CN217606353U - Interface circuit and electronic device - Google Patents

Abstract

The present disclosure relates to the technical field of electronic devices, and in particular to an interface circuit and an electronic device, wherein the interface circuit includes: the system comprises an interface, a control module, a first functional module, a second functional module and a switching module; the control module is connected with the interface and used for outputting a control signal according to the signal received by the interface; the first functional module is one of the universal serial bus module, the serial line debugging interface module and the universal asynchronous transceiving transmission module; the second functional module is one of the universal serial bus module, the serial line debugging interface module and the universal asynchronous transceiving transmission module; the switching module is respectively connected with the interface, the control module, the first functional module and the second functional module, and responds to the control signal to conduct the interface and the first functional module or the second functional module.

Description

Interface circuit and electronic equipment

technical field

The present disclosure relates to the technical field of electronic devices, and in particular, to an interface circuit and an electronic device.

Background technique

With the development and progress of technology, people have higher and higher requirements on the appearance of electronic devices such as mobile phones. In order to improve the consistency of the appearance of electronic devices, it is necessary to minimize the number of interfaces on electronic devices. In stages such as engineering debugging, due to the lack of interfaces on the electronic equipment, the whole machine needs to be dismantled during debugging. It wastes the resources of the whole machine and reduces the efficiency of product development.

It should be noted that the information disclosed in the above Background section is only for enhancement of understanding of the background of the present disclosure, and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide an interface circuit and an electronic device, thereby improving product development efficiency at least to a certain extent.

According to an aspect of the present disclosure, there is provided an interface circuit, the interface circuit comprising:

interface;

a control module, the control module is connected to the interface, and the control module is configured to output a control signal according to a signal received by the interface;

a first functional module, the first functional module is one of the universal serial bus module, the serial wire debugging interface module and the universal asynchronous transceiver transmission module;

The second functional module, the second functional module is one of the universal serial bus module, the serial wire debugging interface module and the universal asynchronous transceiver transmission module, the first functional module and the second functional module different;

a switching module, the switching module is respectively connected to the interface, the control module, the first functional module and the second functional module, the switching module responds to the control signal to switch the interface and the first functional module A functional module or the second functional module is turned on.

According to another aspect of the present disclosure, there is provided an electronic device including the above-mentioned interface circuit.

In the interface circuit provided by the embodiment of the present disclosure, the first functional module and the second functional module are connected to the same interface through the switching module, and the control module controls the first functional module or the second functional module and the interface to conduct conduction according to the signal received by the interface, It enables one interface to realize multiple functions, which can not only reduce the number of interfaces on electronic equipment, but also integrate multiple functions into the interface, so that debugging can be performed directly through the interface without dismantling the whole machine, avoiding wasting the whole machine, and It can also improve the efficiency of product development.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic block diagram of a first interface circuit provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic block diagram of a second interface circuit provided by an exemplary embodiment of the present disclosure;

3 is a schematic block diagram of a third interface circuit provided by an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic block diagram of a fourth interface circuit provided by an exemplary embodiment of the present disclosure;

FIG. 5 is a working flowchart of an interface circuit provided by an exemplary embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an electronic device provided by an exemplary embodiment of the present disclosure.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, such as according to the direction of the example described. It will be appreciated that if the device of the icon is turned upside down, the components described as "on" will become the components on "bottom". When a certain structure is "on" other structures, it may mean that a certain structure is integrally formed on other structures, or that a certain structure is "directly" arranged on other structures, or that a certain structure is "indirectly" arranged on another structure through another structure. other structures.

In electronic devices such as mobile phones, in order to improve the appearance of the electronic device, only a USB interface (for example, a Type-C interface or a Micro-USB interface, etc.) is often left on the electronic device. The sequence download of the electronic device is realized by the way of Bluetooth OTA (Over the Air Technology, over-the-air technology). In the after-sales maintenance or R&D and debugging stage, the whole machine should be dismantled, and the program should be downloaded to debug and verify the fault through the wired SWD (Serial Wire-Debug, serial wire debugging interface). In addition, the UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter) interface is required for the certification of the Bluetooth modules in some electronic devices. Often this time, it is necessary to disassemble the device and destroy the whole device. The wiring method leads the wiring of the UART module. On the one hand, it will waste the resources of the whole machine, and on the other hand, dismantling the whole machine, and then connecting and debugging reduces the efficiency of product development.

