CN104142727A - Designing method of PCIE management network card power supply - Google Patents
Designing method of PCIE management network card power supply Download PDFInfo
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- CN104142727A CN104142727A CN201410388061.XA CN201410388061A CN104142727A CN 104142727 A CN104142727 A CN 104142727A CN 201410388061 A CN201410388061 A CN 201410388061A CN 104142727 A CN104142727 A CN 104142727A
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- 230000005611 electricity Effects 0.000 claims description 11
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The invention provides a designing method of a PCIE management network card power supply. When a main board is powered off, a PREST_N signal in the standard PCIE can be immediately changed from low level to high level and can be always maintained at the high level, when the main board is powered off, the PREST_N can be changed from high level to low level and be always maintained at low level; P3V3_AUX is one STBY power of the main board, and P3V3_PCIE and P12V_PCIE are power on a PCIE groove and are generated after the main board is powered on; PCIE_PREST_N is a PREST_N signal in the standard PCIE. Compared with the prior art, the designing method of the PCIE management network card power supply effectively utilizes the variation of the PERST_N signal in the PCIE to design a power supply switching circuit so as to optimize the existing management network card power supply circuit.
Description
Technical field
The present invention relates to technical field of electronic equipment, specifically a kind of method for designing of PCIE management network interface card power supply.
Background technology
Current, network interface card is seized of very important position in server system, and integrated function gets more and more on network interface card, such as: utilize the whole server of network interface card to manage (monitoring of switching on and shutting down and health parameters etc.).Utilizing network interface card to realize just needs network interface card just standby before server start to the management of server, that is to say managerial grid be stuck in STBY(service power on do not have open state) just in running order.This just requires managerial grid card just must be supplied by server master board STBY electricity.And generally the current value of server master board STBY electricity is all less, be difficult to meet the power consumption demand of network interface card in full load, generally just need to increase the lowest high-current value of the output of mainboard STBY electricity, or select the network interface card of low-power consumption.The line cost that the first situation need to be revised mainboard is larger, and the meeting in performance of the second network interface card is given a discount.
Because being stuck under STBY state, understands under low power consumpting state managerial grid, STBY electricity can meet in this state, in light of this situation, propose herein to utilize in Standard PC IE, a kind of electrical source exchange circuit is designed in the variation of PREST_N signal low and high level when main-board on-off, after start, can be seamless to the STBY electricity (P3V3_AUX) of network interface card power supply be switched to mainboard PCIE groove PCIE_P3V3.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the method for designing of a kind of PCIE management network interface card power supply is provided, and it utilizes the variation of PERST_N signal in PCIE to design a kind of electrical source exchange circuit and has realized the optimization to existing management network interface card supply line.
Technical scheme of the present invention realizes in the following manner, and its feature is:
(1), PREST_N signal is when mainboard is started shooting in Standard PC IE, PREST_N can have low level be varied to high level and maintain high level always immediately, and PREST_N can be become low level and be maintained low level by high level when mainboard shuts down;
(2), P3V3_AUX is a STBY electricity of mainboard, P3V3_PCIE, P12V_PCIE are that the electricity on PCIE groove all generates after mainboard start; PCIE_PREST_N is exactly the PREST_N signal in Standard PC IE;
(3), mainboard is not when start shooting, PCIE_PREST_N is low level, metal-oxide-semiconductor Q1 closes, the gate pole of Q2 is that high level Q2 opens, the N MOS of U4 closes, P MOS opens, at this moment, the power supply P3V3 of network interface card demand is just provided by P3V3_AUX; On the contrary, after mainboard start, PCIE_PREST_N is for to become high level by low level, and Q1 opens, and the gate pole of Q2 is just low level, and Q2 closes, and the P MOS of U4 closes, and N MOS opens; At this moment, the power supply P3V3 of network interface card demand is just provided by P3V3_PCIE; Due to PCIE_PREST_N signal change when the switching on and shutting down very fast simultaneously at P3V3 carry the electric capacity greatly of a 270uf guaranteed to switch in change in voltage steady, the situation of the voltage instability that can not bring due to switching, causes the shutdown of network interface card.
