Mainboard and interface device

Abstract

The utility model relates to the technical field of interfaces, and discloses a mainboard and an interface device, the mainboard comprises an interface conversion controller, a signal output controller and a Type-C interface; the input end of the interface conversion controller is connected with the PCIE interface, the output end of the interface conversion controller is connected with the input end of the signal output controller, the output end of the signal output controller is connected with the Type-C interface, and the Type-C interface is connected with external equipment. According to the utility model, the interface converter and the signal output controller are arranged, the interface converter outputs the USB signal corresponding to the PCIE signal to the signal output controller, and then the signal output controller outputs the data transmission signal and the video display signal corresponding to the USB signal to the external equipment through the Type-C interface. Complex hardware does not need to be additionally arranged on the mainboard, the cost is effectively reduced, and user requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of interfaces, in particular to a mainboard and an interface device. Background Art

[0002] At present, the existing high-speed serial computer expansion bus standard Peripheral Component Interconnect Express (PCIE) Type-C interface card is usually used for data communication with external devices. When it is necessary to realize video display on the external device, it is necessary to adopt the design method of the graphics processing unit (GPU). However, when the user only needs to simply display a miniaturized video on the external device, if the above method is used to realize data communication and video display, it is necessary to set up more complex hardware on the motherboard, resulting in high cost and unable to meet user needs.

[0003] The above contents are only used to assist in understanding the technical solution of the present utility model and do not constitute an admission that the above contents are prior art. Utility Model Content

[0004] The main purpose of the utility model is to provide a mainboard and an interface device, aiming to solve the technical problem that the existing technology needs to set up relatively complex hardware on the mainboard to realize data communication and video display, resulting in high cost and failure to meet user needs.

[0005] To achieve the above object, the utility model provides a mainboard, which includes: an interface conversion controller, a signal output controller and a Type-C interface;

[0006] The input end of the interface conversion controller is connected to the PCIE interface, the output end of the interface conversion controller is connected to the input end of the signal output controller, the output end of the signal output controller is connected to the Type-C interface, and the Type-C interface is connected to an external device;

[0007] The interface conversion controller is used to output a USB signal corresponding to the PCIE signal to the signal output controller when receiving a PCIE signal input by the PCIE interface;

[0008] The signal output controller is used to output the data transmission signal and the video display signal corresponding to the USB signal to the external device through the Type-C interface when receiving the USB signal.

[0009] Optionally, the signal output controller includes: a signal conversion sub-controller, a peripheral communication sub-controller, and an interface output sub-controller;

[0010] The input end of the signal conversion sub-controller is connected to the output end of the interface conversion controller, the output end of the signal conversion sub-controller is connected to the input end of the interface output sub-controller, the control end of the interface output sub-controller is connected to the output end of the peripheral communication sub-controller, the input end of the peripheral communication sub-controller is connected to the external device, and the output end of the interface output sub-controller is connected to the Type-C interface;

[0011] The signal conversion sub-controller is used to output the data transmission signal and the video display signal corresponding to the USB signal to the interface output sub-controller when receiving the USB signal;

[0012] The peripheral communication sub-controller is used to control the interface output sub-controller to output the data transmission signal and the video display signal to the external device through the Type-C interface when receiving a response signal representing the type of the composite device output by the external device.

[0013] Optionally, the peripheral communication sub-controller is further used to control the interface output sub-controller to output the data transmission signal to the external device through the Type-C interface when receiving a response signal indicating the USB device type output by the external device;

[0014] The peripheral communication sub-controller is also used to control the interface output sub-controller to output the video display signal to the external device through the Type-C interface when receiving a response signal representing the DP device type output by the external device.

