Charging circuit and data line

Abstract

The embodiment of the utility model provides a charging circuit and a data line, and the charging circuit comprises a control module and a voltage adjustment module. Wherein the control module is connected with the voltage adjusting module; the voltage adjusting module is used for being connected with a load; the control module is used for acquiring charging protocol information of at least two loads when detecting that at least two of the at least two interfaces of the data line are respectively connected with one load, and controlling the voltage adjusting module to output a voltage which is the same as the charging protocol voltage of the at least two loads according to the charging protocol information. The data line is used for charging the at least two loads through the interfaces, the data line comprises at least two lines, and each line is provided with an interface capable of being connected with a load.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to a charging circuit and a data line. Background Art

[0002] Currently, when a multi-point data line is connected to multiple loads for charging, the data line cannot accurately identify the charging needs of each load, and multiple loads cannot be fast-charged at the same time. Multiple loads can only be charged simultaneously through slow charging, which has low charging efficiency and affects user experience. Utility Model Content

[0003] Embodiments of the present application provide a charging circuit and a data line.

[0004] The technical solution of the embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a charging circuit, comprising: a control module and a voltage adjustment module; wherein the control module is connected to the voltage adjustment module; and the voltage adjustment module is configured to be connected to a load;

[0006] The control module is configured to, upon detecting that at least two of the at least two interfaces of the data line are respectively connected to a load, obtain charging protocol information of the at least two loads, and control the voltage adjustment module to output a voltage having the same magnitude as the charging protocol voltage of the at least two loads based on the charging protocol information, so as to charge the at least two loads through the interfaces. The data line includes at least two lines, each of which is provided with an interface capable of connecting to a load.

[0007] In a second aspect, an embodiment of the present application provides a data line, including the charging circuit provided by any embodiment of the present application.

[0008] Through the charging circuit provided in the embodiment of the present application, the control module can detect the charging protocol information of the data line connected to the load, and control the output voltage of each line of each data line according to the charging protocol information, so that each line charges the load with a voltage that is the same as the load charging protocol voltage, which can realize protocol fast charging for each load, improve charging efficiency, and enhance user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Schematic diagram of the charging circuit provided in the embodiment of the present application Figure 1 ;

[0010] Figure 2 Schematic diagram of the charging circuit provided in the embodiment of the present application Figure 2 ;

[0011] Figure 3 A schematic diagram of the structure of the voltage adjustment module provided in an embodiment of the present application;

[0012] Figure 4 A schematic diagram of the structure of the voltage adjustment submodule provided in an embodiment of the present application;

[0013] Figure 5 Schematic diagram of the charging circuit provided in the embodiment of the present application Figure 3 ;

[0014] Figure 6 A schematic diagram of a first power management chip and its peripheral circuits provided in an embodiment of the present application;

[0015] Figure 7 A circuit diagram of the second power management chip and its peripheral circuits, and the power interface module provided in an embodiment of the present application;

[0016] Figure 8 A circuit diagram of the third power management chip and its peripheral circuits, voltage adjustment submodule three, and interface three provided in an embodiment of the present application;

[0017] Figure 9 A circuit diagram of the voltage adjustment submodule 1 and interface 1 provided in an embodiment of the present application;

[0018] Figure 10 A circuit diagram of the voltage adjustment submodule 2 and interface 2 provided in an embodiment of the present application;

[0019] Figure 11 A schematic diagram of the arrangement of a charging circuit provided in an embodiment of the present application;

[0020] Figure 12 Schematic diagram of the PCB board stacking structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] It should be noted that in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the embodiments of the present application, the character " / " generally indicates that the associated objects are in an "or" relationship.

[0023] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0024] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0025] In the related art, portable vehicle data cable products are designed with only one power supply control mode. When the battery suddenly runs out of power during use, the user cannot inflate the product, which seriously affects the user experience during travel.

