WO2021051445A1

WO2021051445A1 - Ncsi network card power supply system

Info

Publication number: WO2021051445A1
Application number: PCT/CN2019/108457
Authority: WO
Inventors: 张松涛
Original assignee: 广东浪潮大数据研究有限公司
Priority date: 2019-09-20
Filing date: 2019-09-27
Publication date: 2021-03-25
Also published as: CN110649694A; CN110649694B

Abstract

An NCSI network card power supply system. A detection module (4) monitors the state of a server; and a control module (5) controls a working state of an isolation module according to the state of the server to control the outputs of a plurality of power supply modules on a mainboard of the server, so as to select one power supply module to supply power to an NCSI network card. Automatic switching to another power supply module can be performed according to different scenarios, so as to realize the same NCSI network card being able to normally work on multiple different PCIE slots; and one card has multiple purposes, such that the research and development time and the cost are saved, and the universality is high.

Description

A power supply system for NCSI network card

This application claims the priority of a Chinese patent application filed to the Chinese Patent Office on September 20, 2019, the application number is 201910893955.7, and the invention title is "A NCSI Network Card Power Supply System", the entire content of which is incorporated into this application by reference .

Technical field

This application relates to the field of servers, and in particular to a power supply system for an NCSI network card.

Background technique

With the development of cloud computing applications, informatization has gradually covered all areas of society. The network card is the interface between the server and the network for data exchange, and it plays a key role in our daily network communication. As shown in Figure 1, the PCIE (Peripheral Component Interconnect Express, high-speed serial computer expansion bus standard) X8 interface on the motherboard can provide 12V, 3.3V and 3.3V_AUX three groups of power, and the customized PCIE X1 interface can provide 3.3V_AUX power.

Considering that the NCSI (Network Controller Sideband Interface) network card needs to keep working when the server is working or in standby, and when the server is in standby, only 3.3V_AUX power exists, and both 12V and 3.3V have been powered down. It is impossible to supply power to the network card. At the same time, due to power requirements, the existing NCSI network card is generally powered by 3.3V_AUX power provided by a customized PCIE X1 interface. That is, the NCSI network card can only be used on motherboards that include PCIE X8+PCIE X1 (custom interface). If the NCSI network card is connected to a motherboard that includes a standard PCIE X8 interface, the NCSI network card cannot be used from the PCIE X8 interface when the server is in standby. The normal operation of the PCIE X16 interface is the same when the power is taken on, and the existing power supply scheme makes the NCSI network card less versatile.

Therefore, how to provide a solution to the above-mentioned technical problems is a problem that needs to be solved by those skilled in the art at present.

Summary of the invention

The purpose of this application is to provide a NCSI network card power supply system, which realizes that the same NCSI network card can work normally in a variety of different PCIE slots, one card has multiple functions, saves R&D time and costs, and has strong versatility.

To solve the above technical problems, this application provides a NCSI network card power supply system, including:

The voltage conversion module and the first isolation module connected between the first power supply module on the main board and the power supply terminal of the NCSI network card, and the second isolation module connected between the power supply terminal and the second power supply module on the main board , The voltage conversion module is configured to convert the output voltage of the first power supply module into the power supply voltage of the NCSI network card;

The detection module is configured to detect the output voltage of the first power supply module and the second power supply module, and generate a driving instruction according to the output voltage;

A control module, configured to control the working status of the first isolation module and the second isolation module according to the driving instruction, so as to supply power to the NCSI network card through the first power supply module or the second power supply module;

Wherein, the maximum output voltage of the first power supply module is 12V, and the maximum output voltage of the second power supply module is 3.3V.

Preferably, the first power supply module includes a PCIE X8 interface or a PCIE X16 interface, and the second power supply module includes a PCIE X1 interface or a connector.

Preferably, the voltage conversion module includes a BUCK circuit.

