CN213482870U

CN213482870U - USB interface converter

Info

Publication number: CN213482870U
Application number: CN202022242807.XU
Authority: CN
Inventors: 胡海强
Original assignee: Shenzhen Lianrong Technology Co ltd
Current assignee: Shenzhen Lianrong Technology Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-18
Anticipated expiration: 2030-10-10

Abstract

The utility model is suitable for a USB interface technical field provides a USB interface converter, include: the device comprises a first type interface, an identification module, a conversion module and a second type interface; the first type interface is respectively connected with the identification module and the conversion module; the identification module is also respectively connected with the conversion module, the second type interface and an external power supply; the conversion module is also respectively connected with the second type interface and an external power supply. The utility model discloses a positive and negative of second type interface is judged to the identification module to control conversion module and correctly convey away the USB signal that needs for corresponding second type interface through different pins. Meanwhile, the USB signal of the first type interface can be converted into the USB signal corresponding to the second type interface through the conversion module. And further, signal conversion between the first type interfaces and the second type interfaces of different types is realized so as to adapt to different devices.

Description

USB interface converter

Technical Field

The utility model belongs to the technical field of the USB interface, especially, relate to a USB interface converter.

Background

A converter is a device that converts one signal into another signal. The signal is in the form or carrier of the information present. In automation equipment and automatic control systems, it is common to convert one signal into another compared to a standard or reference quantity in order to link the two types of equipment, and therefore the converter is often an intermediate link between the two pieces of equipment (or devices).

For example, current intelligent terminals are in life and work and become indispensable devices. Especially, with the powerful and development of the functions of the smart phone, the integration level of the interface functions on the smart phone is stronger and stronger, and the existing data interface is not only used for data transmission, but also used for charging.

There are many kinds of data ports on a terminal, the most common is a USB interface, and the performance of the USB interface is increasing. The existing latest generation USB interface is a USB-Type-C interface, which has a slimmer profile, a faster transmission speed (up to 10Gbps), and a stronger power transmission performance (up to 100W). The biggest characteristic of the double-sided pluggable interface of Type-C is that the double-sided insertion of male head is supported, and the convenience of the interface is stronger.

However, the USB Type-C converter can only realize one-to-one conversion, and the function is too single to be used by multiple devices, thereby causing inconvenience to users.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a USB interface converter aims at solving the technical problem who exists among the prior art.

An embodiment of the utility model provides a USB interface converter, include:

the device comprises a first type interface, an identification module, a conversion module and a second type interface;

the first type interface is respectively connected with the identification module and the conversion module;

the identification module is also respectively connected with the conversion module, the second type interface and an external power supply;

the conversion module is also respectively connected with the second type interface and an external power supply.

Still further, still include: a configuration module connected with the identification module.

Still further, the configuration module includes: a resistor R1 and a resistor R3;

one end of the resistor R1 is connected with the external power supply, and the other end of the resistor R1 is respectively connected with one end of the resistor R3 and the identification module;

the other end of the resistor R3 is connected to ground.

Still further, still include: and the power switch module is respectively connected with the first type interface, the identification module and the second type interface.

Furthermore, the power switch module comprises a capacitor C9, a capacitor C10 and a switch tube Q1;

the positive electrode of the capacitor C9 is connected to the first end of the switching tube Q1 and the second type interface, respectively, and the negative electrode of the capacitor C9 is connected to the ground terminal;

a second end of the switching tube Q1 is connected to the first class interface and the positive electrode of the capacitor C10;

the third end of the switching tube Q1 is connected with the identification module;

the negative electrode of the capacitor C10 is connected to the ground terminal.

Still further, the conversion module includes: and converting the chip.

Still further, the conversion module further comprises: a capacitor C1, a capacitor C2, a capacitor C7, and a capacitor C8;

the negative electrode of the capacitor C1 is connected with the conversion chip, and the positive electrode of the capacitor C1 is connected with the transmitting positive electrode end of the first interface;

the negative electrode of the capacitor C2 is connected with the conversion chip, and the positive electrode of the capacitor C2 is connected with the transmitting negative electrode end of the first interface;

the negative electrode of the capacitor C7 is respectively connected with the conversion chip, the negative electrode of the capacitor C8 and the ground terminal, and the positive electrode of the capacitor C7 is respectively connected with the positive electrode of the capacitor C8, the conversion chip and the external power supply.

Still further, the identification module includes an identification chip.

