CN220421457U

CN220421457U - Vehicle-mounted high-power charging module supporting USB data and video DP data

Info

Publication number: CN220421457U
Application number: CN202321504870.3U
Authority: CN
Inventors: 程庞凯; 华敏; 胡玲
Original assignee: Zhejiang Keboda Industrial Co ltd; Keboda Technology Co ltd
Current assignee: Zhejiang Keboda Industrial Co ltd; Keboda Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-01-30
Anticipated expiration: 2033-06-14

Abstract

The utility model provides a vehicle-mounted high-power charging module supporting USB data and video DP data, wherein a control circuit carries out direct current-direct current conversion on a vehicle-mounted direct current input power supply received by an input end Vin of the control circuit so as to provide the vehicle-mounted direct current input power supply for a first downlink USB interface and/or a second downlink USB interface; the video data converter converts the video data from the HMTD interface to obtain video DP data and provides the video DP data to the first multiplexer and/or the second multiplexer; the hub controller provides USB data from the upstream USB interface to the first multiplexer and/or the second multiplexer; the first multiplexer switches USB data or video DP data to the first downlink USB interface; the second multiplexer switches the USB data or the video DP data to the second downlink USB interface based on the control of the control circuit. Compared with the prior art, the utility model not only solves the problem of high-power charging requirements of computers, tablets and the like, but also meets the entertainment experience of customers in cabins.

Description

Vehicle-mounted high-power charging module supporting USB data and video DP data

[ field of technology ]

The utility model relates to the technical field of vehicle-mounted charging and data communication, in particular to a vehicle-mounted high-power charging module supporting USB data and video DP data.

[ background Art ]

Along with the continuous improvement of the living standard of people, the application of electronic products such as mobile phones, flat plates, notebooks and the like is more and more widespread, but the problem of quick charging is solved, and particularly, when a user is driving and traveling, the problem that passengers are boring in the vehicle is solved, and the problem of equipment charging is also solved. In addition, the current high-power USB charging module is insufficient in chip integration level, and is high in cost due to shortage of peripheral resources.

Accordingly, there is a need for an improved solution to the above-mentioned problems.

[ utility model ]

The utility model aims to provide a vehicle-mounted high-power charging module supporting USB data and video DP data, which adopts a CCG7D chip to control PD & DP, realizes 87W high-power charging and simultaneously satisfies high-definition video transmission, solves the problem of high-power charging requirements of computers, tablets and the like, and satisfies entertainment experience of customers in cabins.

According to one aspect of the present utility model, the present utility model provides a vehicle-mounted high-power charging module supporting USB data and video DP data, which includes a control circuit, an HMTD interface, a video data converter, a hub controller, a first multiplexer, a second multiplexer, an upstream USB interface, a first downstream USB interface, and a second downstream USB interface, where the control circuit performs dc-dc conversion on a vehicle-mounted dc input power VBAT received by an input terminal Vin thereof to obtain a first dc power 0-VBUS provided to the first downstream USB interface and/or a second dc power 1-VBUS provided to the second downstream USB interface; the video data converter converts video data from the HMTD interface based on the control of the control circuit to obtain video DP data and provides the video DP data to the first multiplexer and/or the second multiplexer; the hub controller provides the USB data from the upstream USB interface to the first multiplexer and/or the second multiplexer based on the control of the control circuit, and provides the USB data from the first multiplexer and/or the second multiplexer to the upstream USB interface; the first multiplexer switches the USB data provided by the hub controller or the video DP data provided by the video data converter to the first downlink USB interface based on the control of the control circuit; the second multiplexer switches the USB data provided by the hub controller or the video DP data provided by the video data converter to the second downlink USB interface based on the control of the control circuit.

Compared with the prior art, the utility model adopts one CCG7D chip to control PD & DP, realizes 87W high-power charging and simultaneously satisfies high-definition video transmission, solves the problem of high-power charging requirements of computers, tablets and the like, and satisfies entertainment experience of customers in cabins.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of a vehicle-mounted high-power charging module supporting USB data and video DP data according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of an input protection and filtering circuit according to an embodiment of the present utility model, as shown in FIG. 1;

FIG. 3 is a schematic circuit diagram of the input interface circuit of FIG. 1 in one embodiment of the present utility model;

FIG. 4 is a circuit diagram of a first downstream USB interface according to an embodiment of the present utility model, as shown in FIG. 1;

