CN217904525U - Signal converter, docking station and electronic equipment - Google Patents
Signal converter, docking station and electronic equipment Download PDFInfo
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Abstract
The application belongs to the technical field of docking stations, and relates to a signal converter, a docking station and electronic equipment, wherein a video display chip is connected with a video display interface; the protocol chip is connected with the video display chip; the HUB control chip is respectively connected with the video display chip and the protocol chip; the plurality of selector switch chips are connected with the HUB control chip; the first USB-A interface is connected with the HUB control chip; the first USB-C interface is connected with the protocol chip, the HUB control chip and the video display chip and supplies power to the protocol chip, the HUB control chip and the video display chip; the plurality of second USB-C interfaces are respectively connected with the plurality of selector switch chips one by one, so that signal transmission between a computer and external equipment is realized through the plurality of expansion interfaces, the first USB-C interface supports quick charging, the plurality of selector switch chips are arranged to control the number of the connected interfaces, and the problem that the conventional docking station cannot meet the requirements of users on high-speed data transmission and ultra-high-definition image display at the same time is solved.
Description
Technical Field
The application belongs to the technical field of docking stations, and particularly relates to a signal converter, a docking station and an electronic device.
Background
In recent years, apple Inc. has introduced MacBook Air/Pro 13/Mac mini of M1 chip to support the functions of lightning 4 and USB 4. Subsequently, computers compatible with USB4 functions are also released by brands such as dell and hewlett packard, and more devices supporting USB4 are increasing, and as of 9 months in 2021, more than 60 models of notebook computers supporting USB4 are sold on the market. The USB4 supports maximum 7680X 4320P/60HZ ultra-high definition image output display, supports dynamic and static HDRs, is compatible with USB3.2/3.1/3.0/2.0 and ultra-high speed 40Gbps. In match with the above, the performance requirements of users on upstream and downstream devices are also increasing, and great experiences of higher definition, higher speed and higher power are desired.
Therefore, the market needs a product video docking station with complete functions and multiple compatible functional interfaces, so that the problem that the existing docking station cannot meet the requirements of users on high-speed data transmission and ultrahigh-definition image display at the same time is solved.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a signal converter, a docking station and electronic equipment, and aims to solve the problem that the existing docking station cannot meet the requirements of users on high-speed data transmission and ultrahigh-definition image display at the same time.
A first aspect of embodiments of the present application provides a signal converter, including:
a video display interface;
the video display chip is connected with the video display interface;
the protocol chip is connected with the video display chip;
the HUB control chip is respectively connected with the video display chip and the protocol chip;
the plurality of selector switch chips are connected with the HUB control chip;
the first USB-A interface is connected with the HUB control chip;
the first USB-C interface is connected with the protocol chip, the HUB control chip and the video display chip and used for supplying power to the protocol chip, the HUB control chip and the video display chip;
and the plurality of second USB-C interfaces are respectively connected with the plurality of selector switch chips.
In one embodiment, the signal converter further comprises:
the network card chip is connected with the HUB control chip;
and the network interface is connected with the network card chip.
In one embodiment, the signal converter further comprises:
the PD interface is used for accessing a power input signal;
and the power management module is connected with the PD interface and the first USB-C interface and used for performing voltage conversion processing on the power input signal to generate a power supply signal and outputting the power supply signal to the first USB-C interface.
In one embodiment, the HUB control chip includes a USB4 signal conversion unit and a DP display unit.
In one embodiment, the protocol chip includes: PD3.0 power supply unit.
In one embodiment, the video display chip is a DP2.0 switching HDMI2.1 high definition video display unit.
In one embodiment, the power management module comprises:
the switching unit is connected with the PD interface and used for receiving the power input signal and outputting the power input signal according to a power control signal;
and the voltage conversion unit is connected with the switch unit and used for receiving the power input signal, performing voltage conversion processing on the power input signal and generating the power supply signal.
