High-power USB data charging module for vehicles

Abstract

This invention provides a high-power USB data charging module for vehicles, comprising: a first DC-DC boost / buck circuit providing a first DC power supply to a first USB interface; a first charging protocol control circuit connected to the first DC-DC boost / buck circuit; a second DC-DC boost / buck circuit providing a second DC power supply to a second USB interface; a second charging protocol control circuit connected to both the second DC-DC boost / buck circuit and the first charging protocol control circuit; a first USB interface with its communication pins connected to the first charging protocol control circuit; a second USB interface with its communication pins connected to the second charging protocol control circuit; and a hub chip with its downlink port connected to the data pins of both the first and second USB interfaces, and its uplink port connected to an uplink connector. Compared with existing technologies, this invention solves problems such as slow charging speed, low output power, and incompatibility with data communication in vehicles.

Description

[Technical Field]

[0001] This invention relates to the field of vehicle charging technology, and in particular to a high-power USB data charging module for vehicles. [Background Technology]

[0002] Nowadays, people are highly dependent on electronic products such as mobile phones, tablets, and laptops. While these products bring great convenience, they also place higher demands on charging and communication. However, current in-vehicle charging modules on the market suffer from problems such as slow charging speed, low output power, and incompatibility with data communication.

[0003] Therefore, it is necessary to propose an improved technical solution to address the above problems. [Summary of the Invention]

[0004] One of the objectives of this invention is to provide a high-power USB data charging module for vehicles, which solves problems such as slow charging speed, low output power, and incompatibility with data communication.

[0005] According to one aspect of the present invention, a vehicle-mounted high-power USB data charging module is provided, comprising a first charging circuit, a second charging circuit, a hub chip, a first USB interface, and a second USB interface. The first charging circuit includes a first DC-DC boost / buck circuit and a first charging protocol control circuit. The first DC-DC boost / buck circuit is used to perform DC-DC conversion on the vehicle-mounted DC input power VBAT received at its input terminal Vin to obtain a first DC power supply VBUS1 provided to the first USB interface. The first charging protocol control circuit is connected to the first DC-DC boost / buck circuit and controls the first DC-DC boost / buck circuit to charge the device to be charged via the first USB interface based on a standard charging protocol. The second charging circuit includes a second DC-DC boost / buck circuit and a second charging protocol control circuit. The second DC-DC boost / buck circuit is used for... The vehicle DC input power VBAT received at its input terminal Vin is converted from DC to DC to obtain a second DC power supply VBUS2 provided to the second USB interface; the second charging protocol control circuit is connected to the second DC boost / buck circuit and the first charging protocol control circuit, and controls the second DC boost / buck circuit to charge the device to be charged through the second USB interface based on the standard charging protocol; the VBUS1 pin of the first USB interface is connected to the first DC power supply VBUS1 output by the first DC boost / buck circuit, and its communication pin CC is connected to the corresponding pin of the first charging protocol control circuit; the VBUS2 pin of the second USB interface is connected to the second DC power supply VBUS2 output by the second DC boost / buck circuit, and its communication pin CC is connected to the corresponding pin of the second charging protocol control circuit.

[0006] Compared with the prior art, the present invention can provide a large charging power to the device to be charged that supports the standard charging protocol when using a single port; when using a dual port, it can provide a large charging power to two devices to be charged that support the standard charging protocol at the same time, thereby solving the problems of slow charging speed, low output power and incompatibility with data communication in vehicles. [Attached Image Description]

[0007] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0008] Figure 1 This is a circuit diagram of a vehicle-mounted high-power USB data charging module according to one embodiment of the present invention;

[0009] Figure 2 For example, in one embodiment of the present invention Figure 1 The circuit diagram shown is of the input protection and filtering circuit.

[0010] Figure 3 This is a circuit diagram of the CCG3PA chip and its peripheral circuitry in one embodiment of the present invention.

[0011] Figure 4 This is a circuit diagram of the MPQ4262 chip and its peripheral circuitry in one embodiment of the present invention.

[0012] Figure 5 This is a circuit diagram of the USB4925 chip and its peripheral circuitry in one embodiment of the present invention;

[0013] Figure 6 For example, in one embodiment of the present invention Figure 1 The circuit diagram shown is of a DC step-down circuit.

