Multi-interface power supply circuit and electronic equipment

Abstract

The utility model discloses a multi-interface power supply circuit and electronic equipment, which are applied to the design field of charging interfaces of the electronic equipment. Wherein each charging interface in the multi-interface power supply circuit is connected with the input end of the corresponding semiconductor element; each input end of the power management chip is connected with the output end of the corresponding semiconductor element, the first output end of the power management chip is connected with a system, and the second output end of the power management chip is connected with the input end of the buck-boost control chip, so that the power management chip judges whether the charging interface is in a use state or not according to the state of the corresponding charging interface; and supplying power to the system according to the state of the charging interface. Therefore, any one of different types of charging interfaces can be used for supplying power to the system, more abundant interaction modes are achieved due to the fact that the number and the type of the charging interfaces are at least one, and meanwhile the situation that the length of a connected wire body is not enough in the using process is avoided due to the number; and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the design of charging interfaces for electronic devices, and in particular to a multi-interface power supply circuit and electronic device. Background Technology

[0002] With the development of artificial intelligence and the popularization of smart homes, monitors have become one of the important interfaces for intelligent interaction. Currently, most monitors on the market have a limited number and type of power supply interfaces, with power ports only located on one side of the monitor and a fixed charging cable sequence. Therefore, during installation and use, users often encounter situations where the cable length is insufficient, making it impossible to fully meet the current trend of intelligent monitors in terms of space.

[0003] In view of the above-mentioned technologies, finding a multi-interface power supply circuit is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a multi-interface power supply circuit and electronic device, which can solve the problem of insufficient cable length during installation and use caused by the limited number and type of power supply interfaces in existing display products, which are only distributed on one side of the display, and also solve the problem of insufficient space to further meet the current trend of intelligent displays.

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-interface power supply circuit, including: at least one type of charging interface, at least one semiconductor element and a power management chip, wherein the number of charging interfaces is at least one, and the number of semiconductor elements is the same as the number of charging interfaces;

[0006] Each charging interface is connected to the input terminal of the corresponding semiconductor element.

[0007] Each input terminal of the power management chip is connected to the output terminal of the corresponding semiconductor element. The first output terminal of the power management chip is connected to the system, and the second output terminal of the power management chip is connected to the input terminal of the buck-boost control chip. This allows the power management chip to determine whether it is in use based on the status of the corresponding charging interface, and to supply power to the system based on the status of the charging interface.

[0008] Preferably, the charging interface is a TYPE-C charging port and a DC charging port, and there are two TYPE-C charging ports, namely a first TYPE-C charging port and a second TYPE-C charging port; there are two DC charging ports, namely a first DC charging port and a second DC charging port.

[0009] Preferably, the semiconductor element is a diode, and the number of diodes is four, namely a first diode, a second diode, a third diode, and a fourth diode;

[0010] The input terminal of the first diode is connected to the first TYPE-C charging port, and the output terminal of the first diode is connected to the first input terminal of the power management chip.

[0011] The input terminal of the second diode is connected to the second TYPE-C charging port, and the output terminal of the second diode is connected to the second input terminal of the power management chip.

[0012] The input terminal of the third diode is connected to the first DC charging port, and the output terminal of the third diode is connected to the third input terminal of the power management chip.

[0013] The input terminal of the fourth diode is connected to the second DC charging port, and the output terminal of the fourth diode is connected to the fourth input terminal of the power management chip.

[0014] Preferably, it also includes: a charging protocol chip;

[0015] The first input terminal of the charging protocol chip is connected to the output terminal of the first diode; the second input terminal of the charging protocol chip is connected to the output terminal of the second diode.

[0016] The first output terminal of the charging protocol chip is connected to the first input terminal of the power management chip; the second output terminal of the charging protocol chip is connected to the second input terminal of the power management chip.

[0017] Preferably, the power management chip includes: a detection circuit;

[0018] The input terminal of the detection circuit is connected to the output terminal of each diode as the input terminal of the power management chip.

[0019] The first output terminal of the detection circuit is connected to the system as the first output terminal of the power management chip, and the second output terminal of the detection circuit is connected to the input terminal of the buck-boost control chip as the second output terminal of the power management chip.

[0020] Preferably, the power management chip further includes a first charging circuit and a second charging circuit;

[0021] The input terminal of the first charging circuit is connected to the first input terminal of the power management chip and the second input terminal of the power management chip, which are connected to the output terminals of the corresponding first and second diodes; the output terminal of the first charging circuit is connected to the input terminal of the detection circuit.