FIG. 5 is a circuit diagram of a second downstream USB interface according to an embodiment of the present utility model, such as that shown in FIG. 1;

FIG. 6 is a schematic diagram of the HMTD interface of FIG. 1 in one embodiment of the utility model;

FIG. 7 is a circuit schematic of the USX2730 chip of FIG. 1 in one embodiment of the utility model;

FIG. 8 is a circuit diagram of an upstream USB interface as shown in FIG. 1 in one embodiment of the present utility model;

FIG. 9 is a circuit schematic of a thermal protection circuit in one embodiment of the utility model;

FIG. 10 is a schematic diagram of an MCU portion of the CCG7D chip of FIG. 1 integrated therein in one embodiment of the present utility model;

FIG. 11 is a schematic diagram of a PD controller and buck-boost and their peripheral circuitry integrated within the CCG7D chip of FIG. 1 in one embodiment of the utility model;

FIG. 12 is a schematic diagram of a PD controller and buck-boost and their peripheral circuitry integrated within the CCG7D chip of FIG. 1 in another embodiment of the utility model;

FIG. 13 is a schematic diagram of a hub controller, such as that shown in FIG. 1, in accordance with an embodiment of the utility model;

FIG. 14 is a schematic circuit diagram of a first multiplexer according to one embodiment of the present utility model, such as that shown in FIG. 1;

FIG. 15 is a circuit schematic of the second multiplexer shown in FIG. 1 in one embodiment of the present utility model;

FIG. 16 is a schematic diagram of a video data converter as shown in FIG. 1 in one embodiment of the utility model;

FIG. 17 is a circuit schematic of the power rail circuit of FIG. 1 in a first embodiment of the utility model;

FIG. 18 is a circuit schematic of the power rail circuit of FIG. 1 in a second embodiment of the utility model;

FIG. 19 is a circuit schematic of the power rail circuit of FIG. 1 in a third embodiment of the utility model;

FIG. 20 is a circuit diagram of the SD card shown in FIG. 1 in one embodiment of the present utility model.

[ detailed description ] of the utility model

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Unless specifically stated otherwise, the terms coupled, connected, or connected, as used herein, mean either direct or indirect connection, such as a and B, and include both direct electrical connection of a and B, and connection of a to B through electrical components or circuitry.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Fig. 1 is a schematic circuit diagram of a vehicle-mounted high-power charging module supporting USB data and video DP data according to an embodiment of the utility model. The vehicle-mounted high-power charging module supporting USB data and video DP data shown in fig. 1 includes a control circuit 110, an HMTD interface 120, a video data converter 130, a HUB Controller (i.e., HUB Controller) 140, a first multiplexer 150, a second multiplexer 160, an upstream USB interface 170, a first downstream USB interface 180, and a second downstream USB interface 190.

The control circuit 110 performs dc-dc conversion on the vehicle dc input power VBAT received at the input terminal Vin thereof to obtain the first dc power 0-VBUS provided to the first downstream USB interface 180 and/or the second dc power 1-VBUS provided to the second downstream USB interface 190. The video data converter 130 converts video data from the HMTD interface 120 based on the control of the control circuit 110 to video DP data and supplies it to the first multiplexer 150 and/or the second multiplexer 160. The HMTD is fully called High Speed-module twist-pair Data, which is pushed out by Rosenberg in 2017, and the connector is mainly used for vehicle-mounted differential signal link transmission and is a 360-degree full-shielding system; DP is a high definition digital display interface standard, which can connect with computer and display, and also can connect with computer and home theater. The hub controller 140 supplies the USB data from the upstream USB interface 170 to the first multiplexer 150 and/or the second multiplexer 160 based on the control of the control circuit 110, and supplies the USB data from the first multiplexer 150 and/or the second multiplexer 160 to the upstream USB interface 170. The first multiplexer 150 switches the USB data provided from the hub controller 140 or the video DP data provided from the video data converter 130 to the first downstream USB interface 180 based on the control of the control circuit 110. The second multiplexer 160 switches the USB data provided from the hub controller 140 or the video DP data provided from the video data converter 130 to the second downstream USB interface 190 based on the control of the control circuit 110.