Detailed Implementation Methods

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Unless otherwise specified, the terms coupling, connection, linking, and interconnection used herein to indicate electrical connection mean direct or indirect connection. For example, A being connected to B includes both a direct electrical connection between A and B and a connection between A and B via electrical components or circuits.

[0016] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] Please refer to Figure 1 As shown, it is a circuit diagram of a vehicle-mounted high-power USB data charging module in one embodiment of the present invention. Figure 1 The vehicle-mounted high-power USB data charging module shown includes a first charging circuit 110, a second charging circuit 120, a first USB interface 130, a second USB interface 140, a hub chip 150, and a DC step-down circuit 170.

[0018] The first charging circuit 110 includes a first DC-DC boost / buck circuit 112 and a first charging protocol control circuit 114. The first DC-DC boost / buck circuit 112 is used to perform DC-DC conversion on the vehicle DC input power VBAT received at its input terminal Vin to obtain a first DC power VBUS1 provided to the first USB interface 130. The first charging protocol control circuit 114 is connected to the first DC-DC boost / buck circuit 112 and controls the first DC-DC boost / buck circuit 112 to charge the device to be charged through the first USB interface 130 based on a standard charging protocol.

[0019] The second charging circuit 120 includes a second DC-DC boost / buck circuit 122 and a second charging protocol control circuit 124. The second DC-DC boost / buck circuit 122 is used to perform DC-DC conversion on the vehicle DC input power VBAT received at its input terminal Vin to obtain a second DC power VBUS2 provided to the second USB interface 140. The second charging protocol control circuit 124 is connected to the second DC-DC boost / buck circuit 122 and the first charging protocol control circuit 114. It controls the second DC-DC boost / buck circuit 122 to charge the device to be charged through the second USB interface 140 based on the standard charging protocol.

[0020] The VBUS1 pin of the first USB interface 130 is connected to the first DC power supply VBUS1 output by the first DC boost / buck circuit 112, and its communication pin CC is connected to the corresponding pin of the first charging protocol control circuit 114.

[0021] The VBUS2 pin of the second USB interface 140 is connected to the second DC power supply VBUS2 output by the second DC boost / buck circuit 122, and its communication pin CC is connected to the corresponding pin of the second charging protocol control circuit 124.

[0022] DC-DC step-down circuit 170 is used to convert the DC input power VBAT provided by the vehicle into DC power for the first charging protocol control circuit 114, the second charging protocol control circuit 124, and the hub chip 150. Figure 1 In the specific embodiment shown, the DC-DC step-down circuit 170 is a 5V-3.3V DC-DC step-down circuit. Please refer to... Figure 6 As shown, this is one embodiment of the present invention. Figure 1 The circuit diagram shown is of a DC step-down circuit. It uses the LDO chip LN20045Q1EFR from Leadcore to convert the DC input power VBAT into a stable 3.3V voltage, which is then supplied to the CCG3PA_1 chip, CCG3PA_2 chip, and USB4925 chip.

[0023] exist Figure 1 In the specific embodiment shown, the first DC-DC buck-boost circuit 112 includes an MPQ4262_1 chip (which is a power chip or DC-DC buck-boost chip from MPS). The MPQ4262_1 chip integrates two NMOS transistors (or MOS transistors). The peripheral circuit is configured with two NMOS transistors (or MOS transistors) to form a power boost-buck conversion output circuit (i.e., the first DC-DC buck-boost circuit 112). For details, please refer to [link to specific documentation]. Figure 4The diagram shown is a circuit diagram of the MPQ4262 chip and its peripheral circuits in one embodiment of the present invention; the first charging protocol control circuit 114 includes a CCG3PA_1 chip (which is a charging protocol control chip), and the CCG3PA_1 chip is connected to the communication pin CC of the first USB interface 130. For details, please refer to... Figure 3 The diagram shows a schematic of the CCG3PA chip and its peripheral circuitry in one embodiment of the present invention. The second DC-DC buck-boost circuit 122 includes an MPQ4262_2 chip (which is a power chip or DC-DC buck-boost chip from MPS). The MPQ4262_2 chip integrates two NMOS transistors (or MOS transistors). The peripheral circuitry is configured with two NMOS transistors (or MOS transistors) to form a power boost-buck conversion output circuit (i.e., the second DC-DC buck-boost circuit 122). For details, please refer to [link to documentation]. Figure 4 The diagram shown is a circuit diagram of the MPQ4262 chip and its peripheral circuits in one embodiment of the present invention; the second charging protocol control circuit 124 includes a CCG3PA_2 chip (which is a charging protocol control chip), and the CCG3PA_2 chip is connected to the communication pin CC of the second USB interface 140. For details, please refer to... Figure 3 The diagram shows a schematic of the CCG3PA chip and its peripheral circuitry in one embodiment of the present invention. The CCG3PA_1 and CCG3PA_2 chips are connected via an I2C1 bus, the MPQ4262_1 chip and CCG3PA_1 are connected via an I2C1 bus, and the MPQ4262_2 chip and CCG3PA_2 are connected via an I2C2 bus. The Hub chip 150 is implemented using Microchip's USB4925 chip; please refer to [reference needed]. Figure 5 As shown, it is a circuit diagram of the USB4925 chip and its peripheral circuits in one embodiment of the present invention.

