External device, electronic device and power supply control method

Abstract

The present application discloses an external device, an electronic device, and a power supply control method, wherein the external device includes: a first connector / interface, used to establish a connection with an electronic device having a second interface / connector; a first control chip, connected to the first connector / interface signal, and the first control chip stores power receiving parameter information required by the external device, so that when the external device and the electronic device are connected, the electronic device can supply power to the external device according to the power receiving parameter information. The technical solution of the present application stores the power receiving parameter information required by the external device in the first control chip in the external device, so that when the external device and the electronic device are connected, the electronic device can supply power to the external device according to the power receiving parameter information, and the electronic device can determine the operating voltage and current required by the external device based on the power receiving parameter information, so as to provide the external device with an adapted operating voltage and current to ensure its normal operation.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and more specifically, to an external device, an electronic equipment, and a power supply control method. Background Art

[0002] Generally, when an external device is connected to an electronic device, it needs to work through the power provided by the electronic device based on the connection relationship with the electronic device. The external device needs the electronic device to provide an adapted working voltage and current in order to operate normally.

[0003] Since different external devices require different operating voltages and currents, when an interface or connector of an electronic device is connected to an external device, the electronic device needs to determine the operating voltage and current required by the external device in order to provide an adaptive operating voltage and current for the external device to ensure its normal operation. Summary of the invention

[0004] In view of this, the present application provides an external device, an electronic device, and a power supply control method, the scheme is as follows:

[0005] An external device, comprising:

[0006] A first connector / interface, used to establish a connection with an electronic device having a second interface / connector;

[0007] A first control chip is connected to the first connector / interface signal. The first control chip stores power receiving parameter information required by the external device, so that when the external device is connected to the electronic device, the electronic device can supply power to the external device according to the power receiving parameter information.

[0008] Preferably, in the above-mentioned external device, the external device further includes a multi-port repeater, and the multi-port repeater is connected to the first connector / interface through a first port and is connected to the first control chip through a second port.

[0009] Preferably, in the above external device, the multi-port repeater further has at least one third port, and the at least one third port is connected to an output component;

[0010] The output component includes: at least one of an audio output component, a wireless charging component and a heat dissipation component.

[0011] Preferably, the above-mentioned external device also includes: a first power control chip connected to the first connector / interface, and the first power control chip can communicate with the second power control chip of the electronic device about the power receiving parameter information required by the external device when the external device is connected to the electronic device.

[0012] The present application also provides an electronic device, including:

[0013] A second interface / connector, used to establish a connection with an external device having a first connector / interface, wherein the first control chip of the external device stores power receiving parameter information required by the external device;

[0014] a second control chip, connected to the second interface / connector signal, capable of obtaining the power receiving parameter information from the first control chip;

[0015] an output circuit connected to the second interface / connector;

[0016] Wherein, the second control chip can control the output circuit to supply power to the external device according to the power receiving parameter information when the external device is connected to the electronic device.

[0017] Preferably, in the above electronic device, the external device has a first control chip and a first power control chip respectively connected to the first connector / interface; the first control chip and the first power control chip both store the power receiving parameter information;

[0018] The electronic device comprises a configuration channel logic chip connected to the second interface / connector, and is used to obtain detection parameters of the second interface / connector, and determine the connection state between the electronic device and the external device based on the detection parameters; the second control chip can obtain the power receiving parameter information from the first control chip when the external device is connected to the electronic device;

[0019] Alternatively, the electronic device includes a second power control chip connected to the second interface / connector, which is used to obtain detection parameters of the second interface / connector, determine the connection status between the electronic device and the external device based on the detection parameters, and when the external device establishes a connection with the electronic device, obtain the power receiving parameter information from the first power control chip.

[0020] Preferably, in the above electronic device, the output circuit includes a switch circuit, the switch circuit has a plurality of power ports, and different power ports input different voltages and currents;

[0021] Based on the power receiving parameter information, the second control chip controls the power port in the switch circuit that is adapted to the power receiving parameter to be connected to the second interface / connector, and controls other power ports to be disconnected from the second interface / connector.

[0022] Preferably, in the above-mentioned electronic device, the second control chip is connected to the output circuit through an embedded controller; the second control chip controls the conduction state of each of the power ports and the second interface / connector through the embedded controller.

