输出脚(GPIO)或数据SDA和时钟SCL脚。
此外，第三切换开关S8和第四切换S9组合连接SBU1脚和SBU2脚也可具有通过电流源执行阻抗检测的功能，以便通过SBU1和SBU2脚经由图8所示的配件连接到充电器的D+和D-脚后，对充电器的D+和D-脚的下拉电阻阻值或D+和D-之间短路与否进行检测和判断，以便充电器和充电线路做好快速充电协议进行通信前的准备工作和确保通过第三切换开关S8和第四切换开关S9的可交叉连接或非交叉连接切换准确匹配MCU/ASIC的TXD和RXD到充电器的D+和D-的对应。
可见，通过内部开关组合的配合，即实现了配件的配合下只有一个USB Type C接口的电子设备之数字音频和快速充电的同时兼容。
可见，在以上实施方式中，配件和电子设备相关部件构成的***创造性地使用了电子设备1的设备Type C母座11的SBU1和SBU2脚来跟配件2这边的配件Type C母座23的DP_T/DP_B和DM_T/DM_B(这两个脚最终可以连接充电器的D+和D-脚)两个信号分别相连，即可使得如智能手机的电子设备能够通过SBU1脚和SBU2脚和充电器的D+和D-脚进行快速充电的协议通信,从而使得匹配的快速充电充电器对便携式设备进行快速充电。相较而言，目前非常主流的快速充电协议如华为的SCP/FCP,Oppo的 VOOC/Super VOOC以及Vivo的私有快充协议都是通过USB D+/D-脚进行通信的。进而，本实施例的配件与电子设备实现了音频交互的同时被快速充电。
请参考图9，在本实施例构思下的另一种方案中，所述快充控制器可用于：在所述配件2接入所述设备Type C母座11，且所述充电器4连接所述配件2时，利用所述设备Type C母座11的VBUS脚与经配件2所连接的充电器4的D+脚与D-脚进行快充协议通信。进而，其中，快充控制器12可直接或间接连接至设备侧Type C母座11的VBUS脚。
针对于该方案，请参考图10，其中的配件还可包括调制模块26；所述调制模块26连接所述配件Type C公头21的VBUS脚，所述调制模块26用于在所述配件Type C公头的VBUS脚产生调制数字信号，以利用所述调制数字信号进行所述快充协议通信，同时，调制模块还可间接连接至充电器的D+脚与D-脚。
一种举例中，所述调制模块26分别连接所述配件Type C母座23的DM脚与DP脚，所述配件Type C母座23的DM脚与DP脚分别连接所述充电器的D+脚与D-脚；
另一种举例中，所述调制模块26也可分别连接所述配件Type C母座23的SBU1脚与SBU2脚，所述配件Type C母座23的SBU1脚与SBU2脚分别连接所述充电器的D+脚与D-脚。
以上实施方式中，利用VBUS电源脚上调制数字信号来做快速充电的协议通信，继而实现音频交互的同时快速充电。
同时，在一种实施方式中，可利用如前文所提及的数字音频信号进行音频交互，进而采用了如图7和图8所示的音频处理模块及其相应的电路配置。
另一种实施方式中，也可利用模拟音频信号进行音频交互的电路构造，其可如图11所示。同时，本实施例也不排除在图1所示实施方式中使用该电路构造。对应的，在电子设备1中，可配置有经开关组件13连接至设备Type C母座的音频编译码器16。
以下将结合图11对模拟音频信号的音频交互进行描述：
与图8所示相类似的，其中的音频接口可例如3.5mm耳机接口，其可支持左右声道R和L，音频接头可连接耳机接口的RING1脚和TIP脚，麦克风通道MIC连接音频接口的RING2脚或SLEEVE脚，音频地AGND连接音频 接口的SLEEVE脚或RING2脚，***检测可通过DET1脚和DET2脚之间的作为常开开关的第一开关S1因耳机***被导通时一并把配件Type C公头21的CC1脚和CC2脚下拉到地使得例如智能手机的电子设备1可以检测到模拟耳机的***。
