CN203399123U - Optical fiber data card adopting secondary step-down power supply - Google Patents
Optical fiber data card adopting secondary step-down power supply Download PDFInfo
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- CN203399123U CN203399123U CN201320531665.6U CN201320531665U CN203399123U CN 203399123 U CN203399123 U CN 203399123U CN 201320531665 U CN201320531665 U CN 201320531665U CN 203399123 U CN203399123 U CN 203399123U
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- power supply
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- management chip
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Abstract
The utility model discloses an optical fiber data card adopting secondary step-down power supply, which comprises a first stage power supply management chip, wherein the first stage power supply management chip is connected with a plurality of second stage power supply management chips. The optical fiber data card has the advantages that the power supply adopts a two stage management mode, the plurality of second stage power supply management chips are provided, and the second stage power supply management chips are distributed for supplying power to modules of an FPGA, the modules are separated physically, the optical fiber data card can ensure the power requirements of each module, and can ensured that mutual interference among the modules cannot occur, thereby achieving the optimal performances.
Description
Technical field
The utility model relates to a kind of fiber data card, relates in particular a kind of fiber data card that adopts secondary step-down power supply.
Background technology
Due to optical fiber communication have capacity large, transmit that information quality is high, the advantage such as long transmission distance, stable performance, anti-electromagnetism, resistance to corrosion are strong.And optical-fibre channel is a kind of high performance serial transmission protocol, there is the feature of high broadband, high real-time, become the preferred option of advanced synthesis electronic system of new generation network interconnection.Fiber data card, as the interface of electronic system and network, is the key component that forms electric network, and its research has become important and urgent task.The charger of fiber data card generally adopts the mode of one-level power supply, and 12V power supply is directly each module for power supply of FPGA inside by power management chip, and still, owing to adopting the mode of unified power supply, it exerts an influence each other sometimes.
Utility model content
The utility model provides a kind of fiber data card that adopts secondary step-down power supply, its power acquisition two-stage management mode, and second level power management chip has a plurality of, it is distributed as each module for power supply of FPGA, physically that each module is separated, can guarantee the power requirement of module, guaranteeing again between a module not can phase mutual interference, makes performance reach optimum.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
The fiber data card that adopts secondary step-down power supply, it comprises first order power management chip, is connected with a plurality of second level power management chip on described first order power management chip.In the utility model, to power acquisition two-stage management mode, be that first order power management chip carries out preliminary treatment to the 12V power supply providing, a plurality of second level power management chip is processed power supply respectively again, makes power supply meet the power supply requirement of each module of FPGA.
Further technical scheme is:
Described first order power management chip is PTH12000W.
Described second level power management chip has 3.
Described second level power management chip is respectively PTH08T240W, TPS75525 and TPS75525.
In the utility model, because the power supply requirement of each module in FPGA is inconsistent, the required supply voltage of each module is inconsistent.First order power management chip PTH12000W carries out preliminary treatment to the power supply of the 12V providing, makes it be converted to 5.0V, 6A; Second level power management chip is connected on each pin of FPGA, is its internal module power supply.PTH08T240W is connected on the VCCINT pin of FPGA, and it is converted into 1.0V, 6A by 5.0V, 6A power supply; Two TPS75525 connect respectively on the VCCAUX pin and VCCO pin of FPGA, and it is converted into 2.5V, 4A by 5.0V, 6A power supply.Key modules in FPGA adopts the mode of power supply separately, by they isolation, so can guarantee that modules has enough power physically, can guarantee again can not interfere with each other between them, to arrive optimum performance.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model power acquisition has a plurality ofly with two-stage management mode ，Qie second level power management chip, and it is distributed as each module for power supply of FPGA, physically that each module is separated, can guarantee the power requirement of module, guaranteeing again between a module not can phase mutual interference, makes performance reach optimum.
2, circuit theory of the present utility model is simple, simply adopts the connection in series-parallel of chip to realize.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
[embodiment]
The fiber data card of employing secondary step-down power supply as shown in Figure 1, it comprises first order power management chip, is connected with a plurality of second level power management chip on described first order power management chip.
Described first order power management chip is PTH12000W.
Described second level power management chip has 3.
Described second level power management chip is respectively PTH08T240W, TPS75525 and TPS75525.
The course of work of the present embodiment is as follows:
First order power management chip PTH12000W carries out preliminary treatment to the power supply of the 12V providing, makes it be converted to 5.0V, 6A; Second level power management chip is connected on each pin of FPGA, is its internal module power supply.PTH08T240W is connected on the VCCINT pin of FPGA, and it is converted into 1.0V, 6A by 5.0V, 6A power supply; Two TPS75525 connect respectively on the VCCAUX pin and VCCO pin of FPGA, and it is converted into 2.5V, 4A by 5.0V, 6A power supply.Key modules in FPGA adopts the mode of power supply separately, by they isolation, so can guarantee that modules has enough power physically, can guarantee again can not interfere with each other between them, to arrive optimum performance.
Be as mentioned above embodiment of the present utility model.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, within all falling into protection range of the present utility model.
Claims (4)
1. adopt the fiber data card of secondary step-down power supply, it is characterized in that: it comprises first order power management chip, on described first order power management chip, be connected with a plurality of second level power management chip.
2. the fiber data card of employing secondary step-down power supply according to claim 1, is characterized in that: described first order power management chip is PTH12000W.
3. the fiber data card of employing secondary step-down power supply according to claim 2, is characterized in that: described second level power management chip has 3.
4. the fiber data card of employing secondary step-down power supply according to claim 3, is characterized in that: described second level power management chip is respectively PTH08T240W, TPS75525 and TPS75525.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531665.6U CN203399123U (en) | 2013-08-29 | 2013-08-29 | Optical fiber data card adopting secondary step-down power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531665.6U CN203399123U (en) | 2013-08-29 | 2013-08-29 | Optical fiber data card adopting secondary step-down power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203399123U true CN203399123U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531665.6U Expired - Lifetime CN203399123U (en) | 2013-08-29 | 2013-08-29 | Optical fiber data card adopting secondary step-down power supply |
Country Status (1)
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| CN (1) | CN203399123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427911A (en) * | 2013-08-29 | 2013-12-04 | 成都成电光信科技有限责任公司 | Optical fiber data card for secondary voltage reduction and power supply |
-
2013
- 2013-08-29 CN CN201320531665.6U patent/CN203399123U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427911A (en) * | 2013-08-29 | 2013-12-04 | 成都成电光信科技有限责任公司 | Optical fiber data card for secondary voltage reduction and power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: High tech Zone Tianchen road Chengdu City, Sichuan province 610000 No. 88 Patentee after: CHENGDU UESTC OPTICAL COMMUNICATION CO.,LTD. Address before: High tech Zone Tianchen road Chengdu City, Sichuan province 610000 No. 88 Patentee before: CHENGDU CHENGDIAN GUANGXIN TECHNOLOGY Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: High tech Zone Tianchen road Chengdu City, Sichuan province 610000 No. 88 Patentee after: CHENGDU UESTC OPTICAL COMMUNICATION CO.,LTD. Address before: High tech Zone Tianchen road Chengdu City, Sichuan province 610000 No. 88 Patentee before: CHENGDU CHENGDIAN GUANGXIN TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |