CN200965683Y - USB interface device with self-restoring protective functions - Google Patents
USB interface device with self-restoring protective functions Download PDFInfo
- Publication number
- CN200965683Y CN200965683Y CN 200620200876 CN200620200876U CN200965683Y CN 200965683 Y CN200965683 Y CN 200965683Y CN 200620200876 CN200620200876 CN 200620200876 CN 200620200876 U CN200620200876 U CN 200620200876U CN 200965683 Y CN200965683 Y CN 200965683Y
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- Prior art keywords
- usb
- usb interface
- host side
- equipment end
- interface
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- Expired - Fee Related
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Abstract
The utility model discloses an USB interface device having the function of self recovery and protection. The device comprises a host side USB part, a device side USB part, and an USB cable connected with the host side USB part and the device side USB part ; the host side USB part comprises an interface of host side USB (CN1) and a host side data disposal cell which connected with the host side USB (CN1); the device USB part comprises an interface of device port USB (CN2) and a device port data disposal cell that is connected with the device port USB (CN2); The utility model is characterized in that the USB data transmission distance can be increased by 50 meters without impressed electric power through the installation of two chip cells, and USB interface can be effectively protected through the protection element arranged, which has simple structure and low cost.
Description
Technical field
The utility model relates to a kind of data transmission set, especially a kind of own USB interface device from the recovery and protection function
Background technology
At present, the usb data transmission interface of computer and other equipment, the data that the length of its external data line is generally transmitted after surpassing 5 meters will decay to the degree that equipment can't be discerned, more can't carry out data transmission, the data line that has now can be extended transmission distance by multi-section serial chip or other equipment, what have also needs additional power source, and cost is very high.And existing transmission data line do not possess the defencive function to the equipment fracture, easily the USB fracture circuit of equipment looked for into damage in the use.
The utility model content
The purpose of this utility model is, a kind of USB interface device that has from the recovery and protection function is provided.This device can not need additional power source, can make the effective propagation path of data line increase to 50 meters, and have from the recovery and protection function, can effectively protect the usb data interface, and is with low cost.
The technical solution of the utility model: this device comprises host side USB part and equipment end USB part, and the USB cable that connects two parts; Host side USB partly comprises host side USB interface CN1, the host side data processing unit that joins with host side USB interface CN1; Equipment end USB partly comprises equipment end USB interface CN2, the equipment end data processing unit that joins with equipment end USB interface CN2; The power pins of host side USB interface CN1 is connected through USB cable with the equipment end data processing unit with power pins and the host side data processing unit of equipment end USB interface CN2; Be serially connected with protecting component Fu on the power pins of host side USB interface CN1.
The described USB interface device that has from the recovery and protection function, the host side data processing unit comprises the mu balanced circuit (IC1) that is connected with the power pins of host side USB interface (CN1), the usb data interface chip IC2 that is connected with the data pin and the mu balanced circuit (IC1) of host side USB interface (CN1); The equipment end data processing unit comprises the mu balanced circuit IC3 that is connected with the power pins of equipment end USB interface CN2, the usb data interface chip IC4 that is connected with data pin and the mu balanced circuit IC3 of equipment end USB interface CN2.
Aforesaid USB cable is common quad.
Aforesaid: USB cable is eight core netting twines.
In 8 lines of eight above-mentioned core netting twines, it is that ground wire, 2 lines are that signal wire, 2 lines are electric power connection line that 4 lines are arranged.
Aforesaid mu balanced circuit (IC1) and mu balanced circuit (IC3) are equipped with one group of filter capacitor.
Compared with prior art, the utility model does not need additional power source, only needs 2 chip units are installed, and just can improve usb data transmission range to 50 meter, and can effectively protect USB interface by the protecting component of installation, and is simple in structure, with low cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
Embodiment: have from the structure of the USB interface device of recovery and protection function as shown in Figure 1, this device comprises host side USB part and equipment end USB part, and the USB cable that connects two parts; Host side USB partly comprises host side USB interface CN1, the mu balanced circuit IC1 that is connected with host side USB interface CN1 power pins, the process chip IC2 that is connected with host side USB interface CN1 data pin data and mu balanced circuit IC1; Mu balanced circuit IC1 is equipped with filter capacitor C3, C4, C5, C6; Equipment end USB partly comprises equipment end USB interface CN2, the mu balanced circuit IC3 that is connected with equipment end USB interface CN2 power pins, the usb data interface chip IC4 that is connected with equipment end USB interface CN2 data pin and mu balanced circuit IC3, mu balanced circuit IC3 installs filter capacitor C7, C8, C9, C10; Host side USB part and equipment end USB part are that 50 meters eight core netting twines are connected through length, and wherein 4 lines are that ground wire, 2 lines are that data line, 2 lines are electric power connection line; Be serially connected with protecting component Fu on the power pins of host side USB interface CN1.
