CN210377453U - Double TYPE-C interface control circuit - Google Patents
Double TYPE-C interface control circuit Download PDFInfo
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- CN210377453U CN210377453U CN201921971623.8U CN201921971623U CN210377453U CN 210377453 U CN210377453 U CN 210377453U CN 201921971623 U CN201921971623 U CN 201921971623U CN 210377453 U CN210377453 U CN 210377453U
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Abstract
The utility model discloses a double TYPE-C interface control circuit, which comprises two TYPE-C interface control circuits, an MCU chip and a display control circuit, wherein the MCU chip respectively controls the two TYPE-C interface control circuits, and the MCU chip controls the display control circuit; the TYPE-C interface control circuit comprises a first TYPE-C interface, a second TYPE-C interface, a USB switching controller and a USB interface; the first TYPE-C interface and the second TYPE-C interface respectively control the USB interface signal through a USB switching controller; the first TYPE-C interface and the second TYPE-C interface respectively input signals to the display control circuit. The utility model provides a circuit structure is simple, and efficiency is stable safe, can make the miniaturized two TYPE-C interface control circuit of electronic product.
Description
Technical Field
The utility model relates to an electronic product interface circuit especially relates to two TYPE-C interface control circuit.
Background
The display driver board is an interface card which is connected with the host and the display screen and is used for converting output information of the host into information such as characters, graphs and colors and transmitting the information to the display screen for display; the double-TYPE-C interface of the display driving board on the market has a complex structure, a large volume and a high cost for the current electronic product, and cannot be applied to the miniature electronic product.
Chinese patent application No. 201710676997.6, application date: 08 month 09, 2017, published day: 23/01/2018, the patent names are: the utility model provides a two type-c interface arrangement based on intel kabylake platform, this utility model provides a two type-c interface arrangement based on intel kabylake platform, including CPU master control, Thunderbolt master control, be used for high-speed transmission data based on Thunderbolt type-c interface, be used for discerning interface insertion equipment type and power route management's first PD control chip, embedded controller module, be used for discerning interface insertion equipment type and power route management's second PD control chip and have the type-c interface of charging function and data transmission concurrently, wherein, the output of CPU master control respectively with Thunderbolt master control, type-c interface connection, second PD control chip with type-c interface connection. The utility model discloses a beneficial effect is: the method reduces the cost and has higher expansibility while ensuring the transmission of large-capacity data.
Although the above patent document discloses a dual type-c interface device, the utility model has a complicated structure and a high cost, and cannot be applied to small electronic products and cannot meet the market demand.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a circuit structure is simple, low cost, and transmission and control efficiency are stable, safe, can make the miniaturized two TYPE-C interface control circuit of electronic product.
In order to realize the utility model discloses the purpose can take following technical scheme:
a double TYPE-C interface control circuit comprises two TYPE-C interface control circuits, an MCU chip and a display control circuit, wherein the MCU chip respectively controls the two TYPE-C interface control circuits, and controls the display control circuit;
the TYPE-C interface control circuit comprises a first TYPE-C interface, a second TYPE-C interface, a USB switching controller and a USB interface; the first TYPE-C interface and the second TYPE-C interface respectively control the USB interface signals through a USB switching controller; the first TYPE-C interface and the second TYPE-C interface respectively input signals to the display control circuit.
The MCU chip is a chip with the model number FL 7102.
The display control circuit comprises a display chip, wherein the chip is a chip with model number of RTD2556-CG or model number of RTD 2556T-CG.
The USB interface comprises at least two USB interfaces.
The TYPE-C interface is a chip with the model of APTIV or BELDEN.
The utility model has the advantages that: 1) the utility model solves the problems of redundant design and single function of a double TYPE-C interface circuit in the prior art, and has the advantages of simple circuit structure, simpler and more convenient fault treatment and lower maintenance cost; 2) the utility model has more stable and efficient transmission and efficiency, and can meet the market demand; 3) the utility model is more convenient and safer to use; the utility model discloses because simple structure, it is small, can satisfy the demand that miniaturized electronic product used.