[0015] Optionally, the signal conversion sub-controller includes: a first signal conversion sub-controller and a second signal conversion sub-controller;

[0016] The interface output sub-controller comprises: a first interface output sub-controller and a second interface output sub-controller;

[0017] The Type-C interface includes: a first Type-C interface and a second Type-C interface;

[0018] The input end of the first signal conversion sub-controller is connected to the output end of the interface conversion controller, the output end of the first signal conversion sub-controller is respectively connected to the input end of the first interface output sub-controller and the input end of the second interface output sub-controller, the control end of the first interface output sub-controller is connected to the output end of the peripheral communication sub-controller, and the output end of the first interface output sub-controller is connected to the first Type-C interface;

[0019] The input end of the second signal conversion sub-controller is connected to the output end of the interface conversion controller, the output end of the second signal conversion sub-controller is respectively connected to the input end of the first interface output sub-controller and the input end of the second interface output sub-controller, the control end of the second interface output sub-controller is connected to the output end of the peripheral communication sub-controller, and the output end of the second interface output sub-controller is connected to the second Type-C interface.

[0020] Optionally, the models of the first interface output sub-controller and the second interface output sub-controller are both PS8838.

[0021] Optionally, the mainboard further includes: a power management module;

[0022] The output end of the power management module is respectively connected to the power supply end of the interface conversion controller, the power supply end of the first signal conversion sub-controller, the power supply end of the second signal conversion sub-controller, the power supply end of the peripheral communication sub-controller, the power supply end of the first interface output sub-controller, the power supply end of the second interface output sub-controller, the first Type-C interface and the second Type-C interface.

[0023] Optionally, the mainboard further includes: a power chip;

[0024] The output ends of the power chip are respectively connected to the Type-C interfaces;

[0025] The peripheral communication sub-controller is further configured to output a charging enable signal to the power chip upon receiving a charging response signal output by the external device;

[0026] The power chip is used to output a charging voltage to charge the external device through the Type-C interface when receiving the charging enable signal.

[0027] In addition, to achieve the above-mentioned purpose, the present invention also provides an interface device, which includes the mainboard as described above.

[0028] The utility model provides a mainboard and an interface device, the mainboard includes: an interface conversion controller, a signal output controller and a Type-C interface; the input end of the interface conversion controller is connected to the PCIE interface, the output end of the interface conversion controller is connected to the input end of the signal output controller, the output end of the signal output controller is connected to the Type-C interface, and the Type-C interface is connected to an external device. The utility model sets an interface converter and a signal output controller between the PCIE interface and the Type-C interface, and the interface conversion controller outputs a USB signal corresponding to the PCIE signal to the signal output controller, and then the signal output controller outputs a data transmission signal and a video display signal corresponding to the USB signal to the external device through the Type-C interface. Data communication and video display can be realized on the external device without additionally setting more complex hardware on the mainboard, which effectively reduces costs and meets user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure provided for the first embodiment of the mainboard of the utility model;

[0030] Figure 2 A first structural schematic diagram provided for the second embodiment of the mainboard of the utility model;

[0031] Figure 3 A second structural schematic diagram provided for the second embodiment of the mainboard of the utility model;

[0032] Figure 4 A third structural diagram provided for the second embodiment of the mainboard of the utility model;

[0033] Figure 5 This is a structural diagram of the third embodiment of the mainboard of the utility model.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0037] It should be noted that the descriptions of "first", "second", etc. in the embodiments of the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] Reference Figure 1 , Figure 1 This is a structural schematic diagram of the first embodiment of the mainboard of the utility model.

[0039] like Figure 1 As shown, in this embodiment, the mainboard includes: an interface conversion controller 100 , a signal output controller 200 and a Type-C interface 300 .

[0040] The input end of the interface conversion controller 100 is connected to the PCIE interface 101, the output end of the interface conversion controller 100 is connected to the input end of the signal output controller 200, the output end of the signal output controller 200 is connected to the Type-C interface 300, and the Type-C interface 300 is connected to an external device.

[0041] It should be noted that the interface conversion controller 100 may be a bridge chip for realizing conversion between a PCIE interface and a USB interface, such as ASM3124.

[0042] It is understandable that the PCIE interface 101 may be a multi-channel interface based on the third generation PCIE technology, such as PCIE GEN3 X4 using 4 channels.

[0043] The interface conversion controller 100 is used to output a USB signal corresponding to the PCIE signal to the signal output controller 200 when receiving the PCIE signal input by the PCIE interface 101 .

[0044] In a specific implementation, the interface conversion controller 100 can receive a PCIE signal input from a PCIE device through a PCIE interface 101, parse the PCIE signal based on internal circuits and logic, convert the PCIE signal into a USB signal, and output the USB signal to the signal output controller 200.