Still further, the identification module further comprises: a capacitor C11, a resistor R2 and a resistor R4;

the positive electrode of the capacitor C11 is respectively connected with the identification chip and an external power supply, and the negative electrode of the capacitor C11 is connected with a ground terminal;

one end of the resistor R2 is connected with the identification chip, and the other end of the resistor R2 is respectively connected with one end of the resistor R4 and an external power supply;

the other end of the resistor R4 is connected with the identification chip.

Furthermore, the first Type of interface is a Type-A interface, and the second Type of interface is a Type-C interface.

The utility model discloses the beneficial effect who reaches: the identification module is used for judging the positive and negative insertion of the second type interface and controlling the conversion module to correctly transmit the required USB signal to the corresponding second type interface through different pins. Meanwhile, the USB signal of the first type interface can be converted into the USB signal corresponding to the second type interface through the conversion module. And further, signal conversion between the first type interfaces and the second type interfaces of different types is realized so as to adapt to different devices.

Drawings

Fig. 1 is a schematic structural diagram of a USB interface converter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another USB interface converter according to an embodiment of the present invention;

fig. 3 is a circuit diagram provided by the identification module in an embodiment of the present invention;

fig. 4 is a circuit diagram provided by the conversion module in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of another USB interface converter according to an embodiment of the present invention;

fig. 6 is a circuit diagram provided by the configuration module according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another USB interface converter according to an embodiment of the present invention;

fig. 8 is a circuit diagram provided by the power switch module in the embodiment of the present invention.

Wherein, 1, a first type interface; 2. an identification module; 3. a conversion module; 4. a second type of interface; 5. a configuration module; 6. and a power switch module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 the invention and are not intended to limit the invention.

The utility model discloses a positive and negative of second type interface is judged to the identification module to control conversion module and correctly convey away the USB signal that needs for corresponding second type interface through different pins. Meanwhile, the USB signal of the first type interface can be converted into the USB signal corresponding to the second type interface through the conversion module. And further, signal conversion between the first type interfaces and the second type interfaces of different types is realized so as to adapt to different devices.

Example one

As shown in fig. 1, fig. 1 is a schematic structural diagram of a USB interface converter according to an embodiment of the present invention.

The USB interface converter comprises a first type interface 1, an identification module 2, a conversion module 3 and a second type interface 4.

The first type interface 1 is connected with the identification module 2 and the conversion module 3 respectively.

The identification module 2 is also connected with the conversion module 3, the second type interface 4 and an external power supply respectively.

The conversion module 3 is also connected with the second type interface 4 and an external power supply respectively.

As shown in fig. 2, fig. 2 is a schematic structural diagram of another USB interface converter according to an embodiment of the present invention. The first Type interface 1 is a Type-A interface USB1, and may be a USB3.0type-A seat. The second Type interface 4 is a Type-C interface USB2, and may be a USB3.0 Type-C socket. The first type interface 1 and the second type interface 4 are different types of interfaces, but the USB signal of the first type interface 1 can be converted into the USB signal of the second type interface 4 through the identification module 2 and the conversion module 3, and the USB signal of the second type interface 4 can also be converted into the USB signal of the first type interface 1, so as to realize the conversion function between the different types of interfaces.

In an embodiment of the present invention, as shown in fig. 3, fig. 3 is a circuit diagram provided by the identification module 2 in an embodiment of the present invention. The identification module 2 includes: the identification chip U2 may further include a capacitor C11, a resistor R2, and a resistor R4. The positive electrode of the capacitor C11 is connected to the identification chip U2 and an external power supply, and the negative electrode of the capacitor C11 is connected to the ground. One end of the resistor R2 is connected to the identification chip U2, and the other end of the resistor R2 is connected to one end of the resistor R4 and an external power supply. The other end of the resistor R4 is connected to the identification chip U2. Above-mentioned external power source is +5V voltage, the embodiment of the utility model provides an external power source is +5V voltage.

More specifically, the specific model of the identification chip U2 may be FL7002-2F0, which may also be referred to as CC Logic chip. The capacitance value of the capacitor C11 may be 0.1 uF. The resistance of the resistor R2 and the resistance of the resistor R4 are both 10K. The positive electrode of the capacitor C11 is specifically connected with the VCC pin of the identification chip U2. One end of the resistor R2 is specifically connected to the CC _ CONN pin of the identification chip U2. The other end of the resistor R4 is specifically connected to the ID pin of the identification chip U2.

The GND pin, the FORCE _ roll pin, the DRP _ ON _ OFF pin, and the EP pin of the identification chip U2 are all connected to ground. The CC1 pin of the identification chip U2 is connected with the CC1 pin of the Type-C interface USB2, and signals transmitted between the two can be represented by a symbol CC 1. The CC2 pin of the identification chip U2 is connected with the CC2 pin of the Type-C interface USB2, and signals transmitted between the two can be represented by a symbol CC 2. The CC1 pin of the identification chip U2 and the CC1 pin of the Type-C interface USB2 are connected with an external interface TP 1. The CC2 pin of the identification chip U2 and the CC2 pin of the Type-C interface USB2 are connected with an external interface TP 2. VCON _ IN of the identification chip U2 is connected to an external power supply.

In the embodiment of the utility model provides an in, above-mentioned identification module 2 for discerning the positive and negative signal of second Type interface 4, specifically through discernment chip U2 to CC1 signal and the CC2 signal of Type-C the inside, discernment Type-C's positive and negative insertion to control conversion module 3, correctly convey away required USB signal through different pins.

In an embodiment of the present invention, as shown in fig. 4, fig. 4 is a circuit diagram provided by the conversion module 3 in an embodiment of the present invention. The conversion module 3 includes: the conversion chip U1 may further include a capacitor C1, a capacitor C2, a capacitor C7, and a capacitor C8. The negative electrode of the capacitor C1 is connected with the conversion chip U1, and the positive electrode of the capacitor C1 is connected with the transmitting positive electrode end of the first interface 1. The negative electrode of the capacitor C2 is connected with the conversion chip U1, and the positive electrode of the capacitor C2 is connected with the transmitting negative electrode end of the first interface 1. The negative electrode of the capacitor C7 is connected to the negative electrodes of the conversion chip U1 and the capacitor C8, and the ground terminal, and the positive electrode of the capacitor C7 is connected to the positive electrode of the capacitor C8, the conversion chip U1, and an external power supply.

More specifically, the conversion chip U1 may have a model FL7201, which may also be referred to as USB3.0switch, and there are three USB3.0 signal pins in total, and one of the two USB signal pins is switched to one of the other two USB signal pins. The capacitance values of the capacitor C1, the capacitor C2, the capacitor C7 and the capacitor C8 are all 0.01 uF. The negative pole of the capacitor C1 is connected with the A0P pin of the conversion chip U1, and the positive pole of the capacitor C1 is specifically connected with the SSTX + pin of the Type-A interface USB 1. The connection between the positive pole of the capacitor C1 and the SSTX + pin of the Type-a interface USB1 can be represented by the symbol TX +. The negative electrode of the capacitor C2 is specifically connected with an AON pin of the conversion chip U1, and the positive electrode of the capacitor C2 is specifically connected with an SSTX-pin of the Type-C interface USB 2. The connection between the positive pole of the capacitor C2 and the SSTX-pin of the Type-a interface USB1 can be denoted by the symbol TX-. The anodes of the capacitor C7 and the capacitor C8 are both connected to the VCC pin of the conversion chip U1, and the cathodes of the capacitor C7 and the capacitor C8 are both connected to the OEN pin of the conversion chip U1.

The SEL pin of the conversion chip U1 is connected to the CC _ CONN pin of the identification chip U2, which may be specifically denoted by the symbol CC _ CONN. The GND pin, the Exposed Pad pin and the OEN pin of the conversion chip U1 are all connected to ground. The A1P pin of the conversion chip U1 is connected to the SSRX + pin of Type-A, which can be represented by the symbol RX +. The A1N pin of the conversion chip U1 is connected to the SSRX + pin of Type-A, which may be denoted by the symbol RX-. The B0P pin, B0N pin, B1P pin, B1N pin, C0P pin, C0N pin, C1P pin, C1N pin of the conversion chip U1 are respectively connected with the SSTXP1 pin, SSTXN1 pin, SSRXP1 pin, SSRXN1 pin, SSTXP2 pin, SSTXN2 pin, SSRXP2 pin, SSRXN2 pin of the Type-C interface USB2, and the correspondences can be represented by symbols C _ TX1P, C _ TX1N, C _ RX1P, C _ RX1N, C _ TX2P, C _ TX2N, C _ RX2P, C _ RX2N, respectively.

In the embodiment of the present invention, the above-mentioned conversion module 3 is used for converting the USB signal transmitted by the identification module 2 or converting the USB signal transmitted by the identification module 2 through different pins and sending the converted signal to the corresponding interface.

The embodiment of the utility model provides an in, judge the positive and negative of second type interface 4 through identification module 2 and insert to control conversion module 3 correctly conveys away the USB signal of needs for corresponding second type interface 4 through different pins. Meanwhile, the conversion module 3 can also convert the USB signal of the first-type interface 1 into a USB signal corresponding to the second-type interface 4. And further, signal conversion between the first-type interfaces 1 and the second-type interfaces 4 of different types is realized so as to adapt to different devices.

