CN202551059U - Multifunctional USB (Universal Serial Bus) network card - Google Patents
Multifunctional USB (Universal Serial Bus) network card Download PDFInfo
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- CN202551059U CN202551059U CN2012201232322U CN201220123232U CN202551059U CN 202551059 U CN202551059 U CN 202551059U CN 2012201232322 U CN2012201232322 U CN 2012201232322U CN 201220123232 U CN201220123232 U CN 201220123232U CN 202551059 U CN202551059 U CN 202551059U
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- control chip
- charging circuit
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Abstract
The utility model discloses a multifunctional USB (Universal Serial Bus) network card, which comprises a master control chip, a quick charging circuit, a USB terminal, a plurality of USB ports, a direct-current converter and a power source access port, wherein the power source access port is respectively connected with the quick charging circuit and the direct-current converter, the output end of the direct-current converter is connected with the master control chip, the master control chip is connected with an LAN (local area network) interface, the master control chip is also connected with a plurality of USB ports, a data pin of the USB terminal is connected with the master control chip, and a power source pin and a grounding pin of the USB terminal are respectively communicated with the power source access port. According to the multifunctional USB network card, the function of a USB concentrator is realized on the master control chip, and a scheme of the quick charging circuit is combined, so that the whole USB network card has the function of the USB concentrator, and simultaneously has the function of quick charge. The quick charge of the quick charging circuit is realized by a resistive subdivision structure, the voltage is stable, the circuit is easy to realize, and the cost is low.
Description
Technical field
The utility model relates to the technical field of electronic equipment with USB port, is specifically related to a kind of Multifunctional USB network interface card.
Background technology
USB (Universal Serial BUS) network interface card is that a kind of interface is the network interface card of USB; It is the network components that is operated in data link layer; It is the interface that connects computer and transmission medium in the local area network (LAN); Can not only realize and the local area network (LAN) transmission medium between physical connection and signal of telecommunication coupling, also relate to transmission and the reception of frame, encapsulation and opening, medium access control, the encoding and decoding of data and the function of metadata cache etc. of frame.Because the USB network interface card can take a USB port of computer in use; And the preposition USB port limited amount of many computers can cause very big influence for the use of other USB access devices, especially reads or write related data information in the USB access device time; A usb hub possibly inserted again; And when having the equipment charge of USB port, also can too much be taken because of the USB port of computer, can not be in time to equipment charge.
The utility model content
The utility model provides a kind of Multifunctional USB network interface card, can solve data information transfer and the problem of charging simultaneously.
The utility model provides a kind of Multifunctional USB network interface card, comprising: main control chip, quick-charging circuit; The USB terminal, a plurality of USB ports, DC converter and power access end mouth; Said power access end mouth links to each other with quick-charging circuit and DC converter respectively; The output of DC converter is connected to main control chip, is connected with LAN interface on the said main control chip, and main control chip also is connected with a plurality of USB ports; The data pin of USB terminal is connected with main control chip, and the power pins of USB terminal and grounding pin are communicated with the power access end mouth respectively.
Preferably; Said quick-charging circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4; Resistance R 1 is connected with resistance R 3; Resistance R 2 is connected with resistance R 4, is connected between power access end mouth and the ground after the series arm parallel connection of the series arm of resistance R 1, resistance R 3 and resistance R 2, resistance R 4, and the series connection node of the series connection node of power access end mouth, resistance R 1 and resistance R 3, resistance R 2 and resistance R 4 and earth point be common to constitute a USB charging port.
Technique scheme can be found out; Because the utility model embodiment is employed in the function that realizes usb hub on the main control chip; And the scheme of combination quick-charging circuit, therefore make whole USB network interface card have the function of usb hub, have the function of quick charge simultaneously.
And quick-charging circuit adopts the electric resistance partial pressure structure to realize quick charge, and voltage is stable, and circuit is easy to realize that cost is low.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of Multifunctional USB network interface card among the utility model embodiment 1;
Fig. 2 is the circuit theory diagrams of quick-charging circuit among the utility model embodiment 1.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment:
The utility model embodiment provides a kind of Multifunctional USB network interface card, and is as shown in Figure 1, main control chip 1; Quick-charging circuit 2, USB terminal 6, a plurality of USB ports 7; DC converter 3 and power access end mouth 4, said power access end mouth 4 links to each other with quick-charging circuit 2 and DC converter 3 respectively, and the output of DC converter 3 is connected to main control chip 1; Be connected with LAN interface 5 on the said main control chip 1; Main control chip 1 also is connected with a plurality of USB ports 7, and the data pin of USB terminal 6 is connected with main control chip 1, and the power pins of USB terminal and grounding pin are communicated with power access end mouth 4 respectively.Particularly, the number of the USB port 7 that links to each other with main control chip 1 among the utility model embodiment is 3, decides the number of USB port according to usb data disposal ability on the main control chip 1 and data pin number.