In one embodiment, the power management module further comprises:
the first filtering unit is arranged between the switch unit and the voltage conversion unit and is used for filtering the power input signal;
and the second filtering unit is connected with the voltage conversion unit and is used for filtering the power supply signal of the power supply.
A second aspect of the embodiments of the present application provides a docking station, including a docking station body, further including a signal converter as described in any one of the above; wherein the signal converter is disposed within the docking station body.
A third aspect of embodiments of the present application provides an electronic device, comprising a signal converter as described in any one of the above.
Compared with the prior art, the embodiment of the application has the advantages that: the video display chip is connected with the video display interface; the protocol chip is connected with the video display chip; the HUB control chip is respectively connected with the video display chip and the protocol chip; the plurality of selector switch chips are connected with the HUB control chip; the first USB-A interface is connected with the HUB control chip; the first USB-C interface is connected with the protocol chip, the HUB control chip and the video display chip, and supplies power to the protocol chip, the HUB control chip and the video display chip; and the plurality of second USB-C interfaces are respectively connected with the plurality of selector switch chips one by one, so that the signal transmission between the computer and the external equipment is realized by the plurality of expansion interfaces, furthermore, the first USB-C interface supports quick charging, and the plurality of selector switch chips are arranged to control the number of the connected interfaces, thereby solving the problem that the conventional docking station cannot meet the requirements of users on high-speed data transmission and ultra-high definition image display at the same time.
Drawings
FIG. 1 is a schematic diagram of a signal converter according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a signal converter according to another embodiment of the present application;
FIG. 3 is ase:Sub>A schematic diagram of an external USB-A interface device according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a second USB-C interface according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a signal converter according to an embodiment of the present application;
fig. 6 is a schematic diagram of a network card chip according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a signal converter according to another embodiment of the present application;
fig. 8 is a schematic circuit diagram of a switch unit according to an embodiment of the present application;
fig. 9 is a schematic circuit diagram of a voltage converting unit according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In addition, in the case of the present invention, the terms "first", "are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "first," may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In recent years, apple Inc. introduced MacBook Air/Pro 13/Mac mini of M1 chip, which supports the functions of lightning 4 and USB4 (Universal Serial Bus 4). Subsequently, computers compatible with the USB4 function are also released by brands such as dell and hewlett packard, and more devices supporting the USB4 are available, and as for 9 months in 2021, more than 60 types of notebook computers supporting the USB4 are sold on the market. The USB4 supports maximum 7680 × 4320P/60HZ ultra-high definition image output display, supports dynamic and static HDRs, is downward compatible with USB3.2/3.1/3.0/2.0 and is ultra high speed 40Gbps. In match with the above, the performance requirements of users on upstream and downstream devices are also increased, and great experiences of higher definition, higher speed and higher power are required.
At present, the HUB (HUB) or the DOCK supporting the USB4 function in the market mainly takes thunder 4DOCK as a main part, but the thunder 4DOCK is expensive in price and higher in cost performance, and can obtain the favor of more users. Large screens are a developing trend of display devices because they can provide a wider field of view; the clearness is also a goal of display devices, as more realistic and shocking pictures can be brought about. And 8K has both large screen and ultra-definition, and is the inevitable trend of future video display.
Therefore, the market needs a product video docking station with complete functions and multiple compatible functional interfaces, so that the problem that the existing docking station cannot meet the requirements of users on high-speed data transmission and ultrahigh-definition image display at the same time is solved.
In order to solve the above technical problem, referring to fig. 1, an embodiment of the present application provides a signal converter, including: the USB interface comprises ase:Sub>A video display interface 10, ase:Sub>A video display chip 20, ase:Sub>A protocol chip 30, ase:Sub>A HUB control chip 40, ase:Sub>A plurality of selector switch chips 50, ase:Sub>A first USB-A interface 60, ase:Sub>A first USB-C interface 70 and ase:Sub>A plurality of second USB-C interfaces 80.
