Multi-interface expansion circuit

Abstract

The utility model discloses a multi-interface expansion circuit, which is characterized in that an MXM3 connector is respectively connected with a USB interface expansion module, a power supply module, an SATA interface expansion module, an HMDI interface expansion module, an SSD interface expansion module, an MIPI display screen and a 40PIN pin header connector; the power supply module comprises a power supply controller, a power supply battery, a DC-DC converter, a first mode converter, a second mode converter, a step-down conversion unit and a TYPEC interface; the power supply controller is respectively connected with the MXM3 connector, the power supply battery, the DC-DC converter, the first mode converter, the second mode converter and the TYPEC interface, the TYPEC interface is connected with the MXM3 connector, and the second mode converter is connected with the step-down conversion unit. In the scheme of the utility model, low-cost integration of a plurality of interfaces is realized, and the technical problems of high cost and complex conversion of integration of a plurality of interfaces are solved.

Description

Technical Field

[0001] This utility model relates to the field of interface hubs, and in particular to a multi-interface expansion circuit. Background Technology

[0002] In the current computer field, interface circuit boards can provide USB 3.1 Gen 1 port expansion, support downstream battery charging, integrate battery charger detection circuits, and realize expansion needs such as HMDI interface.

[0003] In the computer industry, expanding connectivity requires various hardware and software techniques to increase the number of computer interfaces, improve data transmission capabilities, enhance functionality, or improve user experience. Because computers need to integrate numerous interfaces, such as SATA, SSD, HDMI, USB, and Type-C, and connecting these various interfaces requires numerous converters, the manufacturing cost of circuit boards is high in order to meet the diverse interface requirements. Therefore, a new interface integration solution is needed to address the issues of high cost and complex conversion associated with integrating multiple interfaces. Utility Model Content

[0004] The main objective of this invention is to address the technical problem of high cost and complex conversion associated with integrating multiple interfaces.

[0005] To achieve the above objectives, this utility model proposes a multi-interface expansion circuit, which includes:

[0006] MXM3 connector, USB interface expansion module, power supply module, SATA interface expansion module, HDMI interface expansion module, SSD interface expansion module, MIPI display, 40PIN header connector;

[0007] The MXM3 connector is connected to the USB interface expansion module, the power supply module, the SATA interface expansion module, the HDMI interface expansion module, the SSD interface expansion module, the MIPI display screen, and the 40PIN header connector, respectively.

[0008] The power supply module includes: a power supply controller, a power supply battery, a DC-DC converter, a first-mode converter, a second-mode converter, a buck converter, and a TYPEC interface;

[0009] The power supply controller is connected to the MXM3 connector, the power supply battery, the DC-DC converter, the first mode converter, the second mode converter, and the TYPEC interface. The TYPEC interface is connected to the MXM3 connector, and the second mode converter is connected to the buck converter unit.

[0010] Optionally, in the first implementation, the step-down conversion unit includes: a first circuit breaker, a second circuit breaker, a third circuit breaker, and a step-down conversion device; the first circuit breaker, the second circuit breaker, and the step-down conversion device are respectively connected to the second mode converter, and the third circuit breaker is connected in series with the step-down conversion device.

[0011] Optionally, in the second implementation, the step-down converter includes one or more of the following chips: RT5795AGQW chip, ETA3409 chip, TMI3112H chip, SY8113B chip, and TPS82085SILR chip.

[0012] Alternatively, in a third implementation, the first mode converter, the second mode converter, and the DC-DC converter are respectively connected to the MXM3 connector.

[0013] Alternatively, in the fourth implementation, the power supply controller includes a BQ25703 chip.

[0014] Optionally, in the fifth implementation, the first mode converter includes an MP8759 chip, the second mode converter includes an MP8759 chip, and the DC-DC converter includes a SY8113B chip.

[0015] Optionally, in the sixth implementation, the SATA interface expansion module includes: a JMB575 chip and multiple SATA interfaces, wherein the JMB575 chip is connected to the MXM3 connector and the multiple SATA interfaces respectively.