[0026] Figure 1 Schematic diagram of the charging circuit provided in the embodiment of the present application Figure 1 ,like Figure 1 As shown, the charging circuit provided in the embodiment of the present application includes: a control module and a voltage adjustment module; wherein the control module is connected to the voltage adjustment module; the voltage adjustment module is used to connect to a load;

[0027] The control module is configured to, upon detecting that at least two of the at least two interfaces of the data line are respectively connected to a load, obtain charging protocol information of the at least two loads, and control the voltage adjustment module to output a voltage having the same magnitude as the charging protocol voltage of the at least two loads based on the charging protocol information, so as to charge the at least two loads through the interfaces. The data line includes at least two lines, each of which is provided with an interface capable of connecting to a load.

[0028] In the embodiment of the present application, the at least two lines included in the data line are at least two output lines, and the data line also includes an input line for connecting to the adapter.

[0029] Figure 2 Schematic diagram of the charging circuit provided in the embodiment of the present application Figure 2 ,like Figure 2 As shown, in this embodiment, the charging circuit includes a control module, a voltage adjustment module and a power interface module. The power interface module is connected to the voltage adjustment module and is used to receive voltage from the adapter and output the received voltage to the voltage adjustment module.

[0030] The control module is connected to interfaces on at least two data lines. When a load is connected to the interface, the load can perform a protocol handshake with the control module through the interface. The control module detects the charging protocol information of each load connected to the data line. Here, the charging protocol information includes: charging protocol current, charging protocol voltage, charging protocol power, etc. The control module controls the voltage adjustment module to output the charging protocol voltage required by each load based on the charging protocol information of each load.

[0031] In an embodiment of the present application, the voltage adjustment module includes at least two voltage adjustment sub-modules, and the at least two voltage adjustment sub-modules correspond one-to-one to at least two lines. A voltage adjustment sub-module is provided on each line. The control module controls the voltage adjustment sub-modules on the lines connected to the loads according to the charging protocol voltage required by the loads of each line connected to the loads, so that each line connected to the loads outputs a voltage of the same magnitude as the charging protocol voltage of the loads.

[0032] Figure 3 A schematic diagram of the structure of the voltage adjustment module provided in the embodiment of the present application is shown in FIG. Figure 3 As shown, the voltage adjustment module includes n voltage adjustment submodules, the data line includes n output interfaces, a voltage adjustment submodule is set on each output line of the data line, and the n voltage adjustment submodules correspond to the n output interfaces one by one.

[0033] Based on this, in an optional embodiment of the present application, the voltage adjustment module includes: at least two voltage adjustment sub-modules, one voltage adjustment sub-module is provided on each line;

[0034] The control module is used to control the voltage adjustment submodule on the line connected to the load to output a voltage with the same magnitude as the charging protocol voltage of the load.

[0035] In actual application, the power interface module can transmit the voltage received from the adapter to each voltage adjustment sub-module of the at least two voltage adjustment sub-modules.

[0036] In the embodiment of the present application, each of the at least two lines can be connected to a load using a different charging protocol, and the charging protocol information corresponding to each line is different. In actual application, the at least two lines can also be connected to multiple loads using the same or different charging protocols. This can be configured according to actual needs and is not limited in the embodiment of the present application.

[0037] The interface of the line can be set to a Mini USB interface, a Micro USB interface, a USB Type-C interface, a Lightning interface, etc. In actual application, it can also be set to other charging interfaces, which is not limited in the embodiment of the present application.

[0038] In an embodiment of the present application, the data cable is a one-to-multiple data cable, which can be a one-to-two data cable, a one-to-three data cable, or other data cable with multiple output interfaces. The multiple interfaces of the data cable can be set to the same type of interface, for example, uniformly set to USB Type-C interfaces, or can be set to different types of interfaces. The embodiment of the present application does not limit this.