[0045] The signal output controller 200 is used to output the data transmission signal and the video display signal corresponding to the USB signal to the external device through the Type-C interface 300 when receiving the USB signal.

[0046] In a specific implementation, the signal output controller 200 can convert the USB signal into a data transmission signal for data communication and a video display signal for video display when receiving the USB signal input by the interface conversion controller 100, and then output the data transmission signal and the video display signal to the external device through the Type-C interface to realize data communication with the external device and display the video on the external device, thereby supporting data communication and video display to the external device, meeting user needs, and improving user experience.

[0047] The motherboard of this embodiment includes: an interface conversion controller, a signal output controller and a Type-C interface; the input end of the interface conversion controller is connected to the PCIE interface, the output end of the interface conversion controller is connected to the input end of the signal output controller, the output end of the signal output controller is connected to the Type-C interface, and the Type-C interface is connected to an external device. In this embodiment, an interface converter and a signal output controller are arranged between the PCIE interface and the Type-C interface, and the interface conversion controller outputs the USB signal corresponding to the PCIE signal to the signal output controller, and then the signal output controller outputs the data transmission signal and the video display signal corresponding to the USB signal to the external device through the Type-C interface. Data communication and video display can be realized on the external device without additionally arranging more complex hardware on the motherboard, which effectively reduces costs and meets user needs.

[0048] refer to Figure 2 , Figure 2 This is a first structural schematic diagram provided for the second embodiment of the mainboard of the utility model.

[0049] Based on the above first embodiment, in this embodiment, the signal output controller 200 includes: a signal conversion sub-controller 201 , a peripheral communication sub-controller 202 , and an interface output sub-controller 203 .

[0050] The input end of the signal conversion sub-controller 201 is connected to the output end of the interface conversion controller 100, the output end of the signal conversion sub-controller 201 is connected to the input end of the interface output sub-controller 203, the control end of the interface output sub-controller 203 is connected to the output end of the peripheral communication sub-controller 202, the input end of the peripheral communication sub-controller 202 is connected to the external device, and the output end of the interface output sub-controller 203 is connected to the Type-C interface 300.

[0051] It should be noted that the above peripheral communication sub-controller 202 can be a dual-port power transmission controller, such as PDRTS5453H. The peripheral communication sub-controller 202 controls the signal output of the interface output sub-controller 203 on the one hand, and provides a stable power supply for the interface output sub-controller 203 on the other hand.

[0052] The signal conversion sub-controller 201 is used to output the data transmission signal and the video display signal corresponding to the USB signal to the interface output sub-controller 203 when receiving the USB signal.

[0053] In a specific implementation, the signal conversion sub-controller 201 can parse the USB signal when receiving the USB signal input by the interface conversion controller 100, convert the USB signal into a data transmission signal and a video display signal, and then output the data transmission signal and the video display signal to the interface output sub-controller 203.

[0054] Further, refer to Figure 3 , Figure 3 The second structural diagram of the second embodiment of the mainboard of the utility model is provided. In this embodiment, the signal conversion sub-controller 201 includes: a first signal conversion sub-controller 2011 and a second signal conversion sub-controller 2012 .

[0055] The interface output sub-controller includes: a first interface output sub-controller 2031 and a second interface output sub-controller 2032 .

[0056] The Type-C interface 300 includes: a first Type-C interface 301 and a second Type-C interface 302 .

[0057] The input end of the first signal conversion sub-controller 2011 is connected to the output end of the interface conversion controller 100, the output end of the first signal conversion sub-controller 2011 is respectively connected to the input end of the first interface output sub-controller 2031 and the input end of the second interface output sub-controller 2032, the control end of the first interface output sub-controller 2031 is connected to the output end of the peripheral communication sub-controller 202, and the output end of the first interface output sub-controller 2031 is connected to the first Type-C interface 301.

[0058] The input end of the second signal conversion sub-controller 2012 is connected to the output end of the interface conversion controller 100, the output end of the second signal conversion sub-controller 2012 is respectively connected to the input end of the first interface output sub-controller 2031 and the input end of the second interface output sub-controller 2032, the control end of the second interface output sub-controller 2032 is connected to the output end of the peripheral communication sub-controller 202, and the output end of the second interface output sub-controller 2032 is connected to the second Type-C interface 302.