Exemplary embodiments of the present disclosure first provide an interface circuit 10, as shown in FIG. 1, the interface circuit 10 includes: an interface 110, a control module 120, a first function module 140, a second function module 150, and a switch module 130, which control the The module 120 is connected to the interface 110, and the control module 120 is used for outputting a control signal according to the signal received by the interface 110; the first functional module 140 is a universal serial bus (USB, Universal Serial Bus) module, a serial wire debugging interface module and a general One of the asynchronous transceiver transmission modules; the second functional module 150 is one of a universal serial bus module, a serial wire debugging interface module and a universal asynchronous transceiver transmission module, and the first functional module 140 and the second functional module 150 are different The switching module 130 is respectively connected to the interface 110, the control module 120, the first functional module 140 and the second functional module 150, and the switching module 130 responds to the control signal to conduct the interface 110 with the first functional module 140 or the second functional module 150.

In the interface circuit 10 provided by the embodiments of the present disclosure, the first functional module 140 and the second functional module 150 are connected to the same interface 110 through the switching module 130 , and the control module 120 controls the first functional module 140 or the first functional module 120 according to the signal received by the interface 110 . The two-function module 150 is connected to the interface 110, so that one interface 110 can realize multiple functions, which can not only reduce the number of interfaces 110 on the electronic device, but also integrate multiple functions into the interface 110. 110 for debugging and maintenance without dismantling the whole machine, avoiding waste of the whole machine, and also improving the efficiency of product development and maintenance.

Further, as shown in FIG. 2 , the interface circuit 10 provided by the embodiment of the present disclosure may further include a third functional module 160 and a fourth functional module 170 , the third functional module 160 is connected to the switching module 130 , and the third functional module 160 is a general-purpose module One of a serial bus module, a serial line debugging interface module, a general asynchronous transceiver and transmission module and an audio module; the fourth functional module 170 is connected to the switching module 130, and the switching module 130 responds to the control signal to connect the interface 110 to the first functional module 140, the second functional module 150, the third functional module 160 or the fourth functional module 170 is turned on, and the fourth functional module 170 is a universal serial bus module, a serial line debugging interface module, a universal asynchronous transceiver transmission module and an audio module One of the first functional module 140 , the second functional module 150 , the third functional module 160 and the fourth functional module 170 are all different.

Through the above interface circuit 10, the universal serial bus module, the serial wire debugging interface module, the general asynchronous transceiver transmission module and the audio module are integrated into the same interface 110, so that the interface 110 and the serial wire debugging interface can be integrated in the R&D and debugging stage. The module or general asynchronous transceiver module is connected to realize the downloading and testing of the program. When the electronic device is used as an electronic stethoscope, the interface 110 is used to connect the earphone, which avoids the need to set a special earphone hole on the electronic device and improves the consistency of the appearance of the electronic device. sex.

Further, as shown in FIG. 3 , the interface circuit 10 provided by the embodiment of the present disclosure may further include a power supply module 180, and the power supply module 180 is respectively connected with the first functional module 140, the second functional module 150, the third functional module 160, the fourth functional module 160, and the fourth functional module 140. The function module 170 , the interface 110 , the control module 120 and the switching module 130 are connected, and the power supply module is used for supplying power to the above modules.

Each part of the interface circuit 10 provided by the embodiment of the present disclosure will be described in detail below:

The interface 110 is an interface structure provided on the electronic device, which can be presented in the form of a general interface of the electronic device. For example, the interface 110 is a Type-C interface, a Micro-USB interface, a pogo interface, or a USB interface. The interface 110 may be provided on the frame of the electronic device. For example, the interface 110 may be provided on the bottom edge, the top edge, or the side edge of the electronic device.

The first functional module 140, the second functional module 150, the third functional module 160 and the fourth functional module 170 are respectively one of a universal serial bus module, a serial line debugging interface module, a universal asynchronous transceiver transmission module and an audio module . For example, the first functional module 140 is a universal serial bus module, the second functional module 150 is a serial wire debugging interface module, the third functional module 160 is a universal asynchronous transceiver module, and the fourth functional module 170 is an audio module. The first functional module 140, the second functional module 150, the third functional module 160 and the fourth functional module 170 may be provided on the main board of the electronic device.

As shown in FIG. 4 , the control module 120 determines the control signal according to the interface voltage Vbus, which is the voltage of the signal received by the interface 110 .

