CN117215396A - Mainboard, computing equipment and control method - Google Patents

Abstract

The embodiment of the application provides a main board, computing equipment and a control method, comprising the following steps: the power supply management unit, the first power supply unit and the second power supply unit; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board; the power management unit is used for controlling the first power supply unit and the second power supply unit; the first power supply unit is used for supplying power to the basic functional area; the second power supply unit is used for supplying power to the main functional area and/or the basic functional area. According to the main board provided by the embodiment of the application, the load of the main board is partitioned, the load of the basic function of the main board is maintained to be an important load, and the normal operation of the load of the basic function area needs to be ensured, so that the load of the basic function area is reliably powered, and the first power supply unit and the second power supply unit can both supply power for the basic function area, namely, the power supply of the basic function area is reliably backed up.

Description

Mainboard, computing equipment and control method

Technical Field

The embodiment of the application relates to the technical field of servers, in particular to a mainboard, computing equipment and a control method.

Background

In the server, a power supply unit (PSU, power Supply Unit) serves as a power conversion circuit for converting alternating current (220V or 110V) or direct current into low-voltage stable direct current required for load operation, such as direct current 12V. The PSU may be designed as a plug-in stand-alone module, or may be integrated directly on the motherboard as a functional module of the motherboard.

As big data are more and more important, therefore, the requirements of the main board power supply of the server are higher and higher, and the power supply requirement of the load cannot be met for the power supply of the main board in the prior art.

Disclosure of Invention

The embodiment of the application provides a main board, computing equipment and a control method, which can supply power according to different requirements of loads and meet the power supply requirements of the loads.

An embodiment of the present application provides a motherboard, including: the power supply management unit, the first power supply unit and the second power supply unit; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board; the power management unit is used for controlling the first power supply unit and the second power supply unit; the first power supply unit is used for supplying power to the basic functional area; the second power supply unit is used for supplying power to the main functional area and/or the basic functional area.

According to the main board provided by the embodiment of the application, the load of the main board is partitioned, the load of the basic function of the main board is maintained to be an important load, and the normal operation of the load of the basic function area needs to be ensured, so that the load of the basic function area is reliably powered, and the first power supply unit and the second power supply unit can both supply power for the basic function area, namely, the power supply of the basic function area is reliably backed up. In the case of the main functional area of the motherboard, only the second power supply unit supplies power to the main functional area, and backup power supply to the main functional area is not necessary, it should be understood that in special cases, for example, when the second power supply unit fails or has insufficient power, power supply to the main functional area may not be performed.

In one possible implementation, the power of the first power supply unit is smaller than the power of the second power supply unit.

For a compact server with limited space, under the condition of limited power supply space, a plurality of identical power supply units are inconvenient to set. The first power supply unit is a power supply unit with smaller power, the size is relatively smaller, the second power supply unit is a power supply unit with larger power, and the size is relatively larger, so that two different power supply units can be arranged in a limited space, and redundant backup power supply of an important load can be ensured.

The power management unit is used for controlling the first power supply unit to supply power for the basic functional area of the main board in the backup power supply mode; and controlling the second power supply unit to supply power to the main functional area and the basic functional area of the main board.

The main board provided by the embodiment of the application comprises a first power supply unit and a second power supply unit, wherein the first power supply unit only supplies power for the load of the basic functional area, and the second power supply unit can supply power for the load of the basic functional area and the load of the main functional area. Therefore, the load of the basic functional area with high power supply priority can be ensured to realize redundant backup power supply, and when one power supply unit has insufficient electric quantity or fails, the other power supply unit can continue to supply power, so that the load corresponding to the basic functional area can work normally. The main board provided by the embodiment of the application can supply power according to different requirements of different partition loads, and the basic requirements of the loads are met.

A possible implementation manner, the power management unit is further configured to control the first power supply unit to supply power to the basic functional area in a non-backup power supply mode; and controlling the second power supply unit to supply power to the main functional area.

For example, when the first power supply unit is guaranteed to supply enough power, the main board can work in a non-backup power supply mode, and the second power supply unit does not need to supply power to the basic function area, but only supplies power to the main function area.

In one possible implementation manner, if the first power supply unit cannot supply power in the non-backup power supply mode, the power management unit is further configured to control the second power supply unit to supply power to the basic functional area.