[0059] It should be noted that the first signal conversion sub-controller 2011 may be a controller that allows a user to expand multiple USB ports through a single USB interface, such as ASM2074.

[0060] It is understandable that the second signal conversion sub-controller 2012 may be a converter chip for converting USB signals into video display signals, such as a USB to DP DL-7400 host controller.

[0061] It should be noted that both the first interface output sub-controller 2031 and the second interface output sub-controller 2032 can be controllers that combine a multiplexer and a signal retimer, such as the model PS8838. When PS8838 is used, both the first interface output sub-controller 2031 and the second interface output sub-controller 2032 can have a retimer signal enhancement function, which can enhance the signal output through the first Type-C interface 301 and the second Type-C interface 302, reduce signal attenuation and interference, and thus provide a higher quality signal output.

[0062] In a specific implementation, the first signal conversion sub-controller 2011 can convert the USB signal into two data transmission signals, and output one data transmission signal to the first interface output sub-controller 2031, and output the other data transmission signal to the second interface output sub-controller 2032. The second signal conversion sub-controller 2012 can convert the USB signal into two video display signals, and output one video display signal to the first interface output sub-controller 2031, and output the other video display signal to the second interface output sub-controller 2032.

[0063] The peripheral communication sub-controller 202 is used to control the interface output sub-controller 203 to output the data transmission signal and the video display signal to the external device through the Type-C interface 300 when receiving a response signal representing the type of the composite device output by the external device.

[0064] In a specific implementation, the above-mentioned peripheral communication sub-controller 202 can be connected to an external device through a CC (configuration channel) signal line, and the CC signal line is used to transmit status information and control commands between the peripheral communication sub-controller 202 and the external device. The above-mentioned peripheral communication sub-controller 202 can send a detection signal to the external device through the CC signal line, and the external device can respond to the detection signal. When the external device is a composite device that supports data communication and video display, a response signal representing the type of the composite device is fed back to the peripheral communication sub-controller 202. When the peripheral communication sub-controller 202 receives the response signal representing the type of the composite device, it can control the interface output sub-controller 203 to output the data transmission signal and the video display signal to the external device through the Type-C interface 300.

[0065] In this embodiment, the peripheral communication sub-controller 202 is also used to control the interface output sub-controller 203 to output the data transmission signal to the external device through the Type-C interface 300 when receiving a response signal representing the USB device type output by the external device.

[0066] In a specific implementation, when the above-mentioned peripheral communication sub-controller 202 receives a response signal representing the USB device type output by an external device, it determines that the external device supports data communication but does not support video display. At this time, it can control the interface output sub-controller 203 to output a data transmission signal to the external device through the Type-C interface 300.

[0067] The peripheral communication sub-controller 202 is also used to control the interface output sub-controller 203 to output the video display signal to the external device through the Type-C interface 300 when receiving a response signal indicating the DP device type output by the external device.

[0068] In a specific implementation, when the above-mentioned peripheral communication sub-controller 202 receives a response signal representing the display port (DisplayPort, DP) device type output by an external device, it determines that the external device supports video display but does not support data transmission. At this time, it can control the interface output sub-controller 203 to output the video display signal to the external device through the Type-C interface 300.

[0069] Among them, when the first Type-C interface 301 is connected to an external device, the peripheral communication sub-controller 202 controls the first interface output sub-controller 2031 to output a data transmission signal or a video display signal to the external device. When the second Type-C interface 302 is connected to an external device, the peripheral communication sub-controller 202 controls the second interface output sub-controller 2032 to output a data transmission signal or a video display signal to the external device. When both the first Type-C interface 301 and the second Type-C interface 302 are connected to external devices, the peripheral communication sub-controller 202 controls the first interface output sub-controller 2031 and the second interface output sub-controller 2032 to output a data transmission signal or a video display signal.

[0070] Further, refer to Figure 4 , Figure 4 The third structural diagram of the second embodiment of the mainboard of the utility model is provided. In this embodiment, the mainboard further includes: a power management module 400.