[0023] The present application also provides a power supply control method, comprising:

[0024] The electronic device detects the connection status with the external device;

[0025] When the electronic device is connected to the external device, the electronic device acquires the power receiving parameter information pre-stored by the external device;

[0026] The electronic device supplies power to the external device according to the power receiving parameter information.

[0027] Preferably, in the above power supply control method, the external device has a first power supply control chip and a first control chip, and the first power supply control chip and the first control chip respectively store the power receiving parameter information;

[0028] The electronic device acquires the power receiving parameter information pre-stored by the external device, including:

[0029] The electronic device determines whether it has a second power control chip based on the self-test result;

[0030] If yes, the electronic device obtains the power receiving parameter information from the first power control chip based on the communication between the second power control chip and the first power control chip;

[0031] If not, the second control chip of the electronic device obtains the power receiving parameter information from the first control chip.

[0032] It can be known from the above description that in the external device, electronic device and power supply control method provided by the technical solution of the present application, the external device includes: a first connector / interface, used to establish a connection with an electronic device having a second interface / connector; a first control chip, connected to the first connector / interface signal, the first control chip stores the power receiving parameter information required by the external device, so that when the external device is connected to the electronic device, the electronic device can supply power to the external device according to the power receiving parameter information. The technical solution of the present application, by storing the power receiving parameter information required by the external device in the first control chip in the external device, when the external device is connected to the electronic device, the electronic device can supply power to the external device according to the power receiving parameter information, and the electronic device can determine the working voltage and current required by the external device based on the power receiving parameter information, so as to provide the external device with an adapted working voltage and current to ensure its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0034] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0035] Figure 1 A schematic diagram of the structure of an external device provided in an embodiment of the present application;

[0036] Figure 2 A schematic diagram of the structure of another external device provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of the structure of another external device provided in an embodiment of the present application;

[0038] Figure 4 A schematic diagram of the structure of another external device provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of the structure of another external device provided in an embodiment of the present application;

[0040] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0041] Figure 7 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application;

[0042] Figure 8 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application;

[0043] Fig. 9 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application;

[0044] Fig.10 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application;

[0045] Fig.11 This is a structural schematic diagram of an electronic device and an external device connected via a first connector / interface and a second interface / connector in an embodiment of the present application;

[0046] Fig.12 A flowchart of a power supply control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] like Figure 1 As shown, Figure 1A structural schematic diagram of an external device provided in an embodiment of the present application, the external device includes: a first connector / interface 11, the first connector / interface 11 is used to establish a connection with an electronic device having a second interface / connector; a first control chip 12, the first control chip 12 is signal-connected to the first connector / interface 11, and the first control chip 12 stores the power receiving parameter information required by the external device, so that when the external device and the electronic device are connected, the electronic device can supply power to the external device according to the power receiving parameter information. The external device and the electronic device are connected through the adapter plug-in of the first connector / interface 11 and the second interface / connector.

[0050] The technical solution described in the embodiment of the present application stores the power receiving parameter information required by the external device in the first control chip 12 of the external device, so that when the external device is connected to the electronic device, the electronic device can supply power to the external device according to the power receiving parameter information, and the electronic device can determine the operating voltage and current required by the external device based on the power receiving parameter information, so as to provide the external device with an adaptive operating voltage and current to ensure its normal operation.

[0051] The first connector / interface 11 is a universal serial bus (USB) connector / interface, such as a Type-C connector / interface. The first connector / interface 11 is connected to the first control chip 12 via a universal serial bus signal. In the embodiment of the present application, the universal serial bus is any one of USB 4.0, USB 3.0, USB 3.1, USB 3.2 and USB 2.0.

[0052] like Figure 2 As shown, Figure 2 A schematic diagram of another external device provided in an embodiment of the present application, based on Figure 1 As shown, Figure 2 The external device shown also includes a multi-port repeater (HUB) 13, which is connected to the first connector / interface 11 through a first port and to the first control chip 12 through a second port. The multi-port repeater 13 is used to connect the first connector / interface 11 and the first control chip 12, and other ports can be led out on the data bus between the two to connect other electronic components, so as to facilitate the expansion of the circuit in the external device.