In the embodiment shown in fig. 1, the control circuit 110 includes a CCG7D chip, please refer to fig. 10, which is a schematic diagram of a portion of an MCU (Microcontroller Unit, i.e., micro control unit) integrated inside the CCG7D chip shown in fig. 1 in one embodiment of the present utility model; referring to fig. 11, a schematic diagram of a PD controller and buck-boost (i.e., buck-boost circuits) integrated inside the CCG7D chip shown in fig. 1 and peripheral circuits thereof according to an embodiment of the present utility model is shown; referring to FIG. 12, a schematic diagram of a PD controller and a buck-boost integrated inside the CCG7D chip of FIG. 1 and peripheral circuits thereof according to another embodiment of the present utility model is shown. The CCG7D chip is internally integrated with an MCU and a 2-path PD protocol control circuit, and judges whether the peripheral equipment supports the PD protocol and the required charging power according to the request of the CC signal, and the PD protocol controller outputs corresponding power. The full name of the PD is USB Power Delivery Specification, which is simply a fast charging technical standard proposed by the USB standardization organization.

As can be seen from fig. 1, 10, 11 and 12, the control circuit 110 (or CCG7D chip) performs dc-dc conversion on the vehicle dc input power VBAT received by the input terminal Vin thereof based on the PD charging protocol to obtain the first dc power 0-VBUS provided to the first downstream USB interface 180 and/or the second dc power 1-VBUS provided to the second downstream USB interface 190. In one embodiment, when only the first downstream USB interface 180 is connected to the device to be charged, the control circuit 110 (or the CCG7D chip) controls the first downstream USB interface 180 to provide a maximum charging power of 60W; when only the second downstream USB interface 190 is connected to the device to be charged, the control circuit 110 (or the CCG7D chip) controls the second downstream USB interface 190 to provide the charging power of maximum 27W; when the first downstream USB interface 180 and the second downstream USB interface 190 are both connected to the device to be charged, the control circuit 110 (or the CCG7D chip) controls the first downstream USB interface 180 to provide the maximum charging power of 60W, and controls the second downstream USB interface 190 to provide the maximum charging power of 27W. That is, the charging module for supporting USB data and video DP data with high power on a vehicle shown in fig. 1 can output charging power supporting 60W at maximum by a single port, and the two ports simultaneously output charging power supporting 87W in total, thereby greatly shortening charging time.

The CCG7D chip is communicatively coupled to the video data converter 130, the hub controller 140, the first multiplexer 150, and the second multiplexer 160. In the particular embodiment shown in fig. 1, the CCG7D chip is communicatively coupled to the video data converter 130, the hub controller 140, the first multiplexer 150, and the second multiplexer 160 via an I2C bus.

The up pins rin0+/rin0-and rin1+/rin1-of the video data converter 130 are connected to the HMTD interface 120, the down pin 0_hpd thereof is connected to the pin corresponding to the control circuit 110 (or CCG7D chip) and the up pin corresponding to the first multiplexer 150, the down pin 0_aux+/AUX-thereof is connected to the up pin corresponding to the first multiplexer 150, the down pin 0_dp 4Lane thereof is connected to the up pin corresponding to the first multiplexer 150, the down pin 1_hpd thereof is connected to the pin corresponding to the control circuit 110 (or CCG7D chip) and the up pin corresponding to the second multiplexer 160, the down pin 1_aux+/AUX-thereof is connected to the up pin corresponding to the second multiplexer 160, and the down pin 1_dp 4Lane thereof is connected to the up pin corresponding to the second multiplexer 160. In the embodiment shown in fig. 1, the video data converter 130 employs a DS90UH984WRURTQ1 chip, and referring specifically to fig. 16, which is a schematic diagram of the video data converter shown in fig. 1 in one embodiment of the present utility model, the video data converter shown in fig. 16 includes a DS90UH984WRURTQ1 chip and its peripheral circuits. The DS90UH984WRURTQ1 chip integrates a dual channel DP and 1 FPD-LINK (Flat Panel Display Link, i.e., video serial communication) channels, wherein the FPD-LINK channels can transmit not only video signals but also I2C and clock signals, and the DS90UH984WRURTQ1 chip is connected to the HMTD interface 120 through the FPD-LINK. Referring to fig. 6, a schematic diagram of the HMTD interface of fig. 1 in one embodiment of the present utility model is shown.

