Docking station circuit and docking station

Abstract

The utility model relates to a docking station circuit and a docking station. The docking station circuit comprises an MCU, a first MOS tube, a second MOS tube, a protocol chip, a power supply IC module, a voltage reduction integration module, a Type-C first female seat, a Type-C second female seat, a line concentration controller, an HDM I female seat, a USB-A female seat and a switch module. The protocol chip is connected with the power supply module, the switch module, the Type-C first female seat, the step-down integrated module and the second MOS tube; the first MOS tube is connected with the voltage reduction integrated module, the MCU and the Type-C second female seat. The MCU is connected with the protocol chip, the step-down integrated module, the first MOS tube, the Type-C second female seat, the line concentration controller and the HDM I female seat; the switch module, the USB-A female seat and the second MOS tube are connected in sequence; the power supply I C module is respectively connected with the power supply module, the Type-C second female seat, the USB-A female seat and the HDM I female seat, through the Type-C first female seat, the Type-C second female seat, the HDM I female seat and the USB-A female seat, charging, data transmission and high-definition video transmission are integrated, diversified requirements can be met, and the practicability of the equipment and the user experience are improved.

Description

Technical Field

[0001] The present application relates to the technical field of expansion docks, and in particular, to an expansion dock circuit and an expansion dock. Background Art

[0002] The Universal Serial Bus Association has released a new interface type for the Universal Serial Bus, Type-C, which is called USB Type-C. The physical design solves the problem of the need to distinguish the direction of insertion and the bloated interface that have appeared since the emergence of the USB interface. It can act as a USB interface, as well as a variety of interfaces such as video output and power supply. The compact Type-C integrates charging, data transmission and video output, solving the defect that current mobile phones and tablets do not have direct expansion video ports. The expansion dock, also known as a port replicator, is an external device designed for laptops. By duplicating and expanding the ports of laptops, it can connect laptops to a variety of external devices and improve the portability of laptops.

[0003] At present, the expansion dock has fewer functions and low practicality, and it is difficult to meet the multi-functional requirements such as charging, data transmission, and high-definition video transmission. Therefore, it is necessary to propose a circuit for an expansion dock to at least partially solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of the present application is to provide a docking station circuit and a docking station to solve the problem that the existing docking station is difficult to meet multiple requirements such as charging, data transmission, and high-definition video transmission.

[0005] In order to solve the above problems, the present application adopts the following technical solutions:

[0006] A first aspect of the present application provides an expansion dock circuit, which is connected to a power module, and the expansion dock circuit includes: an MCU, a first MOS tube, a second MOS tube, a protocol chip, a power IC module, a buck integrated module, a Type-C first female socket, a Type-C second female socket, a hub controller, an HDMI female socket, a USB-A female socket and a switch module; the protocol chip is respectively connected to the power module, the switch module, the Type-C first female socket, the buck integrated module and the second MOS tube; the first MOS tube is respectively connected to the buck integrated module, the MCU and the Type-C second female socket; the MCU is respectively connected to the protocol chip, the buck integrated module, the first MOS tube, the Type-C second female socket, the hub controller and the HDMI female socket; the switch module, the USB-A female socket and the second MOS tube are connected in sequence; the power IC module is respectively connected to the power module, the Type-C second female socket, the USB-A female socket and the HDMI female socket.

[0007] Through the Type-C first female connector, Type-C second female connector, HDMI female connector and USB-A female connector, charging, data transmission and high-definition video transmission are integrated, which can meet the diverse needs of various portable devices such as mobile phones and tablets, and improve the practicality of the device and user experience.

[0008] Furthermore, the MCU includes a controller chip and a capacitive reactance circuit, and the capacitive reactance circuit is located between the controller chip and the hub controller; the controller chip is respectively connected to the protocol chip, the step-down integrated module, the first MOS tube, the Type-C second female socket, the hub controller and the HDMI female socket.