Drawings
Fig. 1 is a prior art circuit block diagram of a dual TYPE-C interface control circuit according to an embodiment of the present invention;
fig. 2 is a block diagram of another prior art circuit of a dual TYPE-C interface control circuit according to an embodiment of the present invention;
fig. 3 is a circuit block diagram of a dual TYPE-C interface control circuit according to an embodiment of the present invention;
fig. 4 is another circuit block diagram of the dual TYPE-C interface control circuit according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments of the present invention.
Example 1
Referring to fig. 1, in the prior art, the TYPE-C interface control circuit includes a TYPE-C interface circuit and a power circuit, the TYPE-C interface circuit can only input a video signal, the power circuit is used to supply power, and the video signal needs to be decoded by a positive and negative insertion decoding chip and then transmitted to a display chip; the TYPE-C interface control circuit has single function and unstable signal output.
Referring to fig. 2, in the prior art, a dual TYPE-C interface control circuit is further included, where the circuit includes two TYPE-C interface circuits, the TYPE-C interface circuits may not distinguish between a power supply and a signal device, and a video signal needs to be decoded by two forward and backward insertion decoding chips and then transmitted to a display chip; although the TYPE-C interface circuit outputs stable signals, two decoding chips are used, so that the circuit structure is complex and the cost is increased; the circuit volume becomes large and cannot be used in a small electronic product.
Example 2
Referring to fig. 3 and 4, the dual TYPE-C interface control circuit of the present invention includes two TYPE-C interface control circuits, an MCU chip 4 and a display control circuit 5, wherein the MCU chip 4 controls the two TYPE-C interface control circuits respectively, and the MCU chip 4 controls the display control circuit 5; the display control circuit 5 is used for controlling the display of the display screen 6.
The TYPE-C interface control circuit comprises a first TYPE-C interface 1, a second TYPE-C interface 2, a USB switching controller 3 and a USB interface; the USB interface comprises at least two USB interfaces, including a plurality of USB interfaces such as a USB interface 1, a USB interface 2, a USB interface 3 and the like.
The first TYPE-C interface 1 and the second TYPE-C interface 2 respectively control the USB interface signals through a USB switching controller 3; the first TYPE-C interface 1 and the second TYPE-C interface 2 respectively input signals to the display control circuit 7.
In this embodiment, first TYPE-C interface 1 or second TYPE-C interface 2 can external power supply, after one of them TYPE-C interface received power signal, can pass through MCU chip 4 realizes the power supply to another TYPE-C interface, has realized first TYPE-C interface 1, second TYPE-C interface 2 can blind plug, use more portably.
In this embodiment, the MCU chip is a chip with a model FL 7102.
In this embodiment, the display control circuit includes a display chip, which is a chip with model number of RTD2556-CG or model number of RTD 2556T-CG.
In this embodiment, the first TYPE-C interface 1 and the second TYPE-C interface 2 are chips whose models are respectively APTIV or bedden.
In this embodiment, this MCU chip 4 is listened and is controlled two TYPE-C signal input and give display chip to inform display chip by this MCU chip 4, first TYPE-C interface 1 and the second TYPE-C interface 2 input port is positive and negative to be inserted and inserts information wantonly, and display chip realizes first TYPE-C interface 1, the second TYPE-C interface 2 is positive and negative to be inserted and inserts freely and decode according to communication information.
In this embodiment, the first TYPE-C interface 1 and the second TYPE-C interface 2 are respectively connected to an external device and receive an input signal of the external device, and the first TYPE-C interface 1 and the second TYPE-C interface are respectively connected to a system power supply through the power controller 4; the first TYPE-C interface 1 and the second TYPE-C interface 2 respectively control a plurality of USB interface signals of the USB interface 1, the USB interface 2, the USB interface 3- - -and the like through the USB switching controller 3; the USB interface is used for connecting data connection products such as a keyboard, a mouse and the like, and the USB switching controller 3 is used for controlling input signals of the USB interface.