[0022] The input terminal of the second charging circuit is connected to the third and fourth input terminals of the power management chip, and is also connected to the output terminals of the corresponding third and fourth diodes; the output terminal of the second charging circuit is connected to the input terminal of the detection circuit.

[0023] On the other hand, this application provides an electronic device including the aforementioned multi-interface power supply circuit.

[0024] Preferably, it further includes a display, wherein the multi-interface power supply circuit is disposed on both sides of the display.

[0025] Preferably, when the charging interface is a TYPE-C charging port and a DC charging port, and there are two TYPE-C charging ports, namely a first TYPE-C charging port and a second TYPE-C charging port; and there are two DC charging ports, namely a first DC charging port and a second DC charging port, the first TYPE-C charging port and the first DC charging port are located on the left side of the display, and the second TYPE-C charging port and the second DC charging port are located on the right side of the display.

[0026] Preferably, the first TYPE-C charging port and the first DC charging port on the left side of the display are symmetrically arranged with the second TYPE-C charging port and the second DC charging port on the right side of the display.

[0027] This utility model provides a multi-interface power supply circuit, comprising: at least one type of charging interface, at least one semiconductor element, and a power management chip. The number of charging interfaces is at least one, and the number of semiconductor elements is the same as the number of charging interfaces. Each charging interface is connected to the input terminal of its corresponding semiconductor element. Each input terminal of the power management chip is connected to the output terminal of its corresponding semiconductor element. The first output terminal of the power management chip is connected to the system, and the second output terminal is connected to the input terminal of a buck-boost control chip. This allows the power management chip to determine whether the charging interface is in use based on its status and to supply power to the system accordingly. Therefore, this application can use any type of charging interface to power the system. Furthermore, the presence of at least one type of charging interface provides richer interaction methods, and the limited number of interfaces avoids insufficient cable length during use, thus improving the user experience. Attached Figure Description

[0028] To more clearly illustrate the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A structural diagram of a multi-interface power supply circuit provided in an embodiment of this application;

[0030] Figure 2A detailed structural diagram of the multi-interface power supply circuit provided in the embodiments of this application;

[0031] Figure 3 A schematic diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The core of this utility model is to provide a multi-interface power supply circuit and electronic device.

[0034] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 This application provides a structural diagram of a multi-interface power supply circuit, including: at least one type of charging interface T, at least one semiconductor element D, and a power management chip 1. In addition, it includes a system 2 and a buck-boost control chip 3. The number of charging interfaces is at least one, and the number of semiconductor elements is the same as the number of charging interfaces. The connection method is as follows: each charging interface T is connected to the input terminal of the corresponding semiconductor element D; each input terminal of the power management chip 1 is connected to the output terminal of the corresponding semiconductor element D; the first output terminal of the power management chip 1 is connected to the system 2; and the second output terminal of the power management chip 1 is connected to the input terminal of the buck-boost control chip 3. This allows the power management chip 1 to determine whether it is in use based on the state of the corresponding charging interface T, and to supply power to the system 2 according to the state of the charging interface T.

[0036] In a specific embodiment, the principle of its multi-interface power supply circuit is as follows: When the charging interface T is connected to the corresponding socket, the power supply is isolated by the semiconductor element D to prevent reverse leakage of the power management chip 1. The current flows through the charging interface T and then to the power management chip 1. The power management chip 1 first determines which charging interface T is charging, and then determines whether the current charging voltage is within the operating voltage range. If the charging voltage is greater than the operating voltage, it enters overvoltage protection; otherwise, if the charging voltage is less than the operating voltage, it enters undervoltage protection. At this time, the power management chip 1 cannot supply power to the system 2. When the current charging voltage is within the operating voltage range, the power management chip 1 supplies power to the system 2 normally. When the charging voltage is within the operating voltage range, the power management chip 1 also sends the charging voltage to the buck-boost control chip 3 so that the buck-boost control chip 3 can adjust the charging voltage to meet the different needs of the connected load.

[0037] This utility model provides a multi-interface power supply circuit, comprising: at least one type of charging interface, at least one semiconductor element, and a power management chip. The number of charging interfaces is at least one, and the number of semiconductor elements is the same as the number of charging interfaces. Each charging interface is connected to the input terminal of its corresponding semiconductor element. Each input terminal of the power management chip is connected to the output terminal of its corresponding semiconductor element. The first output terminal of the power management chip is connected to the system, and the second output terminal is connected to the input terminal of a buck-boost control chip. This allows the power management chip to determine whether the charging interface is in use based on its status and to supply power to the system accordingly. Therefore, this application can use any type of charging interface to power the system. Furthermore, the presence of at least one type of charging interface provides richer interaction methods, and the limited number of interfaces avoids insufficient cable length during use, thus improving the user experience.