The main board provided by the embodiment of the application can forcedly control the second power supply unit to supply power for the basic functional area even in a non-backup power supply mode when the first power supply unit fails to supply power, so that the normal operation of the load of the basic functional area is ensured.

The loading of the basic functional area includes one or more of the following: the system comprises a power management unit, a main board management unit, a communication interface, a switching circuit, a voltage stabilizing circuit and a voltage reducing circuit; the load of the main functional area includes one or more of the following: display card, heating circuit, voltage stabilizing circuit, step-down circuit.

The load of the basic functional area is a load for ensuring basic work of the main board, for example, the power management unit is used for managing power supply time sequence, and the main board management unit is a core control unit of the main board, for example, a BMC; the exchange circuit comprises an interface for communicating the main board with the outside and is used for realizing the communication function. The load of the basic functional area is preferentially required to be supplied with power, and the power supply priority is highest. The load of the main functional area can be temporarily not operated when the power supply is insufficient, and the load operation of the basic functional area is preferentially ensured.

One possible implementation manner is that the first power supply unit is used for being connected with a first external power supply, and the second power supply unit is used for being connected with a second external power supply; when the first external power supply and the second external power supply are sufficient in power supply, the main board works in a backup power supply mode; when the first external power supply fails or the second external power supply is insufficient in power supply, the main board works in a non-backup power supply mode.

The embodiment of the application does not particularly limit whether the first power supply unit and the second power supply unit are connected with the same external power supply or two different external power supplies, and in order to supply power more reliably, the two power supply units are respectively connected with one external power supply.

In one possible implementation manner, the power management unit is further configured to determine whether the second power supply unit supplies power to the basic functional area according to the required power of the main functional area and the required power of the basic functional area.

The main board provided by the embodiment of the application can flexibly control the power supply according to the required power of each load partition, and preferentially supplies power to important loads, so that the power supply of each load partition is more flexible.

The embodiment of the application also provides a computing device, which comprises the main board. For example, the computing device is a server.

The embodiment of the application also provides a control method of the main board, which is applied to the main board, wherein the main board comprises a power management unit, a first power supply unit and a second power supply unit; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board; the method comprises the following steps:

in the backup power supply mode, the power supply management unit controls the first power supply unit to supply power to the basic function area of the main board, and controls the second power supply unit to supply power to the main function area and the basic function area of the main board.

In the non-backup power supply mode, the power management unit controls the first power supply unit to supply power to the basic function area of the main board, and controls the second power supply unit to supply power to the main function area of the main board.

In one possible implementation, the power of the first power supply unit is smaller than the power of the second power supply unit.

A possible implementation manner, a control method provided by an embodiment of the present application further includes: if the first power supply unit cannot supply power in the non-backup power supply mode, the power supply management unit is further configured to control the second power supply unit to supply power to the basic functional area.

One possible implementation manner is that the first power supply unit is used for being connected with a first external power supply, and the second power supply unit is used for being connected with a second external power supply; the control method provided by the embodiment of the application further comprises the following steps: when the first external power supply and the second external power supply are sufficient in power supply, the main board works in a backup power supply mode; when the first external power supply fails or the second external power supply is not supplied enough, the main board works in a non-backup power supply mode.

A possible implementation manner, a control method provided by an embodiment of the present application further includes: and determining whether the second power supply unit supplies power for the basic functional area according to the required power of the main functional area and the required power of the basic functional area.

The advantages of the control method provided by the embodiment of the present application can be referred to the advantages of the above main board, and will not be described herein.

Drawings

Fig. 1 is a schematic diagram of a motherboard according to an embodiment of the present application;

fig. 2 is a schematic diagram of another motherboard according to an embodiment of the present application;

fig. 3 is a schematic diagram of another motherboard according to an embodiment of the present application;

fig. 4 is a schematic diagram of another motherboard according to an embodiment of the present application;

fig. 5 is a schematic diagram of another motherboard according to an embodiment of the present application;

fig. 6 is a schematic diagram of another motherboard according to an embodiment of the present application;

fig. 7 is a schematic power supply diagram of a first external power supply according to an embodiment of the present application when the first external power supply fails;

FIG. 8 is a schematic diagram of power supply when the second external power source provided in the embodiment of the present application fails;

fig. 9 is a schematic diagram of another motherboard according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a computing device provided by an embodiment of the present application;

fig. 11 is a flowchart of a control method of a motherboard according to an embodiment of the present application

Fig. 12 is a flowchart of another control method of a motherboard according to an embodiment of the present application.