When the interface voltage Vbus is greater than the first preset voltage V1, the control module 120 outputs a first control signal, and the switching module 130 turns on the first function module 140 and the interface 110 in response to the first control signal; when the interface voltage Vbus is less than the first preset voltage When the voltage V1 is greater than the second preset voltage V2, the control module 120 outputs a second control signal, and the switching module 130 turns on the second function module 150 and the interface 110 in response to the second control signal; when the interface voltage Vbus is less than the second preset voltage Vbus When the value of the voltage V2 is greater than the third preset voltage V3, the control module 120 outputs a third control signal, and the switching module 130 turns on the third function module 160 and the interface 110 in response to the third control signal; when the interface voltage Vbus is less than the third control signal When the value of the voltage V3 is preset, the control module 120 outputs a fourth control signal, and the switching module 130 turns on the fourth function module 170 and the interface 110 in response to the fourth control signal; the first function module 140 is a serial line debugging interface module, and the first function module 140 is a serial line debugging interface module. The second functional module 150 is a universal serial bus module, the third functional module 160 is a universal asynchronous transceiver module, and the fourth functional module 170 is an audio module.

The first preset voltage V1 is greater than the second preset voltage V2, and the second preset voltage V2 is greater than the third preset voltage V3. The first preset voltage V1, the second preset voltage V2 and the third preset voltage V3 may be determined according to the actual voltages of the input signals of the modules. For example, in practical applications, the voltage of the USB signal is greater than the voltage of the SWD signal, the voltage of the SWD signal is greater than the voltage of the UART signal, and the voltage of the UART signal is greater than the voltage of the audio signal. The first preset voltage V1 may be between the voltage of the SWD signal and the voltage of the USB signal, the second preset voltage V2 may be between the voltage of the SWD signal and the voltage of the UART signal, and the third preset voltage V3 may be between. between the voltage of the UART signal and the voltage of the audio signal.

In a feasible implementation manner, the switching module 130 may include: a first switch S1, a second switch S2, a third switch S3, a fourth switch S4, a fifth switch S5 and a sixth switch S6, and the first switch S1 is connected to the first switch S1. A functional module 140 and the control module 120; the second switch S2 is connected to the second functional module 150 and the control module 120; the first switch S1 is connected to the third functional module 160 and the control module 120; the second switch S2 is connected to the fourth functional module 170 and the control module 120; The control module 120; the fifth switch S5 is connected to the first switch S1, the second switch S2, the interface 110 and the control module 120; the sixth switch S6 is connected to the third switch S3, the fourth switch S4, the interface 110 and the control module 120;

The first control signal controls the fifth switch S5 and the first switch S1 to be turned on to turn on the first functional module 140 and the interface 110, and the second control signal controls the fifth switch S5 and the second switch S2 to be turned on to turn on the first functional module 140 and the interface 110. Connect the second functional module 150 and the interface 110, the third control signal controls the sixth switch S6 and the third switch S3 to be turned on, so as to turn on the third functional module 160 and the interface 110, and the fourth control signal controls the sixth switch S6 and the The four switches S4 are turned on to turn on the fourth functional module 170 and the interface 110 .

In the embodiment of the present disclosure, at most one functional module and the interface 110 are connected at the same time. For example, when the first functional module 140 and the interface 110 are connected, the second functional module 150 , the third functional module 160 and the fourth functional module 170 are disconnected from the interface 110 .

In the embodiment of the present disclosure, the first switch S1 , the second switch S2 , the third switch S3 , the fourth switch S4 , the fifth switch S5 and the sixth switch S6 may be double-pole double-throw analog switches. Of course, in practical applications, the first switch S1 , the second switch S2 , the third switch S3 , the fourth switch S4 , the fifth switch S5 and the sixth switch S6 may also be other types of switches. This is limited.