Specifically, the video display chip 20 is connected to the video display interface 10; the protocol chip 30 is connected with the video display chip 20; the HUB control chip 40 is respectively connected with the video display chip 20 and the protocol chip 30; the plurality of selector switch chips 50 are connected to the HUB control chip 40; the first USB-ase:Sub>A interface 60 is connected to the HUB control chip 40; the first USB-C interface 70 is connected to the protocol chip 30, the HUB control chip 40, and the video display chip 20, and the first USB-C interface 70 is used to supply power to the protocol chip 30, the HUB control chip 40, and the video display chip 20; the plurality of second USB-C interfaces 80 are respectively connected to the plurality of selector switch chips 50.
In the present embodiment, the video display chip 20 is connected to the video display interface 10, the protocol chip 30 is connected to the video display chip 20, and the protocol chip 30 is further connected to the computer. The video display Interface 10 is used to connect an external video display, such as an HDMI (High Definition Multimedia Interface) display. When the external HDMI display is connected, the HDMI display sends the identification information to the video display chip 20, the video display chip 20 sends the identification information to the protocol chip 30, the protocol chip 30 communicates with the computer, and the computer sends corresponding resolution and audio signals to the video display according to the display requirements after receiving the identification information of the display, so as to be used by the video display. Wherein, the identity information of the HDMI display includes: header files, display manufacturer/crystal production identification codes, product serial numbers, basic display parameters, video signal format detail data, display working frequency range limitation data and other information. In the embodiment, by arranging the video display chip 20 and the video display interface 10, the problem of the requirement of ultra-high definition image display of the user can be solved.
In the present embodiment, the HUB control chip 40 is connected to the video display chip 20 and the protocol chip 30, respectively, and the first USB-ase:Sub>A interface 60 is connected to the HUB control chip 40. When an external device is plugged into the first USB-ase:Sub>A interface 60, PID (Process Identification, process id) information of the external device communicates with the computer through the HUB control chip 40. Specifically, it can be understood that the HUB control chip 40 is connected to the computer, the first USB-ase:Sub>A interface 60 is connected to the computer through the HUB control chip 40, the first USB-ase:Sub>A interface 60 is used for receiving the datase:Sub>A signal of the external device and outputting the datase:Sub>A signal to the computer through the HUB control chip 40, the computer simultaneously sends the feedback signal to the HUB control chip 40, and the HUB control chip 40 sends the feedback signal to the external device through the first USB-ase:Sub>A interface 60.
In the present embodiment, a plurality of the changeover switch chips 50 are connected to the HUB control chip 40; the plurality of second USB-C interfaces 80 are respectively connected to the plurality of selector switch chips 50. Specifically, the plurality of second USB-C interfaces 80 are respectively connected to the computer through the plurality of switch chips 50 and the HUB control chip 40, for example, when an external USB-C interface device is connected to the second USB-C interface 80, the switch chip 50 correspondingly connected to the second USB-C interface 80 can detect that the corresponding second USB-C interface 80 is connected to an external device, the switch chip 50 transmits device information data of the external device to the HUB control chip 40, the HUB control chip 40 outputs the device information data of the external device to the computer, the computer recognizes and releases a corresponding connection signal to the HUB control chip 40, the b control chip 40 is mainly used for signal interaction between the second USB-C interface 80 and the computer, that is, outputs a data signal of the second USB-C interface 80 to the computer, and simultaneously outputs a corresponding data signal sent by the computer to the corresponding external device connected to the second USB-C interface 80.
In this embodiment, the plurality of second USB-C interfaces 80 are respectively connected to the plurality of switch chips 50, it can be understood that the plurality of second USB-C interfaces 80 may be connected to a plurality of external devices at the same time, or only one of the plurality of second USB-C interfaces 80 may be connected to an external device, and the plurality of switch chips 50 are connected to the plurality of second USB-C interfaces 80 in a one-to-one correspondence.
