Multi-interface switching circuit and electronic equipment

Abstract

The invention provides a multi-interface switching circuit and electronic equipment. The multi-interface switching circuit comprises a plurality of data interfaces, a detection unit, a first signal output unit and a switching unit, the plurality of data interfaces are used for connecting other electronic equipment; the detection unit is used for detecting a first interface in the plurality of data interfaces, wherein the first interface is a data interface currently connected with audio equipment and / or video equipment; the first signal output unit is used for outputting an audio signal and / or a video signal; the switching unit is used for switching the first signal output unit to the first interface; according to the application, when any data interface is connected to the audio and / or video equipment, the data interface can be defined as the first interface, so that the first signal output unit is selectively connected to the first interface to expand the audio / video output function of the first interface; therefore, the inconvenience in use caused by setting a fixed audio / video data interface is overcome, and the use difficulty of the electronic equipment is reduced.

Description

Technical Field

[0001] The present application belongs to the field of interface technology, and in particular relates to a multi-interface switching circuit and electronic equipment. Background Art

[0002] In current electronic devices, the Type-C interface has become the mainstream data and power interface due to its high flexibility and versatility. The Type-C interface can not only achieve fast charging and high-speed data transmission, but also support high-definition audio and video transmission.

[0003] However, for cost considerations, manufacturers usually set one of the multiple Type-C interfaces as a fixed full-function interface, while other interfaces may only support basic functions such as charging or data transmission. This will make it difficult for users to quickly and accurately plug in the full-function Type-C interface, which in turn increases the difficulty of use for users.

[0004] Therefore, how to reduce the difficulty of use for users is a problem that those skilled in the art currently need to solve. Summary of the invention

[0005] The purpose of the present application is to provide a multi-interface switching circuit and electronic equipment, aiming to solve the problem that electronic equipment in traditional technology is difficult to use.

[0006] A first aspect of an embodiment of the present application provides a multi-interface switching circuit, including:

[0007] Multiple data interfaces for connecting to other electronic devices;

[0008] A detection unit, configured to detect a first interface among a plurality of data interfaces, wherein the first interface is a data interface currently connected to an audio device and / or a video device;

[0009] A first signal output unit, the first signal output unit is used to output an audio signal and / or a video signal;

[0010] A switching unit is used to switch the first signal output unit to the first interface.

[0011] In some embodiments of the present application, the multi-interface conversion circuit also includes a second signal output unit, which is used to output a USB signal; the switching unit includes a plurality of first switch elements, and the plurality of first switch elements are arranged in a one-to-one correspondence with at least some of the data interfaces; one end of the first switch element is fixedly connected to the data interface, and the other end is switchably arranged between the first signal output unit and the second signal output unit.

[0012] In some embodiments of the present application, the data interface is a Type-C interface, and each of the data interfaces is connected to a first switch element.

[0013] In some embodiments of the present application, the detection unit is a configuration channel detection unit.

[0014] In some embodiments of the present application, the multi-interface conversion circuit further includes:

[0015] An energy storage unit, the energy storage unit being used to supply power to other electronic devices through the data interface or to charge the energy storage unit through other electronic devices;

[0016] A plurality of second switch elements are arranged in one-to-one correspondence with the plurality of data interfaces, and the second switch elements are arranged between the energy storage unit and the data interface, and are used to control the on / off between the energy storage unit and the data interface.

[0017] In some embodiments of the present application, the multi-interface conversion circuit also includes a control chip, and the detection unit and the switching unit are arranged on the control chip; the detection unit is also used to detect a second interface among multiple data interfaces, and the second interface is a data interface currently connected to a charging device; the control chip controls the second switch corresponding to the second interface to turn on according to the detection signal of the detection unit.

[0018] In some embodiments of the present application, the number of the second interfaces is multiple, and the second interface includes a first sub-interface and a second sub-interface, the first sub-interface is used to connect a first charging device, and the second sub-interface is used to connect a second charging device; the charging power of the first charging device is higher than the charging power of the second charging device;

[0019] The control chip is configured to preferentially control the second switch element of the first sub-interface to be turned on, and when the second switch element of the first sub-interface is turned on, the second switch element of the second sub-interface is turned off.

[0020] In some embodiments of the present application, the multi-interface conversion circuit further includes a power supply selection unit, which is used to selectively control the energy storage unit to power an external electronic device or control the energy storage unit to receive electrical energy input from an external electronic device.

[0021] In some embodiments of the present application, the number of the first interface is 1.