[0038] Based on the above embodiments, as a preferred embodiment, such as... Figure 2 As shown, the charging interface T has two types: a TYPE-C charging port and a DC charging port. There are two TYPE-C charging ports: the first TYPE-C charging port (TYPE-C1) and the second TYPE-C charging port (TYPE-C2). There are also two DC charging ports: the first DC charging port (DC IN1) and the second DC charging port (DC IN 2).

[0039] Accordingly, when semiconductor element D is a diode, and there are four diodes, namely diode D1, diode D2, diode D3, and diode D4, their specific connections are as follows: the input terminal of diode D1 is connected to the first TYPE-C charging port TYPE-C1, and the output terminal of diode D1 is connected to the first input terminal of power management chip 1; the input terminal of diode D2 is connected to the second TYPE-C charging port TYPE-C2, and the output terminal of diode D2 is connected to the second input terminal of power management chip 1; the input terminal of diode D3 is connected to the first DC charging port DC IN 1, and the output terminal of diode D3 is connected to the third input terminal of power management chip 1; the input terminal of diode D4 is connected to the second DC charging port DC IN 2, and the output terminal of diode D4 is connected to the fourth input terminal of power management chip 1.

[0040] In specific embodiments, since TYPE-C charging ports and DC charging ports are common charging interfaces, and both TYPE-C and DC charging ports have positive and negative insertion characteristics, users do not need to consider the orientation of the insertion during use. Furthermore, two TYPE-C charging ports or two DC charging ports can be blindly inserted into each other to power the display. Additionally, diodes are the most common reverse isolation devices. Therefore, in the current embodiments of this application, the charging interface T is limited to TYPE-C charging ports and DC charging ports, and the semiconductor element D is a diode. The charging methods using TYPE-C and DC charging ports differ: when using a TYPE-C charging port, the operating voltage undergoes a change, so a charging protocol chip 4 needs to be added to the circuit connected to the TYPE-C charging port to increase the initial 5V voltage to 20V. In contrast, the DC charging port voltage starts directly from 20V without any voltage change.

[0041] In a specific embodiment, the power management chip 1 includes a detection circuit, a first charging circuit, and a second charging circuit. Their connections are as follows: the input terminal of the first charging circuit is connected to the first input terminal of the power management chip, and the second input terminal of the power management chip is connected to the output terminals of the corresponding first and second diodes; the output terminal of the first charging circuit is connected to the input terminal of the detection circuit; the input terminal of the second charging circuit is connected to the third input terminal of the power management chip, and the fourth input terminal of the power management chip is connected to the output terminals of the corresponding third and fourth diodes; the output terminal of the second charging circuit is connected to the input terminal of the detection circuit; the first output terminal of the detection circuit is connected to the system as the first output terminal of the power management chip, and the second output terminal of the detection circuit is connected to the input terminal of the buck-boost control chip as the second output terminal of the power management chip. The detection circuit in the power management chip 1 determines which charging interface T is being used for charging, and then determines whether the current charging voltage is within the operating voltage range. If the charging voltage is greater than the operating voltage, overvoltage protection is activated; otherwise, if the charging voltage is less than the operating voltage, undervoltage protection is activated. The first charging circuit corresponds to the TYPE-C charging port, which performs filtering and other operations on the signals flowing through it; while the second charging circuit corresponds to the DC charging port, which also performs filtering and other operations on the signals flowing through it.

[0042] It should be noted that this application does not limit the specific structure of the detection circuit, the first charging circuit, and the second charging circuit, and users can set them according to their own needs.

[0043] It should also be noted that the embodiments provided in this application are only one possible implementation method, but are not limited to this implementation method. Users can set their own implementation methods according to their needs.

[0044] Therefore, this application can use any of the different types of charging interfaces to power the system. Furthermore, due to the number and variety of charging interfaces, this application offers a wider range of interaction methods. At the same time, the limited number of interfaces avoids the problem of insufficient cable length during use, thus improving the user experience.

[0045] On the other hand, this application also provides an electronic device, including the aforementioned multi-interface power supply circuit.

[0046] Among them, such as Figure 3As shown, the electronic device specifically includes a display, and the multi-interface power supply circuit is located on both sides of the display. Specifically, when the charging interfaces are a Type-C charging port and a DC charging port, and there are two Type-C charging ports (Type-C1 and Type-C2), and two DC charging ports (DC IN1 and DC IN2), the Type-C and DC charging ports are located on the left side of the display, and the Type-C and DC charging ports are located on the right side of the display, forming a symmetrical structure.