In the embodiment, the first USB-C interface 70 is connected to the protocol chip 30, the HUB control chip 40 and the video display chip 20, and the first USB-C interface 70 is used for supplying power to the protocol chip 30, the HUB control chip 40 and the video display chip 20. Specifically, the first USB-C interface 70 is configured to receive a power supply signal and supply power to the protocol chip 30, the HUB control chip 40, and the video display chip 20 according to the power supply signal.
In one embodiment, as shown with reference to fig. 2, the signal converter further includes: a network card chip 90 and a network interface 100.
Specifically, the network card chip 90 is connected to the HUB control chip 40; the network interface 100 is connected to the network card chip 90. In this embodiment, the network interface 100 detects whether to connect a network device, after the network interface 100 detects that the network device is connected, the network card chip 90 is connected to the network interface 100 for network signal transmission, the network card chip 90 is connected to the computer through the HUB control chip 40 for network signal transmission, so that the computer can be connected to a network, wherein the network card chip 90 supports maximum 2.5GB network signal transmission, network signal transmission such as 1000M/100M/10M is downward compatible, the internet speed of a user is greatly accelerated, and user experience is improved.
In one embodiment, as shown with reference to fig. 2, the signal converter further includes: PD interface 110 and power management module 120.
Specifically, the PD interface 110 is used for accessing a power input signal; and the power management module 120 is connected to the PD interface 110 and the first USB-C interface 70, and configured to perform voltage conversion processing on the power input signal to generate a power supply signal, and output the power supply signal to the first USB-C interface 70. In this embodiment, when the PD interface 110 accesses the power input signal, the power management module 120 performs voltage conversion processing on the power input signal to generate a power supply signal, and the first USB-C interface 70 supplies power to the protocol chip 30, the HUB control chip 40, and the video display chip 20 after receiving the power supply signal, so as to provide a guarantee for normal operation of the protocol chip 30, the HUB control chip 40, and the video display chip 20.
In one embodiment, as shown with reference to fig. 3, the HUB control chip 40 includes a USB4 signal conversion unit and a DP display unit. The HUB control chip 40 supports the full 40Gbps bandwidth of USB4 and provides USB3.2 × 4 10G downstream data and DisplayPort functions with input and output. Specifically, the first USB-ase:Sub>A interface 60 is connected to the HUB control chip 40. In this embodiment, when the external USB-ase:Sub>A interface device is inserted into the first USB-ase:Sub>A interface 60, the pin D-and pin D + of the external USB-ase:Sub>A interface device transmit signals to the HUB control chip 40, the computer detects PID information of the external USB-ase:Sub>A interface device, determines the type of the external USB-ase:Sub>A interface device, communicates with the signal type required by the external USB-ase:Sub>A interface device to perform datase:Sub>A information transmission and exchange, receives the datase:Sub>A signals transmitted by the external USB-ase:Sub>A interface device through the external USB-ase:Sub>A interface pins SSTX-, and pin SSTX +, and transmits datase:Sub>A signals to the external USB-ase:Sub>A interface device through the pin SSRX-, and pin SSRX +. When VL830 detects that both transmission and reception are possible, it determines that the first USB-ase:Sub>A interface 60 is connected to an external USB-ase:Sub>A interface device. Then, the data is transmitted and received to the computer at high speed through the bridging function of the HUB control chip 40, the GEN210GB can be supported, and the data transmission bandwidth is downward compatible with USB3.1/3.0/2.0/1.0. In addition, when the external USB-A interface device needs to be charged, ase:Sub>A charging signal is sent to the HUB control chip 40 through the second pin D-and the third pin D +, the first USB-A interface 60 simultaneously supports the CDP mode to open the downlink device for maximum 5V and 1.5A quick charging, and datase:Sub>A transmission can be carried out while charging.
In this embodiment, the protocol chip 30 includes: the PD3.0 power supply unit, the protocol chip 30 support DP display unit full function mode, and the PD3.0 power supply unit provides the electric quantity for USB-C.