[0022] In a second aspect, the present application also provides an electronic device, characterized in that it includes the above-mentioned multi-interface conversion circuit.

[0023] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: the above-mentioned multi-interface switching circuit and electronic device, the multi-interface switching circuit includes multiple data interfaces, a detection unit, a first signal output unit and a switching unit; the multiple data interfaces are used to connect other electronic devices; the detection unit is used to detect the first interface among the multiple data interfaces, the first interface is the data interface currently connected to the audio device and / or the video device; the first signal output unit is used to output audio signals and / or video signals; the switching unit is used to switch the first signal output unit to the first interface; in the present application, when any data interface is connected to an audio and / or video device, the data interface can be defined as the first interface, so that the first signal output unit can be selectively connected to the first interface to expand the audio / video output function of the first interface, so as to overcome the inconvenience caused by setting a fixed audio / video data interface, thereby helping to reduce the difficulty of using the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the framework structure of a multi-interface switching circuit provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the framework structure of a multi-interface switching circuit provided in another embodiment of the present application;

[0026] Figure 3 Another schematic diagram of the framework structure of the multi-interface switching circuit provided in one embodiment of the present application.

[0027] Specific element symbol description: 100 - data interface, 200 - switching unit, 300 - first signal output unit, 400 - other electronic equipment, 500 - second signal output unit. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and 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 a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] It is important to know that the Type-C interface currently occupies an important position in many electronic devices with its excellent versatility, high efficiency and minimalist design concept. It not only unifies the previously complicated charging and data transmission port standards, but also greatly improves the user experience, achieving seamless docking from smartphones, tablets to laptops and even some professional equipment. The essence of the Type-C interface design lies in its convenience of being pluggable in both directions, as well as its support for high-speed data transmission (such as USB 3.1Gen 2 and above, supporting speeds of up to 10Gbps), fast charging technology (such as PD fast charging protocol, supporting power output of up to 100 watts) and even DisplayPort video signal transmission and other advanced functions, bringing unprecedented convenience and efficiency to modern life.

[0033] However, while pursuing technological innovation, cost control is also an important factor that manufacturers have to weigh. In order to control production costs while maintaining product competitiveness, many device manufacturers have adopted a strategy of differentiated configuration of Type-C interfaces. Specifically, multiple Type-C interfaces are configured in the same device, but not all interfaces have full-featured features. Usually manufacturers will choose one of the interfaces as a "flagship" full-featured interface that integrates all advanced functions such as charging, data transmission, and video output, while the remaining interfaces may only retain charging or basic data transmission functions based on product positioning and user needs to reduce costs.

[0034] Although this design optimizes the cost structure to a certain extent, it also brings considerable challenges to users. Due to the high consistency in the appearance of the interface, when users urgently need to use the full-function interface for high-definition video projection, high-speed data transmission, or enjoy the ultra-fast charging experience, they may encounter troubles because they cannot intuitively distinguish the interface functions. Especially in emergency situations, multiple attempts to connect to the wrong interface will not only waste valuable time, but may also cause physical wear on the interface due to frequent plugging and unplugging, affecting its service life.

[0035] Therefore, the present application improves the related multi-interface switching circuit and electronic equipment based on this.

[0036] See also Figure 1 , Figure 1 The schematic diagram of the framework structure of the multi-interface switching circuit provided in this embodiment is shown. The multi-interface switching circuit of this embodiment includes multiple data interfaces 100, a detection unit, a first signal output unit 300 and a switching unit 200. The multiple data interfaces 100 are used to connect other electronic devices 400; the detection unit is used to detect the first interface among the multiple data interfaces 100, and the first interface is the data interface 100 currently connected to the audio device and / or the video device; the first signal output unit 300 is used to output audio signals and / or video signals; the switching unit 200 is used to switch the first signal output unit 300 to the first interface.

[0037] It should be explained that the data interface 100 is a bridge connecting the transfer circuit and the external electronic device, and supports various types of connection standards (such as USB-C, HDMI, DisplayPort, Thunderbolt, etc.) to meet the compatibility requirements of different devices. The data interface 100 has data transmission capabilities and can receive signals from connected devices, including but not limited to audio, video, data, etc.

[0038] The detection unit may realize the identification function by detecting the electrical characteristics (such as voltage, current, impedance change) on the interface or receiving a specific signal from the connected device. The detection unit is responsible for real-time monitoring of the status of multiple data interfaces 100 and identifying the first interface currently connected to the audio device and / or video device. The first signal output unit 300 is a part of the CPU and is used to output audio and / or video signals.