[0009] By adding a capacitive circuit between the controller chip and the hub controller, noise and interference can be effectively suppressed, the signal transmission quality can be improved, and the stability of the entire circuit can be enhanced. The design of the capacitive circuit can reduce the loss during signal transmission, increase the data transmission rate, and make communication between devices faster and more efficient.

[0010] Furthermore, the MCU also includes a crystal oscillator circuit, one end of the crystal oscillator circuit is grounded, and the other end of the crystal oscillator circuit is connected to the controller chip.

[0011] By adding a crystal oscillator circuit to the MCU to provide a stable clock signal, the controller chip can accurately execute instructions and operations, thereby improving the accuracy and performance of the entire circuit. The design of the crystal oscillator circuit can ensure the synchronization between the various components within the system, making data transmission and processing more efficient and accurate, reducing system errors, improving the reliability and stability of the circuit, and reducing the probability of failure.

[0012] Further, the docking station circuit includes a first TVS tube, one end of the first TVS tube is grounded, and the other end of the first TVS tube is connected to the controller chip.

[0013] By integrating the first TVS tube in the expansion dock circuit, overvoltage and overcurrent can be effectively absorbed and suppressed, the impact of external interference on the circuit can be reduced, damage to the circuit and equipment caused by overvoltage and overcurrent can be prevented, potential safety hazards can be reduced, and the safety of users and equipment can be guaranteed.

[0014] Furthermore, the HDMI socket includes an HDMI chip and a plurality of second TVS tubes, one end of each of the plurality of second TVS tubes is grounded, and the other end of each of the plurality of second TVS tubes is connected to the HDMI chip.

[0015] By integrating multiple second TVS tubes in the HDMI mother socket, the HDMI chip is protected from external interference and voltage fluctuations, ensuring stable transmission of video signals and improving video clarity and quality.

[0016] Furthermore, the HDMI mother socket also includes a first Schottky diode, and the first Schottky diode is respectively connected to the power module and the HDMI chip.

[0017] By integrating the first Schottky diode in the HDMI mother socket, external interference is absorbed and suppressed, and damage to the HDMI chip is reduced, thereby improving the anti-interference ability of the circuit and preventing the high voltage in the power module from directly affecting the HDMI chip.

[0018] Furthermore, the Type-C second female socket includes a second power interface circuit and a connecting socket, the connecting socket is connected to the second power interface circuit, and the second power interface circuit is respectively connected to the first MOS tube, the hub controller, the MCU, the power IC module and the switch module.

[0019] By integrating the second power interface circuit and the connector, the Type-C second female connector can realize power input, data transmission and video output, thus improving the compatibility and versatility of the device.

[0020] Furthermore, the USB-A socket includes a USB-A power interface circuit and a detection circuit, the detection circuit is used to detect the access status of the HDMI socket, and the detection circuit is connected to the USB-A power interface circuit.

[0021] Because of the detection circuit, the access status of the HDMI socket is automatically detected and the operation mode of the circuit is adjusted accordingly, which improves the intelligence and response speed of the equipment.

[0022] Furthermore, the expansion dock circuit also includes an MCU input and output module, and the MCU input and output module is connected to the switch module.

[0023] By integrating the MCU input and output modules, the stability and reliability of the circuit can be improved, ensuring that the equipment can operate stably under various environmental conditions and reducing the probability of failure, thereby solving the problems of the expansion dock circuit's single function, low practicality, complex circuit design, and poor compatibility.

[0024] The present application also provides a docking station, comprising a docking station circuit as described in any one of the above items.