In the implementation shown in fig. 1, the first downstream USB interface 180 is a USB3.1type-C interface, the pin 0_cc of the first downstream USB interface 180 is connected to a pin corresponding to the CCG7D chip, the pin 0_D +/D thereof is connected to a downstream pin corresponding to the hub controller 140, the pin 0-VBUS thereof is connected to a pin corresponding to the control circuit 110, the pin 0-SUB1/2 thereof is connected to a downstream pin corresponding to the first multiplexer 150, and the pin 0_tx/0_rx thereof is connected to a downstream pin corresponding to the first multiplexer 150. Referring to fig. 4, a circuit diagram of a first downstream USB interface shown in fig. 1 according to an embodiment of the present utility model is shown, and the first downstream USB interface shown in fig. 4 is a USB3.1type-C interface.

In the implementation shown in fig. 1, the second downstream USB interface 190 is a USB3.1type-C interface, the pin 1_cc of the second downstream USB interface 190 is connected to a pin corresponding to the CCG7D chip, the pin 1_d+/D-thereof is connected to a downstream pin corresponding to the hub controller 140, the pin 1-VBUS thereof is connected to a pin corresponding to the control circuit 110, the pin 1-SUB1/2 thereof is connected to a downstream pin corresponding to the second multiplexer 160, and the pin 1_tx/0_rx thereof is connected to a downstream pin corresponding to the second multiplexer 160. Referring to fig. 5, a circuit diagram of a second downstream USB interface shown in fig. 1 in an embodiment of the present utility model is shown, and the second downstream USB interface shown in fig. 5 is a USB3.1type-C interface.

In the implementation shown in fig. 1, the upstream USB interface 170 is a USB3.1type-C interface, a pin vbus_up of the upstream USB interface 170 is connected to an upstream pin corresponding to the hub controller 140, a pin d+/D-of the upstream USB interface is connected to an upstream pin corresponding to the hub controller 140, a pin CC1 of the upstream USB interface is connected to an upstream pin corresponding to the hub controller 140, and a pin TX/RX of the upstream USB interface is connected to an upstream pin corresponding to the hub controller 140. Referring to fig. 8, a circuit diagram of an upstream USB interface shown in fig. 1 in an embodiment of the present utility model is shown, and the upstream USB interface shown in fig. 8 is a USB3.1type-C interface. Correspondingly, the downstream pin 0_tx/RX of the Hub controller 140 is connected to the upstream pin corresponding to the first multiplexer 150, the downstream pin 1_tx/RX thereof is connected to the upstream pin corresponding to the second multiplexer 160, and the downstream pin 0_cc1_p thereof is grounded via a resistor.

The vehicle-mounted high-power charging module supporting USB data and video DP data shown in FIG. 1 further comprises an SD card control circuit 200, SD full name Secure Digital Memory Card/SD card, which is a new generation memory device based on a semiconductor flash memory. The downstream port of the SD card control circuit 200 is connected to the SD card 210, and the upstream port thereof is connected to the hub controller 140, so that the SD card 210 can perform data interaction with the vehicle machine sequentially through the SD card control circuit 200, the hub controller 140 and the upstream USB interface 170. In the specific embodiment shown in fig. 1, the SD card control circuit 200 adopts a USX2730 chip (which belongs to an automobile SD card control chip and may be simply referred to as a USX chip), its downstream port may be designed with an SD card PIN pair PIN, and its upstream port is a USB2.0 interface, and may be directly connected to the hub controller 140 to perform DATA interaction with an automobile machine, specifically, the downstream port of the SD card control circuit 200 includes a PIN DATA, a PIN CLK, a PIN VDD, a PIN CMD and a PIN CD; pins D+/D-of the upstream port of SD card control circuit 200 are connected to corresponding downstream pins of Hub controller 140. In the embodiment shown in fig. 1, the SD card control circuit 200 employs a USX2730 chip, and particularly, please refer to fig. 7, which is a circuit schematic of the USX2730 chip shown in fig. 1 in one embodiment of the present utility model. Please refer to fig. 20, which is a circuit diagram of the SD card 210 shown in fig. 1 according to an embodiment of the present utility model.

In the implementation shown in fig. 1, the HUB Controller 140 employs a USB7002HUB Controller chip, and referring specifically to fig. 13, a schematic diagram of the HUB Controller shown in fig. 1 in one embodiment of the present utility model is shown. The HUB Controller shown in fig. 13 includes a USB7002HUB Controller chip and its peripheral circuits. In the embodiment shown in fig. 1 and 13, the hub controller 140 mainly has 1 uplink port and 3 downlink ports, which are respectively 3 USB3.1 interfaces and 1 USB2.0 interfaces, the uplink port is mainly used for data communication with the host, and the downlink port is used for connecting a load or electronic devices such as an SD card, a mobile phone, a tablet, a computer, and the like.