[0016] Optionally, in the seventh implementation, the USB interface expansion module includes: a USB5807C hub, a SIM card IC carrier board, a 24-pin header connector, and multiple USB interfaces, wherein the USB5807C hub is connected to the SIM card IC carrier board, the 4-pin header connector, the multiple USB interfaces, and the MXM3 connector.

[0017] Optionally, in the eighth implementation, the multi-interface expansion circuit further includes a headphone jack module connected to the MXM3 connector.

[0018] Optionally, in the ninth implementation, the headphone interface module further includes: a headphone socket and an ES8388 chip, wherein the ES8388 chip is connected to the MXM3 connector and the headphone socket respectively.

[0019] In this embodiment of the invention, a multi-interface expansion circuit is proposed. A USB interface expansion module, a SATA interface expansion module, an HDMI interface expansion module, an SSD interface expansion module, a MIPI display screen, and a 40-pin header connector are connected via an MXM3 connector. A power supply module is used to power the entire circuit. The power supply module is equipped with a Type-C interface, which is connected to the MXM3 connector. This achieves low-cost integration of multiple interfaces and solves the technical problems of high cost and complex conversion of multiple interface integration. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the multi-interface expansion circuit of this utility model;

[0022] Figure 2 This is a schematic diagram of a specific embodiment of the multi-interface expansion circuit of this utility model;

[0023] Figure 3 This is a schematic diagram of a specific embodiment of the power supply module of this utility model;

[0024] Figure 4 This is a schematic diagram of the pin connections of the JMB575 chip of this utility model;

[0025] Figure 5 This is a schematic diagram of the pin connections of the 4PIN header connector of this utility model;

[0026] Figure 6 This is a schematic diagram of the pin connections of the ES8388 chip of this utility model;

[0027] Figure 7 This is a schematic diagram of the pin connections of the BQ25703 chip of this utility model.

[0028] Explanation of icon numbers:

[0029] 10-MXM3 connector, 20-USB interface expansion module, 30-power supply module, 40-SATA interface expansion module, 50-HDMI interface expansion module, 60-SSD interface expansion module, 70-MIPI display, 80-40PIN header connector;

[0030] 301-Power supply controller, 302-Power supply battery, 303-DC-DC converter, 304-First mode converter, 305-Second mode converter, 306-Buck converter unit, 307-TYPEC interface;

[0031] 3061 - First circuit breaker, 3062 - Second circuit breaker, 3063 - Third circuit breaker, 3064 - Step-down converter.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] 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.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] This invention proposes a multi-interface expansion circuit.

[0037] In the embodiments of this utility model, such as Figure 1 As shown, Figure 1This is the first structural diagram of the multi-interface expansion circuit of this utility model. The multi-interface expansion circuit includes: MXM3 connector 10, USB interface expansion module 20, power supply module 30, SATA interface expansion module 40, HMDI interface expansion module 50, SSD interface expansion module 60, MIPI display screen 70, and 40PIN header connector 80.

[0038] The MXM3 connector is a modular interface standard designed for laptops and other portable devices. MXM3.1 Type A products meet the 82*50mm or 82*80mm size, while the MXM 3.0 connector has a pin pitch of 0.50mm and 314 contacts, supports 16-channel PCI Express signal performance, and is suitable for a variety of high-speed peripheral applications.

[0039] The MXM3 connector 10 connects to the USB interface expansion module 20, power supply module 30, SATA interface expansion module 40, HDMI interface expansion module 50, SSD interface expansion module 60, MIPI display 70, and a 40-pin header connector 80. The 40-pin header connector is a commonly used connector component in the electronics industry, widely used for data and signal transmission between circuit boards and devices. Multiple interfaces are integrated on the MXM3 connector 10, utilizing the number of contacts and support for multi-channel connection of multiple interfaces, and enabling conversion between multiple interfaces.