[0025] Compared with the prior art, the beneficial effects of the present application are: since the expansion dock circuit includes a step-down integrated module, a Type-C first female socket, a Type-C second female socket, an HDMI female socket, a USB-A female socket and a switch module, it integrates charging, data transmission and high-definition video transmission, and can meet the diverse needs of the device. The design of the power IC module and the step-down integrated module can efficiently manage the power supply. The introduction of the MCU realizes the intelligent control of the entire circuit, can monitor the system status in real time and make corresponding adjustments to ensure the safety of users and devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a docking station circuit provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of another expansion dock circuit provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of an MCU provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a hub controller provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of an HDMI female socket provided in an embodiment of the present application;

[0031] Figure 6A schematic diagram of a Type-C first female socket provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of a protection circuit provided by an embodiment of the present application, wherein a first TVS tube is shown;

[0033] Figure 8 A schematic diagram of a Type-C second female socket provided in an embodiment of the present application;

[0034] Fig. 9 A schematic diagram of a USB-A female socket provided in an embodiment of the present application;

[0035] Fig.10 A schematic diagram of an MCU input-output module provided in an embodiment of the present application; and

[0036] Fig.11 A schematic diagram of a power module provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 100, MCU; 110, controller chip; 120, capacitive reactance circuit; 130, crystal oscillator circuit; 200, first MOS tube; 300, second MOS tube; 400, protocol chip; 500, power IC module; 600, buck integrated module; 700, Type-C first female socket; 800, Type-C second female socket; 810, second power interface circuit; 820, connection socket; 900, hub controller; 1000, HDMI female socket; 1010, HDMI chip; 1020 second TVS tube; 1030, first Schottky diode 1100, USB-A female socket; 1110, USB-A power interface circuit; 1120, detection circuit; 1200, switch module; 1300 first TVS tube; 1400, MCU input and output module; 2000, power module. DETAILED DESCRIPTION

[0039] The specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0040] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0041] It should be understood that the orientation or position relationship is based on the orientation or position relationship shown in the drawings. These orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0042] As a versatile peripheral expansion solution, the expansion dock is designed to provide additional connection options for mobile computing devices, including but not limited to video output, high-speed data transmission and power supply. With the popularity of remote work, the expansion dock, as the peripheral expansion center of laptops, needs to provide sufficient power support while ensuring video quality to adapt to different working environments and equipment requirements.

[0043] It is important to understand that Thunderbolt provides high-speed data transmission and high-bandwidth video signals. Thunderbolt 4 can reach a transmission rate of 40Gbps and supports dual 4K or single 8K video output. The USB-C port is used for data and video transmission at the same time, and the DisplayPort 1.4 standard is supported at most, which meets the 4K@60Hz and even 8K video transmission. The HDMI 2.1 standard supports up to 48Gbps bandwidth, which can transmit uncompressed 8K video and dynamic HDR. The USB PD protocol supports a power range from 5V / 3A to 20V / 5A, up to 100W, ensuring that the docking station can not only charge the laptop, but also power high-power peripherals. The docking station uses an intelligent circuit design to adjust the power distribution according to the connected device to ensure the stability and quality of video output under different loads.

[0044] Figure 1 A schematic diagram of a docking station circuit provided in an embodiment of the present application, Figure 2 A schematic diagram of another expansion dock circuit provided in an embodiment of the present application, Figure 3 A schematic diagram of an MCU provided in an embodiment of the present application, Figure 4 A schematic diagram of a hub controller provided in an embodiment of the present application, Figure 5 A schematic diagram of an HDMI female socket provided in an embodiment of the present application, Figure 6 A schematic diagram of a Type-C first female socket provided in an embodiment of the present application, Figure 7 A schematic diagram of a protection circuit provided in an embodiment of the present application, wherein a first TVS tube is shown. Figure 8 A schematic diagram of a Type-C second female socket provided in an embodiment of the present application, Fig. 9 A schematic diagram of a USB-A female socket provided in an embodiment of the present application, Fig.10 A schematic diagram of an MCU input-output module provided in an embodiment of the present application, Fig.11A schematic diagram of a power module provided in an embodiment of the present application. Figures 1 to 11 As shown, an embodiment of the present application provides an expansion dock circuit, which is connected to a power module 2000. The expansion dock circuit includes: an MCU 100, a first MOS tube 200, a second MOS tube 300, a protocol chip 400, a power IC module 500, a buck integrated module 600, a Type-C first mother socket 700, a Type-C second mother socket 800, a hub controller 900, an HDMI mother socket 1000, a USB-A mother socket 1100 and a switch module 1200; the protocol chip 400 is respectively connected to the power module 2000, the switch module 1200, the Type-C first mother socket 700, the buck integrated module 600 and the second MOS tube 300; the first MOS tube 200 is respectively connected to the buck integrated module 600, the MCU 100 and the Type-C second mother socket 800; the MCU 100 is respectively connected to the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second mother socket 800, the hub controller 900 and the HDM I female socket 1000; the switch module 1200, the USB-A female socket 1100 and the second MOS tube 300 are connected in sequence; the power IC module 500 is respectively connected to the power module 2000, the Type-C second female socket 800, the USB-A female socket 1100 and the HDMI female socket 1000.