[0039] The switching unit 200 is a key component that connects the first signal output unit 300 and the multiple data interfaces 100. It dynamically adjusts the signal transmission path according to the control signal of the detection unit. When the first interface is detected, the switching unit 200 will quickly connect the output end of the first signal output unit 300 to the first interface to ensure that the audio and video signals can flow smoothly to the target device.

[0040] Current electronic devices are often provided with multiple data interfaces 100. If all of the multiple data interfaces 100 are full-function interfaces (equivalent to being able to transmit audio, video, USB data signals, and charge), the manufacturing cost will increase, and a control chip will also need to be provided for each data interface 100. If one of the data interfaces 100 is provided as a full-function interface, and the other data interfaces 100 are ordinary interfaces, then when the user needs to insert the full-function interface, the ordinary interface may be mistakenly inserted, which will not only waste the user's time, but also reduce the number of times the ordinary interface can be plugged in and out. However, in the present application, when any data interface 100 is connected to an audio and / or video device, the data interface 100 can be defined as a first interface, so that the first signal output unit 300 can be selectively connected to the first interface to expand the audio / video output function of the first interface, so as to overcome the inconvenience caused by setting a fixed audio / video data interface 100, thereby helping to reduce the difficulty of using the electronic device.

[0041] In some embodiments of this application, please refer to Figure 2 and Figure 3 , Figure 2 FIG. 4 shows a schematic diagram of a multi-interface conversion circuit provided in this embodiment. Figure 3 FIG. 2 shows another schematic diagram of the framework structure of the multi-interface conversion circuit provided in this embodiment. Figure 3 In the figure, IC is a control chip, DP is an audio signal or a video signal, USB1, USB2, ..., USBn are USB signals corresponding to different data interfaces 100. Type C1, type C2, ..., type Cn are different data interfaces 100.

[0042] The multi-interface conversion circuit of this embodiment also includes a second signal output unit 500, which is used to output USB signals; the switching unit 200 includes multiple first switch elements, and the multiple first switch elements are arranged in a one-to-one correspondence with at least part of the data interface 100; one end of the first switch element is fixedly connected to the data interface 100, and the other end is switchably arranged between the first signal output unit 300 and the second signal output unit 500.

[0043] It should be explained that the second signal output unit 500 is also part of the CPU, and the second signal output unit 500 is specifically used to output USB signals. In other words, the second signal output unit 500 can process USB data from the connected device, including but not limited to USB standard functions such as file transfer and peripheral control. One end of each first switch element is fixedly connected to a data interface 100, and the other end is designed to be switchably arranged between the first signal output unit 300 and the second signal output unit 500. This design allows the circuit to direct the signal of a specific interface to the audio / video processing path (first signal output unit 300) or the USB processing path (second signal output unit 500) according to actual needs.

[0044] It is understandable that when an audio / video device is detected to be connected to a certain interface, the corresponding first switch element will be switched to the first signal output unit 300 to transmit the audio / video signal. If a USB device is detected, or the user specifies the USB signal path in some way, the corresponding first switch element will be switched to the second signal output unit 500 to support USB data transmission or charging and other functions.

[0045] In some embodiments of this application, please continue to refer to Figure 3 , the data interface of this embodiment is a Type-C interface, and each data interface 100 is connected to a first switch. That is to say, each Type-C interface can be freely switched to connect to the first signal output unit 300 or the second signal output unit 500. Each interface can independently control its signal flow direction, which enhances the flexibility and scalability of the circuit. Due to the versatility and versatility of the Type-C interface, the data interface can be widely used in various electronic devices that require multi-interface conversion, such as laptops, docking stations, audio and video converters, etc.

[0046] In some embodiments of this application, please continue to refer to Figure 3 , Figure 3 The CC CONTROLLER in is a configuration channel detection unit, and the detection unit in this embodiment is a configuration channel detection unit. It should be explained that the configuration channel (Configuration Channel, CC) detection unit is responsible for monitoring the voltage changes on the configuration channel of the data interface 100 and interpreting the meaning represented by these voltage signals. It can identify the type of connected device (such as audio device, video device, USB device, etc.), as well as the functions and protocols supported by the device. Based on the recognition result, the configuration channel detection unit will send a corresponding control signal to the switching unit 200, instructing it to connect the first signal output unit 300 or the second signal output unit 500 (or other signal output unit) to the correct data interface 100.