[0053] The multi-port repeater 13 is a universal serial bus multi-port repeater (USB HUB). The first port is connected to the first connector / interface 11 by a universal serial bus signal. The second port is connected to the first control chip 12 by a universal serial bus signal.

[0054] like Figure 3 As shown, Figure 3 A structural diagram of another external device provided in an embodiment of the present application, based on Figure 2 As shown, Figure 3 In the external device shown, the multi-port repeater 13 also has at least one third port, and the at least one third port is connected to the output component 14. The output component 14 includes: at least one of an audio output component, a wireless charging component, and a heat dissipation component.

[0055] like Figure 4 As shown, Figure 4 A structural diagram of another external device provided in an embodiment of the present application, based on Figure 3 As shown, Figure 3 In the external device shown, the output component 14 includes an audio output component 143, and the audio output component 143 includes a speaker. When the output component 14 includes the audio output component 143, the output component 14 also includes an audio chip 141 and an amplifier 142.

[0056] The multi-port repeater 13 is connected to the audio chip 141 through a single third port, the audio chip 141 is connected to the amplifier 142 , and the amplifier 142 is connected to the audio output component 143 .

[0057] like Figure 5 As shown, Figure 5 A structural diagram of another external device provided in an embodiment of the present application, based on the above embodiment, Figure 5 The external device shown also includes: a first power control chip 15 connected to the first connector / interface 11, and the first power control chip 15 can communicate with the second power control chip of the electronic device to obtain the power receiving parameter information required by the external device when the external device is connected to the electronic device. Figure 5 The method shown is Figure 4 The first power control chip 15 is set as an example for explanation. Obviously, it can also be Figure 1-Figure 3 The first power control chip 15 is set based on any of the methods.

[0058] The external device may also include a power supply circuit 16 connected to the first connector / interface 11, which is used to supply power to other powered components in the external device based on the current power supply output voltage VOUT of the electronic device. The voltage VOUT is equal to the voltage currently output by the electronic device through the second connector / interface. For example, if the current electronic device outputs a 20V voltage through the second connector / interface, the voltage VOUT is equal to 20V. The power supply circuit 16 is not limited to Figure 5The external device shown, the external device described in any embodiment of the present application can be provided with the power circuit 16.

[0059] The first power control chip 15 also stores the power receiving parameter information. The power receiving parameter information stored in the first power control chip 15 and the first control chip 12 can be in the same or different form, and the power receiving parameter information stored in both can represent the working voltage and working current required by the external device.

[0060] If the electronic device has a second power control chip, the electronic device preferentially obtains the power receiving parameter information through the communication between the second power control chip and the first power control chip 15. When the electronic device has a second power control chip, the second power control chip is used to determine the connection status between the second connector / interface in the electronic device and the external device and to supply power to the external device, so as to reduce the occupation of the performance of the second control chip of the electronic device.

[0061] If the electronic device does not have the second power control chip, the electronic device obtains the power receiving parameter information from the first control chip 12 through the second control chip.

[0062] Based on the above embodiments, another embodiment of the present application further provides an electronic device, such as Figure 6 As shown, Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, combined with Figure 6 And the description of the drawings of the above embodiment about the external device, the electronic device includes:

[0063] A second interface / connector 21, wherein the second interface / connector 21 is used to establish a connection with an external device having a first connector / interface 11, wherein the first control chip 12 of the external device stores power receiving parameter information required by the external device; wherein the external device includes the external device described in the above embodiment;

[0064] A second control chip 22, the second control chip 22 is signal-connected to the second interface / connector 21, and can obtain the power receiving parameter information from the first control chip 12;

[0065] An output circuit 23 connected to the second interface / connector 21;

[0066] Wherein, the second control chip 22 can control the output circuit 23 to supply power to the external device according to the power receiving parameter information when the external device is connected to the electronic device.

[0067] The electronic device described in the embodiment of the present application can obtain the power receiving parameter information from the first control chip 12 when the external device is connected to the electronic device, so as to determine the working voltage and current required by the external device, so as to provide the external device with an adaptive working voltage and current to ensure its normal operation.