[0045] Specifically, the power module 2000 is connected to the expansion dock circuit to ensure that the circuit obtains a stable power supply. The MCU 100, as the control center of the circuit, is responsible for coordinating and controlling the operation of the entire circuit. The first MOS tube 200 and the second MOS tube 300 are used to control the flow direction of the current to ensure the stable operation of the circuit. The protection circuit is connected to the expansion dock circuit. For example, the protection circuit is provided with a first TVS tube 1300. The power IC module 500 is used to manage the power supply, including voltage regulation and current control. The buck integrated module 600 is used to convert the input voltage into a voltage suitable for the operation of the circuit and the device. The Type-C first female socket 700 and the Type-C second female socket 800 are used to connect external devices, support the USB Type-C interface, and realize data transmission and power supply. The HDMI female socket 1000 is used to connect external display devices and support high-definition video output. The USB-A female socket 1100 is used to connect USB devices and support data transmission and power supply.

[0046] For example, the power module 2000 is connected to the docking station circuit to ensure that the circuit obtains a stable power supply, the MCU 100 is connected to the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second mother socket 800, the hub controller 900 and the HDMI mother socket 1000, so that the MCU 100 can control and coordinate the operation of the entire circuit, the protocol chip 400 is connected to the power module 2000, the switch module 1200, the Type-C first mother socket 700, the buck integrated module 600 and the second MOS tube 300 to process and convert data signals, and the power IC module 500 is connected to the power module 2000, the Type-C second mother socket 800, the USB-A mother socket 1100 and the HDMI mother socket 1000 to manage the power supply. Among them, the protocol chip 400 includes a protocol IC and a protocol_IO part, the power module 2000 provides a 24V voltage from the VI N pin, and the buck integrated module 600 is a BUCK_IC. In order to distinguish different positions of MOS, the first MOS transistor 200 and the second MOS transistor 300 are arranged, which should not be understood as a restriction on the order. Figure 2 MOS is shown in the table. Figure 2 As shown, the power IC module 500 is a power supply_IC, the hub controller 900 is a MUX, the Type-C first female socket 700 is a TYPE-C female socket C1, the Type-C second female socket 800 is a TYPE-C female socket C2, the HDM I female socket 1000 is a HDM I female socket, the switch module 1200 includes a switch, the USB-A3.0 female socket is a USB-A female socket 1100, and the MCU input and output module 1400 is MCU_IO (see Figure 2 ), the buck integrated module 600 is BUCK_I C.

[0047] The step-down integrated module 600 is connected to the first MOS tube 200 and the MCU100 to convert the input voltage into a voltage suitable for the operation of the circuit and the device. The Type-C first female socket 700 and the Type-C second female socket 800 are connected to the protocol chip 400 and the MCU100. The hub controller 900 is connected to the MCU100 and the HDMI female socket 1000 to manage and control multiple devices connected to the docking station. The HDMI female socket 1000 is connected to the MCU100 and the USB-A female socket 1100 to connect an external display device. The USB-A female socket 1100 is connected to the MCU100 and the switch module 1200. The switch module 1200 is connected to the second MOS tube 300, the USB-A female socket 1100 and the power IC module 500 to control different parts of the circuit.

