CN211742103U

CN211742103U - One drags and has a multi-channel data transmission function's one drags multi-wire rod

Info

Publication number: CN211742103U
Application number: CN201922498459.XU
Authority: CN
Inventors: 何世友; 桂登宇
Original assignee: Shenzhen Beihang Technology Co ltd
Current assignee: Shenzhen Baseus Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-23
Anticipated expiration: 2029-12-31

Abstract

The embodiment of the utility model discloses a drag many wire rods with multichannel data transmission function, this circuit includes: a USB input interface for receiving input data; at least two switch control circuits are connected with the USB input interface; the switch control circuit comprises a power switch circuit and a data switch circuit; the load detection and data reading units are respectively connected with an output interface to finish the output of detection results and data reading; and the main control module is connected with each load detection and data reading unit and each switch control circuit. According to the utility model discloses, can realize that the multichannel interface in one drags many wire rods all has the data transmission function.

Description

One drags and has a multi-channel data transmission function's one drags multi-wire rod

Technical Field

The utility model relates to a data transmission circuit especially relates to a multichannel data output control circuit of USB interface.

Background

The application of the existing USB interface for realizing equipment charging, data transmission and switching equipment is very wide, but the existing switching line is mostly one to two, namely, the mode of one uplink C port and two downlink A ports; or one data line is connected with three data lines, namely, one data line is connected with the uplink port C and three data lines are connected with the downlink port A, the charging mode can be switched only by accessing the equipment state of the uplink port, bidirectional charging is not supported, and data transmission is also unidirectional. To summarize, there are two main ways for data transmission and charging at present: 1) the input and the output of the wire are only one line, so that data transmission and quick charging can be realized, but the wire interface is single and a plurality of wires need to be taken out; 2) one drags many wire rods, generally can only appoint an interface to carry out data transmission, other interfaces can only charge, can not transmit data.

SUMMERY OF THE UTILITY MODEL

The utility model provides a drag many wire rods with multichannel data transmission function, this circuit includes: a USB input interface for receiving input data; at least two switch control circuits are connected with the USB input interface; the switch control circuit comprises a power switch circuit and a data switch circuit;

at least two load detection and data reading units which are respectively connected with at least two switch control circuits and are used for current detection and data reading of corresponding line branches; the load detection and data reading unit is respectively connected with an output interface to finish the output of detection results and data reading;

the main control module is connected with each load detection and data reading unit and each switch control circuit; the main control module comprises a main control IC, and the main control IC is electrically connected with the power switch circuit and the data switch circuit.

In a specific embodiment, the load detection and data reading unit comprises a load identification circuit and a current detection circuit, wherein the load identification circuit is used for detecting the insertion identification of the load; the current detection circuit is used for detecting the output current of each branch.

In a specific embodiment, the master control IC is a programmable IC master control, and realizes free control of the switch control circuit.

In a specific embodiment, the output interfaces are Type-C and MicroUSB respectively.

In a specific embodiment, the output interfaces are Type-C and microsusb respectively, the power control circuit of the output interface Type-C includes a chip Q1, a chip Q2 and a chip Q3, the data output control circuit of the output interface Type-C includes a chip U1, a resistor R5 and a capacitor C1, the power control circuit of the output interface microsusb includes a chip Q4, a chip Q5 and a chip Q6, and the data output control circuit of the output interface microsusb includes a chip U2, a resistor R12, a resistor R14 and a capacitor C4; wherein the chip Q1, the chip Q2, the chip Q3, the chip Q4 and the chip Q5 are PMOS/SOT-23; the chip Q6 is SS 8050/NPN/SOT-23; chip U1 is FSA 550; the resistor R5 and the capacitor C1 are connected between the EN end of the USB-C QC and the GND in parallel; chip U2 is FSA 550; chip U3 is HI 7550-1; one end of the resistor R12 is connected with the EN end of the USB-B-QC, and the other end of the resistor R12 is connected with the chip U2 and the resistor R14; the resistor R14 is connected in parallel with the capacitor C4, one end of the resistor R12 is connected, and the other end of the resistor R14 is connected with GND.

