A full-function type-c wire extension control circuit, device and control method

Abstract

The application discloses a full-function Typec wire extension control circuit, a device and a control method, and relates to the technical field of Typec wire extension control circuits.The full-function Typec wire extension control circuit comprises a main control module, a first Typec interface module, a second Typec interface module, a positive-negative plug control module, a signal enhancement module, a first PD protocol control module and a second PD protocol control module.The first Typec interface module is electrically connected with the positive-negative plug control module and the first PD protocol control module; the positive-negative plug control module is electrically connected with the main control module; and the first PD protocol control module is electrically connected with the main control module.The signal enhancement module is electrically connected with the positive-negative plug control module, the main control module and the second Typec interface module; and the second PD protocol control module is electrically connected with the main control module and the second Typec interface module.The application can extend the length of a TypeC wire, and can enhance the quality of a video transmission signal; in addition, the application can be compatible with display devices of different specifications, has strong compatibility and can be widely applied.

Description

Technical Field

[0001] This invention relates to the field of Type-C technology, and in particular to a full-function Type-C cable extension control circuit, device, and control method. Background Technology

[0002] With the increasing popularity of Type-C interface devices, the quantity and variety of Type-C cables are growing daily. In common applications, Type-C cables can be divided into the following categories: 1) Type-C power cables with only power transmission function; 2) Type-C cables with power transmission and USB 2.0 transmission functions; 3) Full-featured Type-C cables with power transmission, USB 3.2 Gen2 transmission, and video transmission.

[0003] However, in the existing technology, full-featured Type-C cables need to transmit USB signals of up to 10gbps and 4K 60Hz video signals when in use. As the cable length increases in different scenarios or the cable material differs, the signal will attenuate and interfere, the USB file transfer rate will decrease, the video picture quality will decrease, and the screen will flicker or fail to display images, which will greatly reduce the user experience.

[0004] In addition, the video DP signal has different specifications for display devices, namely 1080P and 4K. This information is contained in the PD communication protocol message. Therefore, if power transmission and video transmission are to be compatible with display devices of different specifications, both the front and rear Type-C interfaces must have PD protocol communication function. However, most extension cables on the market do not have this function and can only output customized specifications. Summary of the Invention

[0005] The purpose of this application is to provide a full-function Type-C cable extension control circuit and device. In this solution, the length of the Type-C cable can be extended, thereby enhancing the quality of video transmission signals. In addition, this invention is also compatible with display devices of different specifications, has strong compatibility, and is applicable to a wide range of scenarios.

[0006] To address the aforementioned technical problems, this application provides a full-function Type-C cable extension control circuit, including a main control module, a first Type-C interface module, a second Type-C interface module, a forward / reverse insertion control module, a signal enhancement module, a first PD protocol control module, and a second PD protocol control module;

[0007] The first Typec interface module is electrically connected to the reversible insertion control module and the first PD protocol control module, respectively. The reversible insertion control module is electrically connected to the main control module, and the first PD protocol control module is electrically connected to the main control module.

[0008] The signal enhancement module is electrically connected to the forward / reverse insertion control module, the main control module, and the second Typec interface module, respectively. The second PD protocol control module is electrically connected to the main control module and the second Typec interface module, respectively.

[0009] Preferably, the full-function Type-C cable extension control circuit further includes a first switch module and a second switch module;

[0010] The first switch module is electrically connected to the first Typec interface module, the reversible switch module, and the main control module, respectively.

[0011] The second switch module is electrically connected to the signal enhancement module, the second Type-C interface module, and the main control module, respectively.

[0012] Preferably, the first Type-C interface module includes a first Type-C interface and a first electrostatic discharge protection unit;

[0013] The first Type-C interface is electrically connected to the first electrostatic discharge (ESD) protection unit, and the first ESD protection unit is electrically connected to the reversible insertion control module, the first PD protocol control module, and the first switch module, respectively.

[0014] Preferably, the second Type-C interface module includes a second Type-C interface and a second electrostatic discharge protection unit;

[0015] The second Type-C interface is electrically connected to the second electrostatic discharge protection unit, and the second electrostatic discharge protection unit is electrically connected to the signal enhancement module, the second PD protocol control module, and the second switch module, respectively.