[0071] Although some of the connection relationships are not shown in the diagram, the output end of the power management module 400 is respectively connected to the power supply end of the interface conversion controller 100, the power supply end of the first signal conversion sub-controller 2011, the power supply end of the second signal conversion sub-controller 2012, the power supply end of the peripheral communication sub-controller 202, the power supply end of the first interface output sub-controller 2031, the power supply end of the second interface output sub-controller 2031, the first Type-C interface 301 and the second Type-C interface 302.

[0072] In a specific implementation, when the mainboard is connected to the PCIE interface 101, after power-on, the power management module 400 can filter the power supply voltage input by the PCIE interface 101, and use the filtered voltage to power the interface conversion controller 100, the first signal conversion sub-controller 2011, the second signal conversion sub-controller 2012, the peripheral communication sub-controller 202, the first interface output sub-controller 2031, the second interface output sub-controller 2031, the first Type-C interface 301 and the second Type-C interface 302.

[0073] In this embodiment, when the signal conversion sub-controller receives the USB signal, it outputs the data transmission signal and the video display signal corresponding to the USB signal to the interface output sub-controller; when the peripheral communication sub-controller receives the response signal representing the type of the composite device output by the external device, it controls the interface output sub-controller to output the data transmission signal and the video display signal to the external device through the Type-C interface; when the peripheral communication sub-controller receives the response signal representing the type of the USB device output by the external device, it controls the interface output sub-controller to output the data transmission signal to the external device through the Type-C interface; the peripheral communication sub-controller is also used to control the interface output sub-controller to output the video display signal to the external device through the Type-C interface when it receives the response signal representing the DP device type output by the external device, so that the corresponding data transmission signal or video display signal can be output according to the different types of external devices, thereby improving the user experience.

[0074] refer to Figure 5 , Figure 5 This is a structural diagram of the third embodiment of the mainboard of the utility model.

[0075] Based on the above embodiments, in this embodiment, the mainboard further includes: a power chip 500 .

[0076] The output ends of the power chip 500 are respectively connected to the Type-C interface 300 .

[0077] Specifically, the input end of the power chip 500 is connected to the power interface 600 , and the output ends of the power chip 500 are respectively connected to the first Type-C interface 301 and the second Type-C interface 302 .

[0078] The peripheral communication sub-controller 202 is further configured to output a charging enable signal to the power chip 500 upon receiving a charging response signal output by the external device.

[0079] In a specific implementation, the above-mentioned peripheral communication sub-controller 202 can communicate with the external device through the CC signal line, determine the charging voltage required by the external device according to the charging response signal fed back by the external device, and then generate an enable signal corresponding to the charging voltage through internal logic to the power chip 500.

[0080] The power chip 500 is used to output a charging voltage to charge the external device through the Type-C interface 300 when receiving the charging enable signal.

[0081] In a specific implementation, after receiving the charging enable signal, the power chip 500 can output the charging voltage to the external device through the Type-C interface 300 to charge the external device. When the first Type-C interface 301 is connected to the external device, the power chip 500 outputs the charging voltage through the first Type-C interface 301. When the second Type-C interface 302 is connected to the external device, the power chip 500 outputs the charging voltage through the first Type-C interface 301. When both the first Type-C interface 301 and the second Type-C interface 302 are connected to external devices, the power chip 500 outputs the charging voltage through the first Type-C interface 301 and the second Type-C interface 302 respectively.

[0082] The first Type-C interface 301 can be configured with a high power consumption (e.g., 20V, 5A) external power supply capability to charge high power devices such as laptops. The second Type-C interface 302 can be configured with a low power consumption (e.g., 5V, 3A) external power supply capability to charge low power devices such as mobile phones.

[0083] In this embodiment, when the peripheral communication sub-controller receives the charging response signal output by the external device, it outputs a charging enable signal to the power chip; when the power chip receives the charging enable signal, it outputs a charging voltage through the Type-C interface to charge the external device, thereby supporting both data communication and video display and power supply to external devices, meeting user needs and improving user experience.

[0084] In addition, an embodiment of the present invention further provides an interface device, which includes the mainboard described above.