The control module 120 may include: a first comparator C1, a second comparator C2 and a third comparator C3, the first comparator C1 is respectively connected to the interface 110, the first switch S1 and the second switch S2 for comparing the interface voltage Vbus and the first preset voltage V1, and output the first conduction signal A0_1 when the interface voltage Vbus is greater than the first preset voltage V1, and output the second conduction signal A0_2 when the interface voltage Vbus is less than the first preset voltage V1; The two comparators C2 are respectively connected to the interface 110, the fifth switch S5 and the sixth switch S6, and are used to compare the interface voltage Vbus with the second preset voltage V2, and output the third lead when the interface voltage Vbus is greater than the second preset voltage V2. The turn-on signal B0_1 is used to output the fourth turn-on signal B0_2 when the interface voltage Vbus is less than the second preset voltage V2; the third comparator C3 is respectively connected to the interface 110, the third switch S3 and the fourth switch S4 for comparing the interface voltage Vbus and the third preset voltage V3, and outputs the fifth turn-on signal A1_1 when the interface voltage Vbus is greater than the third preset voltage V3, and outputs the sixth turn-on signal A1_2 when the interface voltage Vbus is less than the third preset voltage V3

The third turn-on signal B0_1 and the first turn-on signal A0_1 form the first control signal, the third turn-on signal B0_1 turns on the fifth switch S5, the first turn-on signal A0_1 turns on the first switch S1; the third turn-on signal B0_1 and the second turn-on signal A0_2 form a second control signal, the third turn-on signal B0_1 turns on the fifth switch S5, the second turn-on signal A0_2 turns on the second switch S2; the fourth turn-on signal B0_2 and the fifth turn-on signal A1_1 forms the third control signal, the fourth turn-on signal B0_2 turns on the sixth switch S6, the fifth turn-on signal A1_1 turns on the third switch S3; the fourth turn-on signal B0_2 and the sixth turn-on signal A1_2 form the fourth control signal, The fourth turn-on signal B0_2 turns on the sixth switch S6, and the sixth turn-on signal A1_2 turns on the fourth switch S4.

For example, the first turn-on signal A0_1 is a high-level signal, the second turn-on signal A0_2 is a low-level signal, the third turn-on signal B0_1 is a high-level signal, and the fourth turn-on signal B0_2 is a low-level signal , the fifth turn-on signal A1_1 is a high-level signal, and the sixth turn-on signal A1_2 is a low-level signal. The first switch S1 , the third switch S3 and the fifth switch S5 are turned on in response to the high level signal, and the second switch S2 , the fourth switch S4 and the sixth switch S6 are turned on in response to the low level signal.

Referring to the flowchart shown in FIG. 5 , the on and off states of each switch in the embodiment of the present disclosure may be as follows:

At the first moment, when the interface voltage Vbus is greater than the first preset voltage V1, the fifth switch S5 and the first switch S1 are turned on, the other switches are turned off, and the first functional module 140 and the interface 110 are turned on.

At the second moment, when the interface voltage Vbus is greater than the second preset voltage V2 and less than the first preset voltage V1, the fifth switch S5 and the second switch S2 are turned on, the other switches are turned off, and the second functional module 150 and the interface 110 is turned on.

At the third moment, when the interface voltage Vbus is greater than the third preset voltage V3 and less than the second preset voltage V2, the sixth switch S6 and the third switch S3 are turned on, the other switches are turned off, and the third functional module 160 and the interface 110 is turned on.

At the fourth moment, when the interface voltage Vbus is lower than the third preset voltage V3, the sixth switch S6 and the fourth switch S4 are turned on, the other switches are turned off, and the fourth functional module 170 and the interface 110 are turned on.

It should be noted that the first moment, the second moment, the third moment and the fourth moment refer to different moments, and do not mean that they have a sequence or continuity in time.

In another feasible implementation manner of the present disclosure, the switching circuit may also include a first switch, a second switch, a third switch, and a fourth switch. The first switch is connected to the first functional module 140 and the interface 110 respectively, and the second switch is respectively connected to The second function module 150 and the interface 110 are connected, the third switch is connected to the third function module 160 and the interface 110 respectively, and the fourth switch is connected to the fourth function module 170 and the interface 110 respectively.

The control module 120 is connected to the first switch, the second switch, the third switch and the fourth switch, and the control module 120 determines to turn on the first switch, the second switch, the third switch and the fourth switch according to the voltage of the signal of the interface 110 One.

The control module 120 may include a voltage detection unit and a processing unit, the voltage detection unit is used for detecting the voltage of the input signal at the interface 110 , the processing unit is connected with the voltage detection unit, and the processing unit is used for outputting the control signal according to the voltage of the input signal at the interface 110 . The first switch, the second switch, the third switch and the fourth switch are connected to the processing unit, and the processing unit transmits the control signal to the first switch, the second switch, the third switch and the fourth switch.