In one embodiment, the video display chip 20 converts the HDMI2.1 high definition video display unit to DP 2.0. The video display chip 20 supports DisplayPort 2.0 to HDMI2.1 to support 8K display. Specifically, when the external HDMI display is connected, the HDMI display sends the identification information to the video display chip 20, the video display chip 20 sends the identification information to the protocol chip 30, the protocol chip 30 communicates with the computer, and the computer receives the identification information of the HDMI display and sends the corresponding resolution and audio signal to the video display according to the requirement of the HDMI display, so as to be used by the video display. Wherein, the identity information of HDMI display includes: header files, display manufacturer/crystal production identification codes, product serial numbers, basic display parameters, video signal format detail data, display working frequency range limiting data and the like.
In one embodiment, as shown with reference to FIG. 4, the switcher chip 50 is a USB Type-C switch support CC protocol chip. Specifically, the plurality of second USB-C interfaces 80 are respectively connected to the plurality of diverter switch chips 50 in a one-to-one correspondence manner, when an external USB-C interface device is connected to the second USB-C interface 80, the diverter switch chip 50 correspondingly connected to the second USB-C interface 80 can detect that the corresponding second USB-C interface 80 is connected to an external device, and then transmit device information data to the diverter switch chip 50 through pins A5 and B5, the diverter switch chip 50 simultaneously transmits the device information data to a computer through the HUB control chip 40, and the computer detects the received device information data and determines the type of the USB device. And then communicate with the signal type needed by the external equipment to transmit and exchange data information. And then, data signals sent by the equipment of the external USB-C interface are received through pins SSTX and SSTX of the second USB-C interface 80, and the data signals are sent for the equipment of the external USB-C interface through pins SSRX and SSRX. When the HUB control chip 40 detects that the USB device can both transmit and receive, it determines that the second USB-C interface 80 is connected to an external USB-C interface device. Then, the high-speed data transmission and reception are carried out to the computer through the bridging function of the HUB control chip 40, and the transmission bandwidth can be supported to be GEN2 GB 10GB.
In one embodiment, referring to fig. 5, the model of the network card chip 90 is a 2.5G network card, and the network interface 100 is an RJ45.
Specifically, the RJ45 detects whether the network device is connected, when the RJ45 detects that the network device is connected, the network card chip 90 is connected to the network interface 100, the network card chip 90 receives signals and transmits data to the RJ45 through the first pin LANWAKEB, the second pin GPI, the fourth pin VDDREG, the fifth pin enscreg, the sixth pin REG _ OUT, the seventh pin DVDD09, the ninth pin AVDD33, and the tenth pin AVDD33_ XTAL, and the network card chip 90 is connected to the computer through the forty-third pin U3SSTXP, the forty-fourth pin U3SSTXN, the forty-sixth pin U3SSRXP, the forty-seventh pin U3 ssn, the forty-ninth pin rxu 2DM, and the fifty-fourth pin U2DP bridge VL830, so that the computer is connected to the network, supports maximum 2.5GB network data transmission, and is compatible with 1000M/100M/10M.
In one embodiment, as shown with reference to FIG. 6, the power management module 120 includes: a switching unit 121 and a voltage converting unit 122.
Specifically, the switch unit 121 is connected to the PD interface 110, and the switch unit 121 is configured to receive a power input signal and output the power input signal according to a power control signal; the voltage conversion unit 122 is connected to the switch unit 121, and the voltage conversion unit 122 is configured to receive a power input signal, perform voltage conversion processing on the power input signal, and generate a power supply signal.