Detailed Description

The computing device provided by the embodiment of the application is not particularly limited to the application scene, for example, the computing device is described by taking a server as an example, and is not particularly limited to the type of the server, for example, the computing device can be a rack server or an edge server. The server may be located in a data center or other areas, and the embodiment of the present application is not limited specifically.

Servers, which are one type of computing device, run faster and are more highly loaded than ordinary computers. The server provides computing or application services to other clients (e.g., PCs, smartphones, etc.) in the network. The server has high-speed CPU operation capability, long-time reliable operation, strong external data throughput capability and better expansibility. Servers are classified from the external form into rack-type, blade-type, tower-type and cabinet-type.

The server generally includes a main board and a power supply for supplying power to respective loads of the main board. The embodiment of the application is not particularly limited to the voltage level of the power supply supplied to the main board, and is described by taking direct current 12V as an example.

The embodiment of the application does not particularly limit the application scene of the mainboard, and is specifically introduced by taking the mainboard in the server as an example. The main board is an important circuit board in the server, and comprises a Central Processing Unit (CPU), a controller, a memory, a connector and other components, wherein the controller has limited interfaces, so that the interfaces can be expanded through the connector so as to be convenient for connecting peripheral equipment, such as expanding a USB port, connecting equipment such as a mouse and a keyboard; and the serial data interface is expanded and connected with devices such as a display card. The controller may be one or more of a micro control unit (Micro Controller Unit, MCU), a complex programmable logic device (Complex Programming Logic Device, CPLD), a field programmable gate array (Field Programmable Gate Array, FPGA).

A baseboard management controller (Baseboard Manager Controller, BMC) is an essential component of a server for monitoring the operating conditions of the server, such as temperature, fan speed, power supply conditions, operating system status, etc. The BMC is independent of the operation of the server, is not influenced by the server, can perform firmware upgrade, check machine equipment, remotely control the machine to start and other operations on the server in a state that the server is not started, and can record key logs when the server crashes.

The motherboard generally includes various loads, such as a BMC, a CPU, a fan, a power management unit, a heating circuit, and a memory, and the embodiment of the present application is not specifically limited to a specific type of memory, for example, the memory includes, but is not limited to, the following types: dual-Inline Memory Modules (DIMMs), mechanical Hard Disk Drives (HDDs), and high-speed serial computer expansion bus standard PCI-Express (Peripheral Component Interconnect Express), etc. In addition, the motherboard may include one CPU or a plurality of CPUs.

The main board provided by the embodiment of the application is mainly used for partitioning each load of the main board, and under the condition of limited power supply capacity of a power supply, redundant power supply is carried out on the loads of important partitions based on the difference of the partitions, and the loads corresponding to the important partitions can work normally. For example, taking a main board of the server as an example, when the server is arranged in an outdoor scene, the outdoor environment is sometimes bad, so that operation and maintenance management is inconvenient, when the server fails, load power supply of the basic function is preferentially ensured, at least the load of the basic function reports failure and feeds back failure information, and the failure cause is conveniently found.

In order to enable those skilled in the art to better understand the technical solutions provided by the embodiments of the present application, the following detailed description is provided with reference to the accompanying drawings. The mainboard provided by the embodiment of the application comprises: the power supply system comprises a first power supply unit, a second power supply unit and a power supply management unit;

the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board; the power supply control unit is used for controlling the first power supply unit and the second power supply unit; the first power supply unit is used for supplying power to the basic functional area; the second power supply unit is used for supplying power to the main functional area and/or the basic functional area.

The primary function area may be powered by redundancy backup by the first power supply unit and the second power supply unit, which will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, a schematic diagram of a motherboard according to an embodiment of the present application is shown.