In a specific embodiment, a resistor R25 is connected to the output interface USB-C.

In a specific embodiment, the resistor R24 is connected with USB-B; one ends of the resistor R12 and the resistor R14 are connected with the U2, the other end of the resistor R12 is connected with the USB-B-QC, and the other end of the resistor R14 is connected with GND.

The beneficial effects of the utility model reside in that:

1) the multi-wire rod is internally provided with a multi-port load identification circuit and a data reading circuit, and can identify the multimedia equipment and confirm whether the equipment carries out data transmission or not; in the prior art, a circuit structure with a load identification function for a plurality of wires is not found, and the data transmission condition cannot be detected in real time.

2) The multi-wire is internally provided with a multi-port data control circuit which can be communicated and cut off data transmission; a multi-port output current detection circuit is arranged, whether each path is full of data connection, removal and charging can be judged, and the corresponding output port is closed; this function allows for multi-drop free data transfer and the choice of whether to charge or not.

3) And the switching of more data interfaces can be realized by matching with the IC master control.

The technical scheme firstly solves the problem that different multimedia equipment in the market can only carry out data transmission by being provided with wires with different interfaces; secondly, the defect that the data transmission of multiple ports cannot be realized by one-driving-multiple wires commonly used in the market at present is overcome.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.

Fig. 1 is a block diagram of a system for implementing charging and data transmission by using one-to-many wires according to an embodiment of the present invention;

FIG. 2A is a diagram of a portion of a circuit 1 for implementing the function of a multi-wire material;

FIG. 2B is a partial circuit diagram of the implementation of the function of a multi-wire material;

FIG. 2C is a diagram of a portion of the circuit implementing the function of a multi-wire material;

FIG. 2D is a diagram of a portion of a circuit 4 for implementing the function of a multi-wire material;

FIG. 2E is a partial circuit diagram of the implementation of the function of a multi-wire material;

fig. 2F is a partial circuit diagram 6 for implementing the function of a multi-wire material.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

It should be noted that the terms "comprises" and "comprising" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

As shown in FIG. 1, the embodiment of the utility model discloses a drag many wires with multichannel data transmission function, this circuit includes: the USB input interface is used for receiving input data; n power switch circuits and n data switch circuits; wherein the power switching circuit and the data switching circuit appear in pairs as shown in FIG. 1; for example: the power switch circuit 1 and the data switch circuit 1 form a switch control circuit 1; the power switch circuit 2 and the data switch circuit 2 form a switch control circuit 2; … …, the power switch circuit n and the data switch circuit n form a switch switching circuit n; the load detection and data reading unit comprises a load identification and current detection module and a data reading module; namely, each load identification and current detection module and each data reading module correspond to the corresponding switch control circuit; for example, the load identification and current detection module 1 and the data reading module are connected to the switch control circuit 1 (including the power switch circuit 1 and the data switch circuit 1), and are configured to detect the current of the branch circuit 1 and read data in real time; each load detection and data reading unit is respectively connected with an output interface to finish the output of detection results and data reading; each load detection and data reading unit and each switch control circuit are connected with a main control module and are electrically connected with the main control module.

The following describes the functions implemented by the functional blocks of the circuit:

the USB input circuit: mainly connecting multimedia data output equipment such as a computer;

power supply module (system power supply circuit): after power is extracted from a charger or multimedia equipment and supplied, the LDO is converted into voltage required by the system and is supplied to a main control module and each power utilization module;

the main control module: the main function is to control the disconnection and connection of the power output circuit and the data transmission circuit;

the output interface can be a Type-C interface circuit: mainly comprises a power demand output interface such as a mobile phone, a flat panel and the like;

the output interface can also be a MicroUSB interface: the device mainly comprises a power demand output interface of a mobile phone, a tablet and the like;

a switch switching circuit: the main function is to realize the control of the output power supply and the protocol switch through the control of the master control IC, and the power supply and the protocol output by a certain path can be closed or opened according to the requirement;

the load detection and data reading unit comprises a load identification circuit and a current detection circuit. Wherein:

a load identification circuit: the main function is to be responsible for detecting the insertion identification of the load;

the current detection circuit: the main function is to detect the output current of each port.