另外，由于例如智能手机内部通常可以做到模拟耳机的MIC的正反插检测和交叉或非交叉的开关切换，所以不管例如3.5mm耳机接口的音频接口的RING2脚还是SLEEVE脚接MIC都可以适配到电子设备内部的音频编译码器16的MIC脚(AGND同理)。
此外，与图8所示相类似的，Type C公头的DP_T脚随着公头翻转180°等同到DP_B脚(DM_T和DM_B两脚同理)，所以将DP_T和DP_B短接(Type C规范中也一并命名为Dp1)，将DM_T和DM_B短接(Type C规范中也一并命名为Dn1)，这样可以确保USB Type C线缆或配件的公头和电子设备的母座连接时不管怎么正反插都可以确保配件和便携式设备两边的USB的D+跟D+连接，D-跟D-连接(或者复用USB的D+/D-脚走模拟音频信号时候，也可以准确地和R/L对应起来)。
请参考图11所示，配件Type C公头的CC1脚和CC2脚短接后连接DET脚(DET脚连接耳机接口的DET1脚)，音频接口的DET2脚接数字地GND，音频接口的DET1脚和DET2脚之间有个常开开关(N.O.)，即第一开关S1，耳机***时DET1脚和DET2脚即可短接起来，可把所连接的CC1脚和CC2脚都拉低到GND来通知电子设备模拟耳机已经***了，DP_T脚和DP_B短接后可连接音频信号R(R接耳机接口的RING1脚)，DM_T脚和DM_B脚短接后连接音频信号L(L接耳机接口的TIP脚)，配件的配件Type C公头的SBU1脚和SBU2脚分别连接MIC/AGND脚(连接耳机接口的RING2脚)和AGND/MIC脚(连接耳机接口的SLEEVE脚),配件Type C公头21的VBUS脚连接支持充电器接入的配件Type C母座23的VBUS脚，配件Type C母座23的CC1脚和CC2脚都通过5.1K的电阻下拉到地，以便***该配件并连接充电器的Type C线缆的公头不管正插或反插都有5.1K电阻把线缆里面的CC脚下拉，从而确保该小配件被定义为需要供电的USB设备，从而充电器可以输出标准的5V电压到配件Type C母座23的VBUS脚。最后配件中的各处地即GND脚连接起来。
对应的，在电子设备中，设备Type C母座11用于跟配件2的配件Type C公头23进行连接，即与VBUS脚、CC1脚、CC2脚、DP_T脚/DP_B脚、DM_T脚/DM_B脚、SBU1脚、SBU2脚和GND等对应电气连接，通过设备Type C母座11的VBUS脚收到的电压可通过电源管理模块15对电子设备进行充电，CC1脚和CC2脚连接USB PD部件以便识别配件那边的模拟耳机的***，DP_T脚/DP_B脚和DM_T脚/DM_B脚分别跟配件那边的音频声道R和L相连，同时开关组合13中的作为单刀双掷开关的第一切换开关S6和第二切换开关S7可以在电子设备检测到模拟耳机***时把音频编译码器的R和L声道脚分别连接到DP_T脚/DP_B脚和DM_T脚/DM_B脚，否则DP_T脚/DP_B脚和DM_T脚/DM_B脚可以连接处理器的USB2.0的D+脚和D-脚；SBU1脚和SBU2脚分别跟配件那边的MIC脚/AGND和AGND/MIC脚连接，同时开关组件13中的作为单刀双掷开关的第三切换开关S8和第四切换开关S9构成两路支持可交叉连接或非交叉连接的开关来实现SBU1连音频编译码器16的MIC脚和SBU2连音频编译码器16的AGND脚或者SBU1连音频编译码器16的AGND脚和SBU2连音频编译码器16的MIC脚,以便确保模拟耳机的MIC脚准确连接到电子设备里的音频编译码器16的MIC脚以及模拟耳机的AGND脚准确连接到电子设备里的音频编译码器16的AGND脚，其中SBU1脚和SBU2脚具有的阻抗检测功能可用于模拟耳机的MIC和AGND与音频编译码器16的MIC和GND接反与否的判断。便携式设备这边的数字地GND与左边小配件的数字地GND直接连接。