[0048] Through the Type-C first socket 700, the Type-C second socket 800, the HDMI socket 1000 and the USB-A socket 1100, charging, data transmission and high-definition video transmission are integrated, which can meet the diverse needs of various portable devices such as mobile phones and tablets, and improve the practicality of the equipment and user experience.

[0049] The design of the power IC module 500 and the buck integrated module 600 can efficiently manage the power supply and ensure the stable operation of the device during charging and data transmission. At the same time, it can easily connect to a variety of external devices, improving the flexibility and convenience of connection. The design of the hub controller 900 and the switch module 1200 ensures the stability and reliability of data transmission, reduces signal interference and transmission errors, and improves the quality of data transmission. The introduction of MCU100 realizes intelligent control of the entire circuit, can monitor the system status in real time and make corresponding adjustments. At the same time, the protection mechanism in the circuit design can effectively prevent safety hazards such as overload and short circuit, and ensure the safety of users and equipment.

[0050] It should be noted that the control part of the embodiment of the present application is centered on MCU100 and protocol chip 400. MCU100 detects the inserted device to determine power distribution and signal transmission; the docking station provides three optional fast charging interfaces and two signal transmission interfaces. Among them, the A port (USB-A female socket) is compatible with signal transmission and fast charging; the C1 interface (Type-C first female socket) is only used as a fast charging interface to charge external devices; the C2 interface (Type-C second female socket) is compatible with fast charging and signal transmission; the HDMI interface (HDMI female socket) only transmits audio signals. At the same time, it also supports the one-line function. After the device is inserted, the C2 interface (Type-C second female socket) can not only charge the device with PD, but also read the device's signal and distribute it to the other two signal transmission interfaces through MCU100 for signal transmission.

[0051] In some embodiments, MCU100 includes a controller chip 110 and a capacitive reactance circuit 120, and the capacitive reactance circuit 120 is located between the controller chip 110 and the hub controller 900; the controller chip 110 is respectively connected to the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second female socket 300, the hub controller 900 and the HDMI female socket 1000.

[0052] Specifically, the controller chip 110 serves as the core of the MCU 100. The controller chip 110 is responsible for processing and executing various operations and control instructions in the circuit. The capacitive reactance circuit 120 is located between the controller chip 110 and the hub controller 900 and is used to absorb and suppress external interference to ensure stable operation of the circuit. The HDMI female socket 1000 is used to connect an external display device and supports high-definition video output.

[0053] For example, the controller chip 110 is connected to the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second female socket 300, the hub controller 900 and the HDMI female socket 1000, so that the controller chip 110 can control and coordinate the operation of the entire circuit. A capacitive reactance circuit 120 is added between the controller chip 110 and the hub controller 900, and the controller chip 110 is connected to the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second female socket 300, the hub controller 900 and the HDMI female socket 1000.

[0054] By adding a capacitive reactance circuit 120 between the controller chip 110 and the hub controller 900, noise and interference can be effectively suppressed, the signal transmission quality can be improved, and the stability of the entire circuit can be enhanced. The design of the capacitive reactance circuit can reduce the loss during signal transmission, increase the data transmission rate, and make communication between devices faster and more efficient.

[0055] In some embodiments, the MCU 100 further includes a crystal oscillator circuit 130 , one end of the crystal oscillator circuit 130 is grounded, and the other end of the crystal oscillator circuit 130 is connected to the controller chip 110 .

