CN201204593Y - USB-optical-fiber connector - Google Patents
USB-optical-fiber connector Download PDFInfo
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- CN201204593Y CN201204593Y CNU2008200933846U CN200820093384U CN201204593Y CN 201204593 Y CN201204593 Y CN 201204593Y CN U2008200933846 U CNU2008200933846 U CN U2008200933846U CN 200820093384 U CN200820093384 U CN 200820093384U CN 201204593 Y CN201204593 Y CN 201204593Y
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Abstract
The utility model relates to a USB-optical fiber converter for linking an external PC machine and a wind energy converter, including a casing, a USB interface and an optical fibre communication interface are arranged on the casing; the USB interface is used for linking with the external PC machine, the optical fibre communication interface is used for linking the wind energy converter. The USB-optical fiber converter may implement high-speed data exchange between a background PC machine and the wind energy converter, the exchange speed can arrive 921. 6kbps, and implement high-reliability by means of using optical fiber for communication; the USB interface is more suitable for the condition that the present serial port is washout, and is used as the mainstream interface of PC. The converter can protect the USB data differential signal from resisting static, the port protective circuit is suitable for the bad industry circumstance, and can resist 6 KV contact discharging and 8 KV air discharging, also can resist 500 V electromagnetic field near-field disturbance; the circuit is simple, due to using a high-power optical fiber transceiver, the conversion of USB-optical fiber optical signal can be implemented without a optical fiber drive module, and a farther communication distance and a higher communication speed can be implemented.
Description
Technical field
The utility model relates to transducer, more particularly, relates to a kind of USB-optic fiber converter.
Background technology
Along with the development and the application of wind generating technology, need to carry out the lot of data exchange between background PC computer and the wind energy converter, and the exchanges data speed between present background PC computer and the wind energy converter can not satisfy the needs of commercial Application.And the general applied environment of current transformer of wind energy MW level is more abominable, and the electromagnetic interference in space is more serious, the poor reliability of exchanges data.And can not resist the atmospherical discharges of 6KV contact discharge and 8KV, and the near field harassing and wrecking of resisting the 500V electromagnetic field.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, provides a kind of USB-optic fiber converter with high-speed communication, high reliability.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of USB-optic fiber converter, be used to connect outer PC and wind energy converter to carry out exchanges data, it comprises body, and described body is provided with USB interface and optical fiber communication interface; Described USB interface is used for being connected with outer PC, and described optical fiber communication interface is used for being connected with wind energy converter.
In USB-optic fiber converter described in the utility model, described USB-optic fiber converter comprises USB interface, port protection circuit, USB-UART built-up circuit and the fiber optical transceiver that connects in turn.
Preferably, described USB interface comprises power line, positive differential signal D+ line, minus tolerance sub-signal D-line and earth connection; Described USB-UART built-up circuit is a USB-UART single-chip bridger; Described port protection circuit comprises: capacitor C 2, C3, diode D6, D7, D8, D9, Transient Suppression Diode D3;
Wherein, the end of capacitor C 2, C3 is connected respectively to USB-UART single-chip bridger+5V power supply and imports on the REGIN line other end ground connection;
The negative electrode of diode D6 and D7 is connected respectively to the positive differential signal D+ line and the minus tolerance sub-signal D-line of USB-UART single-chip bridger, the anode of diode D6 and D7 interconnects and is connected with the end of Transient Suppression Diode D3, the other end of Transient Suppression Diode D3 is connected to the negative electrode of diode D8, D9, and the anode of diode D8, D9 is connected respectively to the positive differential signal D+ line and the minus tolerance sub-signal D-line of USB-UART single-chip bridger.
Further preferred, described port protection circuit also comprises: inductance L 1 and L2; Wherein, the end of inductance L 1 and L2 is connected with the power line of described USB interface respectively, and the other end is coupled to respectively+the 5V power supply.