[0047] In some embodiments of this application, please continue to refer to Figure 3 , Figure 3 The POWER switch is a second switch component, and CHARGER is an energy storage unit. The multi-interface conversion circuit of this embodiment also includes an energy storage unit and a plurality of second switch components, wherein the energy storage unit is used to supply power to other electronic devices 400 through the data interface 100 or to charge the energy storage unit through other electronic devices 400; the plurality of second switch components are arranged in a one-to-one correspondence with the plurality of data interfaces 100, and the second switch component is arranged between the energy storage unit and the data interface 100, and is used to control the on / off between the energy storage unit and the data interface 100.

[0048] It should be explained that the energy storage unit is a device that can store electrical energy or a device that guides external power directly into the device, such as a battery or a supercapacitor. It can provide power to other electronic devices 400 through a data interface 100 (such as a Type-C interface), or charge itself by connecting to other electronic devices 400 (such as a power adapter or a device that supports reverse charging).

[0049] It is understandable that each data interface 100 is provided with a corresponding second switch element, and these switch elements are located between the energy storage unit and the data interface 100. Their main function is to control the on / off of the circuit between the energy storage unit and the data interface 100, so as to achieve precise control of power transmission. When it is necessary to power other devices, the corresponding second switch element will be closed, allowing current to flow from the energy storage unit to the data interface 100. Conversely, when it is necessary to charge the energy storage unit or cut off the power connection, the second switch element will be disconnected to prevent current from flowing.

[0050] In some embodiments of this application, please continue to refer to Figure 3 The multi-interface conversion circuit of this embodiment also includes a control chip, and the detection unit and the switching unit 200 are arranged on the control chip; the detection unit is also used to detect the second interface among the multiple data interfaces 100, and the second interface is the data interface 100 currently connected to the charging device; the control chip controls the second switch element corresponding to the second interface to be turned on according to the detection signal of the detection unit.

[0051] It should be explained that the detection unit is responsible for real-time monitoring of the status of each data interface 100, including whether there is a device connected, the type of connected device (such as charging device, data transmission device, etc.) and the working status of the interface. In this embodiment, the detection unit is also particularly used to detect the "second interface" among multiple data interfaces 100, that is, the data interface 100 currently connected to the charging device. When the detection unit detects that a charging device is connected to the second interface, the control chip will send a signal to the switching unit 200 to turn on the second switch, thereby allowing current to pass through the interface to power the charging device.

[0052] In some embodiments, if the number of data interfaces 100 is n, then n first switch elements need to be provided accordingly, and at least n input interfaces need to be provided accordingly on the control chip.

[0053] In some embodiments of the present application, the number of second interfaces of this embodiment is multiple, and the second interface includes a first sub-interface and a second sub-interface, the first sub-interface is used to connect a first charging device, and the second sub-interface is used to connect a second charging device; the charging power of the first charging device is higher than the charging power of the second charging device; the control chip is configured to preferentially control the second switch element of the first sub-interface to be turned on, and when the second switch element of the first sub-interface is turned on, the second switch element of the second sub-interface is disconnected.

[0054] It needs to be explained that if a first charging device and a second charging device are connected at the same time, the circuit will first provide charging services for the first charging device. The control chip also realizes the function of automatically disconnecting the second switch of the second sub-interface when the second switch of the first sub-interface is turned on. Through priority control and mutual exclusion control mechanisms, the multi-interface conversion circuit of this embodiment effectively improves the safety of the charging process. It avoids safety hazards such as equipment damage or fire caused by improper power allocation. At the same time, the design also improves charging efficiency. High-power charging devices can obtain the required charging power faster, while low-power charging devices can obtain charging services when high-power devices are not connected. This flexible power allocation method enables the circuit to more efficiently meet the charging needs of a variety of devices.

[0055] It can be understood that when any of the type C interfaces is connected to a PD charger, the power input of the other type C interfaces will be switched to the new type C interface only when it is connected to a higher-power PD charger and meets the adaptation conditions, and the power input of the previous type C interface will be turned off.

[0056] Specifically, if it is identified as a charging device, the chip will give a switch control signal corresponding to the type C interface to control the type C interface to input power to the charging chip. If it is identified as an audio or video device connected, the chip switches the signal corresponding to the type C interface to the DP audio or video signal. If a USB signal transmission device is connected, the chip switches the signal corresponding to the type C interface to the USB signal.

[0057] In some embodiments of the present application, the multi-interface conversion circuit further includes a power supply selection unit, which is used to selectively control the energy storage unit to supply power to the external electronic device or to control the energy storage unit to receive electrical energy input from the external electronic device.