[0039] In the embodiment of the present application, the voltage adjustment submodule includes one or more of the following circuits:

[0040] The boost subcircuit is used to boost the input voltage to obtain a voltage that is the same as the charging protocol voltage of the load;

[0041] The step-down subcircuit is used to step down the input voltage to obtain a voltage that is the same as the charging protocol voltage of the load;

[0042] The pass-through circuit is used to make the input voltage the same as the charging protocol voltage of the load.

[0043] The voltage adjustment sub-module adopts a boost sub-circuit, which can use a small input voltage to enhance the applicability of the charging circuit. The buck sub-circuit can improve the charging efficiency and reduce power loss. The pass-through circuit can reduce power loss and reduce circuit heat. In actual application, the voltage adjustment sub-circuit can be designed according to needs, and this application does not limit this.

[0044] The voltage input from the adapter to the power interface module can be directly transmitted to each voltage adjustment sub-module. The output voltage of the voltage adjustment sub-module is connected to the interface. The control module controls the voltage adjustment sub-module to output a voltage with the same magnitude as the charging protocol voltage of the load.

[0045] refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of the voltage adjustment submodule provided in the embodiment of the present application, as shown in FIG. Figure 4 As shown, in this embodiment, the voltage adjustment submodule includes a boost subcircuit, a buck subcircuit, a pass-through circuit, and a switch circuit. If the voltage input to the voltage adjustment submodule is greater than the load's charging voltage, the switch circuit connects the buck subcircuit to the load. If the voltage input to the voltage adjustment submodule is less than the load's charging voltage, the switch circuit connects the boost subcircuit to the load. If the voltage input to the voltage adjustment submodule is equal to the load's charging voltage, the switch circuit connects the pass-through circuit to the load. The control module can control which circuit the switch circuit connects.

[0046] Based on this, in an optional embodiment of the present application, when the voltage adjustment submodule includes at least two of a boost subcircuit, a buck subcircuit, and a pass-through circuit, the voltage adjustment submodule further includes a switch circuit, and the control module is configured to:

[0047] If the input voltage is greater than the charging protocol voltage of the load, controlling the switch circuit to connect the step-down sub-circuit and the load;

[0048] If the input voltage is less than the charging protocol voltage of the load, controlling the switch circuit to connect the boost subcircuit and the load;

[0049] If the input voltage is equal to the charging protocol voltage of the load, the switch circuit is controlled to connect the pass-through circuit and the load.

[0050] In an embodiment of the present application, when the boost sub-circuit or the buck sub-circuit is connected to the load, the control module can control the boost sub-circuit or the buck sub-circuit to adjust the input voltage through a feedback regulation (FB) voltage regulation method, so that the boost sub-circuit or the buck sub-circuit adjusts the input voltage to a voltage that is the same as the charging protocol voltage of the load and then charges the load.

[0051] Based on this, in an optional embodiment of the present application, if the control module controls the switch circuit to connect the step-down subcircuit and the load, or the control module controls the switch circuit to connect the step-up subcircuit and the load; the control module is further configured to:

[0052] The FB voltage regulation mode is used to control the step-down subcircuit to reduce the input voltage to a voltage that is the same as the charging protocol voltage of the load; or,

[0053] The FB voltage regulation method is used to control the boost subcircuit to increase the input voltage to a voltage that is the same as the charging protocol voltage of the load.

[0054] In an embodiment of the present application, the control module can also determine the voltage level received from the adapter based on the charging protocol information of each load connected to the data line, thereby increasing the flexibility of the charging circuit design and expanding its applicability. After determining the voltage level received from the adapter, the control module interacts with the power interface module and sends first information to the power interface module, the first information including the determined voltage level information. After receiving the first information, the power interface module interacts with the adapter and sends the first information to the adapter, ensuring that the voltage output by the adapter is the voltage level determined by the control module.

[0055] Based on this, in an optional embodiment of the present application, the control module is further configured to determine the voltage received from the adapter based on the charging protocol information of each of the at least two loads, generate first information, and send the first information to the power interface module, where the first information includes information related to the determined voltage.