[0016] Preferably, the signal enhancement module includes a signal enhancer, a clock unit, an input processing unit, and an output processing unit;

[0017] The signal amplifier is electrically connected to the clock unit, the input processing unit, and the output processing unit, respectively. The input processing unit is electrically connected to the reversible insertion control module, and the output processing unit is electrically connected to the second Type-C interface module.

[0018] Preferably, the first PD protocol control module includes a first PD protocol controller, a first resistor, a second resistor, a third resistor, and a fourth resistor;

[0019] The first PD protocol controller is electrically connected to the first Typec interface module. The first end of the first resistor is electrically connected to the VBUS pin of the first PD protocol controller. The first end of the second resistor is electrically connected to the VCONN pin of the first PD protocol controller. The first ends of the third resistor and the fourth resistor are both electrically connected to the SEL pin of the first PD protocol controller. The second ends of the first resistor, the second resistor, and the third resistor are electrically connected to the main control module. The second end of the fourth resistor is grounded.

[0020] Preferably, the second PD protocol control module includes a second PD protocol controller, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor;

[0021] The second PD protocol controller is electrically connected to the second Typec interface module. The first end of the fifth resistor is electrically connected to the VBUS pin of the second PD protocol controller. The first end of the sixth resistor is electrically connected to the VCONN pin of the second PD protocol controller. The first ends of the seventh resistor and the eighth resistor are both electrically connected to the SEL pin of the second PD protocol controller. The second ends of the fifth resistor, the sixth resistor, and the seventh resistor are electrically connected to the main control module. The second end of the eighth resistor is grounded.

[0022] Preferably, the first electrostatic discharge protection unit includes a first electrostatic discharge protection subunit, a second electrostatic discharge protection subunit, and a third electrostatic discharge protection subunit;

[0023] The first electrostatic discharge (ESD) protection subunit is electrically connected to the first Type-C interface and the reversible plug control module, the second ESD protection subunit is electrically connected to the first Type-C interface and the reversible plug control module, and the third ESD protection subunit is electrically connected to the first Type-C interface, the first switch module, and the first PD protocol control module.

[0024] To address the aforementioned technical problems, this application provides a full-function Type-C cable extension control device, including the aforementioned full-function Type-C cable extension control circuit.

[0025] To address the aforementioned technical problems, this application provides a full-function Type-C cable extension control method, applied to the aforementioned full-function Type-C cable extension control circuit, the control method comprising:

[0026] The first Type-C interface module is connected to the power supply and signal source equipment, and the second Type-C interface module is connected to the display terminal equipment.

[0027] The first PD protocol control module communicates with the power supply and signal source equipment regarding power and image data parameters.

[0028] The second PD protocol control module communicates with the display terminal device regarding power and image data parameters.

[0029] The correct orientation of the device connected to the first Typec interface module is determined, and the wiring sequence is changed when the device is connected in the wrong orientation.

[0030] The signal connected to the first Type-C interface module is amplified to reduce signal jitter;

[0031] Determine the correct insertion orientation and change the wiring sequence for the device connected to the second Type-C interface module;

[0032] When the power supply and signal source equipment match the power parameters and image data parameters of the display terminal equipment, the control system maintains the current configuration and performs normal fast charging and display data transmission.

[0033] When the power supply and signal source devices do not match the power parameters and image data parameters of the display terminal device, the communication of the first Type-C interface module is restarted, and the power and image data parameters of the first Type-C interface module are reconfigured to ensure compatibility with display terminal devices of different specifications.

[0034] The full-function Type-C cable extension control circuit of the present invention has the following beneficial effects. The full-function Type-C cable extension control circuit disclosed in this invention includes: a main control module, a first Type-C interface module, a second Type-C interface module, a reversible insertion control module, a signal enhancement module, a first PD protocol control module, and a second PD protocol control module. The first Type-C interface module is electrically connected to both the reversible insertion control module and the first PD protocol control module; the reversible insertion control module is electrically connected to the main control module; and the first PD protocol control module is electrically connected to the main control module. The signal enhancement module is electrically connected to the reversible insertion control module, the main control module, and the second Type-C interface module; and the second PD protocol control module is electrically connected to both the main control module and the second Type-C interface module. Therefore, the present invention can extend the length of Type-C cables, thereby enhancing the quality of video transmission signals. Furthermore, the present invention is compatible with display devices of different specifications, exhibiting strong compatibility and wide applicability. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention;

[0038] Figure 3 This is a circuit diagram of the first Type-C interface of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention.