[0024] exist Figure 1In the illustrated embodiment, the MPQ4262 chip initially has no output. The CCG3PA chip needs to send an MPQ4262_NE1 / 2 enable signal to enable the MPQ4262 chip. Simultaneously, the CCG3PA chip configures the MPQ4262 chip registers via I2C, enabling the VOUT output of MPQ4262 PIN7. The MPQ4262 chip outputs 5V by default. The CCG3PA chip dynamically adjusts the MPQ4262 chip's output voltage via FB according to the device's request. In other words, the CCG3PA_1 chip needs to send an enable signal to enable the MPQ4262_1 chip to work. The CCG3PA_1 chip configures the MPQ4262_1 chip via I2C, and the CCG3PA_1 chip dynamically adjusts the first DC power supply VBUS1 output by the first DC-DC buck-boost circuit 112 via FB, based on the first DC power supply VBUS1 output by the first DC-DC buck-boost circuit 112. Similarly, the CCG3PA_2 chip needs to send an enable signal to enable the MPQ4262_2 chip to work. The CCG3PA_2 chip configures the MPQ4262_2 chip via I2C, and the CCG3PA_2 chip dynamically adjusts the second DC power supply VBUS2 output by the second DC-DC buck-boost circuit 122 via FB, based on the second DC power supply VBUS2 output by the second DC-DC buck-boost circuit 122.

[0025] exist Figure 1 In the specific embodiment shown, both the first USB interface 130 and the second USB interface 140 are USB Type-C interfaces. The communication pins CC01 and CC02 of the first USB interface 130 are connected to the corresponding pins of the first charging protocol control circuit 114 (or the CCG3PA_1 chip); the communication pins CC11 and CC12 of the second USB interface 140 are connected to the corresponding pins of the second charging protocol control circuit 124 (or the CCG3PA_2 chip); the standard charging protocol supported by the first charging protocol control circuit 114 is the PD protocol; the standard charging protocol supported by the second charging protocol control circuit 124 is the PD protocol.

[0026] The following is a detailed introduction Figure 1 The working principle of the in-vehicle high-power USB data charging module is shown.

[0027] When the vehicle-mounted high-power USB data charging module detects that only the first USB interface 130 is connected to the device to be charged, the CCG3PA_1 chip enables the first DC-DC buck-boost circuit 112 (e.g., MPQ4262_1 chip) to work, and controls the first DC-DC buck-boost circuit 112 (e.g., MPQ4262_1 chip) to charge the device to be charged (e.g., mobile phone) through the first USB interface 130 based on a standard charging protocol (e.g., PD protocol).

[0028] When the vehicle-mounted high-power USB data charging module detects that only the second USB interface 140 is connected to a device to be charged, the CCG3PA_2 chip enables the second DC-DC buck-boost circuit 122 (e.g., MPQ4262_2 chip) to work, and controls the second DC-DC buck-boost circuit 122 (e.g., MPQ4262_2 chip) to charge the device to be charged (e.g., mobile phone) through the second USB interface 140 based on a standard charging protocol (e.g., PD protocol).

[0029] When the vehicle-mounted high-power USB data charging module detects that both the first USB port 130 and the second USB port 140 are connected to devices to be charged (e.g., mobile phones), the CCG3PA_1 chip enables the first DC-DC boost / buck circuit 112 (e.g., MPQ4262_1 chip) to operate, and controls the first DC-DC boost / buck circuit 112 (e.g., MPQ4262_1 chip) to charge the device to be charged (e.g., mobile phone) through the first USB port 130 based on a standard charging protocol (e.g., PD protocol); at the same time, the CCG3PA_2 chip enables the second DC-DC boost / buck circuit 122 (e.g., MPQ4262_2 chip) to operate, and controls the second DC-DC boost / buck circuit 122 (e.g., MPQ4262_2 chip) to charge the device to be charged (e.g., mobile phone) through the second USB port 140 based on a standard charging protocol (e.g., PD protocol).