The mainboard provided by the embodiment of the application comprises: a power management unit 100, a first power supply unit 10, and a second power supply unit 20;

a power management unit 100, configured to control the first power supply unit 10 to supply power to the basic function area 30 of the motherboard in a standby power supply mode; the second power supply unit 20 is controlled to supply power to the main function area 40 and to supply power to the basic function area 30 of the main board. The backup power supply mode refers to that the first power supply unit 10 and the second power supply unit 20 perform backup power supply for the basic function area 30 in order to ensure power supply for an important load, that is, the load of the basic function area can normally operate. The basic function area 30 is higher in power supply priority than the main function area 40. The loads of the basic functional areas 30 are all loads needing to ensure the priority work, namely the basis of the work of the main board, and the loads of the basic functional areas 30 are all important loads, so that the main board has basic functions, such as a communication interface for external communication, a BMC for processing important data, a power management unit for power supply management and the like, in order to ensure the normal operation of the main board. Therefore, it is necessary to ensure the normal power supply of the basic functional area 30, and in order to ensure that the load corresponding to the basic functional area 30 can work normally, the power supply units of the basic functional area 30 are designed to be redundant, that is, the first power supply unit 10 and the second power supply unit 20 can both supply power to the basic functional area 30. When one of the power supply units is not supplied with power or fails, the other power supply unit can continue to supply power to the basic function area 30. For example, the second power supply unit 20 may supply power to the basic function area 30 when the first power supply unit 10 fails.

The number of the basic functional areas and the number of the main functional areas of the main board provided by the embodiment of the application are not particularly limited, and can be set according to actual needs, and the number of the basic functional areas can be one or a plurality of the basic functional areas. Similarly, the number of the main functional areas may be one or more.

The embodiment of the application is not particularly limited to the load corresponding to the basic functional area and the load corresponding to the main functional area. For example, the loading of the basic functional area includes one or more of the following: the power management unit 100, the motherboard management unit, the communication interface voltage stabilizing circuit, the step-down circuit and the switching circuit are only exemplified by the power management unit 100 in the figure. The load of the main functional area includes one or more of the following: display card, heating circuit, voltage stabilizing circuit, step-down circuit.

The embodiment of the present application is not particularly limited to the specific implementation forms of the first power supply unit 10 and the second power supply unit 20, for example, an ACDC circuit that directly converts ac power into dc power, a DCDC circuit that converts dc power into dc power, and a power conversion circuit that includes both an ACDC circuit and a DCDC circuit. The output voltages of the first power supply unit 10 and the second power supply unit 20 are not particularly limited, and for example, a dc 48V voltage, a dc 12V voltage, or a lower dc voltage, for example, 5V or 3.3V may be output. When the voltage output by the first power supply unit 10 cannot directly supply power to the load, the basic function area 30 may further include a voltage stabilizing and reducing circuit, etc., for example, the first power supply unit 10 outputs a voltage of 48V, and the basic function area 30 includes a voltage reducing circuit to reduce the voltage of 48V to 5V or 3.3V to supply power to the load, for example, to supply power to the power management unit 100. Similarly, when the voltage output by the second power supply unit 20 cannot directly supply power to the load corresponding to the main functional area 40, the main functional area 40 may further include a voltage stabilizing and reducing circuit, where the output voltage of the second power supply unit 20 is reduced and stabilized and then output to the load corresponding to the main functional area 40.

Therefore, the main board provided by the embodiment of the application comprises the first power supply unit and the second power supply unit, wherein the first power supply unit only supplies power for the load of the basic functional area, and the second power supply unit can supply power for the load of the basic functional area and the load of the main functional area. Therefore, the load of the basic functional area with high power supply priority can be ensured to realize redundant backup power supply, and when one power supply unit has insufficient electric quantity or fails, the other power supply unit can continue to supply power, so that the load corresponding to the basic functional area can work normally. The main board provided by the embodiment of the application can supply power according to different requirements of different partition loads, and the basic requirements of the loads are met. Alternatively, the first power supply unit and the second power supply unit may be two identical power supply units.

Optionally, in some application scenarios, for a compact server with limited space, under the condition that the power supply space is limited, it is inconvenient to set a plurality of identical power supply units. For example, the power of the first power supply unit is smaller than the power of the second power supply unit. The first power supply unit is a power supply unit with smaller power, the size is relatively smaller, the second power supply unit is a power supply unit with larger power, and the size is relatively larger, so that two different power supply units can be arranged in a limited space, and redundant backup power supply of an important load can be ensured.

The power management unit 100 provided by the embodiment of the present application is further configured to control the first power supply unit 10 to supply power to the basic functional area 30 in a non-backup power supply mode; the second power supply unit 20 is controlled to supply power to the main function area 40. The non-backup power supply mode means that backup power supply to the basic function area 30 is not required.