Further preferred, described port protection circuit also comprises: resistance R 9 and R10; Wherein, resistance R 9 be connected on inductance L 1 and+the 5V power supply between, resistance R 10 be connected on inductance L 2 and+the 5V power supply between.
In USB-optic fiber converter described in the utility model, fiber optical transceiver comprises fiber optic transmitter and fiber optic receiver, described fiber optic transmitter is connected with the transmission pin TXD of described USB-UART single-chip bridger, and described fiber optic receiver is connected with the reception pin RXD of described USB-UART single-chip bridger.
Preferably, described fiber optic transmitter is the large-power optical fiber transmitter, and described fiber optic receiver is the TTL fiber optic receiver.
Implement USB-optic fiber converter of the present utility model, have following beneficial effect: can realize that background PC computer and wind energy converter carry out exchanges data at a high speed, exchange velocity reaches 921.6kbps, communicates by adopting optical fiber, realizes high reliability; Adopt the interface of USB, more can adapt to present serial ports and be eliminated, USB interface is as the present situation in the PC market of main flow interface.Simultaneously the data differential signals of USB is carried out anlistatig protection, the port-guard circuit is applicable to abominable industrial environment, can resist the atmospherical discharges of 6KV contact discharge and 8KV, resists the near field harassing and wrecking of 500V electromagnetic field simultaneously; And circuit is simple, owing in this USB-optic fiber converter, adopt powerful fiber optical transceiver, therefore under the condition that does not adopt the optical fiber driver module, can realize the conversion of USB-optical fiber light signal, and can realize communication distance far away and higher communication speed.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of the utility model USB-optic fiber converter one embodiment;
Fig. 2 is the circuit block diagram of USB-optic fiber converter shown in Figure 1;
Fig. 3 is USB-optic fiber converter circuit theory diagrams shown in Figure 2.
Embodiment
The technical solution of the utility model mainly is in order to solve the high-speed communication between outer PC and the wind energy converter, high reliability, the differential signal of USB is carried out the protection of port, under the condition that does not adopt the optical fiber driver module, realize that the USB signal of telecommunication changes the conversion of optical fiber light signal.
As shown in Figure 1, in USB-optic fiber converter 2 one embodiment of the present utility model, be used to connect outer PC and wind energy converter to carry out exchanges data, comprise body, this body is provided with USB interface 21 and optical fiber communication interface 12; USB interface 21 is used for being connected with outer PC, and optical fiber communication interface 12 is used for being connected with wind energy converter.At work, USB-optic fiber converter 2 need not independently power supply, and it is powered by outer PC by USB interface.USB-optic fiber converter 2 is with after outer PC links to each other, and as a universal serial port of PC, the serial ports baud rate of communication can be selected in 300bps～921.6kbps arbitrarily, and maximum can reach 921.6kbps.
As shown in Figure 2, in one embodiment, USB-optic fiber converter 2 comprises USB interface 21, port protection circuit 22, USB-UART built-up circuit 23 and the fiber optical transceiver 24 that connects in turn.USB interface 21 is connected with exterior PC, and USB interface 21 gives subsequent conditioning circuit used from the PC stealing, and promptly USB-optic fiber converter 2 need not independently power supply power supply.The level that the conversion of the differential signal process USB-UART built-up circuit 23 that PC passes over becomes 3.3V directly sends to fiber optical transceiver 24.Port protection circuit 22 mainly is the USB interface chip of 2 li of protection USB-optic fiber converters, and the distortion during to its infringement that causes and data communication of static when preventing hot plug and electric surge is to suppress instantaneous peak voltage.