[0030] exist Figure 1 In the specific embodiment shown, when only the first USB port 130 is connected to a device to be charged, the first USB port 130 provides a maximum of 45W of PD protocol charging to the device to be charged; when only the second USB port 140 is connected to a device to be charged, the second USB port 140 provides a maximum of 45W of PD protocol charging to the device to be charged; when both the first USB port 130 and the second USB port 140 are connected to devices to be charged, the first USB port 130 provides a maximum of 27W of PD protocol charging to the device to be charged, and the second USB port 140 also provides a maximum of 27W of PD protocol charging to the device to be charged.

[0031] In other words, Figure 1In the illustrated embodiment, the mature and reliable Infineon CCG3PA chip is used to establish, communicate, and execute the PD protocol. The two PD controllers (or CCG3PA chips) communicate via I2C. The CCG3PA chip enables the MPQ4262 power supply chip via GPIO. Each PD controller (or CCG3PA chip) can individually control the configuration of its corresponding MPQ4262 power supply chip via I2C communication, and control the output voltage of the MPQ4262 power supply chip via FB. The CCG3PA chip can meet the PD 3.1 output voltage control logic, outputting 5V, 9V, 15V, and 20V voltages according to device requests. In single-port output mode, this design can support a maximum of 45W of PD protocol charging. In dual-port output mode, each port can output a maximum of 27W of PD protocol charging, for a total maximum output of 54W.

[0032] exist Figure 1 In the illustrated embodiment, the data communication section uses Microchip's USB4925 chip, which supports two uplink ports and two downlink ports. The mobile device (or device to be charged) can communicate with the host via USB 2.0 through the design of this invention. The host can also read the registers of the CCG3PA_1 and CCG3PA_2 chips through the Hub chip 150 to determine whether the mobile device (or device to be charged) connected to the CCG3PA_1 or CCG3PA_2 chip is in PD state (or standard charging protocol state) or non-PD state (or non-standard charging protocol state). When an overcurrent or short circuit occurs at the output of the first USB interface 130 or the second USB interface 140, the CCG3PA_1 or CCG3PA_2 chip can transmit a Fault signal to the Hub chip 150 (or USB4925 chip), thereby transmitting it to the vehicle's infotainment system. The vehicle's infotainment system then continuously pulls the Fault signal low and resets it according to its own software strategy. Alternatively, the CCG3PA_1 chip or the CCG3PA_2 chip can transmit the fault signal of the first USB interface 130 or the second USB interface 140 to the vehicle's infotainment system via the Hub chip 150.

[0033] exist Figure 1 In the embodiment shown, the vehicle-mounted high-power USB data charging module also includes an upstream connector 160, an input protection and filtering circuit 180, an input interface circuit 190, and an electrostatic discharge and overvoltage protection circuit 200.

[0034] The downstream ports of the Hub chip 150 are connected to the data pins D of the first USB interface 130 and the second USB interface 140, respectively, and its upstream ports are connected to the corresponding data pins of the upstream connector 160 for data transmission. Figure 1In the specific embodiment shown, the data pins D+B and DB of the first USB interface 130 and the data pins D+A and DA of the second USB interface 140 are respectively connected to the data pins D+2, D-2, D+1, and D-1 of the downstream port of the Hub chip 150; the data pins D2+, D-2, D1+, and D1- of the upstream port of the Hub chip 150 are connected to the upstream port connector 160. In this way, the Hub chip 150 can support data communication between two pairs of upstream ports and two pairs of downstream ports.

[0035] The input terminal of the input protection and filtering circuit 180 receives the vehicle DC input power supply VBAT, and its output terminal is connected to the input terminal Vin of the first DC step-up / step-down circuit 112 and the second DC step-up / step-down circuit 122. The input protection and filtering circuit 180 is used for reverse connection protection, surge protection and filtering of the vehicle DC input power supply VBAT.

