Mainboard compatible with various connectors

Abstract

The utility model provides a mainboard compatible with various connectors. The mainboard comprises a first connector, a second connector, a mainboard main body and a power supply grounding separation circuit, the first connector and the second connector are pasted on the mainboard main body; one end of the power grounding separation circuit is connected with the power supply, the other end is connected with the mainboard body, the power grounding separation circuit is provided with a separation point of the power supply and a grounding end, and the separation point is tinned with the power supply to supply power to the mainboard body through a path; therefore, the same mainboard main body can be provided with various interfaces with different functions according to the bill of material, so that the product specification can be met, and the development process is shortened.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of motherboard circuits, and in particular to a motherboard compatible with multiple connectors. Background Art

[0002] Laptop motherboards typically require multiple interfaces for different functional connections, such as DC charging via a DC / IN port and data transmission via a USB Type-C port. Due to varying customer needs and functionalities, it's often necessary to develop and design two PCBA motherboard products to meet these requirements: one with a DC / IN port and the other with a USB Type-C port. This increases production costs and increases product development time and effort. Utility Model Content

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The purpose of this application is to solve one of the technical problems existing in the related art to at least a certain extent. The embodiment of this application provides a motherboard compatible with multiple connectors, so that the same motherboard can be compatible with multiple interfaces with different functions.

[0005] An embodiment of the present application provides a motherboard compatible with multiple connectors, including:

[0006] a first connector;

[0007] a second connector, the first connector and the second connector being of a different type;

[0008] A main body of the motherboard, wherein the first connector and the second connector are mounted on the main body of the motherboard;

[0009] A power ground separation circuit, one end of which is connected to the power supply, and the other end is connected to the main body of the motherboard. The power ground separation circuit is provided with a separation point between the power supply and the ground end, and the separation point is tinned to connect the power supply to the main body of the motherboard through a path.

[0010] According to an embodiment of the present application, the first connector is a DC power input connector.

[0011] According to an embodiment of the present application, the second connector is a USB connector.

[0012] According to an embodiment of the present application, the main board body is a PCB main board.

[0013] According to an embodiment of the present application, a motherboard compatible with multiple connectors also includes a voltage divider circuit, which includes a first resistor and a second resistor, one end of the first resistor is connected to the input voltage end, the other end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is grounded, and one end of the second resistor is the output voltage end.

[0014] According to an embodiment of the present application, the output voltage end is connected to the first MOS tube, the first MOS tube is connected to the second MOS tube, the first MOS tube is connected to the third MOS tube, the second MOS tube is connected to the third MOS tube, the second MOS tube is connected to the input voltage end, and the third MOS tube is connected to the main board body.

[0015] According to an embodiment of the present application, the drain of the first MOS transistor is connected to the gate of the second MOS transistor, and the drain of the first MOS transistor is connected to the gate of the third MOS transistor.

[0016] According to an embodiment of the present application, a first resistor is connected between the source of the second MOS tube and the gate of the second MOS tube, a first capacitor is connected between the source of the third MOS tube and the gate of the third MOS tube, and the gate of the second MOS tube is connected to the gate of the third MOS tube.

[0017] According to an embodiment of the present application, the second connector is connected to the charging circuit.

[0018] According to an embodiment of the present application, the charging circuit includes a second capacitor, a third capacitor, a fourth capacitor and a diode; one end of the second capacitor, one end of the third capacitor and one end of the fourth capacitor are connected to the cathode of the diode, and the other end of the second capacitor, the other end of the third capacitor, the other end of the fourth capacitor and the positive electrode of the diode are grounded; the negative electrode of the diode is connected to the second connector.

[0019] The above scheme has at least the following beneficial effects: it provides a motherboard compatible with multiple connectors, including: a first connector, a second connector, a motherboard main body and a power ground separation circuit; the first connector and the second connector are patched on the motherboard main body; one end of the power ground separation circuit is connected to the power supply, and the other end is connected to the motherboard main body, and the power ground separation circuit is provided with a separation point between the power supply and the ground end, and the power supply is tinned on the separation point to supply power to the motherboard main body through a path; so that the same motherboard main body can meet product specifications by patching multiple interfaces with different functions according to the bill of materials, shortening the development process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0021] Figure 1 This is a circuit diagram of the main board provided in an embodiment of the present application;

[0022] Figure 2 is a circuit diagram of a first connector and a second connector provided in an embodiment of the present application;

[0023] Figure 3 is a circuit diagram of the power supply part provided in an embodiment of the present application;

[0024] Figure 4 is a circuit diagram of a power supply ground separation circuit provided in an embodiment of the present application;

[0025] Figure 5 is a circuit diagram of a voltage divider circuit provided in an embodiment of the present application;

[0026] Figure 6 is a circuit diagram of a charging circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and the like in the specification, claims, or accompanying drawings are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0029] An embodiment of the present application proposes a motherboard compatible with multiple connectors, which can enable a single motherboard to be compatible with multiple connector products of different types and functions to meet the requirements of different product specifications.

[0030] The embodiments of the present application are further described below with reference to the accompanying drawings.

[0031] An embodiment of the present application provides a mainboard compatible with multiple connectors.

[0032] A motherboard compatible with multiple connectors includes: a first connector, a second connector, a motherboard body, and a power ground separation circuit.

[0033] The first connector and the second connector are mounted on the main body of the motherboard; one end of the power ground separation circuit is connected to the power supply, and the other end is connected to the main body of the motherboard. The power ground separation circuit is provided with a separation point between the power supply and the ground end, and the power supply is tinned on the separation point to supply power to the main body of the motherboard through a path.