The voltage detection unit may be a voltage sensor or a voltage detection circuit, and the processing unit may be a processor or a microprocessor. The processing unit may be shared with a processor or a microprocessor in the electronic device, or the processing unit may be a dedicated microprocessor, etc., which is not specifically limited in this embodiment of the present disclosure.

The power supply module 180 is respectively connected to the first functional module 140, the second functional module 150, the third functional module 160, the fourth functional module 170, the control module 120 and the switching module 130. The functional module 150 , the third functional module 160 , the fourth functional module 170 , the control module 120 and the switching module 130 are powered.

Further, the power supply module 180 is also connected to the interface 110 , and the power supply module 180 responds to the signal received by the interface 110 and sends signals to the first functional module 140 , the second functional module 150 , the third functional module 160 , the fourth functional module 170 , and the control module 120 . and the switching module 130 is powered. That is, the signal received by the interface 110 can be used as a trigger signal for the power supply module, and the power supply module supplies power to each module when the interface 110 receives the signal.

The power module 180 may be a power management chip in an electronic device, and the power module 180 is connected to the battery and each functional module. The power supply module 180 can supply power to each functional module selectively. At this time, the power supply module 180 can be connected to the control module 120 , and the power supply module 180 supplies power to the corresponding functional module according to the control signal output by the control module 120 .

For example, when the control module 120 outputs the first control signal, the control module 120 controls the power supply module 180 to supply power to the first functional module 140 . When the control module 120 outputs the second control signal, the control module 120 controls the power supply module 180 to supply power to the second functional module 150 . When the control module 120 outputs the third control signal, the control module 120 controls the power supply module 180 to supply power to the third functional module 160 . When the control module 120 outputs the fourth control signal, the control module 120 controls the power supply module 180 to supply power to the fourth functional module 170 .

That is, when the interface voltage Vbus is greater than the first preset voltage V1, the power supply module supplies power to the serial bus module; when the interface voltage Vbus is greater than the second preset voltage V2 and less than or equal to the first preset voltage V1, power supply. The module supplies power to the line debugging interface module; when the interface voltage Vbus is greater than the third preset voltage V3 and less than or equal to the second preset voltage V2, the power supply module supplies power to the general asynchronous transceiver module; when the interface voltage Vbus is less than or equal to the third When the preset voltage is V3, the power supply module supplies power to the audio module.

Of course, in practical applications, the power supply module 180 can also supply power to the first functional module 140 , the second functional module 150 , the third functional module 160 and the fourth functional module 170 at the same time, which is not limited in this embodiment of the present disclosure.

When the interface 110 has a signal input, the signal input by the interface 110 can also be used to charge the battery of the electronic device. The signal input from the interface 110 passes through the power module 180 and flows to the battery to charge the battery. Wherein, when the voltage of the signal received by the interface 110 is greater than the preset threshold, the power module 180 can charge the battery. For example, when the interface voltage Vbus is greater than the first preset voltage V1, the power module 180 charges the battery.

In the embodiment of the present disclosure, the audio module can be used as a signal output member of an electronic stethoscope. For example, the sound recorder inside the electronic device is used as the auscultation head of the electronic stethoscope to collect the patient's biological sound, and the sound signal collected by the recorder is converted into an electrical signal through the audio module. When the electronic device is used as an electronic stethoscope, the audio module converts the signals collected by the recorder into electrical signals and transmits them to the interface 110. The interface 110 can be connected to an earphone, and the electrical signals are converted into sound signals through the earphones and transmitted to the doctor. By sharing the interface 110 with other functional modules, the reduction of the interface 110 in the electronic device with the function of the electronic stethoscope is realized, which is beneficial to the consistency and aesthetics of the appearance of the electronic device.

In the interface circuit 10 provided by the embodiments of the present disclosure, the first functional module 140 and the second functional module 150 are connected to the same interface 110 through the switching module 130 , and the control module 120 controls the first functional module 140 or the first functional module 120 according to the signal received by the interface 110 . The two-function module 150 is connected to the interface 110, so that one interface 110 can realize multiple functions, which can not only reduce the number of interfaces 110 on the electronic device, but also integrate multiple functions into the interface 110. For debugging, it is not necessary to dismantle the whole machine, to avoid wasting the whole machine, and it can also improve the efficiency of product development.

Exemplary embodiments of the present disclosure also provide an electronic device including the above-mentioned interface circuit 10 .