In this embodiment, the MCU chip 4 is directly interconnected and communicated with the first TYPE-C interface 1, the second TYPE-C interface 2, and the display control circuit 5, and the first TYPE-C interface 1 and the second TYPE-C interface 2 have power input and video input function settings, and when one TYPE-C interface is connected to a power supply and the other TYPE-C interface is connected to a video, the MCU chip switches control dependencies, recognizes an interface with a power input, turns on a power supply function, recognizes an interface with a video input, turns on a video function module, and accurately allows the power supply to supply power to the video device;
the MCU chip 4 identifies the positive and negative signals of the signal source and directly communicates with the display chip 5, and the display chip 5 decodes the corresponding signals after receiving the information; the three-party communication direct connection mode has more timely response and no attenuation; in the practical application process, save the cost, save the circuit diagram design space, make whole circuit volume diminish, the product is competitive more, makes the utility model discloses the circuit can be used to in littleer, thinner electronic product.
In this embodiment, first TYPE-C interface 1, second TYPE-C interface 2 can blind plug, because this first TYPE-C interface 1, second TYPE-C interface 2 incoming signal respectively to this display control circuit 5 are connected, TYPE-C interface signal transmission does not need middle chip, makes signal transmission more stable, and signal transmission and efficiency are higher.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (5)
1. The utility model provides a two TYPE-C interface control circuit which characterized in that: the display control circuit comprises two TYPE-C interface control circuits, an MCU chip and a display control circuit, wherein the MCU chip respectively controls the two TYPE-C interface control circuits and controls the display control circuit;
the TYPE-C interface control circuit comprises a first TYPE-C interface, a second TYPE-C interface, a USB switching controller and a USB interface; the first TYPE-C interface and the second TYPE-C interface respectively control the USB interface signal through a USB switching controller; the first TYPE-C interface and the second TYPE-C interface respectively input signals to the display control circuit.
2. The dual TYPE-C interface control circuit of claim 1, wherein: the MCU chip is a chip with the model number FL 7102.
3. The dual TYPE-C interface control circuit of claim 1, wherein: the display control circuit comprises a display chip, wherein the chip is a chip with model number of RTD2556-CG or model number of RTD 2556T-CG.
4. The dual TYPE-C interface control circuit of claim 1, wherein: the USB interface comprises at least two USB interfaces.
5. The dual TYPE-C interface control circuit of claim 1, wherein: the TYPE-C interface is a chip with the model of APTIV or BELDEN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921971623.8U CN210377453U (en) | 2019-11-15 | 2019-11-15 | Double TYPE-C interface control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921971623.8U CN210377453U (en) | 2019-11-15 | 2019-11-15 | Double TYPE-C interface control circuit |
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| CN210377453U true CN210377453U (en) | 2020-04-21 |
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| CN201921971623.8U Active CN210377453U (en) | 2019-11-15 | 2019-11-15 | Double TYPE-C interface control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088472A (en) * | 2020-06-22 | 2020-12-15 | 广东高普达集团股份有限公司 | Double-interface switching circuit and Type-C concentrator |
| WO2023005969A1 (en) * | 2021-07-27 | 2023-02-02 | 广州视源电子科技股份有限公司 | Power supply circuit and electronic device |
-
2019
- 2019-11-15 CN CN201921971623.8U patent/CN210377453U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088472A (en) * | 2020-06-22 | 2020-12-15 | 广东高普达集团股份有限公司 | Double-interface switching circuit and Type-C concentrator |
| WO2021258255A1 (en) * | 2020-06-22 | 2021-12-30 | 广东高普达集团股份有限公司 | Dual-interface switch circuit and type-c hub |
| CN112088472B (en) * | 2020-06-22 | 2022-04-26 | 广东高普达集团股份有限公司 | Double-interface switching circuit and Type-C concentrator |
| WO2023005969A1 (en) * | 2021-07-27 | 2023-02-02 | 广州视源电子科技股份有限公司 | Power supply circuit and electronic device |
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