In the implementation shown in fig. 1, the first multiplexer 150 employs a MUX (i.e., multiplexer) TUSB1046 chip (which may be simply referred to as a MUX chip), and referring specifically to fig. 14, which is a schematic circuit diagram of the first multiplexer shown in fig. 1 in one embodiment of the present utility model, the first multiplexer shown in fig. 14 includes a MUX TUSB1046 chip and its peripheral circuits; the second multiplexer 160 employs a MUX TUSB1046 chip, and referring to fig. 15, a circuit diagram of the second multiplexer shown in fig. 1 in an embodiment of the utility model is shown, and the second multiplexer shown in fig. 15 includes the MUX TUSB1046 chip and its peripheral circuits. As can be seen from fig. 1, 14 and 15, the MUX (i.e., the first multiplexer 150 and the second multiplexer 160) selects the Ti TUSB1046 chip, which is mainly used for switching the DP signal and the USB3.1 signal, and the chip is provided with signal equalization, which can be completely controlled by the MCU in the control circuit 110 through the I2C, so that the peripheral circuits can be reduced to a great extent, and the design cost is reduced.

The vehicle-mounted high-power charging module supporting USB data and video DP data shown in fig. 1 further includes a thermal protection circuit (not shown), and referring specifically to fig. 9, a schematic circuit diagram of the thermal protection circuit in an embodiment of the present utility model is shown. The thermal protection circuit shown in fig. 9 includes a resistor R902, a thermistor TH901, and a capacitor C910, where the resistor R902 is connected between the power supply terminal VDDD and the connection node TP 913; the thermistor TH901 is connected between the connecting node TP913 and the ground terminal; the capacitor C910 is connected between the connection node TP913 and the ground terminal; the voltage at the connection node TP913 is a thermal resistor voltage ntc_1, which reflects the ambient temperature of the thermal protection circuit, and the thermal resistor voltage ntc_1 is correspondingly de-rated by calculation. It can also be said that the thermal protection circuit shown in fig. 9 mainly consists of an NTC resistor divider circuit, and is converted into different voltage signals by different resistance values of NTC at different temperatures. The MCU integrated inside the CCG7D chip collects the voltage signal, and the ambient temperature of an actual product is obtained through calculation, so that the intelligent derating function of the temperature is realized according to different strategies.

The on-board high-power charging module supporting USB data and video DP data shown in fig. 1 further includes a power rail circuit 220 that converts the on-board dc input power VBAT received at the input terminal into one or more dc voltages to power the video data converter 130, the hub controller 140, the first multiplexer 150, the second multiplexer 160, and the SD card control circuit 200. In the embodiment shown in fig. 1, the power rail circuit 220 adopts a two-stage power supply mode to supply power to the system, and ensures the rationality of the power-on time sequence and reduces the standby power consumption to the greatest extent according to different targeted designs of different power supply requirements of different circuits. Referring to fig. 17, a circuit diagram of the power rail circuit shown in fig. 1 according to a first embodiment of the present utility model is shown; referring to fig. 18, a circuit diagram of the power rail circuit shown in fig. 1 according to a second embodiment of the present utility model is shown; fig. 19 is a schematic circuit diagram of the power rail circuit shown in fig. 1 according to a third embodiment of the present utility model.

The charging module for supporting USB data and video DP data with high power in a vehicle shown in fig. 1 further includes an input interface 230, please refer to fig. 3, which is a circuit schematic diagram of an input interface circuit in an embodiment of the present utility model, as shown in fig. 1, the power pin 1 of the input interface circuit shown in fig. 3 is used for providing a vehicle dc input power VBAT, and the ground pin 3 is grounded.

The charging module for supporting USB data and video DP data with high power in a vehicle as shown in fig. 1 further includes an input protection and filtering circuit 240, where an input end of the input protection and filtering circuit 240 receives a vehicle dc input power VBAT, and an output end of the input protection and filtering circuit 240 is connected to an input end Vin of the control circuit 110 and an input end of the power rail circuit 220, and the input protection and filtering circuit 240 is used for anti-reverse connection, surge protection and filtering of the vehicle dc input power VBAT.