[0056] The power interface module is configured to receive the first information sent by the control module, send the first information to the adapter, and receive the voltage of the determined voltage level from the adapter.

[0057] Exemplarily, the control module determines the highest charging voltage among multiple loads connected to the data lines as the adapter output voltage. In this example, the voltage adjustment submodule can be configured without a boost subcircuit, as the adapter output voltage is the highest charging voltage required by multiple loads. The voltage adjustment submodule can include a buck subcircuit and a pass-through circuit. When the adapter output voltage is the same as the charging voltage required by the load, the pass-through circuit is used to directly use the adapter output voltage as the output voltage of the voltage adjustment submodule to charge the load. When the adapter output voltage is greater than the charging voltage required by the load, the buck subcircuit is used to reduce the adapter input voltage to the voltage adjustment submodule to the charging voltage required by the load, and then charge the load.

[0058] Based on this, in an optional implementation manner of the present application, the control module is configured to use the highest charging protocol voltage among the at least two loads as the determined voltage magnitude.

[0059] refer to Figure 5 , Figure 5 A schematic diagram of the structure of the charging circuit provided in the embodiment of the present application Figure 3In this embodiment, the charging circuit includes: a power interface module, a control module, a voltage adjustment submodule 1, a voltage adjustment submodule 2 and a voltage adjustment submodule 3; wherein the control module includes a first power management chip, a second power management chip and a third power management chip, the power interface module is connected to the second power management chip, the voltage adjustment submodule 1, the voltage adjustment submodule 2 and the voltage adjustment submodule 3; the voltage adjustment submodule 1 is connected to the third power management chip and the interface 1; the first power management chip is connected to the second power management chip, the third power management chip, the interface 2, the interface 3, the voltage adjustment submodule 1, the voltage adjustment submodule 2 and the voltage adjustment submodule 3; the voltage adjustment submodule 1, the voltage adjustment submodule 2 and the voltage adjustment submodule 3 are correspondingly connected to the interface 1, the interface 2 and the interface 3 of the data line; each voltage adjustment submodule includes a step-down subcircuit and a pass-through circuit; the interface 1, the interface 2 and the interface 3 are all USB Type-C interface, when interface 1, interface 2, and interface 3 are connected to a load, the first power management chip performs a protocol handshake with the loads connected to interface 1 and interface 2 through the CC line or DP line / DM line, and the second power management chip performs a protocol handshake with interface 3 through the CC line or DP line / DM line. The second power management chip sends the charging protocol information to the first power management chip. The first power management chip detects the charging protocol information of each load, determines the first voltage as the magnitude of the voltage output by the adapter based on the charging protocol voltage of each load, and generates first information. The first information includes information related to the magnitude of the adapter output voltage. The first power supply chip sends the first information to the second power management chip, and the second power management chip sends the first information to the power interface module. The power interface module interacts with the adapter, and the power interface module sends the first information to the adapter. The power interface module receives a voltage output by the adapter that is the same as the first voltage, and the power interface module transmits the adapter output voltage to each voltage adjustment sub-module. For voltage adjustment sub-module one and voltage adjustment sub-module two, the first power supply chip controls the buck circuit or the straight-through circuit to be turned on according to the first voltage and the charging protocol voltage of the load. If the buck sub-circuit is turned on, the first power management chip controls the buck sub-circuit through the FB voltage regulation function to adjust the first voltage to the charging protocol voltage corresponding to the load; for voltage adjustment sub-module three, the first power management chip sends the first voltage size to the third power management chip, and the third power management chip determines to turn on the straight-through circuit or the buck sub-circuit according to the first voltage size and the charging protocol voltage of the load connected to interface three. When the buck sub-circuit is turned on, the second power management chip controls the buck sub-circuit through the FB voltage regulation function to adjust the first voltage to the charging protocol voltage corresponding to the load. When three loads are connected at the same time, the three voltage adjustment sub-circuits are independently controlled to achieve protocol fast charging of multiple loads at the same time.