[0040] The power supply module 30 includes: a power supply controller 301, a power supply battery 302, a DC-DC converter 303, a first mode converter 304, a second mode converter 305, a step-down converter unit 306, and a TYPEC interface 307;

[0041] The power supply controller 301 is connected to the MXM3 connector 10, the power supply battery 302, the DC-DC converter 303, the first mode converter 304, the second mode converter 305, and the TYPEC interface 307. The TYPEC interface 307 is connected to the MXM3 connector 10, and the second mode converter 305 is connected to the step-down conversion unit 306.

[0042] The working principle of this utility model is as follows: The power supply battery transmits power to the MXM3 connector through the power supply controller to supply power to multiple interfaces such as USB interface expansion module, SATA interface expansion module, HDMI interface expansion module, SSD interface expansion module, MIPI display, and 40PIN header connector. Since different interfaces have different voltage requirements, the power supply controller can have a DC-DC converter, a first-mode converter, a second-mode converter, and a step-down conversion unit to convert the voltage of the power supply battery. Furthermore, the TYPEC interface is integrated into the power supply module and connects to the MXM3 connector, which not only supplies power to the power supply battery but also allows the TYPEC interface to be integrated into the MXM3 connector for signal transmission with other interfaces.

[0043] In the specific embodiments of this utility model, there are multiple specific implementation methods.

[0044] First specific embodiment

[0045] like Figure 2 As shown, Figure 2 A schematic diagram of a specific embodiment of the multi-interface expansion circuit of this utility model is shown. The MXM3 connector 10 houses a SMARC 2.1 module, which connects to an M.2 SSD interface expansion module 60 via PCIe. The MXM3 connector 10 also connects to an external Wi-Fi module. The SATA interface expansion module 40 includes a JMB575 chip and five SATA interfaces. One end of the JMB575 chip is connected to the MXM3 connector 10, and the other end of the JMB575 chip is connected to the five SATA interfaces. Please refer to [link / reference]. Figure 4 , Figure 4 This is a schematic diagram of the pin connections of the JMB575 chip of this utility model.

[0046] The USB interface expansion module 20 includes: a USB 5807C hub, a SIM card IC carrier board M.2B-KEY 4 / 5G, a 24-pin header connector J7, and two USB ports. The USB 5807C hub is connected to the SIM card IC carrier board M.2B-KEY 4 / 5G, the 4-pin header connector J7, the two USB ports (USB 3.0 * 2), and the MXM3 connector 10. Please refer to [link / reference]. Figure 5 , Figure 5 This is a schematic diagram of the pin connections of the 4PIN header connector of this utility model.

[0047] The USB5807C is a 7-port USB 3.1 Gen 1 hub controller manufactured by Microchip Technology. The USB5807C supports downstream battery charging and features integrated battery charger detection circuitry supporting the USB-IF BatteryCharging (BC1.2) detection method and most Apple devices. It provides a battery charging handshake and supports DCP, CDP, SDP, and custom profiles loaded via SMBus or OTP.

[0048] The multi-interface expansion circuit also includes: a headphone jack module. Figure 2 The module connected to 12S0+12C_GP is a headphone jack module, which connects to the MXM3 connector 10. The headphone jack module also includes a headphone socket and an ES8388 chip, with the ES8388 chip connected to both the MXM3 connector 10 and the headphone socket. Please refer to [link / reference]. Figure 6 , Figure 6 This is a schematic diagram of the pin connections of the ES8388 chip of this utility model.

[0049] Second specific embodiment

[0050] like Figure 3 As shown, Figure 3 This is a schematic diagram of a specific embodiment of the power supply module of this utility model. The step-down conversion unit 306 includes: a first circuit breaker 3061, a second circuit breaker 3060, a third circuit breaker 3063, and a step-down conversion device 3064. The first circuit breaker 3061, the second circuit breaker 3062, and the step-down conversion device 3064 are respectively connected to the second mode converter 305, and the third circuit breaker 3063 is connected in series with the step-down conversion device 3064. The step-down conversion device 3064 is equipped with five parallel chips: RT5795AGQW chip, ETA3409 chip, TMI3112H chip, SY8113B chip, and TPS82085SILR chip. The power supply controller 301 includes a BQ25703 chip. Please refer to [link to relevant documentation]. Figure 7 , Figure 7 This is a schematic diagram of the pin connections of the BQ25703 chip of this utility model. The first mode converter 304 includes an MP8759 chip, the second mode converter 305 includes an MP8759 chip, and the DC-DC converter 303 includes a SY8113B chip.