Referring to fig. 2, which is a schematic circuit diagram of the input protection and filtering circuit shown in fig. 1 according to an embodiment of the present utility model, the input protection and filtering circuit shown in fig. 2 includes an input anti-reflection protection unit 242, a filtering unit 244 and a voltage stabilizing filtering unit 246.

The input anti-reverse protection unit 242 comprises a PMOS tube Q100, a PMOS tube Q101, a voltage stabilizing diode D100 and a resistor R101, wherein the source electrode of the PMOS tube Q100 is connected with a vehicle-mounted direct current input power supply VBAT, the grid electrode of the PMOS tube Q100 is connected with a connecting node TP103, and the drain electrode of the PMOS tube Q100 is connected with the connecting node TP 100; the source electrode of the PMOS tube Q101 is connected with the vehicle-mounted direct current input power supply VBAT, the grid electrode of the PMOS tube Q101 is connected with the connecting node TP103, and the drain electrode of the PMOS tube Q is connected with the connecting node TP 100; one end of the resistor R101 is connected with the connecting node TP103, and the other end of the resistor R is grounded; the positive electrode of the zener diode D100 is connected to the connection node TP103, and the negative electrode thereof is connected to the connection node TP 100.

The filtering unit 244 includes a capacitor C101, a capacitor C102, a capacitor C103, a capacitor C104, a capacitor C105, a schottky diode D101, a schottky diode D102, and an inductor L100, wherein the capacitor C101 is connected between the connection node TP100 and the ground terminal; the capacitor C102 is connected between the connecting node TP100 and the ground terminal; the inductor L100 is connected between the connection node TP100 and the connection node TP 101; the capacitor C104 is connected between the connecting node TP101 and the ground terminal; the capacitor C103 is connected between the connecting node TP101 and the ground terminal; the capacitor C105 is connected between the connecting node TP101 and the ground terminal; the cathode of the schottky diode D102 is connected to the connection node TP101, and the anode thereof is grounded; the cathode of the schottky diode D101 is connected to the connection node TP101, and the anode thereof is grounded; the connection node TP101 is connected to the output of the input protection and filter circuit (or the input Vin of the control circuit 110).

The voltage stabilizing filter unit 246 comprises a bidirectional voltage stabilizing diode D103 and a capacitor C100, wherein the bidirectional voltage stabilizing diode D103 is connected between the vehicle-mounted direct current input power supply VBAT and the ground terminal; the capacitor C100 is connected between the vehicle dc input power VBAT and the ground terminal.

In summary, the chip based on the Ying Fei Ling adopts one CCG7D chip to control PD & DP, realizes that the maximum single-port output support of 60W is realized, and the two ports simultaneously output and the sum support of 87W for high-power charging, and simultaneously can provide an efficient audio and video transmission function, so that copilot and back passengers experience the pleasure of mobile phone vehicle-mounted screen throwing, and not only can realize efficient data communication, but also can solve the trouble that vast friends can not use mobile phones when driving.

It should be noted that any modifications to the specific embodiments of the utility model may be made by those skilled in the art without departing from the scope of the utility model as defined in the appended claims. Accordingly, the scope of the claims of the present utility model is not limited to the foregoing detailed description.

Claims

1. The vehicle-mounted high-power charging module supporting USB data and video DP data is characterized by comprising a control circuit, an HMTD interface, a video data converter, a hub controller, a first multiplexer, a second multiplexer, an uplink USB interface, a first downlink USB interface and a second downlink USB interface,

the control circuit carries out direct current-direct current conversion on a vehicle-mounted direct current input power supply VBAT received by an input end Vin of the control circuit to obtain first direct current power supplies 0-VBUS provided for the first downlink USB interface and/or second direct current power supplies 1-VBUS provided for the second downlink USB interface;

the video data converter converts video data from the HMTD interface based on the control of the control circuit to obtain video DP data and provides the video DP data to the first multiplexer and/or the second multiplexer;

the hub controller provides the USB data from the upstream USB interface to the first multiplexer and/or the second multiplexer based on the control of the control circuit, and provides the USB data from the first multiplexer and/or the second multiplexer to the upstream USB interface;

the first multiplexer switches the USB data provided by the hub controller or the video DP data provided by the video data converter to the first downlink USB interface based on the control of the control circuit;