The interface circuit 10 includes: an interface 110 , a control module 120 , a first functional module 140 , a second functional module 150 and a switching module 130 , the control module 120 is connected to the interface 110 , and the control module 120 is used for signals received by the interface 110 output control signal; the first functional module 140 is one of a universal serial bus (USB, Universal Serial Bus) module, a serial wire debugging interface module, a general asynchronous transceiver transmission module and an audio module; the second functional module 150 is a general One of a serial bus module, a serial line debugging interface module, a general asynchronous transceiver and transmission module and an audio module, the first functional module 140 and the second functional module 150 are different; the switching module 130 is respectively connected to the interface 110, the control module 120, The first functional module 140 and the second functional module 150, and the switching module 130 turns on the interface 110 and the first functional module 140 or the second functional module 150 in response to the control signal.

In the electronic device provided by the embodiments of the present disclosure, the first functional module 140 and the second functional module 150 are connected to the same interface 110 through the switching module 130 , and the control module 120 controls the first functional module 140 or the second functional module 120 according to the signal received by the interface 110 . The function module 150 is connected to the interface 110, so that one interface 110 can realize multiple functions, which can not only reduce the number of interfaces 110 on the electronic device, but also integrate multiple functions into the interface 110, so that debugging can be performed directly through the interface 110. , do not need to dismantle the whole machine, avoid wasting the whole machine, and can also improve the efficiency of product development.

Further, as shown in FIG. 6 , the electronic device provided by the embodiment of the present disclosure may further include a display screen 20 , a frame 30 , a back cover 40 , a main board 50 and a battery 60 , and the display screen 20 and the back cover 40 are respectively disposed on the sides of the frame 30 . On both sides, the display screen 20 , the frame 30 and the back cover 40 form an accommodating space, and the main board 50 and the battery 60 are arranged in the accommodating space.

The interface 110 may be provided on the frame 30, for example, the frame 30 may be a rectangular frame or a structure similar to a rectangular frame. The frame 30 may include a top edge, a bottom edge and a side edge between the top edge and the bottom edge, and the interface 110 may be provided on the top edge, the bottom edge or the side edge.

The first functional module 140 , the second functional module 150 , the third functional module 160 , the fourth functional module 170 , the control module 120 and the switching module 130 may be provided on the mainboard 50 . That is, the universal serial bus module, the serial line debugging interface module, the universal asynchronous transceiver and transmission module and the audio module can be arranged on the main board 50 .

The power supply module 180 is connected to the battery 60 . On the one hand, the power supply module 180 can provide power of the battery 60 to each functional module, and on the other hand, the power supply module 180 can also be used to charge the battery 60 . For example, when the voltage of the signal received by the interface 110 is greater than the preset threshold, the power supply module 180 charges the battery 60 .

In the embodiment of the present disclosure, the electronic device may be a mobile phone, a tablet computer, a watch, a wristband, a smart glasses, a smart helmet, an electronic reader, an electronic stethoscope, or a laptop computer.

In the electronic device provided by the embodiments of the present disclosure, the first functional module 140 and the second functional module 150 are connected to the same interface 110 through the switching module 130 , and the control module 120 controls the first functional module 140 or the second functional module 120 according to the signal received by the interface 110 . The function module 150 is connected to the interface 110, so that one interface 110 can realize multiple functions, which can not only reduce the number of interfaces 110 on the electronic device, improve the appearance of the electronic device, but also integrate multiple functions into the interface 110. Debugging directly through the interface 110 does not require dismantling the whole machine, avoids wasting the whole machine, and can also improve the efficiency of product development.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the appended claims.

Claims (10)

1. An interface circuit, wherein the interface circuit comprises:

an interface;

the control module is connected with the interface and used for outputting a control signal according to the signal received by the interface;

the first function module is one of a universal serial bus module, a serial line debugging interface module and a universal asynchronous transceiving transmission module;

the second functional module is one of the universal serial bus module, the serial line debugging interface module and the universal asynchronous transceiving transmission module, and the first functional module is different from the second functional module;

the switching module is respectively connected with the interface, the control module, the first functional module and the second functional module, and responds to the control signal to conduct the interface and the first functional module or the second functional module.