[0039] Figure 4 This is a circuit diagram of the first electrostatic discharge protection unit of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention.

[0040] Figure 5 This is a circuit diagram of the second Type-C interface of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention.

[0041] Figure 6 This is a circuit diagram of a signal enhancement module of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention.

[0042] Figure 7 This is a circuit diagram of the first PD protocol control module of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention.

[0043] Figure 8 This is a circuit diagram of the second PD protocol control module of a full-function Type-C cable extension control circuit according to a preferred embodiment of the present invention.

[0044] Figure 9 This is a flowchart of a full-function Type-C cable extension control method according to a preferred embodiment of the present invention. Detailed Implementation

[0045] The core of this application is to provide a full-function Type-C cable extension control circuit and device. In this solution, the length of the Type-C cable can be extended, thereby enhancing the quality of video transmission signals. In addition, this invention is also compatible with display devices of different specifications, has strong compatibility, and is applicable to a wide range of scenarios.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] Please see Figure 1 , Figure 1 The schematic diagram of a full-function Type-C cable extension control circuit provided in this application includes a main control module 1, a first Type-C interface module 2, a second Type-C interface module 3, a forward / reverse insertion control module 4, a signal enhancement module 5, a first PD protocol control module 6, and a second PD protocol control module 7.

[0048] The first Typec interface module 2 is electrically connected to the reversible insertion control module 4 and the first PD protocol control module 6 respectively. The reversible insertion control module 4 is electrically connected to the main control module 1, and the first PD protocol control module 6 is electrically connected to the main control module 1.

[0049] The signal enhancement module 5 is electrically connected to the forward / reverse insertion control module 4, the main control module 1, and the second Type-C interface module 3, respectively. The second PD protocol control module 7 is electrically connected to the main control module 1 and the second Type-C interface module 3, respectively.

[0050] In existing technologies, full-featured Type-C cables need to transmit USB signals up to 10Gbps and 4K 60Hz video signals. As the cable length increases in different scenarios or as the cable material varies, signal attenuation and interference occur. Existing full-featured Type-C cables are incompatible with different display devices and cannot meet user needs.

[0051] To address the aforementioned shortcomings, this application utilizes the cooperation of a main control module 1, a first Type-C interface module 2, a second Type-C interface module 3, a forward / reverse insertion control module 4, a signal enhancement module 5, a first PD protocol control module 6, and a second PD protocol control module 7 to extend the length of the Type-C cable, ensuring compatibility with display devices of different specifications, strong compatibility, and wide applicability.

[0052] Specifically, in this embodiment, the main control module 1 is an MCU (Microcontroller Unit, also known as a Single-Chip Microcomputer or a microcontroller, which is a chip-level computer formed by appropriately reducing the frequency and specifications of a Central Processing Unit (CPU) and integrating peripheral interfaces such as memory, timer, USB, A / D conversion, UART, PLC, DMA, and even LCD driving circuitry onto a single chip). It is understood that the specific model of the main control module 1 is not limited here.

[0053] Specifically, in this embodiment, the first Type-C interface module 2 is used to connect to the power supply and signal source device, the second Type-C interface module 3 is used to connect to the display terminal device, and the main control module 1 is used to control the first PD protocol control module 6 to communicate with the power supply and signal source device for power and image data parameters, and to control the second PD protocol control module 7 to communicate with the display terminal device for power and image data parameters. When the power supply and signal source device matches the power parameters and image data parameters of the display terminal device, the main control module 1 controls the system to maintain the current configuration and perform normal fast charging and display data transmission. When the power supply and signal source device does not match the power parameters and image data parameters of the display terminal device, the main control module 1 restarts the communication of the first Type-C interface module 2 and reconfigures the power parameters and image data parameters of the first Type-C interface module 2 to be compatible with display terminal devices of different specifications.