Above-mentioned due to PCIE_PREST_N signal change when the switching on and shutting down very fast simultaneously at P3V3 carry the electric capacity greatly of a 270uf guaranteed to switch in change in voltage steady, the situation of the voltage instability that can not bring due to switching, causes restarting of network interface card.
Advantage of the present invention is:
The method for designing of a kind of PCIE management network interface card power supply of the present invention compared to the prior art, effectively utilize the variation of PERST_N signal in PCIE to design a kind of electrical source exchange circuit and realized the optimization to existing management network interface card supply line, and the present invention also have reasonable in design, simple in structure, be easy to processing, the feature such as easy to use, thereby, there is good use value.
Accompanying drawing explanation
Fig. 1 is for network interface card before and after start is for electrical schematic.
Embodiment
Below in conjunction with accompanying drawing, the method for designing of a kind of PCIE management network interface card power supply of the present invention is described in detail below.
As shown in Figure 1, the method for designing of a kind of PCIE management network interface card power supply of the present invention, its feature is:
(1), PREST_N signal is when mainboard is started shooting in Standard PC IE, PREST_N can have low level be varied to high level and maintain high level always immediately, and PREST_N can be become low level and be maintained low level by high level when mainboard shuts down;
(2), P3V3_AUX is a STBY electricity of mainboard, P3V3_PCIE, P12V_PCIE are that the electricity on PCIE groove all generates after mainboard start; PCIE_PREST_N is exactly the PREST_N signal in Standard PC IE;
(3), mainboard is not when start shooting, PCIE_PREST_N is low level, metal-oxide-semiconductor Q1 closes, the gate pole of Q2 is that high level Q2 opens, the N MOS of U4 closes, P MOS opens, at this moment, the power supply P3V3 of network interface card demand is just provided by P3V3_AUX; On the contrary, after mainboard start, PCIE_PREST_N is for to become high level by low level, and Q1 opens, and the gate pole of Q2 is just low level, and Q2 closes, and the P MOS of U4 closes, and N MOS opens; At this moment, the power supply P3V3 of network interface card demand is just provided by P3V3_PCIE; Due to PCIE_PREST_N signal change when the switching on and shutting down very fast simultaneously at P3V3 carry the electric capacity greatly of a 270uf guaranteed to switch in change in voltage steady, the situation of the voltage instability that can not bring due to switching, causes the shutdown of network interface card or restarts.
Its processing and fabricating of method for designing of a kind of PCIE management network interface card power supply of the present invention is very simple and convenient, can process to specifications shown in accompanying drawing.
Except the technical characterictic described in instructions, be the known technology of those skilled in the art.
Claims (2)
1. PCIE manages a method for designing for network interface card power supply, it is characterized in that:
(1), PREST_N signal is when mainboard is started shooting in Standard PC IE, PREST_N can have low level be varied to high level and maintain high level always immediately, and PREST_N can be become low level and be maintained low level by high level when mainboard shuts down;
(2), P3V3_AUX is a STBY electricity of mainboard, P3V3_PCIE, P12V_PCIE are that the electricity on PCIE groove all generates after mainboard start; PCIE_PREST_N is exactly the PREST_N signal in Standard PC IE;
(3), mainboard is not when start shooting, PCIE_PREST_N is low level, metal-oxide-semiconductor Q1 closes, the gate pole of Q2 is that high level Q2 opens, the N MOS of U4 closes, P MOS opens, at this moment, the power supply P3V3 of network interface card demand is just provided by P3V3_AUX; On the contrary, after mainboard start, PCIE_PREST_N is for to become high level by low level, and Q1 opens, and the gate pole of Q2 is just low level, and Q2 closes, and the P MOS of U4 closes, and N MOS opens; At this moment, the power supply P3V3 of network interface card demand is just provided by P3V3_PCIE; Due to PCIE_PREST_N signal change when the switching on and shutting down very fast simultaneously at P3V3 carry the electric capacity greatly of a 270uf guaranteed to switch in change in voltage steady, the situation of the voltage instability that can not bring due to switching, causes the shutdown of network interface card.