The operating voltage of main control chip 1 is general chip voltage; In the selection of DC converter, select for use 5V to change the DC converter of 3.3V; What therefore power access end mouth 4 was connected is the adapter of a 5V, can certainly insert the adapter of other voltage outputs, only need do corresponding replacing to DC converter and get final product; The access voltage of power access end mouth 4 converts the operating voltage of standard chips to via DC converter, guarantees the precision of chip operating voltage.
Main control chip adopts the integrated single-chip of AX88760 that AsiaINFO's electronics is released among the utility model embodiment.USB terminal 6 is the same with the pin arrangement mode of USB port 7, is power pins, data pin D-and data pin D+ and grounding pin from top to bottom successively.Data pin D-on the USB terminal 6 and data pin D+ are connected respectively on the respective pins of main control chip 1; Simultaneously; The power pins of USB terminal 6 is communicated with power access end mouth 4 respectively with grounding pin; When the USB terminal is inserted into USB interface of computer, by the Multifunctional USB network interface card power supply of USB interface of computer in the utility model embodiment.Equally, the pin of USB port 7 also is connected respectively on the respective pins of main control chip 1.USB terminal 4 is inserted on the USB interface of computer equipment, and USB port is used for the access of other peripheral USB interface equipment.Pin arrangements mode for LAN interface 5 then can repeat no more with reference to available data here.Each pin of LAN interface 5 is connected on the main control chip 1 equally, realizes data transaction by main control chip 1.
In conjunction with Fig. 2; Quick-charging circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4; Resistance R 1 is connected with resistance R 3; Resistance R 2 is connected with resistance R 4, the series arm of resistance R 1, resistance R 3 be connected to the power access end mouth after the series arm of resistance R 2, resistance R 4 is parallelly connected, the series connection node of power access end mouth, resistance R 1 and resistance R 3, resistance R 2 and the series connection node of resistance R 4 be common to constitute a USB charging port 21.It is understandable that the power access end mouth has power end and earth terminal, among Fig. 2, the power end of power access end mouth is the VCC end, and the earth terminal of power access end mouth is the GND end.In order to prevent that equipment from producing static, its GND end is communicated with the earth.
With respect to the prior USB network interface card; Multifunctional USB network interface card among the utility model embodiment has realized that usb hub, quick charge are the USB network interface card of one, and the quick-charging circuit that the utility model embodiment adopts is simple in structure, is easy to realize; Voltage is stable during charging, and charging fast.
More than Multifunctional USB network interface card that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper the principle and the execution mode of the utility model are set forth, the explanation of above embodiment just is used to help to understand the core concept of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (2)
1. the Multifunctional USB network interface card is characterized in that, comprising: main control chip; Quick-charging circuit, USB terminal, a plurality of USB ports; DC converter and power access end mouth, said power access end mouth links to each other with quick-charging circuit and DC converter respectively, and the output of DC converter is connected to main control chip; Be connected with LAN interface on the said main control chip; Main control chip also is connected with a plurality of USB ports, and the data pin of USB terminal is connected with main control chip, and the power pins of USB terminal and grounding pin are communicated with the power access end mouth respectively.
2. Multifunctional USB network interface card as claimed in claim 1; It is characterized in that: said quick-charging circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4; Resistance R 1 is connected with resistance R 3; Resistance R 2 is connected with resistance R 4; Be connected between power access end mouth and the ground after the series arm parallel connection of the series arm of resistance R 1, resistance R 3 and resistance R 2, resistance R 4, power access end mouth, resistance R 1 constitute the USB charging port with series connection node, the resistance R 2 of resistance R 3 with the series connection node and the earth point of resistance R 4 jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201232322U CN202551059U (en) | 2012-03-28 | 2012-03-28 | Multifunctional USB (Universal Serial Bus) network card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201232322U CN202551059U (en) | 2012-03-28 | 2012-03-28 | Multifunctional USB (Universal Serial Bus) network card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202551059U true CN202551059U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201232322U Expired - Fee Related CN202551059U (en) | 2012-03-28 | 2012-03-28 | Multifunctional USB (Universal Serial Bus) network card |
Country Status (1)
| Country | Link |
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| CN (1) | CN202551059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017125052A1 (en) * | 2016-01-19 | 2017-07-27 | 深圳市金田创新科技有限公司 | Storage device having quick-charge function and scalable card-reading storage device |
-
2012
- 2012-03-28 CN CN2012201232322U patent/CN202551059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017125052A1 (en) * | 2016-01-19 | 2017-07-27 | 深圳市金田创新科技有限公司 | Storage device having quick-charge function and scalable card-reading storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160328 |