In a specific embodiment, the output interfaces are Type-C and microsusb respectively, the power control circuit of the output interface Type-C includes a chip Q1, a chip Q2 and a chip Q3, the data output control circuit includes a chip U1, a resistor R5 and a capacitor C1, the power control circuit of the output interface microsusb includes a chip Q4, a chip Q5 and a chip Q6, and the data output control circuit includes a chip U2, a resistor R12, a resistor R14 and a capacitor C4; wherein the chip Q1, the chip Q2, the chip Q3, the chip Q4 and the chip Q5 are PMOS/SOT-23; the chip Q6 is SS 8050/NPN/SOT-23; chip U1 is FSA 550; the resistor R5 and the capacitor C1 are connected between the EN end of the USB-C QC and the GND in parallel; chip U2 is FSA 550; chip U3 is HI 7550-1; one end of the resistor R12 is connected with the EN end of the USB-B-QC, and the other end of the resistor R12 is connected with the chip U2 and the resistor R14; the resistor R14 is connected in parallel with the capacitor C4, one end of the resistor R12 is connected, and the other end of the resistor R14 is connected with GND.

In a specific embodiment, the R25 is connected with the output interface USB-C.

In a specific embodiment, the R24 is connected with a USB-B; one ends of the R12 and the R14 are connected with the U2, the other end of the R12 is connected with the USB-B-QC, and the other end of the R14 is connected with GND.

Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.

Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled 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 invention.

Claims

1. The utility model provides a drag many wires with multichannel data transmission function which characterized in that, this circuit includes: a USB input interface for receiving input data; at least two switch control circuits are connected with the USB input interface; the switch control circuit comprises a power switch circuit and a data switch circuit;

2. The multi-wire with multi-path data transmission function according to claim 1, wherein the load detection and data reading unit comprises a load identification circuit and a current detection circuit, the load identification circuit is used for detecting the insertion identification of the load; the current detection circuit is used for detecting the output current of each branch.

3. The multi-split wire with multi-channel data transmission function as claimed in claim 1, wherein the master IC is a programmable IC master.

4. The multi-split wire with the multi-path data transmission function according to claim 1, wherein the output interfaces are Type-C and MicroUSB, respectively.

5. The multi-drop wire with the multi-path data transmission function according to claim 1, wherein the output interfaces are Type-C and microsusb, the power control circuit of the output interface Type-C includes a chip Q1, a chip Q2 and a chip Q3, the data output control circuit of the output interface Type-C includes a chip U1, a resistor R5 and a capacitor C1, and the power control circuit of the output interface microsusb includes a chip Q4, a chip Q5 and a chip Q6, the data output control circuit of the output interface microsusb includes a chip U2, a resistor R12, a resistor R14 and a capacitor C4; wherein the chip Q1, the chip Q2, the chip Q3, the chip Q4 and the chip Q5 are PMOS/SOT-23; the chip Q6 is SS 8050/NPN/SOT-23; chip U1 is FSA 550; the resistor R5 and the capacitor C1 are connected between the EN end of the USB-C QC and the GND in parallel; chip U2 is FSA 550; chip U3 is HI 7550-1; one end of the resistor R12 is connected with the EN end of the USB-B-QC, and the other end of the resistor R12 is connected with the chip U2 and the resistor R14; the resistor R14 is connected in parallel with the capacitor C4, one end of the resistor R12 is connected, and the other end of the resistor R14 is connected with GND.

6. The multi-drop wire with multi-path data transmission function of claim 5, wherein the R25 is connected with the output interface USB-C.

7. The multi-split wire with the function of multiplex data transmission according to claim 6, wherein the resistor R24 is connected with USB-B; one end of the resistor R12 and one end of the resistor R14 are connected with the chip U2, the other end of the resistor R12 is connected with the USB-B-QC, and the other end of the resistor R14 is connected with GND.