Preferably, the first isolation module includes an NMOS tube;

Correspondingly, the second isolation module includes a first PMOS tube;

Wherein, the working state is an on state or an off state.

Preferably, the second isolation module further includes a second PMOS tube connected to the first PMOS tube, for preventing mutual leakage of the second power supply module and the NCSI network card.

Preferably, a first diode is integrated on the first PMOS tube, a second diode is integrated on the second PMOS tube, and the cathode of the first diode is connected to the second diode. The cathode is connected.

Preferably, the detection module includes a first voltage divider module and a first comparator, wherein:

The input terminal of the first voltage dividing module is connected to the output terminal of the first power supply module, the output terminal of the first voltage dividing module is connected to the first input terminal of the first comparator, and the first The second input terminal of the comparator is connected with the first reference voltage source, and the output terminal of the first comparator is connected with the control module.

Preferably, the detection module further includes a second voltage dividing module and a second comparator, wherein:

The input terminal of the second voltage dividing module is connected to the output terminal of the second power supply module, the output terminal of the second voltage dividing module is connected to the first input terminal of the second comparator, and the second The second input terminal of the comparator is connected with a second reference voltage source, and the output terminal of the second comparator is connected with the control module.

Preferably, the first voltage dividing module and the second voltage dividing module each include two resistors.

Preferably, the control module includes an AND gate.

This application provides a NCSI network card power supply system, which monitors the state of the server through a detection module, and the control module controls the working state of the isolation module according to the state of the server to control the output of multiple power supply modules on the server motherboard, thereby selecting one of the power supply modules Power supply for NCSI network card, according to different scenarios, it can automatically switch to another power supply, realizing that the same NCSI network card can work normally on a variety of different PCIE slots, one card has multiple functions, saving research and development time and costs, and has strong versatility.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the prior art and the drawings needed in the embodiments. Obviously, the drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.

Figure 1 is a schematic structural diagram of an NCSI network card power supply system provided by this application;

Figure 2 is a schematic structural diagram of another NCSI network card power supply system provided by this application;

Figure 3 is a schematic diagram of another NCSI network card provided by this application connected to the PCIE X16 interface;

Figure 4 is a schematic structural diagram of another NCSI network card power supply system provided by this application;

FIG. 5 is a schematic structural diagram of a detection module provided by this application.

detailed description

The core of this application is to provide a NCSI network card power supply system, which realizes that the same NCSI network card can work normally in a variety of different PCIE slots. One card has multiple functions, which saves R&D time and costs, and has strong versatility.

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

With the development of cloud computing applications, informatization has gradually covered all areas of society. The network card is the interface between the server and the network for data exchange, and it plays a key role in our daily network communication. Considering that the current NCSI network card can only be used on motherboards that include PCIE X8+PCIE X1 (custom interface), if the NCSI network card is connected to a motherboard that includes a standard PCIE X8 interface or PCIE X16 interface, the NCSI network card will be used when the server is on standby. Unable to get power and unable to work normally. Based on the various problems of the above-mentioned related technologies, the present application provides a new NCSI network card power supply system through the following embodiments, which can realize that the same NCSI network card can work normally in a variety of different PCIE slots, and one card can be used for multiple purposes, saving R&D. Time and cost, the purpose of enhancing versatility.

The following describes in detail an NCSI network card power supply system provided by this application.

Please refer to Figure 1. Figure 1 is a schematic structural diagram of a NCSI network card power supply system provided by this application, including:

The voltage conversion module 1 and the first isolation module 2 connected between the first power supply module on the main board and the power supply terminal of the NCSI network card, and the second isolation module 3 connected between the power supply terminal and the second power supply module on the main board, The voltage conversion module 1 is used to convert the output voltage of the first power supply module into the power supply voltage of the NCSI network card;