[0051] Combination Figure 2 As shown, the first mode converter 304 (MP8759 chip), the second mode converter 305 (MP8759 chip), and the DC-DC converter 303 (SY8113B chip) are respectively connected to the MXM3 connector 10.

[0052] The beneficial effects of this utility model are as follows: This utility model proposes a circuit scheme for a multi-interface expansion circuit. It utilizes the multi-contact attribute of the MXM3 connector to connect interfaces such as USB interface expansion module, SATA interface expansion module, HDMI interface expansion module, SSD interface expansion module, MIPI display screen, and 40PIN header connector. It also utilizes multiple voltage converters in the power supply module to provide power to the multiple interfaces, thus solving the technical problems of high cost and complex conversion of multiple interface integration.

[0053] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-interface expansion circuit, characterized in that, The multi-interface expansion circuit includes: MXM3 connector, USB interface expansion module, power supply module, SATA interface expansion module, HDMI interface expansion module, SSD interface expansion module, MIPI display, 40PIN header connector; The MXM3 connector is connected to the USB interface expansion module, the power supply module, the SATA interface expansion module, the HDMI interface expansion module, the SSD interface expansion module, the MIPI display screen, and the 40PIN header connector, respectively. The power supply module includes: a power supply controller, a power supply battery, a DC-DC converter, a first-mode converter, a second-mode converter, a buck converter, and a TYPEC interface; The power supply controller is connected to the MXM3 connector, the power supply battery, the DC-DC converter, the first mode converter, the second mode converter, and the TYPEC interface. The TYPEC interface is connected to the MXM3 connector, and the second mode converter is connected to the buck converter unit.

2. The multi-interface expansion circuit according to claim 1, characterized in that, The step-down conversion unit includes: a first circuit breaker, a second circuit breaker, a third circuit breaker, and a step-down conversion device; the first circuit breaker, the second circuit breaker, and the step-down conversion device are respectively connected to the second mode converter, and the third circuit breaker is connected in series with the step-down conversion device.

3. The multi-interface expansion circuit according to claim 2, characterized in that, The step-down converter includes one or more of the following chips: RT5795AGQW chip, ETA3409 chip, TMI3112H chip, SY8113B chip, and TPS82085SILR chip.

4. The multi-interface expansion circuit according to claim 1, characterized in that, The first mode converter, the second mode converter, and the DC-DC converter are respectively connected to the MXM3 connector.

5. The multi-interface expansion circuit according to claim 1, characterized in that, The power supply controller includes a BQ25703 chip.

6. The multi-interface expansion circuit according to claim 1, characterized in that, The first mode converter includes an MP8759 chip, the second mode converter includes an MP8759 chip, and the DC-DC converter includes a SY8113B chip.

7. The multi-interface expansion circuit according to claim 1, characterized in that, The SATA interface expansion module includes a JMB575 chip and multiple SATA interfaces. The JMB575 chip is connected to the MXM3 connector and the multiple SATA interfaces respectively.

8. The multi-interface expansion circuit according to claim 1, characterized in that, The USB interface expansion module includes: a USB5807C hub, a SIM card IC carrier board, a 24-pin header connector, and multiple USB interfaces. The USB5807C hub is connected to the SIM card IC carrier board, the 4-pin header connector, the multiple USB interfaces, and the MXM3 connector.

9. The multi-interface expansion circuit according to claim 1, characterized in that, The multi-interface expansion circuit also includes a headphone jack module, which is connected to the MXM3 connector.

10. The multi-interface expansion circuit according to claim 9, characterized in that, The headphone interface module also includes: a headphone socket and an ES8388 chip, wherein the ES8388 chip is connected to the MXM3 connector and the headphone socket respectively.

Images