[0060] For example, the first power management chip and the second management chip can interact through the IIC bus, and the voltage power management chip and the third power management chip can interact through the Uart interface. In actual applications, the power management chips can also interact with each other in other ways, and the embodiments of the present application do not limit this.

[0061] refer to Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , Figure 6 A schematic diagram of the first power management chip and its peripheral circuits provided in an embodiment of the present application; Figure 7 A circuit diagram of the second power management chip and its peripheral circuits, and the power interface module provided in an embodiment of the present application; Figure 8 A circuit diagram of the third power management chip and its peripheral circuits, voltage adjustment submodule three, and interface three provided in an embodiment of the present application;

[0062] Figure 9 A circuit diagram of the voltage adjustment submodule 1 and interface 1 provided in an embodiment of the present application; Figure 10 This is a circuit diagram of the voltage adjustment submodule 2 and interface 2 provided in an embodiment of the present application.

[0063] The voltage adjustment submodule 1 includes: a step-down chip U1 and its peripheral circuits, and a first direct-pass circuit; the first direct-pass circuit includes: an NMOS tube Q1; port 12 of U1 is connected to the source of Q1 and then to the power interface module, port 15 of U1 is connected to the drain of Q1 and then to interface 1, and port 16 of U1 is connected to the first power management chip; the gate of Q1 is connected to the first management chip.

[0064] The second voltage adjustment submodule includes: a step-down chip U4 and its peripheral circuits, and a second direct-through circuit; the second direct-through circuit includes: a PMOS transistor Q10, a resistor R47, a resistor R51, and an NMOS transistor Q12; port 1 of U4 is connected to the source of Q10 and then to the power interface module, port 8 of U4 is connected to the drain of Q10 and then to interface 2, and port 6 of U4 is connected to the first power management chip; the gate of Q12 is connected to the first power management chip.

[0065] The voltage adjustment submodule three includes: a step-down chip U5 and its peripheral circuits, and a third direct-through circuit; the third direct-through circuit includes: a PMOS tube Q4, a resistor R36, a resistor R37, and an NMOS tube Q5; port 1 of U5 is connected to the source of Q4 and then to the power interface module, port 8 of U5 is connected to the drain of Q4 and then to interface three, port 6 of U5 is connected to the third power management chip; and the gate of Q5 is connected to the third power management chip.

[0066] The control module includes a first power management chip U3 and its peripheral circuits, a second power management chip U2 and its peripheral circuits, and a third power management chip U6 and its peripheral circuits; wherein,

[0067] Ports 16 and 17 of U3 are connected to ports 13 and 12 of U6 respectively, ports 4 and 10 of U3 are connected to ports 3 and 4 of U2 respectively, port 5 of U3 is connected to port 16 of U1, port 30 of U3 is connected to the gate of Q12, ports 20, 21, and 22 of U3 are connected to interface 1, port 18 of U3 is connected to interface 2, port 28 of U3 is connected to the gate of Q12, and port 8 of U3 is connected to port 6 of U4;

[0068] U2's 8-port is connected to the power interface module;

[0069] Port 5 of U6 is connected to port 6 of U5, port 23 of U6 is connected to the gate of Q5, and ports 15, 16, and 17 of U16 are connected to interface three.

[0070] The power interface module includes: J14, J15, J11, and J12 ports, among which J11 port is connected to voltage adjustment submodule 1, voltage adjustment submodule 2, and voltage adjustment submodule 3 respectively; J12 port is connected to U2.

[0071] Interface 1 includes: J1, J2, J3, J4, and J5 ports, among which J1 port is connected to voltage adjustment submodule 1, and J2, J3, and J4 ports are connected to U3.

[0072] Interface 2 includes: J9, J10, and J13 ports, among which J9 port is connected to the voltage adjustment submodule 2, and J10 port is connected to U3.

[0073] Interface three includes: J16, J17, J18, J19, and J20 ports, among which J16 port is connected to voltage adjustment sub-module three, and J17, J18, and J19 ports are correspondingly connected to ports 17, 16, and 15 of U6.