2. The interface circuit of claim 1, wherein the interface circuit further comprises:

the third functional module is connected with the switching module and is one of the universal serial bus module, the serial line debugging interface module, the universal asynchronous receiving and transmitting module and the audio module;

a fourth functional module, the fourth functional module is connected to the switching module, the switching module responds to the control signal to switch on the interface with the first functional module, the second functional module, the third functional module or the fourth functional module, the fourth functional module is one of the universal serial bus module, the serial line debugging interface module, the universal asynchronous transceiving transmission module and the audio module, and the first functional module, the second functional module, the third functional module and the fourth functional module are all different.

3. The interface circuit of claim 2, wherein the control module determines the control signal based on an interface voltage, the interface voltage being a voltage of a signal received by the interface.

4. The interface circuit according to claim 3, wherein when the interface voltage is greater than a first predetermined voltage value, the control module outputs a first control signal, and the switching module switches on the first functional module and the interface in response to the first control signal;

when the interface voltage is less than or equal to the first preset voltage and greater than a second preset voltage, the control module outputs a second control signal, and the switching module responds to the second control signal to conduct the second functional module and the interface;

when the interface voltage is less than or equal to the second preset voltage value and greater than a third preset voltage value, the control module outputs a third control signal, and the switching module responds to the third control signal to conduct the third functional module and the interface;

when the interface voltage is less than or equal to the third preset voltage value, the control module outputs a fourth control signal, and the switching module responds to the fourth control signal to conduct the fourth functional module and the interface;

the first preset voltage is greater than the second preset voltage, the second preset voltage is greater than the third preset voltage, the first functional module is a universal serial bus module, the second functional module is a serial line debugging interface module, the third functional module is a universal asynchronous receiving and transmitting module, and the fourth functional module is an audio module.

5. The interface circuit of claim 4, wherein the switching module comprises:

a first switch connecting the first functional module and the control module;

a second switch connecting the second functional module and the control module;

a third switch connecting the third functional module and the control module;

a fourth switch connecting the fourth functional module and the control module;

a fifth switch connected to the first switch, the second switch, the interface, and the control module;

a sixth switch that connects the third switch, the fourth switch, the interface, and the control module;

wherein the first control signal controls the fifth switch and the first switch to turn on the first functional module and the interface, the second control signal controls the fifth switch and the second switch to turn on the second functional module and the interface, the third control signal controls the sixth switch and the third switch to turn on the third functional module and the interface, and the fourth control signal controls the sixth switch and the fourth switch to turn on the fourth functional module and the interface.

6. The interface circuit of claim 5, wherein the control module comprises:

the first comparator is respectively connected with the interface, the first switch and the second switch and is used for comparing the interface voltage with the first preset voltage, outputting a first conduction signal when the interface voltage is greater than the first preset voltage and outputting a second conduction signal when the interface voltage is less than the first preset voltage;

the second comparator is respectively connected with the interface, the fifth switch and the sixth switch, and is used for comparing the interface voltage with the second preset voltage, outputting a third conducting signal when the interface voltage is greater than the second preset voltage, and outputting a fourth conducting signal when the interface voltage is less than the second preset voltage;

the third comparator is respectively connected with the interface, the third switch and the fourth switch, and is used for comparing the interface voltage with the third preset voltage, outputting a fifth conduction signal when the interface voltage is greater than the third preset voltage, and outputting a sixth conduction signal when the interface voltage is less than the third preset voltage;

wherein the third turn-on signal and the first turn-on signal form the first control signal, the third turn-on signal turns on the fifth switch, and the first turn-on signal turns on the first switch; the third conducting signal and the second conducting signal form the second control signal, the fifth switch is conducted by the third conducting signal, and the second switch is conducted by the second conducting signal; the fourth turn-on signal and the fifth turn-on signal form the third control signal, the fourth turn-on signal turns on the sixth switch, and the fifth turn-on signal turns on the third switch; the fourth conducting signal and the sixth conducting signal form the fourth control signal, the fourth conducting signal conducts the sixth switch, and the sixth conducting signal conducts the fourth switch.

7. The interface circuit of claim 1, wherein the interface circuit further comprises:

the power module is respectively connected with the first functional module, the second functional module, the control module and the interface, and responds to the signal received by the interface to supply power to the first functional module, the second functional module and the control module.

8. The interface circuit of claim 7, wherein the power module is further configured to transmit signals received by the interface to a battery in an electronic device to charge the battery.

9. An interface circuit as claimed in any one of claims 1 to 8, wherein the interface is a universal USB interface.

10. An electronic device, characterized in that the electronic device comprises an interface circuit as claimed in any one of claims 1-9.

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