As shown in Figure 3, in the physical circuit design, USB interface 21 comprises power line, positive differential signal D+ line, minus tolerance sub-signal D-line and earth connection, wherein power line connection+5V power supply; USB-UART built-up circuit 23 is USB-UART single-chip bridgers; This USB-UART single-chip bridger is that the integrated USB of a kind of height changes the UART bridger, it provides one to use minimized element and PCB space to realize that RS232 changes the easy solution of USB, and this chip comprises a USB2.0 function control device USB transceiver oscillator and the asynchronous serial data bus (UART) that has whole modem control signals at full speed.Repertoire is integrated among the IC of a 5mmX5mm MLP-28 encapsulation.Need not other external USB element, EEPROM can be used for the memory space by data such as the self-defined USB vendor code of original equipment manufacturer, product code, product description literal, power label, version number and device serial number in the sheet.EEPROM can programme on the application plate by USB, and this makes just can realize it is programmed in product manufacturing and debug process.Port protection circuit 22 comprises: capacitor C 2, C3, diode D6, D7, D8, D9, Transient Suppression Diode D3; Wherein, the end of capacitor C 2, C3 is connected respectively to USB-UART single-chip bridger+5V power supply and imports on the REGIN line other end ground connection; The negative electrode of diode D6 and D7 is connected respectively to the positive differential signal D+ line and the minus tolerance sub-signal D-line of USB-UART single-chip bridger, the anode of diode D6 and D7 interconnects and is connected with the end of Transient Suppression Diode D3, the other end of Transient Suppression Diode D3 is connected to the negative electrode of diode D8, D9, and the anode of diode D8, D9 is connected respectively to the positive differential signal D+ line and the minus tolerance sub-signal D-line of USB-UART single-chip bridger.In this circuit, adopt capacitor C 3 at power supply+5V port, the interference of C2 filtering low-and high-frequency adopts inductance to suppress the surge of moment, and the resistance in 0.5 Europe absorbs energy, adopts the TVS pipe to improve common mode inhibition capacity.On the holding wire of differential signal, adopt the TVS pipe to suppress differential mode interference, because the junction capacitance of TVS is bigger, the appearance of the transmission rate of the agreement of USB about 12M, junction capacitance has influenced the transmission of signal, adopting junction capacitance is that the diode of 10p is managed to connect with TVS and reduced the size of whole junction capacitance greatly, has guaranteed the accurate transmission of signal.
On port-guard, a preferred scheme is, inductance is just adopted in the protection of+5V power end, plug instantaneous due to voltage spikes by the TVS pipe wrench built in 6.45V, the life-span of docking port conversion chip is played certain influence.That is, in port protection circuit 22, add inductance L 1 and L2; Wherein, the end of inductance L 1 and L2 is connected with the power line of USB interface 21 respectively, and the other end is coupled to respectively+the 5V power supply.
But preferred plan is that resistance of series connection carries out energy absorption on inductance, and voltage is suppressed at below the 5.5V, has prolonged the life-span of conversion chip effectively, and physical circuit is designed to, and adds resistance R 9 and R10 in port protection circuit 22; Wherein, resistance R 9 be connected on inductance L 1 and+the 5V power supply between, resistance R 10 be connected on inductance L 2 and+the 5V power supply between.
In addition, as shown in Figure 3, in port protection circuit 22, also comprise inductance L 3, L4, resistance R 1, light-emitting diode D1, capacitor C 1, C4, C9, C10, Transient Suppression Diode D2 and capacitor C 7, be connected on again after wherein inductance L 3 and L4 are connected in parallel and carry out filtering between USB interface 21 and the ground; One end of resistance R 1 is connected with the power line of USB interface 21, and the other end is connected with the anode of light-emitting diode D1, and the negative electrode of light-emitting diode D1 links to each other with ground, with as power supply indicator; In addition, an end of capacitor C 9 is connected on the positive differential signal D+ line, other end ground connection, and an end of capacitor C 10 is connected on the minus tolerance sub-signal D-line, and other end ground connection is with the interference of further filtering low-and high-frequency; One end of Transient Suppression Diode D2 and capacitor C 7 is connected respectively on the power input line of USB interface 21, and the other end is ground connection respectively; The end of capacitor C 4 and C1 is connected respectively on the 3.3V voltage regulator output vdd line of USB-UART single-chip bridger, and the other end is ground connection respectively, to carry out the interference of filtering low-and high-frequency.