Specifically, the first power supply module may include a PCIE X8 interface or a PCIE X16 interface on the motherboard, and the second power supply module may include a PCIE X1 interface or connector on the motherboard. Considering that the maximum output voltage of the PCIE X8 interface or PCIE X16 interface is 12V, between the first power supply module and the power supply terminal of the NCSI network card, a voltage conversion module 1 is provided in this application to convert the 12V voltage to 3.3V. , In order to supply power to the NCSI network card. With the solution of this application, the motherboard sets two power supply circuits for the NCSI network card. In order to prevent the two power supply circuits from interfering with each other and the existence of string power and other conditions that affect the normal operation of the server, an isolation module is also installed in each power supply circuit to isolate The function of the module is equivalent to a switch. When it is turned on, its power supply circuit supplies power to the NCSI network card, and when it is turned off, its power supply circuit no longer supplies power to the NCSI network card.

As shown in Figure 2, the first isolation module 2 can specifically use the NMOS transistor Q1, and the second isolation module 3 can specifically use the PMOS transistor. The NMOS transistor Q1 isolates the 3.3V power supply and the 3.3V_Dual power supply (that is, the power supply of the NCSI network card). , The anode of the integrated diode of the NMOS tube Q1 is connected to the output terminal of the voltage conversion module 1, and the cathode of the diode is connected to the NCSI network card, and the current flow is from the voltage conversion module 1 to the NCSI network card, so as to ensure that there is no power at 12V in the sleep mode. So that there is no power for 3.3V, 3.3V_Dual cannot reverse flow.

The detection module 4 is used to detect the output voltage of the first power supply module and the second power supply module, and generates a driving instruction according to the output voltage; the control module 5 is used to control the first isolation module 2 and the second isolation module 3 according to the driving instruction Working state, so as to supply power to the NCSI network card through the first power supply module or the second power supply module;

It is understandable that when the NCSI network card is connected to the PCIE X8 interface or the PCIE X16 interface, the power supply of the NCSI network card is provided by the 12V power of the interface. When the NCSI network card is connected to the PCIE X8+PCIE X1 interface, if the server is working normally, PCIE The 12V of the X8 interface and the 3.3V_AUX of the PCIE X1 interface are both high, which controls the 12V of the PCIE X8 interface to give priority to power. When the server enters the standby state, the 12V of the PCIE X8 interface is powered off and switched to the 3.3V_AUX of the PCIE X1 interface. NCSI network card power supply, in order to meet the current demand of the NCSI network card when working at full power, the power supply priority of the PCIE X8 interface is higher than the power supply priority of the PCIE X1 interface.

Specifically, the output voltages of the first power supply module and the second power supply module are monitored by the detection module 4. If the output voltage of the first power supply module is close to the target voltage (12V), the first driving instruction is output. The output voltage drops to a certain value (less than 12V). At this time, it can be determined that the server enters the standby state, and the second drive instruction is output. The control module 5 controls the working status of the first isolation module 2 and the second isolation module 3 according to the received drive instruction. . Specifically, if the control module 5 receives the first drive instruction, it means that the server is operating normally. In order to meet the current demand of the NCSI network card at full power operation, the NMOS transistor Q1 is controlled to be turned on, and the first PMOS transistor Q2 is controlled to be turned off, so as to pass the first drive. A power supply module supplies power to the NCSI network card. If the control module 5 receives the second drive instruction, it means that the server enters the standby state at this time and the power supply needs to be switched. The control module 5 controls the NMOS transistor Q1 to turn off and at the same time controls the first PMOS transistor Q2 Turn on, so that the second power supply module supplies power to the NCSI network card. When the server transitions from the standby state to the working state, the detection module 4 can monitor that the output voltage of the first power supply module rises, and when it rises to a preset value, it generates a first drive signal so that the control module 5 can control the output voltage according to the first power supply module. The driving signal controls the NMOS transistor Q1 to turn on, and controls the first PMOS transistor Q2 to turn off, so that the first power supply module re-powers the NCSI network card. Using the power supply solution provided in this application can ensure that the NCSI network card works on PCIE X8+PCIE X1 (customized interface), and can also make the NCSI network card work normally on the standard PCIE X8 interface or the standard PCIEX16 interface.