[0068] For the external device, if the external device has a first control chip 12 and a first power control chip 15 respectively connected to the first connector / interface 11; the first control chip 12 and the first power control chip 15 both store the power receiving parameter information. The structure of the electronic device can be as follows Figure 7 or Figure 8 shown.

[0069] like Figure 7 As shown, Figure 7 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application, in which the electronic device includes a configuration channel logic chip 24 connected to the second interface / connector 21, the configuration channel logic chip 24 is used to obtain the detection parameters of the second interface / connector 21, and determine the connection status between the electronic device and the external device based on the detection parameters; the second control chip 22 can obtain the power receiving parameter information from the first control chip 12 when the external device is connected to the electronic device. The second control chip 22 is connected to the second interface / connector 21 via a universal serial bus. The second control chip 22 can obtain the power receiving parameter information from the first control chip 12 based on the universal serial bus connected to the second interface / connector 21.

[0070] like Figure 8 As shown, Figure 8 A structural schematic diagram of another electronic device provided in an embodiment of the present application, in which the electronic device includes a second power control chip 25 connected to the second interface / connector 21, and the second power control chip 25 is used to obtain detection parameters of the second interface / connector 21, and determine the connection status between the electronic device and the external device based on the detection parameters. When the external device is connected to the electronic device, the power receiving parameter information is obtained from the first power control chip 15.

[0071] like Fig. 9 As shown, Fig. 9 This is a structural diagram of another electronic device provided in an embodiment of the present application. In this embodiment, the output circuit 23 includes a switch circuit 231. The switch circuit 231 has a plurality of power ports. Different power ports input different voltages and currents. Fig. 9Two power ports are shown, inputting 5V and 20V voltages respectively. The output voltage of the power port can be set to be the same as the input voltage, and the output voltage of the power port can also be set to be different from the input voltage in other ways. The second control chip 22 controls the power port adapted to the power receiving parameters in the switch circuit 231 to connect to the second interface / connector 21 based on the power receiving parameter information, and controls the other power ports to disconnect from the second interface / connector 21. Obviously, the number of power ports and the voltage and current of each input can be set based on demand, and is not limited to Fig. 9 The currents input to each power port may be the same, such as 3A, or the currents input to each power port may not be exactly the same.

[0072] Optional, such as Fig. 9 As shown, the second control chip 22 is connected to the output circuit 23 via an embedded controller (EC) 26 ; the second control chip 22 controls the conduction state of each of the power ports and the second interface / connector 21 via the embedded controller 26 .

[0073] like Fig.10 As shown, Fig.10 A schematic diagram of the structure of another electronic device provided in an embodiment of the present application, in which a Fig. 9 As shown, Fig.10 In the illustrated embodiment, the switch circuit 231 includes a plurality of switch sub-circuits, and each switch sub-circuit has a corresponding power port.

[0074] In the embodiment of the present application, the second control chip 22 can be a USB controller, and the existing PCH (South Bridge Chip) or CPU (Central Processing Unit) in the electronic device can be reused as the second control chip 22. This eliminates the need to add a separate chip, which has a lower cost.

[0075] like Fig.11 As shown, Fig.11 This is a structural diagram of an electronic device and an external device connected through a first connector / interface and a second connector / connector in an embodiment of the present application. The electronic device can be a desktop, an all-in-one computer, or a laptop computer. The first connector / interface 11 and the second interface / connector 21 are adapted Type-C connectors and Type-C interfaces. The first connector / interface 11 can be set as a Type-C connector, and the second interface / connector 21 can be set as a Type-C interface.

[0076] Generally, most of the USB interfaces used to connect external devices in conventional electronic devices only support 5V3A power output, that is, 15W power consumption.

[0077] The electronic device described in the embodiment of the present application is provided with one of the second power control chip 25 and the configuration channel logic chip 24, and can detect whether the second interface / connector 21 is connected to an external device based on the second power control chip 25 or the configuration channel logic chip 24, so that the electronic device can obtain the power receiving parameter information pre-stored by the external device when determining that the external device is connected, and provide the required voltage and current to the external device through the output circuit 23 based on the power receiving parameter information. The electronic device does not need to steal the pins of the electronic device to detect whether the second interface / connector 21 is connected to an external device.