[0056] Specifically, the crystal oscillator circuit 130 is used to provide a stable clock signal for the controller chip 110 to ensure that the controller chip 110 can accurately execute instructions and operations. For example, the crystal oscillator circuit 130 is integrated in the MCU 100, one end of the crystal oscillator circuit 130 is grounded, and the other end is connected to the controller chip 110 to provide a stable clock signal for the controller chip 110. The controller chip 110 controls and coordinates the entire circuit by connecting to the crystal oscillator circuit 130, the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second mother socket 300, the hub controller 900 and the HDMI mother socket 1000. The protocol chip 400 processes and converts data signals by connecting to the controller chip 110, the buck integrated module 600, the first MOS tube 200, the Type-C second mother socket 300 and the hub controller 900.

[0057] By adding a crystal oscillator circuit 130 to the MCU 100 to provide a stable clock signal, the controller chip can be ensured to accurately execute instructions and operations, thereby improving the accuracy and performance of the entire circuit. The design of the crystal oscillator circuit 130 can ensure the synchronization between the various components within the system, making data transmission and processing more efficient and accurate, reducing system errors, improving the reliability and stability of the circuit, and reducing the probability of failure.

[0058] In some embodiments, the docking station circuit includes a first TVS tube 1300 , one end of the first TVS tube 1300 is grounded, and the other end of the first TVS tube 1300 is connected to the controller chip 110 .

[0059] Specifically, the first TVS tube 1300 is used as a protection element, and the first TVS tube 1300 is used to absorb and suppress overvoltage and overcurrent, and protect the controller chip 110 and other circuit elements from damage. For example, one end of the first TVS tube 1300 is grounded, and the other end is connected to the controller chip 110. The first TVS tube 1300 can respond quickly, absorb and suppress these high voltages and high currents, and protect the controller chip 110 and other circuit elements from damage. The controller chip 110 is connected to the first TVS tube 1300, the protocol chip 400, the buck integrated module 600, the first MOS tube 200, the Type-C second mother socket 300, the hub controller 900 and the HDMI mother socket 1000.

[0060] By integrating the first TVS tube 1300 in the expansion dock circuit, overvoltage and overcurrent can be effectively absorbed and suppressed, the impact of external interference on the circuit can be reduced, damage to the circuit and equipment caused by overvoltage and overcurrent can be prevented, potential safety hazards can be reduced, and the safety of users and equipment can be guaranteed.

[0061] In some embodiments, the HDMI socket 1000 includes an HDMI chip 1010 and multiple second TVS tubes 1020 , one end of the multiple second TVS tubes 1020 are grounded, and the other ends of the multiple second TVS tubes 1020 are connected to the HDMI chip 1010 .

[0062] Specifically, the plurality of second TVS tubes 1020 are used to absorb and suppress overvoltage and overcurrent, protect the HDMI chip 1010 and other circuit elements from damage, and integrate the HDMI chip 1010 and the plurality of second TVS tubes 1020 in the HDMI mother socket 1000, one end of the plurality of second TVS tubes 1020 are all grounded, and the other end is connected to the HDMI chip 1010. One end of the plurality of second TVS tubes 1020 are all grounded, and the other end is connected to the HDMI chip 1010, to ensure that when overvoltage and overcurrent occur in the circuit, the plurality of second TVS tubes 1020 can respond quickly, absorb and suppress these high voltages and high currents, and the HDMI mother socket 1000 is connected to the controller chip 110, the buck integrated module 600, the first MOS tube 200, the Type-C second mother socket 300, the hub controller 900 and the USB-A mother socket 1100.

[0063] By integrating a plurality of second TVS tubes 1020 in the HDMI mother socket 1000, the HDMI chip 1010 is protected from external interference and voltage fluctuations, thereby ensuring stable transmission of video signals and improving the clarity and quality of the video.

[0064] In some embodiments, the HDMI socket 1000 further includes a first Schottky diode 1030, and the first Schottky diode 1030 is connected to the power module 2000 and the HDMI chip 1010 respectively.

[0065] Specifically, the first Schottky diode 1030 is used as a protection element. The first Schottky diode 1030 is used to prevent the high voltage in the power module 2000 from directly affecting the HDMI chip 1010, thereby protecting the HDMI chip 1010 from damage.