In addition, this application does not switch to the second power supply module to supply power to the NCSI network card when the first power supply module is completely powered off. When the downward trend of the output voltage of the first power supply module meets the switching conditions, it switches to another one. Circuit, so as to ensure the efficiency of the NCSI network card and the reliability of the server system.

On the basis of the above embodiment:

As a preferred embodiment, the voltage conversion module 1 includes a BUCK circuit.

Specifically, the voltage conversion module 1 may specifically adopt a BUCK circuit. The BUCK circuit has good dynamic characteristics, simple circuit structure, and fewer components required, which reduces the cost of the application to a certain extent.

As a preferred embodiment, the second isolation module 3 further includes a second PMOS tube Q3 connected to the first PMOS tube Q2, for preventing mutual leakage of the second power supply module and the NCSI network card.

As a preferred embodiment, a first diode is integrated on the first PMOS tube Q2, a second diode is integrated on the second PMOS tube Q3, and the cathode of the first diode is connected to the second diode. Cathode connection.

Specifically, referring to Figure 3, considering that when the NCSI network card is connected to the standard PCIE X16 slot, the gold finger of PCIE X1 will be inserted into the signal pin of PCIE X16. Based on the above solution, 3.3V_DUAL It will flow back to the power supply golden finger of PCIE X1 through the integrated diode of the first PMOS tube Q2, which will cause the 3.3V voltage to be connected to the signal pin on PCIE X16, which may burn the CPU or short-circuit the ground. In order to prevent the occurrence of voltage reverse and short circuit conditions, referring to Figure 4, this application adds another PMOS (ie, the second PMOS transistor Q3) to the PCIE X1 power supply circuit, the integrated diode of the first PMOS transistor Q2 and the second PMOS The integrated diode of the tube Q3 adopts a "back-to-back" or "head-to-head" connection mode (Figure 4 uses a head-to-head connection mode), which can effectively prevent the problem of mutual conduction between the voltages on both sides.

As a preferred embodiment, the detection module 4 includes a first voltage divider module 41 and a first comparator 42, wherein:

The input terminal of the first voltage dividing module 41 is connected with the output terminal of the first power supply module, the output terminal of the first voltage dividing module 41 is connected with the first input terminal of the first comparator 42, and the second input of the first comparator 42 The terminal is connected to the first reference voltage source, and the output terminal of the first comparator 42 is connected to the control module 5.

As a preferred embodiment, the detection module 4 further includes a second voltage divider module and a second comparator, wherein:

The input terminal of the second voltage dividing module is connected with the output terminal of the second power supply module, the output terminal of the second voltage dividing module is connected with the first input terminal of the second comparator, and the second input terminal of the second comparator is connected with the second The reference voltage source is connected, and the output terminal of the second comparator is connected to the control module 5.

As a preferred embodiment, both the first voltage dividing module 41 and the second voltage dividing module include two resistors.

Specifically, the function of the detection module 4 can be implemented by a voltage divider module and a comparator. Take the first voltage divider module 41 and the comparator as an example for description. For the specific connection relationship, refer to FIG. 5, the first voltage divider The input terminal of the module 41 is connected to the first power supply module, the output terminal of the first voltage divider module 41 is connected to the non-inverting input terminal of the first comparator 42, and the inverting input terminal of the first comparator 42 is connected to the reference voltage source. The voltage at the non-inverting input terminal of the first comparator 42 is greater than the voltage at its inverting input terminal, and the first comparator 42 outputs a high level. When the voltage at the non-inverting input terminal of the first comparator 42 is less than the voltage at its inverting input terminal, the first comparator 42 The device 42 outputs a low level, and the working schemes of the second comparator and the second voltage divider module are the same. Among them, the reference voltages output by the first reference power supply and the second reference power supply need to be set according to actual engineering needs, and this application does not make specific limitations here.