In this embodiment, the switch unit 121 is configured to output a power input signal according to a power control signal, where the power control signal is sent by the protocol chip 30, for example, the protocol chip 30 may detect whether the PD interface 110 is connected to the power input signal in real time, and output the power control signal after detecting that the PD interface 110 is connected to the power input signal, the switch unit 121 is configured to output the power input signal according to the power control signal, the voltage conversion unit 122 performs voltage conversion processing on the power input signal to generate a power supply signal, the first USB-C interface 70 receives the power supply signal and then supplies power to the protocol chip 30, the HUB control chip 40, and the video display chip 20, so as to provide a guarantee for normal operations of the protocol chip 30, the HUB control chip 40, and the video display chip 20.
In one embodiment, the power management module 120 further comprises: a first filtering unit and a second filtering unit.
Specifically, the first filtering unit is disposed between the switching unit 121 and the voltage converting unit 122, and is configured to perform filtering processing on the power input signal; and the second filtering unit is connected with the voltage conversion unit 122 and is used for filtering the power supply signal.
In this embodiment, after the protocol chip 30 detects that the PD interface 110 is connected to the power input, a power control signal is output, the switch unit 121 outputs the power input signal according to the power control signal, the first filtering unit is configured to perform filtering processing on the power input signal, the voltage conversion unit 122 performs voltage conversion processing on the filtered power input signal to generate a power supply signal, and the second filtering unit performs filtering processing on the power supply signal, so as to supply power to the protocol chip 30, the HUB control chip 40, and the video display chip 20 with the filtered power supply signal.
In one embodiment, referring to fig. 7, the switch unit 121 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first capacitor C1, a second capacitor C2, a first switch tube Q1, a second switch tube Q2, a third switch tube Q3, and a fourth switch tube Q4. Specifically, a first end of a first resistor R1 and a control end of a first switching tube Q1 are commonly connected to the protocol chip 30, a second end of the first resistor R1 is grounded, a first end of the first switching tube Q1 is grounded, a second end of the first switching tube Q1 is connected in series with a second resistor R2, a second end of the third switching tube Q3 is connected to the control end of the second switching tube Q2, a fourth resistor R4 is connected to a first end of the third resistor R3, a second end of the fourth resistor R4 is connected in series with a first capacitor C1 and then connected to a second end of the third resistor R3, a first end of the second switching tube Q2 is connected to the PD interface 110, a second end of the second switching tube Q2 is connected to a second end of a fourth switching tube Q4, a second end of the second switching tube Q2 is further connected to the voltage conversion unit 122, a first end of the fourth switching tube Q4 is connected to the computer, a first end of an eighth resistor R8 and a first end of the third switching tube Q3 are commonly connected to the protocol chip 30, a second end of the second switching tube Q3, a second end of the sixth resistor R6 is connected in series with a second resistor R6, a second end of the fifth resistor R6 is connected to the control end of the fifth switching tube R6 and then connected to the second resistor R6.
In this embodiment, when the protocol chip 30 detects that the PD interface 110 is connected to the power input signal, the protocol chip 30 outputs a power control signal to control the first switch tube Q1 and the second switch tube Q2 to be turned on, and the protocol chip 30 outputs a power control signal to control the third switch tube Q3 and the fourth switch tube Q4 to be turned on, so that the power input signal is output to the voltage conversion unit 122 through the second switch tube Q2, and the power input signal is output to the computer through the fourth switch tube Q4 to charge the computer.
In an embodiment, when the protocol chip 30 does not detect that the PD interface 110 is connected to the power input signal, the protocol chip 30 controls the third switch Q3 and the fourth switch Q4 to be turned on, so that the computer outputs the computer power input signal, and the computer power input signal is output to the voltage conversion unit 122 through the fourth switch Q4.