[0036] Please refer to Figure 2 As shown, this is one embodiment of the present invention. Figure 1 The circuit diagram shown is for the input protection and filtering circuit. Figure 2 The input protection and filtering circuit shown includes an input reverse protection unit 182, a filtering unit 184, and a voltage regulation filtering unit 186.

[0037] The input reverse protection unit 182 includes a PMOS transistor Q101, a Zener diode D118, and a resistor R117. The source D of the PMOS transistor Q101 is connected to the vehicle DC input power supply VBAT, its gate G is connected to the connection node TP119, and its drain is connected to the connection node TP102. One end of the resistor R117 is connected to the connection node TP119, and the other end is grounded. The anode of the Zener diode D118 is connected to the connection node TP119, and its cathode is connected to the connection node TP102.

[0038] The filter unit 184 includes capacitors C103, C104, C105, C106, C115, and inductor L100. Capacitor C103 is connected between connection node TP102 and the ground terminal; capacitor C104 is connected between connection node TP102 and the ground terminal; inductor L101 is connected between connection node TP102 and connection node TP103; capacitor C105 is connected between connection node TP103 and the ground terminal; capacitor C106 is connected between connection node TP103 and the ground terminal; and capacitor C115 is connected between connection node TP103 and the ground terminal. Connection node TP103 is connected to the output terminal of the input protection and filter circuit 100 (or the input terminal VIN of the first DC-DC step-up / step-down circuit 112 and the second DC-DC step-up / step-down circuit 122).

[0039] The voltage regulator filter unit 186 includes a bidirectional Zener diode D102 and a capacitor C102. The bidirectional Zener diode D102 is connected between the vehicle DC input power supply VBAT and the ground terminal; the capacitor C102 is connected between the vehicle DC input power supply VBAT and the ground terminal.

[0040] exist Figure 2 In the embodiment shown, a TVS diode SMAJ30CAHM2G (i.e., bidirectional Zener diode D102) is used for surge protection, a PMOS diode PJQ4401P-AU_R2_000A1 (i.e., PMOS diode Q101) is used for reverse protection, and a π-filter short circuit (i.e., filter unit 184) composed of L101 and C103, C104, C105, and C106 is used for filtering the input power supply.

[0041] The power supply pin KL30 of the input interface circuit 190 is used to provide the vehicle DC input power VBAT; the enable pin Enable of the input interface circuit 190 is used to provide an enable signal to the enable terminal of the DC buck circuit 170 to wake up the DC buck circuit 170 and start working; the ground pin KL31 of the input interface circuit 190 is grounded.

[0042] One end of the electrostatic discharge and overvoltage protection circuit 200 is connected to the data pins D+B and DB of the first USB interface 130 and the data pins D+A and DA of the second USB interface 140, and the other end is connected to the data pins D+2, D-2, D+1, and D-1 on one side of the Hub chip 150.

[0043] In summary, this invention provides a high-power USB data charging module for vehicles based on the CCG3PA chip. Its two Type-C outputs are symmetrical, and the PD control software is flexible and adjustable. The two Type-C outputs are independent yet can communicate with each other. A single-port output of 45W can meet the fast charging needs of most mobile devices; the dual-port 27W+27W output, with its simple power distribution mechanism, avoids communication interference caused by complex power distribution strategies. This solution not only meets the growing demand for fast charging but also retains the traditional communication functions between mobile devices and vehicle systems, supporting applications such as CarPlay and CarLife. It meets the USB 2.0 certification requirements of the USB IF Association, the CarPlay SI test required by Apple MFi, and PD 3.1 certification, resulting in a better driving and riding experience.

[0044] It should be noted that any modifications made by those skilled in the art to the specific embodiments of the present invention do not depart from the scope of the claims. Accordingly, the scope of the claims is not limited to the foregoing specific embodiments.