Further, fiber optical transceiver 24 comprises fiber optic transmitter and fiber optic receiver as shown in Figure 3, this fiber optic transmitter is connected with the transmission pin TXD of USB-UART single-chip bridger, and fiber optic receiver is connected with the reception pin RXD of USB-UART single-chip bridger.In force, if when adopting original low power fiber optical transceiver, for example HFBR2522Z of Agilent company and 1522Z fiber optical transceiver when satisfying the requiring of Optical Fiber Transmission distance, need to increase drive circuit.After increasing drive circuit,, improved communication distance, introduced the transmission of drive circuit, hindered the raising of communication speed though increase the power of fiber optical transceiver.Therefore, preferred, fiber optic transmitter adopts the large-power optical fiber transmitter, and fiber optic receiver adopts the TTL fiber optic receiver.
In actual use, the high integration USB that USB-UART built-up circuit 23 can select for use U.S. Silicon company to produce changes UART special chip CP2102, in this embodiment, fiber optical transceiver 24 directly adopts the level of CP2102 chip pin output to drive, and the speed of CP2102 device data fastest transmission is 921.6kbps.Fiber optical transceiver 24 can be selected the large-power optical fiber transmitter HFBR-1414Z and the 5MBdTTL fiber optic receiver HFBR-2412Z of Agilent company for use, and in this embodiment, the data transmission bauds of fiber optical transceiver 24 is the fastest to be 5Mbps.
The utility model describes by several specific embodiments, it will be appreciated by those skilled in the art that, under the situation that does not break away from the utility model scope, can also carry out various conversion and be equal to alternative the utility model.In addition, at particular condition or concrete condition, can make various modifications to the utility model, and not break away from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole execution modes that fall in the utility model claim scope.
Claims (7)
1, a kind of USB-optic fiber converter is used to connect outer PC and wind energy converter to carry out exchanges data, and it comprises body, it is characterized in that, described body is provided with USB interface and optical fiber communication interface; Described USB interface is used for being connected with outer PC, and described optical fiber communication interface is used for being connected with wind energy converter.
2, USB-optic fiber converter according to claim 1 is characterized in that, described USB-optic fiber converter comprises USB interface, port protection circuit, USB-UART built-up circuit and the fiber optical transceiver that connects in turn.
3, USB-optic fiber converter according to claim 2 is characterized in that, described USB interface comprises power line, positive differential signal D+ line, minus tolerance sub-signal D-line and earth connection; Described USB-UART built-up circuit is a USB-UART single-chip bridger; Described port protection circuit comprises: capacitor C 2, C3, diode D6, D7, D8, D9, Transient Suppression Diode D3;
Wherein, the end of capacitor C 2, C3 is connected respectively to USB-UART single-chip bridger+5V power supply and imports on the REGIN line other end ground connection;
The negative electrode of diode D6 and D7 is connected respectively to the positive differential signal D+ line and the minus tolerance sub-signal D-line of USB-UART single-chip bridger, the anode of diode D6 and D7 interconnects and is connected with the end of Transient Suppression Diode D3, the other end of Transient Suppression Diode D3 is connected to the negative electrode of diode D8, D9, and the anode of diode D8, D9 is connected respectively to the positive differential signal D+ line and the minus tolerance sub-signal D-line of USB-UART single-chip bridger.
4, USB-optic fiber converter according to claim 3 is characterized in that, described port protection circuit also comprises: inductance L 1 and L2; Wherein, the end of inductance L 1 and L2 is connected with the power line of described USB interface respectively, and the other end is coupled to respectively+the 5V power supply.