[0074] The control logic is as follows: U6 performs a protocol handshake with the load through interface three and sends the charging protocol information to U3; U3 performs a handshake with the loads connected to interface one and interface two respectively through interface one and interface two to obtain the charging protocol information of the loads connected to interface one and interface two. U3 obtains the first voltage according to the charging protocol information corresponding to the three loads. The first voltage is the maximum charging protocol voltage, generates the first information, and sends the first information to U2. U2 sends the first information to the power interface module. The power interface module interacts with the adapter according to the first information, receives the first voltage output by the adapter, and transmits the first voltage to the voltage adjustment submodule one, the voltage adjustment submodule two, and the voltage adjustment submodule three. For the voltage adjustment submodule one, if the first voltage is equal to the charging protocol voltage of the load, U3 sends a high-level signal to the first direct circuit to trigger the first direct circuit to turn on, U1 is short-circuited, and the voltage adjustment submodule one supplies power to the load through the direct circuit. If the first voltage is greater than the charging protocol voltage of the load, U3 sends a low-level signal to the first direct circuit to trigger the first direct circuit to turn off, and U3 sends a low-level signal to U1 The FB voltage regulation signal is sent to U1, so that U1 reduces the first voltage to the voltage required by the load and then charges the load; for the voltage regulation submodule 2, if the first voltage is equal to the charging protocol voltage of the load, U3 sends a high level signal to the second direct circuit, triggering the second direct circuit to be turned on, U4 is short-circuited, and the voltage regulation submodule 2 supplies power to the load through the direct circuit. If the first voltage is greater than the charging protocol voltage of the load, U3 sends a low level signal to the second direct circuit, triggering the second direct circuit to be turned off, and U3 sends the FB voltage regulation signal to U4, so that U4 reduces the first voltage to the required voltage. The voltage is stepped down to the voltage required by the load and then charged; for the voltage adjustment sub-module three, if the first voltage is equal to the charging protocol voltage of the load, U6 sends a high-level signal to the third direct circuit, triggering the third direct circuit to turn on, U5 is short-circuited, and the voltage adjustment sub-module three supplies power to the load through the direct circuit. If the first voltage is greater than the charging protocol voltage of the load, U6 sends a low-level signal to the third direct circuit, triggering the third direct circuit to turn off, and U6 sends an FB voltage adjustment signal to U5, so that U5 steps down the first voltage to the voltage required by the load and then charges the load.

[0075] The charging circuit provided in the embodiment of the present application enables the data line to act as an independent device, realizing secondary highway distribution based on the adapter. The data line is used as an independent charging link, which can realize charging of the buck-boost circuit, and adds a straight-through circuit, which can reduce heat and power loss while improving charging efficiency. It can realize high-power fast charging when multiple power terminals are charged at the same time, providing users with charging convenience and timeliness, and improving user experience.

[0076] refer to Figure 11 and Figure 12 , Figure 11A schematic diagram of the arrangement of the charging circuit provided in an embodiment of the present application; Figure 12 This is a schematic diagram of the printed circuit board (PCB) stacking structure provided in an embodiment of the present application. In this embodiment of the present application, the charging circuit can be provided on two PCBs. A row of pin headers is provided at each end of the two PCBs. The two PCBs are stacked and fixed by connecting the pin headers at both ends. The component surfaces of the PCBs are arranged relative to each other. In this way, the PCBs are connected and fixed by the pin headers at both ends. The stacked arrangement of the two PCBs achieves extreme compression in spatial volume, saving space. In addition, due to the presence of the pin headers at both ends, a gap is formed between the two component surfaces of the two PCBs, which is beneficial for heat dissipation of the charging circuit, is highly practical, and is compact and beautiful.

[0077] An embodiment of the present application further provides a data line, which includes the charging circuit provided in any embodiment of the present application.