Claims

1. A vehicle-mounted high-power USB data charging module, characterized in that, It includes a first charging circuit, a second charging circuit, a hub chip, a first USB interface, and a second USB interface. The first charging circuit includes a first DC-DC boost / buck circuit and a first charging protocol control circuit. The first DC-DC boost / buck circuit is used to convert the vehicle DC input power VBAT received at its input terminal Vin into a DC-DC power supply VBUS1 to be provided to the first USB interface. The first charging protocol control circuit is connected to the first DC-DC boost / buck circuit and controls the first DC-DC boost / buck circuit to charge the device to be charged through the first USB interface based on a standard charging protocol. The second charging circuit includes a second DC-DC boost / buck circuit and a second charging protocol control circuit. The second DC-DC boost / buck circuit is used to convert the on-board DC input power VBAT received at its input terminal Vin into a DC-DC converter to obtain a second DC power supply VBUS2 provided to the second USB interface. The second charging protocol control circuit is connected to the second DC-DC boost / buck circuit and the first charging protocol control circuit, and controls the second DC-DC boost / buck circuit to charge the device to be charged through the second USB interface based on the standard charging protocol. The VBUS1 pin of the first USB interface is connected to the first DC power supply VBUS1 output by the first DC buck-boost circuit, and its communication pin CC is connected to the corresponding pin of the first charging protocol control circuit. The VBUS2 pin of the second USB interface is connected to the second DC power supply VBUS2 output from the second DC boost / buck circuit, and its communication pin CC is connected to the corresponding pin of the second charging protocol control circuit. The first charging protocol control circuit includes a CCG3PA_1 chip, which is connected to the communication pin CC of the first USB interface. The second charging protocol control circuit includes a CCG3PA_2 chip, which is connected to the communication pin CC of the second USB interface; The CCG3PA_1 chip and the CCG3PA_2 chip are communicatively connected; The first charging protocol control circuit supports the PD standard charging protocol, and the second charging protocol control circuit supports the PD standard charging protocol. When the vehicle-mounted high-power USB data charging module detects that only the first USB interface is connected to the device to be charged, the CCG3PA_1 chip enables the first DC buck-boost circuit to work, and controls the first DC buck-boost circuit to charge the device to be charged through the first USB interface based on the standard charging protocol. When the vehicle-mounted high-power USB data charging module detects that only the second USB interface is connected to the device to be charged, the CCG3PA_2 chip enables the second DC-DC buck-boost circuit to work, and controls the second DC-DC buck-boost circuit to charge the device to be charged through the second USB interface based on the standard charging protocol; When the vehicle-mounted high-power USB data charging module detects that both the first USB port and the second USB port are connected to devices to be charged, the CCG3PA_1 chip enables the first DC-DC boost / buck circuit to operate and controls the first DC-DC boost / buck circuit to charge the devices to be charged via the first USB port based on the standard charging protocol; simultaneously, the CCG3PA_2 chip enables the second DC-DC boost / buck circuit to operate and controls the second DC-DC boost / buck circuit to charge the devices to be charged via the second USB port based on the standard charging protocol. When only the first USB port is connected to a device to be charged, the first USB port provides a maximum of 45W of PD protocol charging to the device to be charged. When only the second USB port is connected to a device to be charged, the second USB port provides the device to be charged with a maximum of 45W PD protocol charging. When both the first USB port and the second USB port are connected to a device to be charged, the first USB port provides a maximum of 27W of PD protocol charging to the device to be charged, and the second USB port provides a maximum of 27W of PD protocol charging to the device to be charged.

2. The in-vehicle high-power USB data charging module according to claim 1, characterized in that, It also includes a DC buck circuit for converting the DC input power VBAT provided by the vehicle into DC power for the first charging protocol control circuit, the second charging protocol control circuit and the hub chip.

3. The in-vehicle high-power USB data charging module according to claim 2, characterized in that, It also includes an uplink connector. The downstream port of the Hub chip is connected to the data pin D of the first USB interface and the data pin D of the second USB interface, respectively, and its upstream port is connected to the corresponding data pin D of the upstream port connector, respectively, for data transmission.

4. The in-vehicle high-power USB data charging module according to claim 2, characterized in that, The communication pins CC01 and CC02 of the first USB interface are respectively connected to the corresponding pins of the CCG3PA_1 chip; The communication pins CC11 and CC12 of the second USB interface are respectively connected to the corresponding pins of the CCG3PA_2 chip; Both the first USB interface and the second USB interface are USB Type-C interfaces.

5. The vehicle-mounted high-power USB data charging module according to claim 3, characterized in that, The data pins D+B and DB of the first USB interface, and the data pins D+A and DA of the second USB interface are respectively connected to the data pins D+2, D-2, D+1, and D-1 of the downstream port of the Hub chip; The data pins D2+, D-2, D1+, and D1- of the uplink port of the Hub chip are connected to the uplink port connector.