the second multiplexer switches the USB data provided by the hub controller or the video DP data provided by the video data converter to the second downstream USB interface based on the control of the control circuit,

the control circuit comprises a CCG7D chip,

the CCG7D chip is communicatively coupled to the video data converter, the hub controller, the first multiplexer and the second multiplexer,

the CCG7D chip performs direct current-direct current conversion on the vehicle-mounted direct current input power supply VBAT received by the input end Vin thereof based on a PD charging protocol to obtain first direct current power supplies 0-VBUS provided for the first downlink USB interface and/or second direct current power supplies 1-VBUS provided for the second downlink USB interface,

when only the first downlink USB interface is connected with equipment to be charged, the CCG7D chip controls the first downlink USB interface to provide the maximum charging power of 60W;

when only the second downlink USB interface is connected with equipment to be charged, the CCG7D chip controls the second downlink USB interface to provide charging power of 27W at maximum;

when the first downlink USB interface and the second downlink USB interface are both connected with the equipment to be charged, the first downlink USB interface provides the maximum charging power of 60W, and meanwhile, the second downlink USB interface is controlled to provide the maximum charging power of 27W.

2. The vehicle-mounted high-power charging module supporting USB data and video DP data according to claim 1, wherein,

the up pins RIN0+/RIN 0-and RIN1+/RIN 1-of the video data converter are connected with the HMTD interface, the down pin 0_HPD of the video data converter is connected with the pin corresponding to the CCG7D chip and the up pin corresponding to the first multiplexer, the down pin 0_AUX+/AUX-of the video data converter is connected with the up pin corresponding to the first multiplexer, the down pin 0_DP 4Lane of the video data converter is connected with the up pin corresponding to the first multiplexer, the down pin 1_HPD of the video data converter is connected with the pin corresponding to the CCG7D chip and the up pin corresponding to the second multiplexer, the down pin 1_AUX+/AUX-of the video data converter is connected with the up pin corresponding to the second multiplexer, and the down pin 1_DP 4Lane of the video data converter is connected with the up pin corresponding to the second multiplexer.

3. The vehicle-mounted high-power charging module supporting USB data and video DP data according to claim 2, wherein,

the first downlink USB interface is a Type-C interface, a pin 0_CC of the first downlink USB interface is connected with a pin corresponding to the CCG7D chip, a pin 0_D +/D-of the first downlink USB interface is connected with a downlink pin corresponding to the hub controller, a pin 0-VBUS of the first downlink USB interface is connected with a pin corresponding to the control circuit, a pin 0-SUB1/2 of the first downlink USB interface is connected with a downlink pin corresponding to the first multiplexer, and a pin 0_TX/0_RX of the first downlink USB interface is connected with a downlink pin corresponding to the first multiplexer;

the second downlink USB interface is a Type-C interface, a pin 1_CC of the second downlink USB interface is connected with a pin corresponding to the CCG7D chip, a pin 1_D+/D-of the second downlink USB interface is connected with a downlink pin corresponding to the hub controller, a pin 1-VBUS of the second downlink USB interface is connected with a pin corresponding to the control circuit, a pin 1-SUB1/2 of the second downlink USB interface is connected with a downlink pin corresponding to the second multiplexer, and a pin 1_TX/1_RX of the second downlink USB interface is connected with a downlink pin corresponding to the second multiplexer;

the uplink USB interface is a Type-C interface, a pin VBUS_UP of the uplink USB interface is connected with an uplink pin corresponding to the hub controller, a pin D+/D-of the uplink USB interface is connected with an uplink pin corresponding to the hub controller, a pin CC1 of the uplink USB interface is connected with an uplink pin corresponding to the hub controller, and a pin TX/RX of the uplink USB interface is connected with an uplink pin corresponding to the hub controller;

the downlink pin 0_TX/RX of the hub controller is connected with the uplink pin corresponding to the first multiplexer, the downlink pin 1_TX/RX of the hub controller is connected with the uplink pin corresponding to the second multiplexer, and the downlink pin 0_CC1_P of the hub controller is grounded through a resistor.

4. The vehicle-mounted high-power charging module supporting USB data and video DP data according to claim 3, further comprising an SD card control circuit,

the descending port of the SD card control circuit is used for being connected with the SD card, and the pin D+/D-of the ascending port of the descending port is connected with the hub controller;

and the SD card sequentially performs data interaction with the vehicle machine through the SD card control circuit, the hub controller and the uplink USB interface.