[0066] The first Schottky diode 1030 is integrated in the HDMI mother socket 1000, and the first Schottky diode 1030 is respectively connected to the power module 2000 and the HDMI chip 1010 to provide power isolation protection for the HDMI chip 1010. The first Schottky diode 1030 is respectively connected to the power module 2000 and the HDMI chip 1010 to ensure that the first Schottky diode 1030 can respond quickly when the power module 2000 has a high voltage, so as to prevent the high voltage from directly affecting the HDMI chip 1010. The HDMI chip 1010 processes and converts the HDMI signal by connecting to the first Schottky diode 1030.

[0067] By integrating the first Schottky diode 1030 in the HDMI mother socket 1000, external interference is absorbed and suppressed, and damage to the HDMI chip 1010 is reduced, thereby improving the anti-interference ability of the circuit and preventing the high voltage in the power module from directly affecting the HDMI chip 1010.

[0068] In some embodiments, the Type-C second female socket 800 includes a second power interface circuit 810 and a connecting socket 820, the connecting socket 820 is connected to the second power interface circuit 810, and the second power interface circuit 810 is respectively connected to the first MOS tube 200, the hub controller 900, the MCU100, the power IC module 500 and the switch module 1200.

[0069] Specifically, the second power interface circuit 810 serves as the core of the Type-C second female socket to ensure the transmission quality and stability of the power supply. The second power interface circuit 810 and the connection socket 820 are integrated in the Type-C second female socket 800, and the connection socket 820 is connected to the second power interface circuit 810 to provide power supply and data transmission for the connection socket 820. The second power interface circuit 810 realizes the processing and conversion of the power signal by connecting to the first MOS tube 200, the hub controller 900, the MCU100, the power IC module 500 and the switch module 1200. The connection socket 820 is connected to the second power interface circuit 810 to connect external devices and support the USB Type-C interface.

[0070] By integrating the second power interface circuit 810 and the connection socket 820, the Type-C second female socket 800 can realize power input, data transmission and video output, thereby improving the compatibility and versatility of the device.

[0071] In some embodiments, the USB-A socket 1100 includes a USB-A power interface circuit 1110 and a detection circuit 1120. The detection circuit 1120 is used to detect the access status of the USB-A socket 1100, and the detection circuit 1120 is connected to the USB-A power interface circuit 1110.

[0072] Specifically, the USB-A power interface circuit 1110 serves as the core of the USB-A socket. The USB-A power interface circuit 1110 is responsible for processing and converting USB power signals to ensure the transmission quality and stability of the power supply. The detection circuit 1120 serves as an intelligent detection element. The detection circuit 1120 is used to automatically detect the access status of the HDM I socket 1000 and adjust the circuit operation mode according to the detection results.

[0073] For example, a USB-A power interface circuit 1110 and a detection circuit 1120 are integrated in a USB-A socket 1100. The detection circuit 1120 is connected to the USB-A power interface circuit 1110 to provide power supply and intelligent detection functions for the USB-A socket 1100. The detection circuit 1120 automatically detects the access status of the HDM I socket 1000 by connecting to the USB-A power interface circuit 1110, and adjusts the operation mode of the circuit according to the detection result. The USB-A power interface circuit 1110 is connected to the controller chip 110, the step-down integrated module 600, the first MOS tube 200, the Type-C second socket 800, the hub controller 900 and the HDM I socket 1000.

[0074] Since a detection circuit is provided, the access status of the HDMI socket 1100 is automatically detected, and the operation mode of the circuit is adjusted accordingly, thereby improving the intelligence and response speed of the equipment.

[0075] In some embodiments, the expansion dock circuit further includes an MCU input-output module 1400 , and the MCU input-output module 1400 is connected to the switch module 1200 .