[0047] In a specific embodiment, a TYPE charging port and a DC charging port are respectively distributed on the left and right sides of the display. Users can choose one power port to power the display based on the specific usage scenario and the charging device. This design avoids the problem of the charging port being fixed due to usage scenarios, where the charging port can only be connected to one end of the display, and the charging device and interface are incompatible. Therefore, in summary, this application can use any of the different types of charging interfaces to power the system. Furthermore, because this application has at least one type of charging interface, it offers richer interaction methods. At the same time, the quantity and distribution of these interfaces avoid the situation where the connection cable length is insufficient during use, thus improving the user experience.

[0048] The foregoing has provided a detailed description of a multi-interface power supply circuit and electronic device provided by this utility model. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0049] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A multi-interface power supply circuit, characterized in that, include: The device includes at least one type of charging interface, at least one semiconductor element, and a power management chip, wherein the number of the charging interface is at least one, and the number of the semiconductor element is the same as the number of the charging interface; Each of the charging interfaces is connected to the input terminal of the corresponding semiconductor element; Each input terminal of the power management chip is connected to the output terminal of the corresponding semiconductor element. The first output terminal of the power management chip is connected to the system, and the second output terminal of the power management chip is connected to the input terminal of the buck-boost control chip, so that the power management chip can determine whether it is in use according to the status of the corresponding charging interface, and supply power to the system according to the status of the charging interface.

2. The multi-interface power supply circuit according to claim 1, characterized in that, The charging interfaces are of two types: a Type-C charging port and a DC charging port. There are two Type-C charging ports: a first Type-C charging port and a second Type-C charging port. There are also two DC charging ports: a first DC charging port and a second DC charging port.

3. The multi-interface power supply circuit according to claim 2, characterized in that, The semiconductor element is a diode, and there are four diodes: a first diode, a second diode, a third diode, and a fourth diode. The input terminal of the first diode is connected to the first TYPE-C charging port, and the output terminal of the first diode is connected to the first input terminal of the power management chip. The input terminal of the second diode is connected to the second TYPE-C charging port, and the output terminal of the second diode is connected to the second input terminal of the power management chip. The input terminal of the third diode is connected to the first DC charging port, and the output terminal of the third diode is connected to the third input terminal of the power management chip. The input terminal of the fourth diode is connected to the second DC charging port, and the output terminal of the fourth diode is connected to the fourth input terminal of the power management chip.

4. The multi-interface power supply circuit according to claim 3, characterized in that, Also includes: Charging protocol chip; The first input terminal of the charging protocol chip is connected to the output terminal of the first diode; the second input terminal of the charging protocol chip is connected to the output terminal of the second diode. The first output terminal of the charging protocol chip is connected to the first input terminal of the power management chip; the second output terminal of the charging protocol chip is connected to the second input terminal of the power management chip.

5. The multi-interface power supply circuit according to claim 3, characterized in that, The power management chip includes: a detection circuit; The input terminal of the detection circuit is connected to the output terminal of each diode as the input terminal of the power management chip. The first output terminal of the detection circuit is connected to the system as the first output terminal of the power management chip, and the second output terminal of the detection circuit is connected to the input terminal of the buck-boost control chip as the second output terminal of the power management chip.

6. The multi-interface power supply circuit according to claim 5, characterized in that, The power management chip also includes a first charging circuit and a second charging circuit. The input terminal of the first charging circuit is connected to the first input terminal of the power management chip and the second input terminal of the power management chip, which are respectively connected to the output terminals of the first diode and the second diode; the output terminal of the first charging circuit is connected to the input terminal of the detection circuit. The input terminal of the second charging circuit serves as the third and fourth input terminals of the power management chip, and is connected to the output terminals of the corresponding third and fourth diodes; the output terminal of the second charging circuit is connected to the input terminal of the detection circuit.

7. An electronic device, characterized in that, Includes the multi-interface power supply circuit as described in claim 1.

8. The electronic device according to claim 7, characterized in that, Also includes: The display, wherein the multi-interface power supply circuit is disposed on both sides of the display.

9. The electronic device according to claim 8, characterized in that, When the charging interface is a TYPE-C charging port and a DC charging port, and there are two TYPE-C charging ports (a first TYPE-C charging port and a second TYPE-C charging port) and two DC charging ports (a first DC charging port and a second DC charging port), the first TYPE-C charging port and the first DC charging port are located on the left side of the display, and the second TYPE-C charging port and the second DC charging port are located on the right side of the display.

10. The electronic device according to claim 9, characterized in that, The first TYPE-C charging port and the first DC charging port on the left side of the display are symmetrically arranged with the second TYPE-C charging port and the second DC charging port on the right side of the display.

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