Specifically, for cost considerations, the voltage divider module can be implemented by the first resistor R1 and the second resistor R2 as shown in FIG. 5, and the common end of the two resistors is used as the output terminal of the voltage divider module. Of course, the voltage divider module The module can also be realized by a sliding rheostat.

As a preferred embodiment, the control module 5 includes an AND gate.

Specifically, the control module 5 can be implemented by an AND gate. The output terminal of the first comparator 42 and the output terminal of the second comparator are respectively connected to the two input terminals of the AND gate. When the first comparator 42 outputs a high level, The output of the AND gate is high. At this time, the gate of the NMOS transistor Q1 receives a high level, the NMOS transistor Q1 is turned on, the gate of the PMOS transistor receives a high level, and the PMOS transistor is turned off. When the first comparator 42 outputs a low level, so the output of the AND gate is a low level. At this time, the gate of the NMOS tube Q1 receives a low level, the NMOS tube Q1 is turned off, and the gate of the PMOS tube receives a low level, and the PMOS tube Conduction.

It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is any such actual relationship or sequence between operations. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A power supply system for an NCSI network card, which is characterized in that it comprises:

The voltage conversion module and the first isolation module connected between the first power supply module on the main board and the power supply terminal of the NCSI network card, and the second isolation module connected between the power supply terminal and the second power supply module on the main board , The voltage conversion module is configured to convert the output voltage of the first power supply module into the power supply voltage of the NCSI network card;

The detection module is configured to detect the output voltage of the first power supply module and the second power supply module, and generate a driving instruction according to the output voltage;

A control module, configured to control the working status of the first isolation module and the second isolation module according to the driving instruction, so as to supply power to the NCSI network card through the first power supply module or the second power supply module;

Wherein, the maximum output voltage of the first power supply module is 12V, and the maximum output voltage of the second power supply module is 3.3V.
The NCSI network card power supply system according to claim 1, wherein the first power supply module includes a PCIE X8 interface or a PCIE X16 interface, and the second power supply module includes a PCIE X1 interface or a connector.
The NCSI network card power supply system according to claim 1, wherein the voltage conversion module comprises a BUCK circuit.
The NCSI network card power supply system according to claim 1, wherein the first isolation module comprises an NMOS tube;

Correspondingly, the second isolation module includes a first PMOS tube;

Wherein, the working state is an on state or an off state.
The NCSI network card power supply system according to claim 4, wherein the second isolation module further comprises a second PMOS tube connected to the first PMOS tube for preventing the second power supply module from interacting with the NCSI network cards are leaking electricity to each other.
The NCSI network card power supply system according to claim 5, wherein a first diode is integrated on the first PMOS tube, a second diode is integrated on the second PMOS tube, and the first The cathode of the diode is connected to the cathode of the second diode.
The NCSI network card power supply system according to claim 1, wherein the detection module comprises a first voltage divider module and a first comparator, wherein:

The input terminal of the first voltage dividing module is connected to the output terminal of the first power supply module, the output terminal of the first voltage dividing module is connected to the first input terminal of the first comparator, and the first The second input terminal of the comparator is connected with the first reference voltage source, and the output terminal of the first comparator is connected with the control module.
The NCSI network card power supply system according to claim 7, wherein the detection module further comprises a second voltage divider module and a second comparator, wherein:

The input terminal of the second voltage dividing module is connected to the output terminal of the second power supply module, the output terminal of the second voltage dividing module is connected to the first input terminal of the second comparator, and the second The second input terminal of the comparator is connected with a second reference voltage source, and the output terminal of the second comparator is connected with the control module.
The NCSI network card power supply system according to claim 8, wherein the first voltage divider module and the second voltage divider module each include two resistors.
The NCSI network card power supply system according to claim 8, wherein the control module includes an AND gate.