5, USB-optic fiber converter according to claim 4 is characterized in that, described port protection circuit also comprises: resistance R 9 and R10; Wherein, resistance R 9 be connected on inductance L 1 and+the 5V power supply between, resistance R 10 be connected on inductance L 2 and+the 5V power supply between.
6, according to the arbitrary described USB-optic fiber converter of claim 3～5, it is characterized in that, fiber optical transceiver comprises fiber optic transmitter and fiber optic receiver, described fiber optic transmitter is connected with the transmission pin TXD of described USB-UART single-chip bridger, and described fiber optic receiver is connected with the reception pin RXD of described USB-UART single-chip bridger.
7, USB-optic fiber converter according to claim 6 is characterized in that, described fiber optic transmitter is the large-power optical fiber transmitter, and described fiber optic receiver is the TTL fiber optic receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200933846U CN201204593Y (en) | 2008-04-18 | 2008-04-18 | USB-optical-fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200933846U CN201204593Y (en) | 2008-04-18 | 2008-04-18 | USB-optical-fiber connector |
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| CN201204593Y true CN201204593Y (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200933846U Expired - Lifetime CN201204593Y (en) | 2008-04-18 | 2008-04-18 | USB-optical-fiber connector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163769A (en) * | 2009-11-30 | 2011-08-24 | 安华高科技光纤Ip（新加坡）私人有限公司 | Universal serial bus connector (USB) having an optical-to-electrical/electrical-to-optical conversion module (OE Module) and high-speed electrical connections integrated therein |
| US8328434B2 (en) | 2009-11-21 | 2012-12-11 | Avago Technologies Fiber Ip (Singapore) Pte. Ltd. | Universal serial bus (USB) connector having an optical-to-electical/electrical-to-optical conversion module (OE module) and high-speed electrical connections integrated therein |
| CN103135668A (en) * | 2011-11-28 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Panel personal computer (PPC) |
| CN107179457A (en) * | 2017-05-25 | 2017-09-19 | 上海市共进通信技术有限公司 | The method of adjustment that home gateway class communication terminal is tested by esd immunity |
| CN108205509A (en) * | 2016-12-16 | 2018-06-26 | 上海普锐马电子有限公司 | A kind of telecommunication circuit of computer and electromagnetic compatibility instrument |
-
2008
- 2008-04-18 CN CNU2008200933846U patent/CN201204593Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8328434B2 (en) | 2009-11-21 | 2012-12-11 | Avago Technologies Fiber Ip (Singapore) Pte. Ltd. | Universal serial bus (USB) connector having an optical-to-electical/electrical-to-optical conversion module (OE module) and high-speed electrical connections integrated therein |
| CN102163769A (en) * | 2009-11-30 | 2011-08-24 | 安华高科技光纤Ip（新加坡）私人有限公司 | Universal serial bus connector (USB) having an optical-to-electrical/electrical-to-optical conversion module (OE Module) and high-speed electrical connections integrated therein |
| CN102163769B (en) * | 2009-11-30 | 2014-02-12 | 安华高科技通用Ip(新加坡)公司 | Universal serial bus connector (USB) having optical-to-electrical/electrical-to-optical conversion module (OE Module) and high-speed electrical connections integrated therein |
| CN103135668A (en) * | 2011-11-28 | 2013-06-05 | 鸿富锦精密工业（深圳）有限公司 | Panel personal computer (PPC) |
| CN108205509A (en) * | 2016-12-16 | 2018-06-26 | 上海普锐马电子有限公司 | A kind of telecommunication circuit of computer and electromagnetic compatibility instrument |
| CN107179457A (en) * | 2017-05-25 | 2017-09-19 | 上海市共进通信技术有限公司 | The method of adjustment that home gateway class communication terminal is tested by esd immunity |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Nanshan District Xueyuan Road in Shenzhen city of Guangdong province 518055 No. 1001 Nanshan Chi Park B2 building 1-4 floor, building 6-10 Patentee after: Vitamin Technology Co., Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: Aimosheng Network Energy Source Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |