CN206601653U - Multifunctional usb port converter - Google Patents
Multifunctional usb port converter Download PDFInfo
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- CN206601653U CN206601653U CN201720281010.6U CN201720281010U CN206601653U CN 206601653 U CN206601653 U CN 206601653U CN 201720281010 U CN201720281010 U CN 201720281010U CN 206601653 U CN206601653 U CN 206601653U
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- usb
- interfaces
- select switch
- serial ports
- functional select
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Abstract
The utility model is related to a kind of Multifunctional USB port converter, it is characterized in that being connected and composed by USB input interfaces, functional select switch, USB HUB circuits, RS232 interface conversion circuits, RJ45 output interfaces, its advantage is that USB is converted into polytype interface conversion functions such as USB HUB, RS232 standard serial port, RJ45 interfaces to roll into one so that the conversion of different type interface can be realized disposably.Its is simple in construction, easy to carry, easy to operate.
Description
Technical field
The utility model is related to a kind of USB port attachment means, and it is a variety of that particularly a kind of achievable USB port changes other
The Multifunctional USB port converter of type port.
Background technology
The external-connected port of existing notebook computer, which has been substantially all, employs USB port, in actual use, because of difference
Working condition, be frequently encountered the situation for needing to connect other types ports.In order to realize the connection with other types port,
A variety of converters are often used, the converter for selecting these different is not only bothered, and also need to that a variety of drives are installed
Dynamic program, inconvenience is brought to user.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art to gather a variety of well known port types there is provided a kind of
Multifunctional USB port converter.
This is using new technical solution：A kind of Multifunctional USB port converter, it is characterised in that defeated by USB
Incoming interface, functional select switch, USB HUB circuits, RS232 interface conversion circuits, RJ45 output interfaces are connected and composed.Wherein：
USB HUB circuits are made up of USB HUB control chips and connected USB output interfaces, USB input interfaces
Four pins are connected by a path of functional select switch with USB HUB control chips；
RS232 interface conversion circuits by usb bus transfer chip, rs-232 standard serial ports single supply electrical level transferring chip,
RS232 output serial ports compositions, another path and usb bus that three pins of USB input interfaces pass through functional select switch
Switching chip, rs-232 standard serial ports single supply electrical level transferring chip and RS232 output serial ports are connected；
Four pins of USB input interfaces are connected by the 3rd path of functional select switch with RJ45 output interfaces
Connect.
Described USB HUB control chips are connected with multiple USB output interfaces.
The utility model has the advantages that：USB is converted into the multiple types such as USB HUB, RS232 standard serial port, RJ45 interfaces
The interface conversion function of type is rolled into one so that the conversion of different type interface can be realized disposably.Its is simple in construction, carries
It is convenient, it is easy to operate.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model；
Fig. 2 is the circuit diagram that the utility model USB interface is converted to RJ45 interfaces.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, the utility model is connect by USB input interfaces 1, functional select switch 2, USB HUB circuits, RS232
Mouth change-over circuit, RJ45 output interfaces RJ45 are connected and composed.
USB input interfaces by tri- paths of a, b, c of functional select switch respectively with USB HUB circuits, RS232 interfaces
Change-over circuit, RJ45 output interfaces are connected.
USB HUB circuits are made up of USB HUB control chips and connected USB output interfaces 3, the present embodiment
USB HUB control chips use GL850A chips.Four pins of USB input interfaces by a paths of functional select switch with
USB HUB control chips are connected, and USB HUB control chips are connected with multiple USB output interfaces again.
RS232 interface conversion circuits are by usb bus switching chip 5, rs-232 standard serial ports single supply electrical level transferring chip
6th, RS232 exports serial ports 4 and constituted.In the present embodiment, usb bus switching chip uses CH341T chips, rs-232 standard string
Mouth single supply electrical level transferring chip then uses MAX232 chips.The b that three pins of USB input interfaces pass through functional select switch
VCC, UD of path and CH341T chips+、UD-Pin is connected, RXD, TXD pin of CH341T chips respectively with MAX232 chips
R10, T11 pin are connected, and R11, T10 pin of MAX232 chips are connected with RS232 output serial ports.
Four pins of USB input interfaces are connected by the c paths of functional select switch with RJ45 output interfaces 7.Its
In, the VCC pin of USB input interfaces are connected with the SEL2 pin of RJ45 output interfaces；The D of USB input interfaces-、D+Pin correspondence is connected
In the D of RJ45 output interfaces-、D+Pin；The GND pin of USB input interfaces are connected with the GND pin of RJ45 output interfaces and SEL1 pin
Connect, see Fig. 2.
In use, can be connected USB input interfaces with computer, connection USB, RS-232, RJ45 etc. are needed further according to different
Interface.
Claims (2)
1. a kind of Multifunctional USB port converter, it is characterised in that by USB input interfaces, functional select switch, USB HUB electricity
Road, RS232 interface conversion circuits, RJ45 output interfaces are connected and composed, wherein：
USB HUB circuits are made up of USB HUB control chips and connected USB output interfaces, four of USB input interfaces
Pin is connected by a path of functional select switch with USB HUB control chips；
RS232 interface conversion circuits are by usb bus switching chip, rs-232 standard serial ports single supply electrical level transferring chip, RS232
Serial ports composition is exported, three pins of USB input interfaces pass through another path and usb bus switching core of functional select switch
Piece, rs-232 standard serial ports single supply electrical level transferring chip and RS232 output serial ports are connected；
Four pins of USB input interfaces are connected by the 3rd path of functional select switch with RJ45 output interfaces.
2. Multifunctional USB port converter according to claim 1, it is characterised in that described USB HUB control chips
It is connected with multiple USB output interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720281010.6U CN206601653U (en) | 2017-03-22 | 2017-03-22 | Multifunctional usb port converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720281010.6U CN206601653U (en) | 2017-03-22 | 2017-03-22 | Multifunctional usb port converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206601653U true CN206601653U (en) | 2017-10-31 |
Family
ID=60145596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720281010.6U Active CN206601653U (en) | 2017-03-22 | 2017-03-22 | Multifunctional usb port converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206601653U (en) |
-
2017
- 2017-03-22 CN CN201720281010.6U patent/CN206601653U/en active Active
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