[0078] The cost of configuring the channel logic chip 24 is lower, which is equivalent to the second power control chip 25. In addition, the solution of configuring the channel logic chip 24 to detect whether the second interface / connector 21 is connected to an external device has higher compatibility and does not need to steal pins of electronic devices.

[0079] In the embodiment of the present application, the output component in the external device can be a speaker, and the external device is an external audio output device of the electronic device. For an external audio output device using a Type-C connector, an MCU (microcontroller unit chip) will be provided, and the MCU can be reused as the first control chip 12. In this way, there is no need to add additional chips in the external device, thereby reducing the production cost. Some registers in the MCU can be set as identification information as power receiving parameter information. For an electronic device connected to an external device, when the electronic device is turned on, if the electronic device is not provided with a second power control chip, the PCH obtains the identification information stored in the MCU. Based on the obtained identification information, the PCH enables the power port corresponding to the output circuit 23 through the GPIO (general input and output port) to connect to the second interface / connector 21 to power the external device.

[0080] Based on the above description, it can be known that since some registers are set as identification information in the MCU to mark the external audio output device, after the external audio output device is connected to the electronic device through the adapted Type-C connector and the connector, the channel logic chip 24 configured in the electronic device confirms that the external audio output device is inserted, and the PCH reads the identification information from the MCU based on the universal serial bus to determine the required working voltage and current of the external audio output device, and then the PCH sends the determination result to the EC, and the power output of the 5V / 3V power supply of the Type-C interface of the electronic device is switched to the 20V / 3V power supply output through the EC to meet the high power consumption requirements of the external audio output device.

[0081] In the external device described in the present application, the output component 14 can be set to include both an audio output component and a wireless charging component, and the two are respectively connected to independent third ports. In this way, the external device can not only be used for audio data output, but also for wireless charging of other devices, as a smart speaker with wireless charging function.

[0082] The external device can be provided with a plurality of output components 14, which are respectively connected to independent third ports. The external device has at least two working modes, and the power required by the external device is different in different working modes. For example, for an external device having both an audio output component and a wireless charging component, the power required when the two output components work separately is different, and the power required when one works alone is different from the power required when the two work simultaneously. Based on this, in an embodiment of the present application, when there are multiple output components, the external device stores the power receiving parameter information of each of the output components, so that the electronic device can detect the working status of each output component in real time based on the communication connection status with the external device, and determine the power required by the external device in real time based on the working status of each output component and the power receiving parameter information of each output component, so as to adjust the power output to adapt to the current working mode of the external device.

[0083] Based on the above embodiment, another embodiment of the present application further provides a power supply control method. Fig.12 As shown, Fig.12 A schematic diagram of a flow chart of a power supply control method provided in an embodiment of the present application, the method comprising:

[0084] Step S11: the electronic device detects the connection status with the external device.

[0085] Based on the above embodiments, the electronic device can detect the connection status with the external device through the second power control chip or the configuration channel logic chip.

[0086] Step S12: when the electronic device is connected to the external device, the electronic device obtains the power receiving parameter information pre-stored by the external device.

[0087] Based on the above embodiments, based on the circuit structure of the electronic device, the electronic device can obtain the power receiving parameter information from the first control chip of the external device through the second control chip, or the electronic device can obtain the power receiving information from the first power control chip of the external device through the second power control chip.

[0088] Step S13: the electronic device supplies power to the external device according to the power receiving parameter information.

[0089] Based on the above embodiment, the electronic device supplies power to the external device through the output circuit 23.

[0090] The external device has a first power control chip and a first control chip, and the first power control chip and the first control chip respectively store the power receiving parameter information, and can be adapted to electronic devices with different circuit structures to obtain the power receiving parameter information based on different paths.

[0091] In the embodiment of the present application, the electronic device obtains the power receiving parameter information pre-stored by the external device, including:

[0092] The electronic device determines whether it has a second power control chip based on the self-test result; the electronic device can perform the above self-test process after being turned on or detecting that an external device is connected;

[0093] If yes, the electronic device obtains the power receiving parameter information from the first power control chip based on the communication between the second power control chip and the first power control chip;

[0094] If not, the second control chip of the electronic device obtains the power receiving parameter information from the first control chip.