Example two

As shown in fig. 5, fig. 5 is a schematic structural diagram of another USB interface converter according to an embodiment of the present invention. The USB interface converter also comprises a configuration module 5, and the configuration module 5 is connected with the identification module 2.

Specifically, as shown in fig. 6, fig. 6 is a circuit diagram provided by the configuration module 5 in the embodiment of the present invention. The configuration module 5 comprises: resistor R1 and resistor R3. One end of the resistor R1 is connected to an external power supply, and the other end of the resistor R1 is connected to one end of the resistor R3 and the identification module 2, respectively. The other end of the resistor R3 is connected to the ground. The resistor R1 and the resistor R3 may be both called configuration resistors, and the specific resistance may be 10K.

More specifically, the connection line connection between the CUR MODE pin of the identification chip U2 in the identification module 2 and the resistor R1 and the resistor R3 may be represented by the symbol CUR MODE.

In the embodiment of the present invention, the operating parameters in the identification chip U2 are set by the resistor R1 and the resistor R2 in the configuration module 5. This allows the identification module 2 to adapt to the circuit for various operating parameters.

EXAMPLE III

Referring to fig. 7, fig. 7 is a schematic structural diagram of another USB interface converter according to an embodiment of the present invention. The USB interface converter also comprises a power switch module which is respectively connected with the first type interface 1, the identification module 2 and the second type interface 4.

Specifically, as shown in fig. 8, fig. 8 is a circuit diagram provided by the power switch module in the embodiment of the present invention. The power switch module comprises a capacitor C9, a capacitor C10 and a switch tube Q1. The positive pole of the capacitor C9 is connected to the first end (the D pole) of the switching tube Q1 and the Type-C interface USB2 (the VBUS1 pin, the VBUS2 pin, the VBUS3 pin, and the VBUS4 pin), which can be denoted by the symbol VBUS _ C. The negative terminal of the capacitor C9 is connected to ground. The second terminal (S pole) of the switch Q1 is connected to the Type-a interface USB1(VBUS pin) and the positive pole of the capacitor C10, respectively. The third terminal (G pole) of the switch tube Q1 is connected to the ID pin of the identification chip U2 of the identification module 2. The negative terminal of the capacitor C10 is connected to ground.

It should be noted that the specific model of the switching tube Q1 may be BLM 3401. The capacitance values of the capacitor C9 and the capacitor C10 can be 1uF and 10uF respectively.

In an embodiment of the present invention, the USB interface converter further includes a ferrite bead fb (ferrite bead)1, which is mainly used to suppress high frequency noise and peak interference of signals or power lines, and further has the ability to absorb electrostatic pulses. The ferrite bead FB1 may be R0603, and one end of the ferrite bead FB1 is connected to the second end (S-pole) of the switching tube Q1 in the power switch module, and the other end of the ferrite bead FB1 is connected to an external power source.

The embodiment of the utility model provides an in, control this switch module through identification module 2 and control the power break-make of Type-A interface USB1 and Type-C interface USB2 to Type-A interface USB1 and Type-C interface USB2 close Type-A interface USB1 and Type-C interface USB2 when unusual state or needs the stop work. Therefore, the damage to the Type-A interface USB1 and the Type-C interface USB2 can be avoided. And further improve the working stability and quality of the whole USB interface converter.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A USB interface converter, comprising:

2. The USB interface converter of claim 1, further comprising: a configuration module connected with the identification module.

3. The USB interface converter of claim 2, wherein the configuration module comprises: a resistor R1 and a resistor R3;

the other end of the resistor R3 is connected to ground.

4. The USB interface converter as recited in claim 1, further comprising: and the power switch module is respectively connected with the first type interface, the identification module and the second type interface.

5. The USB interface converter according to claim 4, wherein the power switch module comprises a capacitor C9, a capacitor C10, and a switch Q1;

6. The USB interface converter of claim 1, wherein the conversion module comprises: and converting the chip.

7. The USB interface converter of claim 6, wherein the conversion module further comprises: a capacitor C1, a capacitor C2, a capacitor C7, and a capacitor C8;

8. The USB interface converter as recited in claim 1, wherein the identification module comprises an identification chip.

9. The USB interface converter of claim 8, wherein the identification module further comprises: a capacitor C11, a resistor R2 and a resistor R4;

the other end of the resistor R4 is connected with the identification chip.

10. The USB interface converter according to any one of claims 1 to 8, wherein the first Type of interface is a Type-a interface and the second Type of interface is a Type-C interface.