[0058] In some embodiments, the control chip is used to send a SINK_SOURCE_DRIVER (power role drive signal) signal to drive an external power switch chip to control whether the type C interface VBUS is forward powered or reverse powered. N type C interfaces require n groups of such signals, one group has 2 signals, one control input and one control output.

[0059] In some embodiments of the present application, the number of the first interface is 1.

[0060] That is to say, when any one of the multiple data interfaces 100 is used as the first interface to connect audio and video signals, the remaining data interfaces 100 only support data transmission or charging. Moreover, when one of the type C interfaces (as the first interface) is already connected to transmit audio and video signals, the remaining data interfaces 100 will not work if they are plugged into audio and video devices.

[0061] In some embodiments, the control chip further includes an SMBUS (system management bus) unit and a GPIO (general purpose input and output) interface. The SMBUS unit is used for communication and reporting the type C interface status to the CPU or the charging chip. The GPIO interface is used as a multi-channel reserved interface for other functions.

[0062] Furthermore, in order to better implement the multi-interface conversion circuit in any of the above embodiments, based on the above multi-interface conversion circuit, the present application also provides an electronic device, including the above multi-interface conversion circuit.

[0063] In some embodiments, the electronic device provided with the multi-interface conversion circuit is a computer, more specifically a laptop computer. The other electronic devices 400 may be peripherals such as a display screen, a speaker, a power adapter, etc. More specifically,

[0064] All type C ports of the computer of this application support full functions. Although the audio and video output functions cannot be used at the same time, when the chip or module detects that any type C interface display device is inserted, it can automatically switch the audio and video signals to this interface. At this time, the remaining interfaces only support data transmission and charging functions.

[0065] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0067] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0068] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0069] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A multi-interface switching circuit, characterized in that: include: Multiple data interfaces for connecting to other electronic devices; A detection unit, configured to detect a first interface among a plurality of data interfaces, wherein the first interface is a data interface currently connected to an audio device and / or a video device; A first signal output unit, the first signal output unit is used to output an audio signal and / or a video signal; A switching unit is used to switch the first signal output unit to the first interface.

2. The multi-interface switching circuit according to claim 1, characterized in that: The multi-interface conversion circuit also includes a second signal output unit, which is used to output a USB signal; the switching unit includes a plurality of first switch elements, which are arranged in a one-to-one correspondence with at least some of the data interfaces; one end of the first switch element is fixedly connected to the data interface, and the other end is switchably arranged between the first signal output unit and the second signal output unit.

3. The multi-interface conversion circuit according to claim 2, characterized in that: The data interface is a Type-C interface, and each of the data interfaces is connected to a first switch element.

4. The multi-interface conversion circuit according to claim 1, characterized in that: The detection unit is a configuration channel detection unit.

5. The multi-interface conversion circuit according to claim 1, characterized in that: The multi-interface conversion circuit also includes: An energy storage unit, the energy storage unit being used to supply power to other electronic devices through the data interface or to charge the energy storage unit through other electronic devices; A plurality of second switch elements are arranged in one-to-one correspondence with the plurality of data interfaces, and the second switch elements are arranged between the energy storage unit and the data interface, and are used to control the on / off between the energy storage unit and the data interface.

6. The multi-interface conversion circuit according to claim 5, characterized in that: The multi-interface conversion circuit also includes a control chip, and the detection unit and the switching unit are arranged on the control chip; the detection unit is also used to detect a second interface among multiple data interfaces, and the second interface is a data interface currently connected to a charging device; the control chip controls the second switch element corresponding to the second interface to turn on according to the detection signal of the detection unit.

7. The multi-interface conversion circuit according to claim 6, characterized in that: There are multiple second interfaces, and the second interfaces include a first sub-interface and a second sub-interface, the first sub-interface is used to connect a first charging device, and the second sub-interface is used to connect a second charging device; the charging power of the first charging device is higher than the charging power of the second charging device; The control chip is configured to preferentially control the second switch element of the first sub-interface to be turned on, and when the second switch element of the first sub-interface is turned on, the second switch element of the second sub-interface is turned off.

8. The multi-interface switching circuit according to claim 5, characterized in that: The multi-interface conversion circuit further includes a power supply selection unit, which is used to selectively control the energy storage unit to supply power to an external electronic device or to control the energy storage unit to receive electrical energy input from an external electronic device.

9. The multi-interface conversion circuit according to any one of claims 1 to 7, characterized in that: The number of the first interface is 1.

10. An electronic device, characterized in that: The multi-interface conversion circuit comprises the multi-interface conversion circuit as described in any one of claims 1 to 9.

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