综上所述，本发明提供的电子设备与兼具快充与音频传输功能的配件中，电子设备能够利用设备Type C母座的SBU脚与充电器的D+脚与D-脚进行快充协议通信，其突破了现有的快速充电方式中利用CC脚进行快充协议通信的惯常思路，进而，在使用兼具音频传输功能的配件时，还可实现快速充电。进一步可选方案中，通过数字音频信号的交互，能节约所需使用的管脚，保障快充协议通信对SBU脚的使用。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (13)

  1. 一种电子设备，所述电子设备能够经配件分别连接充电器与音频接头，其特征在于，所述电子设备包括：快充控制器与设备Type C母座；
    所述快充控制器用于：
    在所述配件接入所述设备Type C母座，且所述充电器连接所述配件时，利用所述设备Type C母座的SBU脚与经配件所连接的充电器的相应管脚进行快充协议通信。
  2. 根据权利要求1所述的电子设备，其特征在于，所述设备Type C母座的SBU脚经开关组合连接所述快充控制器。
  3. 根据权利要求2所述的电子设备，其特征在于，所述设备Type C母座的两个SBU脚分别为其SBU1脚与SBU2脚，所述设备Type C母座的SBU1脚与SBU2脚连接所述开关组合的一侧，所述快充控制器的第一数据脚与第二数据脚连接所述开关组合的另一侧；
    所述开关组合用于：
    将所述设备Type C母座与所述快充控制器的连通方式切换为：
    所述设备Type C母座的SBU1脚连接第一数据脚，所述设备Type C母座的SBU2脚连接第二数据脚，或者：
    所述设备Type C母座的SBU1脚连接第二数据脚，所述设备Type C母座的SBU2脚连接第一数据脚。
  4. 根据权利要求2所述的电子设备，其特征在于，还包括处理器，在所述配件接入所述设备Type C母座时，所述设备Type C母座的DP脚与DM脚分别连接所述配件的配件Type C公头的DP脚与DM脚；
    所述处理器直接或间接连接所述设备Type C母座的DP脚与DM脚，以利用其与所述配件交互数字音频信号，所述数字音频信号匹配于所述配件与所述音频接头交互的模拟音频信号。
  5. 根据权利要求4所述的电子设备，其特征在于，所述开关组合一侧还分别连接所述设备Type C母座的DP脚与DM脚，所述开关组合的另一侧还连接所述处理器的用于接收USB2.0数字信号的数字信号管脚；
    所述开关组合用于：
    将所述设备Type C母座的DP脚切换至连接所述快充控制器或所述处理 器；
    将所述设备Type C母座的DM脚切换至连接所述快充控制器或所述处理器。
  6. 根据权利要求2所述的电子设备，其特征在于，还包括电流源与电压检测模块，所述电流源经所述开关组合连接所述设备Type C母座的SBU脚，用于向该SBU脚输出电流；
    所述电压检测模块直接或间接连接所述设备Type C母座的SBU脚，以检测该SBU脚的电压信息，以使得所述设备Type C母座的SBU脚的对外阻抗能够根据所述电压信息被确定。
  7. 根据权利要求1至6任一项所述的电子设备，其特在于，还包括电源管理模块，所述电源管理模块连接所述设备Type C母座的VBUS脚；
    在所述配件接入所述设备Type C母座时，所述设备Type C母座的CC脚连接所述配件的配件Type C公头的CC脚；所述设备Type C母座的CC脚连接处理器，所述处理器用于根据该所述设备Type C母座的CC脚的信号确定所述配件的对外连接状态；所述对外连接状态包括所述音频接头接入所述配件，但所述充电器未接入所述配件的第一连接状态，以及所述对外连接状态为所述充电器接入所述配件的第二连接状态；
    若所述对外连接状态为所述第一连接状态，则所述处理器还用于指示所述电源管理模块利用所述设备Type C母座的VBUS脚向所述配件供电；