2. the method for designing that a kind of PCIE according to claim 1 manages network interface card power supply, it is characterized in that due to PCIE_PREST_N signal change when the switching on and shutting down very fast simultaneously at P3V3 carry the electric capacity greatly of a 270uf guaranteed to switch in change in voltage steady, the situation of the voltage instability that can not bring due to switching, causes restarting of network interface card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388061.XA CN104142727A (en) | 2014-08-08 | 2014-08-08 | Designing method of PCIE management network card power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410388061.XA CN104142727A (en) | 2014-08-08 | 2014-08-08 | Designing method of PCIE management network card power supply |
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| CN104142727A true CN104142727A (en) | 2014-11-12 |
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| CN201410388061.XA Pending CN104142727A (en) | 2014-08-08 | 2014-08-08 | Designing method of PCIE management network card power supply |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518886A (en) * | 2014-12-11 | 2015-04-15 | 曙光信息产业(北京)有限公司 | Network wakeup method and device of server |
| CN105468363A (en) * | 2015-11-19 | 2016-04-06 | 浪潮电子信息产业股份有限公司 | Method for enhancing compatibility of server mainboard and different network cards |
| CN105589542A (en) * | 2014-11-13 | 2016-05-18 | 鸿富锦精密工业(武汉)有限公司 | Interface power supply circuit |
| CN106201541A (en) * | 2016-07-20 | 2016-12-07 | 浪潮电子信息产业股份有限公司 | Method for adjusting network card starting mode by using baseboard management controller |
| CN106502362A (en) * | 2016-10-21 | 2017-03-15 | 郑州云海信息技术有限公司 | A kind of electric supply installation of four component server and its method for designing |
| CN113759766A (en) * | 2021-07-29 | 2021-12-07 | 苏州浪潮智能科技有限公司 | Intelligent network card capable of being independently powered on and started and intelligent network card powered on starting method |
-
2014
- 2014-08-08 CN CN201410388061.XA patent/CN104142727A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589542A (en) * | 2014-11-13 | 2016-05-18 | 鸿富锦精密工业(武汉)有限公司 | Interface power supply circuit |
| CN104518886A (en) * | 2014-12-11 | 2015-04-15 | 曙光信息产业(北京)有限公司 | Network wakeup method and device of server |
| CN105468363A (en) * | 2015-11-19 | 2016-04-06 | 浪潮电子信息产业股份有限公司 | Method for enhancing compatibility of server mainboard and different network cards |
| CN105468363B (en) * | 2015-11-19 | 2018-06-26 | 浪潮电子信息产业股份有限公司 | Method for enhancing compatibility of server mainboard and different network cards |
| CN106201541A (en) * | 2016-07-20 | 2016-12-07 | 浪潮电子信息产业股份有限公司 | Method for adjusting network card starting mode by using baseboard management controller |
| CN106201541B (en) * | 2016-07-20 | 2019-10-01 | 浪潮电子信息产业股份有限公司 | Method for adjusting network card starting mode by using baseboard management controller |
| CN106502362A (en) * | 2016-10-21 | 2017-03-15 | 郑州云海信息技术有限公司 | A kind of electric supply installation of four component server and its method for designing |
| CN113759766A (en) * | 2021-07-29 | 2021-12-07 | 苏州浪潮智能科技有限公司 | Intelligent network card capable of being independently powered on and started and intelligent network card powered on starting method |
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Application publication date: 20141112 |
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| WD01 | Invention patent application deemed withdrawn after publication |