[0034] The first connector and the second connector are of different types. For example, the first connector is a DC power input connector, that is, the first connector is a DC / IN interface. The second connector is a USB connector, specifically, a USBTYPEC interface. The circuit diagram of the first connector and the second connector is shown in FIG. Figure 2 shown.

[0035] There is no need to redesign the motherboard. The same motherboard can meet product specifications by patching two different functional interfaces according to the Bill of Materials (BOM), shortening the development process.

[0036] For example, the main board is a PCB main board. Figure 1 shown.

[0037] When selecting the DC / IN interface, the PCB motherboard needs to be segmented to prevent the risk of short circuit between the power supply and ground terminals.

[0038] When choosing USB TYPE C interface, it is necessary to connect the power supply path to the main board at the separation point. Figure 4 PMR3 / SH14 is the separation point for power supply and ground.

[0039] Reference Figure 5 The motherboard compatible with multiple connectors also includes a voltage divider circuit, which includes a first resistor and a second resistor. One end of the first resistor is connected to the input voltage end, the other end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is grounded, and one end of the second resistor is the output voltage end.

[0040] For example, the first resistor is resistor R6I9, the second resistor is resistor R6I11, the resistance of the first resistor is 100K, and the resistance of the second resistor is 10K. The input voltage is 20V, and the output voltage is 3.3V. It is understood that the resistance of the first resistor and the resistance of the second resistor can be set according to actual production requirements.

[0041] Power supply part such as Figure 3The output voltage terminal is connected to the first MOS transistor, the first MOS transistor is connected to the second MOS transistor, the first MOS transistor is connected to the third MOS transistor, the second MOS transistor is connected to the third MOS transistor, the second MOS transistor is connected to the input voltage terminal, and the third MOS transistor is connected to the main board.

[0042] The drain of the first MOS tube is connected to the gate of the second MOS tube, and the drain of the first MOS tube is connected to the gate of the third MOS tube.

[0043] A first resistor is connected between the source of the second MOS tube and the gate of the second MOS tube, a first capacitor is connected between the source of the third MOS tube and the gate of the third MOS tube, and the gate of the second MOS tube is connected to the gate of the third MOS tube.

[0044] The first MOS transistor is Q6I3, which is an NMOS transistor. The second MOS transistor is Q6I1, which is a PMOS transistor. The third MOS transistor is Q6I2, which is a PMOS transistor.

[0045] The first and second connectors receive a 20V input voltage through an adapter. This input voltage is divided by resistors R6I9 and R6I11 to generate a 3.3V voltage. This 3.3V voltage turns on the first MOS transistor. The first MOS transistor controls the second and third MOS transistors, allowing the 20V input voltage to be input to the system and power the motherboard.

[0046] For example, referring to Figure 6 The charging circuit includes a second capacitor, a third capacitor, a fourth capacitor and a diode; one end of the second capacitor, one end of the third capacitor and one end of the fourth capacitor are connected to the cathode of the diode, the other end of the second capacitor, the other end of the third capacitor, the other end of the fourth capacitor and the anode of the diode are grounded; the cathode of the diode is connected to the second connector.

[0047] The second capacitor is C6I8, the third capacitor is C6I9, and the fourth capacitor is C6I10.

[0048] This charging circuit can realize the fast charging function of the motherboard.

[0049] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A motherboard compatible with multiple connectors, characterized in that: include: a first connector; a second connector, the first connector and the second connector being of a different type; A main body of the motherboard, wherein the first connector and the second connector are mounted on the main body of the motherboard; A power ground separation circuit, one end of which is connected to the power supply, and the other end is connected to the main body of the motherboard. The power ground separation circuit is provided with a separation point between the power supply and the ground end, and the separation point is tinned to connect the power supply to the main body of the motherboard through a path.

2. The motherboard compatible with multiple connectors according to claim 1, characterized in that: The first connector is a DC power input connector.

3. The motherboard compatible with multiple connectors according to claim 1, characterized in that: The second connector is a USB connector.

4. The motherboard compatible with multiple connectors according to claim 1, characterized in that: The main board body is a PCB main board.

5. The motherboard compatible with multiple connectors according to claim 1, characterized in that: It also includes a voltage divider circuit, which includes a first resistor and a second resistor, one end of the first resistor is connected to the input voltage end, the other end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is grounded, and one end of the second resistor is the output voltage end.

6. The motherboard compatible with multiple connectors according to claim 5, characterized in that: The output voltage end is connected to the first MOS transistor, the first MOS transistor is connected to the second MOS transistor, the first MOS transistor is connected to the third MOS transistor, the second MOS transistor is connected to the third MOS transistor, the second MOS transistor is connected to the input voltage end, and the third MOS transistor is connected to the main board body.

7. The motherboard compatible with multiple connectors according to claim 6, characterized in that: The drain of the first MOS transistor is connected to the gate of the second MOS transistor, and the drain of the first MOS transistor is connected to the gate of the third MOS transistor.

8. The motherboard compatible with multiple connectors according to claim 6, characterized in that: A first resistor is connected between the source of the second MOS transistor and the gate of the second MOS transistor, a first capacitor is connected between the source of the third MOS transistor and the gate of the third MOS transistor, and the gate of the second MOS transistor is connected to the gate of the third MOS transistor.

9. The motherboard compatible with multiple connectors according to claim 1, characterized in that: The second connector is connected to the charging circuit.

10. The motherboard compatible with multiple connectors according to claim 9, characterized in that: The charging circuit includes a second capacitor, a third capacitor, a fourth capacitor, and a diode; one end of the second capacitor, one end of the third capacitor, and one end of the fourth capacitor are connected to the cathode of the diode, and the other end of the second capacitor, the other end of the third capacitor, the other end of the fourth capacitor, and the anode of the diode are grounded; the cathode of the diode is connected to the second connector.

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