[0076] Specifically, the MCU input-output module 1400** is a part of the expansion dock circuit. The MCU input-output module 1400 is responsible for processing and converting input-output signals, and the switch module 1200 controls different parts of the circuit to ensure the stable operation of the circuit. For example, the MCU input-output module 1400 and the switch module 1200 are integrated in the expansion dock circuit, the MCU input-output module 1400 is connected to the switch module 1200, the MCU input-output module 1400 is connected to the switch module 1200, the switch module 1200 is connected to the MCU input-output module 1400, and the MCU input-output module 1400 is connected to the first MOS tube 200, the hub controller 900, the MCU 100, the power IC module 500 and the switch module 1200 to realize the processing and conversion of the input-output signals.

[0077] By integrating the MCU input and output module 1400, the stability and reliability of the circuit can be improved, ensuring that the equipment can operate stably under various environmental conditions and reducing the probability of failure, thereby solving the problems of the expansion dock circuit's single function, low practicality, complex circuit design, and poor compatibility.

[0078] Another aspect of the embodiments of the present application further provides a docking station, comprising a docking station circuit as described in any one of the above items.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the same. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present application.

Claims

1. A docking station circuit, the docking station circuit is connected to a power module, characterized in that: The expansion dock circuit includes: an MCU, a first MOS tube, a second MOS tube, a protocol chip, a power IC module, a step-down integrated module, a Type-C first female socket, a Type-C second female socket, a hub controller, an HDMI female socket, a USB-A female socket and a switch module; the protocol chip is respectively connected to the power module, the switch module, the Type-C first female socket, the step-down integrated module and the second MOS tube; the first MOS tube is respectively connected to the step-down integrated module, the MCU and the Type-C second female socket; the MCU is respectively connected to the protocol chip, the step-down integrated module, the first MOS tube, the Type-C second female socket, the hub controller and the HDMI female socket; the switch module, the USB-A female socket and the second MOS tube are connected in sequence; the power IC module is respectively connected to the power module, the Type-C second female socket, the USB-A female socket and the HDMI female socket.

2. The expansion dock circuit according to claim 1, characterized in that: The MCU includes a controller chip and a capacitive reactance circuit, wherein the capacitive reactance circuit is located between the controller chip and the hub controller; the controller chip is respectively connected to the protocol chip, the step-down integrated module, the first MOS tube, the Type-C second female socket, the hub controller and the HDMI female socket.

3. The expansion dock circuit according to claim 2, characterized in that: The MCU further includes a crystal oscillator circuit, one end of which is grounded, and the other end of which is connected to the controller chip.

4. The expansion dock circuit according to claim 2, characterized in that: The docking station circuit includes a first TVS tube, one end of the first TVS tube is grounded, and the other end of the first TVS tube is connected to the controller chip.

5. The expansion dock circuit according to claim 2, characterized in that: The HDMI female socket includes an HDMI chip and a plurality of second TVS tubes, one ends of the plurality of second TVS tubes are all grounded, and the other ends of the plurality of second TVS tubes are connected to the HDMI chip.

6. The expansion dock circuit according to claim 5, characterized in that: The HDMI female socket also includes a first Schottky diode, and the first Schottky diode is respectively connected to the power module and the HDMI chip.

7. The expansion dock circuit according to claim 2, characterized in that: The Type-C second female socket includes a second power interface circuit and a connecting socket, the connecting socket is connected to the second power interface circuit, and the second power interface circuit is respectively connected to the first MOS tube, the hub controller, the MCU, the power IC module and the switch module.

8. The expansion dock circuit according to claim 2, characterized in that: The USB-A socket includes a USB-A power interface circuit and a detection circuit. The detection circuit is used to detect the access status of the HDMI socket, and the detection circuit is connected to the USB-A power interface circuit.

9. The expansion dock circuit according to claim 2, characterized in that: The expansion dock circuit also includes an MCU input and output module, and the MCU input and output module is connected to the switch module.

10. A docking station, characterized in that: Comprising the expansion dock circuit as described in any one of claims 1 to 9.

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