[0054] Specifically, in this embodiment, the main control module 1 communicates with the first PD protocol control module 6 to determine the correct or reverse insertion of the device connected to the first Typec interface module 2. The correct or reverse insertion control module 4 is used to change the wiring sequence when the device is inserted in reverse. The signal enhancement module 5 is used to enhance the signal connected to the first Typec interface module 2 and reduce signal jitter. At the same time, the signal enhancement module 5 is also used to determine the correct or reverse insertion and change the wiring sequence of the device connected to the second Typec interface module 3.

[0055] In summary, this application provides a full-function Type-C cable extension control circuit. This solution includes a main control module 1, a first Type-C interface module 2, a second Type-C interface module 3, a reversible insertion control module 4, a signal enhancement module 5, a first PD protocol control module 6, and a second PD protocol control module 7. The first Type-C interface module 2 is electrically connected to both the reversible insertion control module 4 and the first PD protocol control module 6. The reversible insertion control module 4 is electrically connected to the main control module 1, and the first PD protocol control module 6 is electrically connected to the main control module 1. The signal enhancement module 5 is electrically connected to the reversible insertion control module 4, the main control module 1, and the second Type-C interface module 3. The second PD protocol control module 7 is electrically connected to both the main control module 1 and the second Type-C interface module 3. Therefore, this invention can extend the length of Type-C cables, thereby enhancing the quality of video transmission signals. Furthermore, this invention is compatible with display devices of different specifications, exhibiting strong compatibility and a wide range of applications.

[0056] Based on the above embodiments:

[0057] Please refer to Figure 2 , Figure 2 This is a schematic diagram of a full-function Type-C cable extension control circuit provided in this application.

[0058] In a preferred embodiment, a full-function Type-C cable extension control circuit further includes a first switch module 8 and a second switch module 9;

[0059] The first switch module 8 is electrically connected to the first Typec interface module 2, the reversible switch module and the main control module 1 respectively;

[0060] The second switch module 9 is electrically connected to the signal enhancement module 5, the second Type-C interface module 3, and the main control module 1, respectively.

[0061] Specifically, in this embodiment, when the first Typec interface module 2 is used to connect to the power supply and signal source device, the first switch module 8 is used to realize the switching control of the signal transmission of the power supply and signal source device. That is, when the first switch module 8 is turned on, the power supply and signal source device signal begins to transmit signals.

[0062] Specifically, in this embodiment, when the second Typec interface module 3 is used to connect to the display terminal device, the second switch control module 9 is used to realize the switch control of the display terminal device receiving power and display signal transmission. That is, when the second switch module 9 is turned on, the power and signal source device signals begin to transmit signals.

[0063] It is understood that the first switch module 8 and the second switch module 9 in this embodiment can be implemented by analog switching, and the chip model of the first switch module 8 and the second switch module 9 is not specifically limited.

[0064] Please refer to Figure 3 , Figure 3 A circuit schematic diagram of a first Type-C interface provided in this application.

[0065] Please refer to Figure 4 , Figure 4 The circuit diagram of a first electrostatic discharge protection unit provided in this application.

[0066] In a preferred embodiment, the first Type-C interface module 2 includes a first Type-C interface 21 and a first electrostatic discharge protection unit 22;

[0067] The first Type-C interface 21 is electrically connected to the first electrostatic discharge protection unit 22, and the first electrostatic discharge protection unit 22 is electrically connected to the reversible insertion control module 4, the first PD protocol control module 6, and the first switch module 8, respectively.

[0068] Specifically, in this embodiment, the first Type-C interface 21 is used to connect to power and signal source devices, and the first electrostatic discharge protection unit 22 is used to suppress electrostatic discharge during the transmission of power signals and display signals, thereby ensuring the reliability of signal transmission.

[0069] In a preferred embodiment, the first electrostatic discharge protection unit 22 includes a first electrostatic discharge protection subunit 221, a second electrostatic discharge protection subunit 222, and a third electrostatic discharge protection subunit 223;

[0070] The first electrostatic discharge protection subunit 221 is electrically connected to the first Type-C interface and the reversible plug control module 4, respectively. The second electrostatic discharge protection subunit 222 is electrically connected to the first Type-C interface and the reversible plug control module 4, respectively. The third electrostatic discharge protection subunit 223 is electrically connected to the first Type-C interface, the first switch module 8 and the first PD protocol control module 6, respectively.