[0095] The power supply control method described in the embodiment of the present application can enable the electronic device to provide an adaptive voltage and current to the external device based on the power receiving information pre-stored in the external device, so as to ensure the normal operation of the external device.

[0096] The various embodiments in this specification are described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0097] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which 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. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0098] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0099] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An external device, include: A first connector / interface, used to establish a connection with an electronic device having a second interface / connector; a first control chip connected to the first connector / interface signal, wherein the first control chip stores power receiving parameter information required by the external device, so that when the external device is connected to the electronic device, the electronic device can supply power to the external device according to the power receiving parameter information; the external device also includes a first power control chip connected to the first connector / interface, and both the first power control chip and the first control chip store power receiving parameter information required by the external device; in: In the case where the electronic device has a second power control chip, the electronic device obtains the power receiving parameter information through communication between the second power control chip and the first power control chip; In the case that the electronic device does not have the second power control chip, the electronic device obtains the power receiving parameter information from the first control chip through the second control chip.

2. The external device according to claim 1, further comprising a multi-port repeater, wherein the multi-port repeater is connected to the first connector / interface via a first port and is connected to the first control chip via a second port.

3. The external device according to claim 2, wherein the multi-port repeater further comprises at least one third port, and the at least one third port is connected to an output component; The output component include: At least one of an audio output component, a wireless charging component, and a heat dissipation component.

4. An electronic device, include: A second interface / connector, used to establish a connection with an external device having a first connector / interface, wherein the first control chip of the external device stores power receiving parameter information required by the external device; a second control chip, connected to the second interface / connector signal, capable of obtaining the power receiving parameter information from the first control chip; an output circuit connected to the second interface / connector; Wherein, the second control chip can control the output circuit to supply power to the external device according to the power receiving parameter information when the external device is connected to the electronic device; in, The external device also includes a first power control chip connected to the first connector / interface; In the case where the electronic device has a second power control chip, the electronic device obtains the power receiving parameter information through communication between the second power control chip and the first power control chip; In the case that the electronic device does not have the second power control chip, the electronic device obtains the power receiving parameter information from the first control chip through the second control chip.

5. The electronic device according to claim 4, wherein the external device comprises a first control chip and a first power control chip respectively connected to the first connector / interface; the first control chip and the first power control chip both store the power receiving parameter information; The electronic device comprises a configuration channel logic chip connected to the second interface / connector, and is used to obtain detection parameters of the second interface / connector, and determine the connection state between the electronic device and the external device based on the detection parameters; the second control chip can obtain the power receiving parameter information from the first control chip when the external device is connected to the electronic device; Alternatively, the electronic device includes a second power control chip connected to the second interface / connector, which is used to obtain detection parameters of the second interface / connector, determine the connection status between the electronic device and the external device based on the detection parameters, and when the external device establishes a connection with the electronic device, obtain the power receiving parameter information from the first power control chip.

6. The electronic device according to claim 4, wherein the output circuit comprises a switch circuit, the switch circuit has a plurality of power ports, and different power ports input different voltages and currents; Based on the power receiving parameter information, the second control chip controls the power port in the switch circuit that is adapted to the power receiving parameter to be connected to the second interface / connector, and controls other power ports to be disconnected from the second interface / connector.

7. The electronic device according to claim 6, wherein the second control chip is connected to the output circuit through an embedded controller; the second control chip controls the conduction state of each of the power ports and the second interface / connector through the embedded controller.

8. A power supply control method, include: The electronic device detects the connection status with the external device; When the electronic device is connected to the external device, the electronic device acquires the power receiving parameter information pre-stored by the external device; The electronic device supplies power to the external device according to the power receiving parameter information; Wherein, the external device has a first power control chip and a first control chip, and the first power control chip and the first control chip respectively store the power receiving parameter information; The electronic device acquires the power receiving parameter information pre-stored by the external device, including: The electronic device determines whether it has a second power control chip based on the self-test result; If yes, the electronic device obtains the power receiving parameter information from the first power control chip based on the communication between the second power control chip and the first power control chip; If not, the second control chip of the electronic device obtains the power receiving parameter information from the first control chip.

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