In this example, CN1, CN2 are standard USB interface, IC1, IC3 are that model is the threeway mu balanced circuit of L117 (3.3V), and IC2, IC4 are the usb data interface chip (the sharp and chip companies manufacturing by Shenzhen) of model UIC4101, and FU is the resettable fuse of 0.75A.
During work, power supply enters among mu balanced circuit IC1 and the IC2 through protecting component Fu, and IC1 is a relation in parallel with IC3, and when electric current greater than 0.75A the time, Fu disconnects, and after electric current recovered, Fu connected once more; Power supply enters and becomes 3.3V by 5V among the IC1 and enter usb data interface chip IC2 again, power supply enters among the IC3 and to become 3.3V by 5V and enter usb data interface chip IC4 filter capacitor again and filter the high frequency clutter, quality power is provided for usb data interface chip IC2, IC4, IC2 has strengthened the electric current and the voltage amplitude of data signals transmitted, the stray capacitance that compensation produces because of long distance line is to the decay of data signals transmitted, thereby realize the finite distance transmission, IC4 is again with electric current and voltage reduction, holding signal.When the distance that requires in 25 meters, also can select for use common quad as transfer wire.
Claims (6)
1. one kind has the USB interface device from the recovery and protection function, it is characterized in that: this device comprises host side USB part and equipment end USB part, and the USB cable that connects two parts; Host side USB partly comprises host side USB interface (CN1), the host side data processing unit that joins with host side USB interface (CN1); Equipment end USB partly comprises equipment end USB interface (CN2), the equipment end data processing unit that joins with equipment end USB interface (CN2); The power pins of host side USB interface (CN1) is connected through USB cable with the equipment end data processing unit with the power pins and the host side data processing unit of equipment end USB interface (CN2); Be serially connected with protecting component (Fu) on the power pins of host side USB interface (CN1).
2. the USB interface device that has from the recovery and protection function according to claim 1, it is characterized in that: the host side data processing unit comprises the mu balanced circuit (IC1) that is connected with the power pins of host side USB interface (CN1), the usb data interface chip (IC2) that is connected with the data pin and the mu balanced circuit (IC1) of host side USB interface (CN1); The equipment end data processing unit comprises the mu balanced circuit (IC3) that is connected with the power pins of equipment end USB interface (CN2), the usb data interface chip (IC4) that is connected with the data pin and the mu balanced circuit (IC3) of equipment end USB interface (CN2).
3. the USB interface device that has from the recovery and protection function according to claim 1 is characterized in that: USB cable is common quad.
4. the USB interface device that has from the recovery and protection function according to claim 1 is characterized in that: USB cable is eight core netting twines.
5. the USB interface device that has from the recovery and protection function according to claim 4 is characterized in that: in 8 lines of eight core netting twines, it is that ground wire, 2 lines are that signal wire, 2 lines are electric power connection line that 4 lines are arranged.
6. the USB interface device that has from the recovery and protection function according to claim 1 and 2 is characterized in that: mu balanced circuit (IC1) and mu balanced circuit (IC3) are equipped with one group of filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200876 CN200965683Y (en) | 2006-10-31 | 2006-10-31 | USB interface device with self-restoring protective functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200876 CN200965683Y (en) | 2006-10-31 | 2006-10-31 | USB interface device with self-restoring protective functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200965683Y true CN200965683Y (en) | 2007-10-24 |
Family
ID=38869699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200876 Expired - Fee Related CN200965683Y (en) | 2006-10-31 | 2006-10-31 | USB interface device with self-restoring protective functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200965683Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312280A (en) * | 2012-03-16 | 2013-09-18 | 鸿富锦精密工业(武汉)有限公司 | USB (Universal Serial Bus) signal amplification circuit |
| CN103369249A (en) * | 2013-07-23 | 2013-10-23 | 苏州汉清计算机有限公司 | Image engraving processor with protection function |
-
2006
- 2006-10-31 CN CN 200620200876 patent/CN200965683Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312280A (en) * | 2012-03-16 | 2013-09-18 | 鸿富锦精密工业(武汉)有限公司 | USB (Universal Serial Bus) signal amplification circuit |
| CN103312280B (en) * | 2012-03-16 | 2016-12-14 | 鸿富锦精密工业(武汉)有限公司 | Usb signal amplifying circuit |
| CN103369249A (en) * | 2013-07-23 | 2013-10-23 | 苏州汉清计算机有限公司 | Image engraving processor with protection function |
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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: 20071024 Termination date: 20101031 |