[0071] Specifically, the first electrostatic discharge (ESD) protection subunit 221 is used to suppress ESD signals of the first Lane and the second Lane in the first Type-C interface; the second ESD protection subunit 222 is used to suppress ESD signals of the third Lane and the fourth Lane in the first Type-C interface; and the third ESD protection subunit 223 suppresses ESD signals of the communication control signals. It is understood that in this embodiment, the first ESD protection subunit 221, the second ESD protection subunit 222, and the third ESD protection subunit 223 are implemented using ESD suppression diodes. For details on the principle, please refer to [link to relevant documentation]. Figure 4 The specific model of the electrostatic discharge suppression diode is not limited.

[0072] Please refer to Figure 5 , Figure 5 A circuit schematic diagram of a second Type-C interface provided in this application.

[0073] In a preferred embodiment, the second Type-C interface module 3 includes a second Type-C interface 31 and a second electrostatic discharge protection unit 32;

[0074] The second Type-C interface 31 is electrically connected to the second electrostatic discharge protection unit 32, and the second electrostatic discharge protection unit 32 is electrically connected to the signal enhancement module 5, the second PD protocol control module 7, and the second switch module 9, respectively.

[0075] Specifically, in this embodiment, the second Type-C interface 31 is used to connect to the display terminal device, and the second electrostatic discharge protection unit 32 is used to suppress electrostatic discharge during the transmission of power signals and display signals, thereby ensuring the reliability of signal transmission.

[0076] It is worth noting that the circuit principle of the second electrostatic protection unit 32 in this embodiment is the same as that of the first electrostatic protection unit 22, and will not be described again here.

[0077] Please refer to Figure 6 , Figure 6 The circuit schematic diagram of a signal enhancement module provided in this application.

[0078] In a preferred embodiment, the signal enhancement module 5 includes a signal enhancer 51, a clock unit 52, an input processing unit 53, and an output processing unit 54;

[0079] The signal amplifier is electrically connected to the clock unit, the input processing unit, and the output processing unit, respectively. The input processing unit is electrically connected to the forward / reverse insertion control module 4, and the output processing unit is electrically connected to the second Type-C interface module 3.

[0080] Specifically, in this embodiment, the clock unit 52 is used to provide a clock signal to the signal enhancer 51; the input processing unit 53 and the output processing unit 54 are respectively used to process the input and output signals of the signal enhancer 51 to ensure the reliability of signal transmission.

[0081] Specifically, when the signal passes through the signal booster 51, the signal is reconstructed by the clock inside the signal booster 51, increasing the signal transmission energy before continuing transmission. The signal booster 51 is an IC with internal CDR (data clock recovery), which restores the data before sending the signal out through the serial channel, thus reducing signal jitter. In this embodiment, the chip model of the signal booster 51 is not specifically limited.

[0082] Please refer to Figure 7 , Figure 7 The circuit schematic diagram of a first PD protocol control module provided in this application.

[0083] In a preferred embodiment, the first PD protocol control module 6 includes a first PD protocol controller ICD2, a first resistor RD16, a second resistor RD17, a third resistor RD18, and a fourth resistor RD19;

[0084] The first PD protocol controller I CD2 is electrically connected to the first Typec interface module 2. The first end of the first resistor RD16 is electrically connected to the VBUS pin of the first PD protocol controller. The first end of the second resistor RD17 is electrically connected to the VCONN pin of the first PD protocol controller. The first ends of the third resistor RD18 and the first ends of the fourth resistor RD19 are both electrically connected to the SEL pin of the first PD protocol controller. The second ends of the first resistor RD16, the second resistor RD17, and the third resistor RD18 are electrically connected to the main control module 1. The second end of the fourth resistor RD19 is grounded.

[0085] Specifically, the first PD protocol controller is used to enable PD protocol communication between the main control module 1 and the first Typec interface module 2 accessing the device. The first resistor RD16 and the second resistor RD17 are voltage divider resistors for the VBUS pin and VCONN pin of the first PD protocol controller, the third resistor RD18 is a pull-up resistor, and the fourth resistor RD19 is a voltage divider resistor for the SEL pin of the PD protocol controller.