6. The in-vehicle high-power USB data charging module according to claim 1, characterized in that, The Hub chip is communicatively connected to the CCG3PA_1 chip and / or the CCG3PA_2 chip.

7. The in-vehicle high-power USB data charging module according to claim 6, characterized in that, The host reads the registers of the CCG3PA_1 chip and CCG3PA_2 chip through the Hub chip to read whether the device to be charged connected to the CCG3PA_1 chip or CCG3PA_2 chip is in a standard charging protocol state or a non-standard charging protocol state. The CCG3PA_1 chip or CCG3PA_2 chip transmits the fault signal of the first USB interface or the second USB interface to the vehicle system via the Hub chip.

8. The in-vehicle high-power USB data charging module according to claim 1, characterized in that, The first DC-DC buck-boost circuit includes an MPQ4262_1 chip, which, together with its internally integrated MOS transistor and the MOS transistor configured in the peripheral circuit, constitutes the first DC-DC buck-boost circuit. The second DC-DC buck-boost circuit includes an MPQ4262_2 chip, which, together with its internally integrated MOSFET and the MOSFET configured in the peripheral circuit, constitutes the second DC-DC buck-boost circuit. The MPQ4262_1 chip is communicatively connected to the CCG3PA_1 chip; The MPQ4262_2 chip is communicatively connected to the CCG3PA_2 chip.

9. The vehicle-mounted high-power USB data charging module according to claim 8, characterized in that, The CCG3PA_1 chip sends an enable signal to enable the MPQ4262_1 chip to work. The CCG3PA_1 chip configures the MPQ4262_1 chip, and the CCG3PA_1 chip dynamically adjusts the first DC power supply VBUS1 output by the first DC buck-boost circuit through FB based on the first DC power supply VBUS1 output by the first DC buck-boost circuit. The CCG3PA_2 chip sends an enable signal to enable the MPQ4262_2 chip to work. The CCG3PA_2 chip configures the MPQ4262_2 chip, and the CCG3PA_2 chip dynamically adjusts the second DC power supply VBUS2 of the second DC boost circuit through FB based on the second DC power supply VBUS2 output by the second DC boost circuit.

10. The vehicle-mounted high-power USB data charging module according to any one of claims 1-9, characterized in that, It also includes input protection and filtering circuits. The input terminal of the input protection and filtering circuit receives the vehicle-mounted DC input power supply VBAT, and its output terminal is connected to the input terminal Vin of the first DC boost / buck circuit and the second DC boost / buck circuit.

11. The vehicle-mounted high-power USB data charging module according to claim 10, characterized in that, The input protection and filtering circuit includes an input reverse protection unit, a filtering unit, and a voltage regulation filtering unit. The input reverse protection unit includes a PMOS transistor Q101, a Zener diode D118, and a resistor R117. The source of the PMOS transistor Q101 is connected to the vehicle DC input power supply VBAT, its gate is connected to the connection node TP119, and its drain is connected to the connection node TP102. One end of the resistor R117 is connected to the connection node TP119, and the other end is grounded. The anode of the Zener diode D1118 is connected to the connection node TP119, and its cathode is connected to the connection node TP102. The filtering unit includes capacitors C103, C104, C105, C106, C115, and inductor L101. Specifically, capacitor C103 is connected between connection node TP102 and the ground terminal; capacitor C104 is connected between connection node TP102 and the ground terminal; inductor L101 is connected between connection node TP102 and connection node TP103; capacitor C105 is connected between connection node TP103 and the ground terminal; capacitor C106 is connected between connection node TP103 and the ground terminal; capacitor C115 is connected between connection node TP103 and the ground terminal; and connection node TP103 is connected to the output terminal of the input protection and filtering circuit. The voltage stabilizing and filtering unit includes a bidirectional Zener diode D102 and a capacitor C102. The bidirectional Zener diode D102 is connected between the vehicle DC input power supply VBAT and the ground terminal; the capacitor C102 is connected between the vehicle DC input power supply VBAT and the ground terminal.

12. The vehicle-mounted high-power USB data charging module according to claim 2, characterized in that, It also includes an input interface circuit. The power supply pin KL30 of the input interface circuit is used to provide the vehicle-mounted DC input power VBAT; The enable pin of the input interface circuit is used to provide an enable signal EN to the enable terminal of the DC-DC buck circuit to wake up the DC-DC buck circuit and start working. The grounding pin KL31 of the input interface circuit is grounded.

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