In one embodiment, referring to fig. 8, the voltage conversion unit 122 includes a voltage conversion chip MP4272, a ninth resistor R9, a tenth resistor R10, and a third capacitor C3. Specifically, a VIN pin of the voltage conversion chip MP4272 is connected to the switch unit 121 and configured to receive a power input signal, a first end of the ninth resistor R9 is connected to the VIN pin of the voltage conversion chip MP4272, a second end of the ninth resistor R9 is connected to an EN pin of the voltage conversion chip MP4272, the EN pin of the voltage conversion chip MP4272 is further connected in series with the tenth resistor R10 and then grounded, a VCC pin of the voltage conversion chip MP4272 is connected in series with the third capacitor C3 and then grounded, a VOUT pin of the voltage conversion chip MP4272 is configured to output a power supply signal, and in one embodiment, the power supply signal is 5V.
In one embodiment, as shown with reference to fig. 9, the first filtering unit includes: a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, and a ninth capacitor C9. Specifically, the first end of the fourth capacitor C4, the first end of the fifth capacitor C5, the first end of the sixth capacitor C6, the first end of the seventh capacitor C7, the first end of the eighth capacitor C8, and the first end of the ninth capacitor C9 are commonly connected to the switch unit 121, and the second end of the fourth capacitor C4, the second end of the fifth capacitor C5, the second end of the sixth capacitor C6, the second end of the seventh capacitor C7, the second end of the eighth capacitor C8, and the second end of the ninth capacitor C9 are all grounded. The fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the eighth capacitor C8 and the ninth capacitor C9 are used for filtering the power input signal. In one embodiment, the structure of the second filtering unit is the same as the structure of the first filtering unit.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included in the present application.
Claims (10)
1. A signal converter, characterized in that the signal converter comprises:
a video display interface;
the video display chip is connected with the video display interface;
the protocol chip is connected with the video display chip;
the HUB control chip is respectively connected with the video display chip and the protocol chip;
the plurality of selector switch chips are connected with the HUB control chip;
the first USB-A interface is connected with the HUB control chip;
the first USB-C interface is connected with the protocol chip, the HUB control chip and the video display chip and used for supplying power to the protocol chip, the HUB control chip and the video display chip;
and the plurality of second USB-C interfaces are respectively connected with the plurality of selector switch chips.
2. The signal converter of claim 1, wherein the signal converter further comprises:
the network card chip is connected with the HUB control chip;
and the network interface is connected with the network card chip.
3. The signal converter of claim 1, wherein the signal converter further comprises:
the PD interface is used for accessing a power supply input signal;
and the power management module is connected with the PD interface and the first USB-C interface and is used for performing voltage conversion processing on the power input signal to generate a power supply signal and outputting the power supply signal to the first USB-C interface.
4. The signal converter according to claim 1, wherein the HUB control chip comprises a USB4 signal conversion unit and a DP display unit.
5. The signal converter of claim 1, wherein the protocol chip includes a PD3.0 power supply unit.
6. The signal converter of claim 1, wherein the video display chip is a DP2.0 conversion HDMI2.1 high definition video display unit.
7. The signal converter of claim 3, wherein the power management module comprises:
the switching unit is connected with the PD interface and used for receiving the power input signal and outputting the power input signal according to a power control signal;
and the voltage conversion unit is connected with the switch unit and used for receiving the power input signal, performing voltage conversion processing on the power input signal and generating the power supply signal.
8. The signal converter of claim 7, wherein the power management module further comprises:
the first filtering unit is arranged between the switch unit and the voltage conversion unit and is used for filtering the power input signal;
and the second filtering unit is connected with the voltage conversion unit and is used for filtering the power supply signal of the power supply.
9. A docking station comprising a docking station body, further comprising a signal converter as claimed in any one of claims 1-8; wherein the signal converter is arranged in the docking station body.
10. An electronic device, characterized in that it comprises a signal converter according to any of claims 1-8.
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| CN202221579705.XU CN217904525U (en) | 2022-06-22 | 2022-06-22 | Signal converter, docking station and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116343699A (en) * | 2023-02-16 | 2023-06-27 | 深圳市羿智科技有限公司 | Display screen driving system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116343699A (en) * | 2023-02-16 | 2023-06-27 | 深圳市羿智科技有限公司 | Display screen driving system |
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