    若所述对外连接状态为所述第二连接状态，则所述处理器还用于指示所述电源管理模块利用所述设备Type C母座的VBUS脚接收充电。
  8. 一种兼具快充与音频传输功能的配件，其特征在于，包括：用于连接充电器的配件Type C母座、配件Type C公头，以及用于连接音频接头的音频接口；所述配件Type C公头用于连接权利要求1至7任一项所述的电子设备中的设备Type C母座。
  9. 根据权利要求8所述的配件，其特征在于，所述配件Type C公头的SBU脚包括所述配件Type C公头的SBU1脚与SBU2脚；
    所述配件Type C公头的SBU1脚与SBU2脚分别连接所述配件Type C母座的DP脚与DM脚，所述充电器接入所述配件Type C母座时，所述配件Type C母座的DP脚与DM脚分别连接所述充电器的D+脚与D-脚；
    或者：
    所述配件Type C公头的SBU1脚与SBU2脚分别连接所述配件Type C母座的SBU1脚与SBU2脚，所述充电器接入所述配件Type C母座时，所述配件Type C母座的SBU1脚与SBU2脚分别连接所述充电器的SBU1脚与SBU2脚。
  10. 根据权利要求8或9所述的配件，其特征在于，还包括音频处理模块；
    所述音频处理模块的三个信号传输脚分别连接所述音频接口中的左声道管脚、右声道管脚与麦克风管脚；所述音频处理模块还连接所述配件Type C公头的DP脚与DM脚；
    所述音频处理模块用于：
    通过所述配件Type C公头的DP脚与DM脚与所连接的电子设备交互数字音频信号；
    通过所述三个信号传输脚与所述音频接头交互模拟音频信号，以及：
    进行所述数字音频信号与所述模拟音频信号之间的转换。
  11. 根据权利要求10所述的配件，其特征在于，所述音频处理模块的第一检测管脚与第二检测管脚也连接至所述音频接口，且所述第一检测管脚与所述第二检测管脚能够在所述音频接头完全接入所述音频接口时短接，所述第一检测管脚连接至所述配件Type C公头的CC脚；
    在所述音频接头完全接入所述音频接口，但所述充电器未接入所述配件Type C母座时，所述第一检测管脚与所述第二检测管脚短接，并能够将所述配件Type C公头的CC脚拉至第一电平，以指示连接所述配件的电子设备直接或间接向所述音频处理模块供电；
    在所述充电器接入所述配件Type C母座时，所述音频处理模块能够被所述充电器供电。
  12. 根据权利要求11所述的配件，其特征在于，还包括控制模块；所述控制模块的供电脚连接所述配件Type C母座的VBUS脚，以在所述充电器接入所述配件Type C母座时，被所述充电器供电；
    所述控制模块在所述充电器接入所述配件Type C母座时，还用于：
    将所述配件Type C公头的CC脚拉至第二电平，以指示连接所述配件的 电子设备利用其设备VBUS脚接收充电。
  13. 根据权利要求12所述的配件，其特征在于，还包括：第一开关、第二开关、第三开关、第四开关与低压差线性稳压器；
    所述第一开关连接于所述第一检测脚与所述第二检测脚之间，所述第一开关能够在所述音频接头完全接入所述音频接口时导通；所述第二开关连接于所述第二检测脚与地之间，所述第二开关的两端还并联有一个电阻单元；所述第三开关连接于所述配件Type C母座的VBUS脚与所述配件Type C公头的VBUS脚之间；所述配件Type C公头的CC脚经所述第四开关与一电阻单元连接所述配件Type C公头的VBUS脚，所述配件Type C公头的VBUS脚还经所述低压差线性稳压器为所述音频处理模块供电；
    所述控制模块在将所述配件Type C公头的CC脚拉至第二电平时，具体用于：控制所述第二开关关断，以及：控制所述第三开关与所述第四开关导通。
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