[0086] Please refer to Figure 8 , Figure 8 The circuit schematic diagram of a second PD protocol control module provided in this application.

[0087] In a preferred embodiment, the second PD protocol control module 7 includes a second PD protocol controller ICD3, a fifth resistor RD20, a sixth resistor RD21, a seventh resistor RD22, and an eighth resistor RD23;

[0088] The second PD protocol controller I CD3 is electrically connected to the second Typec interface module 3. The first end of the fifth resistor RD20 is electrically connected to the VBUS pin of the second PD protocol controller. The first end of the sixth resistor RD21 is electrically connected to the VCONN pin of the second PD protocol controller. The first ends of the seventh resistor RD22 and the eighth resistor RD23 are both electrically connected to the SEL pin of the second PD protocol controller. The second ends of the fifth resistor, the sixth resistor, and the seventh resistor RD22 are electrically connected to the main control module 1. The second end of the eighth resistor RD23 is grounded.

[0089] Specifically, the working principle of the second PD protocol control module 7 is the same as that of the first PD protocol control module 6, and will not be repeated here.

[0090] Specifically, this application uses an MCU as the core and adds two PD protocol control modules to the two Type-C interfaces. The MCU connects to the protocol control modules through IIC, so that the MCU can communicate with two Type-C interfaces at the same time. The PD protocol control module is only responsible for sending and receiving the PD protocol. The PD protocol layer and logic control run on the MCU.

[0091] This application also provides a full-function Type-C cable extension control device, including a full-function Type-C cable extension control circuit.

[0092] Please see Figure 9 , Figure 9 This application also provides a flowchart of a full-featured Type-C cable extension control method.

[0093] This application also provides a full-featured Type-C cable extension control method, applied to the aforementioned full-featured Type-C cable extension control circuit, the control method comprising:

[0094] S1. The first Type-C interface module is connected to the power supply and signal source equipment, and the second Type-C interface module is connected to the display terminal equipment.

[0095] S2. Control the first PD protocol control module to communicate with the power supply and signal source equipment for power and image data parameters;

[0096] S3. Control the second PD protocol control module to communicate with the display terminal device regarding power and image data parameters;

[0097] S4. Determine the correct or incorrect insertion of the device connected to the first Typec interface module, and change the wiring sequence when the device is inserted in the wrong direction.

[0098] S5. Enhance the signal received by the first Typec interface module to reduce signal jitter;

[0099] S6. Determine the correct or reverse insertion of the device connected to the second Typec interface module and change the wiring sequence.

[0100] S7. When the power supply and signal source equipment match the power parameters and image data parameters of the display terminal equipment, the control system maintains the current configuration and performs normal fast charging and display data transmission.

[0101] S8. When the power supply and signal source devices do not match the power parameters and image data parameters of the display terminal device, restart the communication of the first Typec interface module and reconfigure the power and image data parameters of the first Typec interface module to ensure compatibility with display terminal devices of different specifications.

[0102] For a description of the full-function Type-C cable extension control circuit provided in this application, please refer to the above embodiments; further details will not be repeated here.