[0078] In an embodiment of the present application, the data line includes at least two lines, each line is provided with an interface capable of connecting to a load, and the voltage adjustment module in the charging circuit is connected to at least two interfaces provided on the at least two lines for charging the load connected to the interface.

[0079] It should be noted that the “module” mentioned in the embodiments of the present application can be replaced by “circuit” or other descriptions, and the embodiments of the present application do not limit this.

[0080] In the several embodiments provided in this application, it should be understood that the disclosed systems and devices can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0081] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0082] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A charging circuit, characterized in that: The charging circuit includes: a control module and a voltage adjustment module; wherein the control module is connected to the voltage adjustment module; the voltage adjustment module is used to connect to a load; The control module is configured to, upon detecting that at least two of the at least two interfaces of the data line are respectively connected to a load, obtain charging protocol information of the at least two loads, and control the voltage adjustment module to output a voltage having the same magnitude as the charging protocol voltage of the at least two loads based on the charging protocol information, so as to charge the at least two loads through the interfaces. The data line includes at least two lines, each of which is provided with an interface capable of connecting to a load.

2. The charging circuit according to claim 1, wherein: The voltage adjustment module includes: at least two voltage adjustment submodules, one voltage adjustment submodule is provided on each circuit; The control module is used to control the voltage adjustment submodule on the line connected to the load to output a voltage with the same magnitude as the charging protocol voltage of the load.

3. The charging circuit according to claim 2, wherein: The voltage adjustment submodule includes one or more of the following circuits: The boost subcircuit is used to boost the input voltage to obtain a voltage that is the same as the charging protocol voltage of the load; The step-down subcircuit is used to step down the input voltage to obtain a voltage that is the same as the charging protocol voltage of the load; The pass-through circuit is used to make the input voltage the same as the charging protocol voltage of the load.

4. The charging circuit according to claim 2, wherein: In the case where the voltage adjustment submodule includes at least two of a boost subcircuit, a buck subcircuit, and a pass-through circuit, the voltage adjustment submodule further includes a switch circuit, and the control module is configured to: If the input voltage is greater than the charging protocol voltage of the load, controlling the switch circuit to connect the step-down sub-circuit and the load; If the input voltage is less than the charging protocol voltage of the load, controlling the switch circuit to connect the boost subcircuit and the load; If the input voltage is equal to the charging protocol voltage of the load, the switch circuit is controlled to connect the pass-through circuit and the load.

5. The charging circuit according to claim 4, characterized in that: If the control module controls the switch circuit to connect the step-down subcircuit and the load, or the control module controls the switch circuit to connect the step-up subcircuit and the load; the control module is further configured to: The FB voltage regulation mode is used to control the step-down subcircuit to reduce the input voltage to a voltage that is the same as the charging protocol voltage of the load; or, The FB voltage regulation method is used to control the boost subcircuit to increase the input voltage to a voltage that is the same as the charging protocol voltage of the load.

6. The charging circuit according to any one of claims 1 to 5, characterized in that: The charging circuit further includes a power interface module configured to receive a voltage from an adapter and output the received voltage to the voltage adjustment module.

7. The charging circuit according to claim 6, wherein: The control module is further configured to determine a voltage received from the adapter based on charging protocol information of each of the at least two loads, generate first information, and send the first information to the power interface module, wherein the first information includes information related to the determined voltage; The power interface module is configured to receive the first information sent by the control module, send the first information to the adapter, and receive the voltage of the determined voltage level from the adapter.

8. The charging circuit according to claim 7, characterized in that: The control module is configured to use the highest charging protocol voltage among the at least two loads as the determined voltage magnitude.

9. The charging circuit according to any one of claims 1 to 5, characterized in that: The charging circuit is provided on two PCB boards; wherein the two PCB boards are stacked and arranged by pin headers at both ends, and the component surfaces of the two PCB boards are arranged opposite to each other.

10. A data line, characterized in that: The data line includes the charging circuit according to any one of claims 1 to 9.

Images