[0085] The specific implementation of the interface device of the present invention can refer to the above-mentioned mainboard embodiment, which will not be described in detail here.

[0086] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0087] The serial numbers of the above-mentioned embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0088] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A motherboard, characterized in that: The mainboard includes: an interface conversion controller, a signal output controller and a Type-C interface; The input end of the interface conversion controller is connected to the PCIE interface, the output end of the interface conversion controller is connected to the input end of the signal output controller, the output end of the signal output controller is connected to the Type-C interface, and the Type-C interface is connected to an external device; The interface conversion controller is used to output a USB signal corresponding to the PCIE signal to the signal output controller when receiving a PCIE signal input by the PCIE interface; The signal output controller is used to output the data transmission signal and the video display signal corresponding to the USB signal to the external device through the Type-C interface when receiving the USB signal.

2. The mainboard according to claim 1, wherein: The signal output controller includes: a signal conversion sub-controller, a peripheral communication sub-controller, and an interface output sub-controller; The input end of the signal conversion sub-controller is connected to the output end of the interface conversion controller, the output end of the signal conversion sub-controller is connected to the input end of the interface output sub-controller, the control end of the interface output sub-controller is connected to the output end of the peripheral communication sub-controller, the input end of the peripheral communication sub-controller is connected to the external device, and the output end of the interface output sub-controller is connected to the Type-C interface; The signal conversion sub-controller is used to output the data transmission signal and the video display signal corresponding to the USB signal to the interface output sub-controller when receiving the USB signal; The peripheral communication sub-controller is used to control the interface output sub-controller to output the data transmission signal and the video display signal to the external device through the Type-C interface when receiving a response signal representing the type of the composite device output by the external device.

3. The mainboard according to claim 2, characterized in that: The peripheral communication sub-controller is further used to control the interface output sub-controller to output the data transmission signal to the external device through the Type-C interface when receiving a response signal indicating the USB device type output by the external device; The peripheral communication sub-controller is also used to control the interface output sub-controller to output the video display signal to the external device through the Type-C interface when receiving a response signal representing the DP device type output by the external device.

4. The mainboard according to claim 3, characterized in that: The signal conversion sub-controller comprises: a first signal conversion sub-controller and a second signal conversion sub-controller; The interface output sub-controller comprises: a first interface output sub-controller and a second interface output sub-controller; The Type-C interface includes: a first Type-C interface and a second Type-C interface; The input end of the first signal conversion sub-controller is connected to the output end of the interface conversion controller, the output end of the first signal conversion sub-controller is respectively connected to the input end of the first interface output sub-controller and the input end of the second interface output sub-controller, the control end of the first interface output sub-controller is connected to the output end of the peripheral communication sub-controller, and the output end of the first interface output sub-controller is connected to the first Type-C interface; The input end of the second signal conversion sub-controller is connected to the output end of the interface conversion controller, the output end of the second signal conversion sub-controller is respectively connected to the input end of the first interface output sub-controller and the input end of the second interface output sub-controller, the control end of the second interface output sub-controller is connected to the output end of the peripheral communication sub-controller, and the output end of the second interface output sub-controller is connected to the second Type-C interface.

5. The mainboard according to claim 4, characterized in that: The models of the first interface output sub-controller and the second interface output sub-controller are both PS8838.

6. The mainboard according to claim 4, characterized in that: The mainboard also includes: a power management module; The output end of the power management module is respectively connected to the power supply end of the interface conversion controller, the power supply end of the first signal conversion sub-controller, the power supply end of the second signal conversion sub-controller, the power supply end of the peripheral communication sub-controller, the power supply end of the first interface output sub-controller, the power supply end of the second interface output sub-controller, the first Type-C interface and the second Type-C interface.

7. The mainboard according to claim 2, characterized in that: The mainboard also includes: a power chip; The output ends of the power chip are respectively connected to the Type-C interfaces; The peripheral communication sub-controller is further configured to output a charging enable signal to the power chip upon receiving a charging response signal output by the external device; The power chip is used to output a charging voltage to charge the external device through the Type-C interface when receiving the charging enable signal.

8. An interface device, characterized in that: The interface device comprises the mainboard as claimed in any one of claims 1 to 7.

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