[0103] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0104] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A full-function Type-C cable extension control circuit, characterized in that, It includes a main control module, a first Type-C interface module, a second Type-C interface module, a forward / reverse insertion control module, a signal enhancement module, a first PD protocol control module, and a second PD protocol control module; The first Typec interface module is electrically connected to the reversible insertion control module and the first PD protocol control module, respectively. The reversible insertion control module is electrically connected to the main control module, and the first PD protocol control module is electrically connected to the main control module. The signal enhancement module is electrically connected to the forward / reverse insertion control module, the main control module and the second Typec interface module respectively, and the second PD protocol control module is electrically connected to the main control module and the second Typec interface module respectively. The signal enhancement module includes a signal enhancer, a clock unit, an input processing unit, and an output processing unit; The signal enhancer is electrically connected to the clock unit, the input processing unit, and the output processing unit, respectively. The input processing unit is electrically connected to the reversible insertion control module, and the output processing unit is electrically connected to the second Type-C interface module. The first PD protocol control module includes a first PD protocol controller, a first resistor, a second resistor, a third resistor, and a fourth resistor; The first PD protocol controller is electrically connected to the first Typec interface module. The first end of the first resistor is electrically connected to the VBUS pin of the first PD protocol controller. The first end of the second resistor is electrically connected to the VCONN pin of the first PD protocol controller. The first ends of the third resistor and the fourth resistor are both electrically connected to the SEL pin of the first PD protocol controller. The second ends of the first resistor, the second resistor, and the third resistor are electrically connected to the main control module. The second end of the fourth resistor is grounded. The second PD protocol control module includes a second PD protocol controller, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor; The second PD protocol controller is electrically connected to the second Typec interface module. The first end of the fifth resistor is electrically connected to the VBUS pin of the second PD protocol controller. The first end of the sixth resistor is electrically connected to the VCONN pin of the second PD protocol controller. The first ends of the seventh resistor and the eighth resistor are both electrically connected to the SEL pin of the second PD protocol controller. The second ends of the fifth resistor, the sixth resistor, and the seventh resistor are electrically connected to the main control module. The second end of the eighth resistor is grounded.

2. The full-function Type-C cable extension control circuit according to claim 1, characterized in that, The full-function Type-C cable extension control circuit also includes a first switch module and a second switch module; The first switch module is electrically connected to the first Typec interface module, the reversible plug control module, and the main control module, respectively. The second switch module is electrically connected to the signal enhancement module, the second Type-C interface module, and the main control module, respectively.

3. The full-function Type-C cable extension control circuit according to claim 2, characterized in that, The first Type-C interface module includes a first Type-C interface and a first electrostatic discharge protection unit; The first Type-C interface is electrically connected to the first electrostatic discharge (ESD) protection unit, and the first ESD protection unit is electrically connected to the reversible insertion control module, the first PD protocol control module, and the first switch module, respectively.

4. The full-function Type-C cable extension control circuit according to claim 2, characterized in that, The second Type-C interface module includes a second Type-C interface and a second electrostatic discharge protection unit; The second Type-C interface is electrically connected to the second electrostatic discharge protection unit, and the second electrostatic discharge protection unit is electrically connected to the signal enhancement module, the second PD protocol control module, and the second switch module, respectively.

5. A full-function Type-C cable extension control circuit according to claim 3, characterized in that, The first electrostatic discharge protection unit includes a first electrostatic discharge protection subunit, a second electrostatic discharge protection subunit, and a third electrostatic discharge protection subunit; The first electrostatic discharge (ESD) protection subunit is electrically connected to the first Type-C interface and the reversible plug control module, the second ESD protection subunit is electrically connected to the first Type-C interface and the reversible plug control module, and the third ESD protection subunit is electrically connected to the first Type-C interface, the first switch module, and the first PD protocol control module.

6. A full-function Type-C cable extension control device, characterized in that, Includes a full-function Type-C cable extension control circuit as described in any one of claims 1 to 5.

7. A full-function Type-C cable extension control method, characterized in that, The control method, applied to a full-function Type-C cable extension control circuit according to any one of claims 1 to 5, comprises: The first Type-C interface module is connected to the power supply and signal source equipment, and the second Type-C interface module is connected to the display terminal equipment. The first PD protocol control module communicates with the power supply and signal source equipment regarding power and image data parameters. The second PD protocol control module communicates with the display terminal device regarding power and image data parameters. The correct orientation of the device connected to the first Typec interface module is determined, and the wiring sequence is changed when the device is connected in the wrong orientation. The signal connected to the first Type-C interface module is amplified to reduce signal jitter; Determine the correct insertion orientation and change the wiring sequence for the device connected to the second Type-C interface module; When the power supply and signal source equipment match the power parameters and image data parameters of the display terminal equipment, the control system maintains the current configuration and performs normal fast charging and display data transmission. When the power supply and signal source devices do not match the power parameters and image data parameters of the display terminal device, the communication of the first Type-C interface module is restarted, and the power and image data parameters of the first Type-C interface module are reconfigured to ensure compatibility with display terminal devices of different specifications.

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