CN201025533Y - A drive circuit device for simplifying serial interface - Google Patents
A drive circuit device for simplifying serial interface Download PDFInfo
- Publication number
- CN201025533Y CN201025533Y CNU2007201185617U CN200720118561U CN201025533Y CN 201025533 Y CN201025533 Y CN 201025533Y CN U2007201185617 U CNU2007201185617 U CN U2007201185617U CN 200720118561 U CN200720118561 U CN 200720118561U CN 201025533 Y CN201025533 Y CN 201025533Y
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- China
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- driving circuit
- circuit device
- port com
- core
- serial port
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Abstract
The utility model provides a drive circuit device used for simplified serial ports. The utility model comprises a standard serial communication port, a RS232 drive circuit and a four-core signal interface connector. The four-core signal interface connector, the RS232 drive circuit and the standard serial communication port are integrated on the PCB circuit board. The four-core signal interface connector is connected with the computer through the integrated drive circuit device so that the software update and the data transfer are realized. The structure is simple, the use is convenient and the developing costs are saved effectively.
Description
Technical field
The utility model relates to the audio and video equipment field, particularly a kind of RS232 driving circuit device that is used for the summary serial ports.
Background technology
In the prior art, software upgrading, data transmission with small-sized and portable audio and video equipment adopt PC Serial (9) serial communication interface usually, this interface is bigger, and the RS232 driving circuit of standard serial communication interface PCSerial (9) is arranged on the host circuit board of product inside, cause machine bigger, in order to simplify circuit, the RS232 driving circuit is removed, adopt the small-sized and portable audio and video equipment of summary serial ports.For audio and video equipment with summary serial ports, software upgrading from the external equipment of standard serial communication interface, data transmission if desired since product do not have the RS232 driving circuit can not with external computer realization software upgrading and data transmission.
Summary of the invention
The purpose of this utility model is to provide a kind of RS232 driving circuit device that is used for the summary serial ports at the defective that above-mentioned prior art exists.
The technical solution of the utility model is as follows:
A kind of driving circuit device that is used for the summary serial ports, comprise the standard serial PORT COM, RS232 driving circuit and 4 core signaling interface connectors, described 4 core signaling interface connectors and described RS232 driving circuit and described standard serial PORT COM are integrated on the PCB circuit board, described standard serial PORT COM links to each other with the signal input part of described RS232 driving circuit, the signal output part of described RS232 driving circuit links to each other with described 4 core signaling interface connectors, link to each other with external equipment by described standard serial PORT COM, realize the transmission of data.
Wherein, the input end of described 4 core signaling interface connectors and output terminal comprise serial data output respectively, the serial data input, four lines of ground wire and power supply, the serial data output line of described input end and serial data incoming line are connected the data input pin and the data output pin of described RS232 chip for driving, the external one 4 core interface plugs of four lines of described output terminal respectively.Described standard serial PORT COM is 9 core signaling interfaces.
A kind of RS232 driving circuit device that is used for the summary serial ports provided by the utility model, with the standard serial PORT COM, RS232 driving circuit and 4 core signaling interface connectors etc. are integrated in one on the PCB circuit board, be connected on the product with summary 4 core serial ports by one 4 core interface plug, realize software upgrading and data transmission by this RS232 driving circuit device, simple in structure, easy to use, save cost of development effectively.
Description of drawings
Fig. 1 is driving circuit figure of the present utility model;
Fig. 2 is a RS232 driving circuit device block diagram of the present utility model.
Embodiment
Below preferred embodiment of the present utility model is described in detail.
A kind of driving circuit device that is used for the summary serial ports, see for details shown in the accompanying drawing 1, standard serial PORT COM (9 core) is fixed on the PCB circuit board, wherein the TXD serial data output line in the standard serial PORT COM and RXD serial data incoming line are connected T1OUT pin and the R1IN pin of RS232 chip for driving U1 respectively, be used for the transmission of serial data, RS232 chip for driving U1 also comprises 5 electric capacity, wherein capacitor C 148 is between the VCC 16 and GND 15 bipods of chip U1, VCC connects power supply, GND ground connection; Capacitor C 145 links to each other other end common ground with the V+ (2 pin) of chip U1 with V-(6 pin) respectively with capacitor C 146 1 ends; The C1+ of capacitor C 144 1 chip termination U1 (1 pin), the C1-of a chip termination U1 (3 pin); The C2+ of capacitor C 147 1 chip termination U1 (4 pin), the C2-of a chip termination U1 (5 pin); 4 core signaling interface connectors comprise serial data output, the serial data input, four lines of ground wire and power supply, wherein TXD serial data output line and RXD serial data incoming line are connected T1IN pin and the R1OUT pin of RS232 chip for driving U1 respectively, can will send the peripheral equipment of the summary 4 core serial ports that link to each other with 4 core signaling interfaces to by the data that come from the standard serial PORT COM by this interface connector.
See for details shown in the accompanying drawing 2, the utility model comprises standard serial PORT COM A, RS232 driving circuit B and 4 core signaling interface connector C, described 4 core signaling interface connector C and described RS232 driving circuit B and described standard serial PORT COM A are integrated on the PCB circuit board, standard serial PORT COM A links to each other with the signal input part of described RS232 driving circuit B, the signal output part of RS232 driving circuit B links to each other with described 4 core signaling interface connector C, the output terminal of 4 core signaling interface connector C comprises serial data output, the serial data input, four lines of ground wire and power supply, the external one 4 core interface plug D of four lines of described output terminal, described plug is connected on the machine jack that links to each other with the user.When the user need be when computing machine carries out software upgrading, data transmission, an end of the driving circuit device of this summary serial ports is connected computing machine by PC Serial (9) COM port, the other end connects the machine with the miniature Interface Terminal of 4 cores.
Owing to used this device, can be easily machine with the miniature Interface Terminal of 4 cores PC Serial (9) the standard serial PORT COM by integrated driving circuit device be linked to each other with computing machine, realize software upgrading and data transmission, simple in structure, easy to use.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (3)
1. driving circuit device that is used for the summary serial ports, it is characterized in that: comprise the standard serial PORT COM, RS232 driving circuit and 4 core signaling interface connectors, described 4 core signaling interface connectors and described RS232 driving circuit and described standard serial PORT COM are integrated on the PCB circuit board, described standard serial PORT COM links to each other with the signal input part of described RS232 driving circuit, the signal output part of described RS232 driving circuit links to each other with described 4 core signaling interface connectors, link to each other with external equipment by described standard serial PORT COM, realize the transmission of data.
2. driving circuit device according to claim 1, it is characterized in that, the input end of described 4 core signaling interface connectors and output terminal comprise serial data output respectively, the serial data input, four lines of ground wire and power supply, the serial data output line of described input end and serial data incoming line are connected the data input pin and the data output pin of described RS232 chip for driving, the external one 4 core interface plugs of four lines of described output terminal respectively.
3. driving circuit device according to claim 1 is characterized in that, described standard serial PORT COM is 9 core signaling interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201185617U CN201025533Y (en) | 2007-02-07 | 2007-02-07 | A drive circuit device for simplifying serial interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201185617U CN201025533Y (en) | 2007-02-07 | 2007-02-07 | A drive circuit device for simplifying serial interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025533Y true CN201025533Y (en) | 2008-02-20 |
Family
ID=39099392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201185617U Expired - Fee Related CN201025533Y (en) | 2007-02-07 | 2007-02-07 | A drive circuit device for simplifying serial interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025533Y (en) |
-
2007
- 2007-02-07 CN CNU2007201185617U patent/CN201025533Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20120207 |