5. The vehicle-mounted high-power USB data and video DP data supported charging module as set forth in claim 4, wherein,

the video data converter comprises DS90UH984WRURTQ1 and peripheral circuits thereof;

the SD card control circuit comprises a USX chip and a peripheral circuit thereof, wherein a downlink port of the USX chip and a PIN pair PIN of the SD card are designed, an uplink port of the SD card is a USB2.0 interface, and the USB2.0 interface is directly connected to the hub controller;

the HUB Controller comprises a HUB Controller chip and peripheral circuits thereof;

the first multiplexer comprises a MUX chip and peripheral circuits thereof;

the second multiplexer includes a MUX chip and peripheral circuits thereof.

6. The vehicle-mounted high-power charging module supporting USB data and video DP data according to claim 1, further comprising a thermal protection circuit,

the thermal protection circuit comprises a resistor R902, a thermistor TH901 and a capacitor C910, wherein the resistor R902 is connected between a power supply end VDDD and a connection node TP 913; the thermistor TH901 is connected between the connecting node TP913 and the ground terminal; the capacitor C910 is connected between the connection node TP913 and the ground terminal; the voltage of the connection node TP913 is a thermal resistor voltage ntc_1, which reflects the ambient temperature of the thermal protection circuit, and the thermal resistor voltage ntc_1 is correspondingly de-rated by calculation.

7. The vehicle-mounted high-power USB data and video DP data enabled charging module as set forth in claim 4, further comprising a power rail circuit,

the power rail circuit adopts a two-stage power supply mode based on the vehicle-mounted direct current input power supply VBAT to supply power for the video data converter, the hub controller, the first multiplexer, the second multiplexer and the SD card control circuit.

8. The vehicle-mounted high-power USB data and video DP data supported charging module according to any one of claims 1-7, further comprising an input interface,

the power pin of the input interface is used for providing the vehicle-mounted direct current input power supply VBAT, and the grounding pin of the input interface is grounded.

9. The vehicle-mounted high-power charging module supporting USB data and video DP data according to any one of claims 1-7, further comprising an input protection and filter circuit comprising:

the input anti-reverse protection unit comprises a PMOS tube Q100, a PMOS tube Q101, a voltage stabilizing diode D100 and a resistor R101, wherein the source electrode of the PMOS tube Q100 is connected with a vehicle-mounted direct current input power supply VBAT, the grid electrode of the PMOS tube Q100 is connected with a connecting node TP103, and the drain electrode of the PMOS tube Q100 is connected with the connecting node TP 100; the source electrode of the PMOS tube Q101 is connected with a vehicle-mounted direct current input power supply VBAT, the grid electrode of the PMOS tube Q101 is connected with a connecting node TP103, and the drain electrode of the PMOS tube Q101 is connected with a connecting node TP 100; one end of the resistor R101 is connected with the connecting node TP103, and the other end of the resistor R is grounded; the positive electrode of the voltage stabilizing diode D100 is connected with the connecting node TP103, and the negative electrode of the voltage stabilizing diode D100 is connected with the connecting node TP 100;

the filtering unit comprises a capacitor C101, a capacitor C102, a capacitor C103, a capacitor C104, a capacitor C105, a Schottky diode D101, a Schottky diode D102 and an inductor L100, wherein the capacitor C101 is connected between a connecting node TP100 and a grounding terminal; the capacitor C102 is connected between the connecting node TP100 and the ground terminal; the inductor L100 is connected between the connecting node TP100 and the connecting node TP 101; the capacitor C104 is connected between the connecting node TP101 and the ground terminal; the capacitor C103 is connected between the connecting node TP101 and the ground terminal; the capacitor C105 is connected between the connecting node TP101 and the ground terminal; the cathode of the Schottky diode D102 is connected with the connecting node TP101, and the anode of the Schottky diode D is grounded; the cathode of the Schottky diode D101 is connected with the connecting node TP101, and the anode of the Schottky diode D101 is grounded; the connecting node TP101 is connected with the output end of the input protection and filtering circuit;

the voltage stabilizing filter unit comprises a bidirectional voltage stabilizing diode D103 and a capacitor C100, wherein the bidirectional voltage stabilizing diode D103 is connected between a vehicle-mounted direct current input power supply VBAT and a grounding end; the capacitor C100 is connected between the vehicle-mounted dc input power VBAT and the ground terminal.