In the non-backup power supply mode, when the first power supply unit 10 fails, the power management unit 100 controls the second power supply unit 20 to supply power to the basic function area 30, i.e., forces the second power supply unit 20 to supply power to the basic function area.

The embodiment of the application is not particularly limited whether the first power supply unit and the second power supply unit are connected with the same external power supply, can be respectively connected with different external power supplies, and can also be connected with the same external power supply, and the embodiment is described in detail below with reference to the accompanying drawings.

Referring to fig. 2, a schematic diagram of another motherboard according to an embodiment of the present application is shown.

In order to supply the motherboard with power more reliably, the two power supply units are each connected to an external power supply. That is, the input terminal of the first power supply unit 10 shown in fig. 2 is connected to the first external power source a, and the input terminal of the second power supply unit 20 is connected to the second external power source B. The first external power supply A and the second external power supply B are two independent power supplies.

In some application scenarios, the main board is determined to operate in the non-backup power supply mode according to whether the external power supply is good or not and the required power of the load, for example, when the first external power supply a and the second external power supply B are both good and the required power of the load of the main board is large, in order to ensure the normal operation of the maximum load, the main board may operate in the non-backup power supply mode, for example, the load of the basic function area needs 10W of power, the load of the main function area needs 110W of power, the second power supply unit 20 only outputs 110W of power, if the second power supply unit 20 supplies 10W of power to the load of the basic function area, the remaining 100W will not support the normal operation of the load of the main function area, and at this time, the main board may operate in the non-backup power supply mode, and the 110W of the second power supply unit 20 provides all the load of the main function area, without reserving a part of power for backup power for the basic function area.

In some application scenarios, for example, when a computing device corresponding to a motherboard operates in a remote area, such as a mountain area or a desert area, on-site operation and maintenance management are difficult, and the computing device is generally controlled remotely, so that in order to ensure normal operation of the motherboard, the motherboard generally operates in a backup power supply mode.

In addition, referring to fig. 3, a protection circuit 50 may be further included between the external power source and the power supply unit, and the protection circuit 50 may protect both the first power supply unit 10 and the second power supply unit 20, for example, from an overcurrent impact or the like. In fig. 3, only one protection circuit 50 is taken as an example, and it should be understood that the first power supply unit 10 and the second power supply unit 20 may correspond to one protection circuit.

Referring to fig. 4, a schematic diagram of another motherboard according to an embodiment of the present application is shown.

The main board shown in fig. 4, the first power supply unit 10 and the second power supply 20 are connected to the same external power supply C.

In fig. 4, compared with fig. 3, when the external power C fails, the first power supply unit 10 and the second power supply unit 20 lose the power supply. However, in the main board shown in fig. 3, when the first external power source a fails and the second external power source B is normal, the second power supply unit 20 may normally supply power, and the basic function area 30 and the main function area 40 may normally supply power.

As shown in fig. 5, the main board shown in fig. 4 may further include a protection circuit 50, and since the first power supply unit 10 and the second power supply unit 20 correspond to the same external power supply C, the same protection circuit 50 may be shared, and the protection circuit 50 may protect the first power supply unit 10 and the second power supply unit 20.

The following description will take the example that the first power supply unit and the second power supply unit respectively correspond to different external power sources in combination with the accompanying drawings.

Referring to fig. 6, a schematic diagram of another motherboard according to an embodiment of the present application is shown.

The motherboard provided by the embodiment of the application further comprises: a first starting unit 60 and a second starting unit 70;

the power management unit 100 is further configured to send a first start signal to the first start unit 60, and instruct the first start unit 60 to start the first power supply unit 10 to supply power; and is further configured to send a second start signal to the second start unit 70, instructing the second start unit 70 to start the second power supply unit 20 to supply power.

In some embodiments, the first power supply unit 10 may also output a power good signal (power good) to the second starting unit 70, and the second starting unit 70 may further transmit the power good signal of the first power supply unit 10 to the power management unit 100. Similarly, the second power supply unit 20 may also output a power health signal to the first starting unit 60, and the first starting unit 60 may further send the power health signal of the second power supply unit 20 to the power management unit 100. For example, when the power health signal is 1, the default power supply unit can normally supply power, and when the power health signal is 0, the power supply unit is in fault, the output voltage is abnormal, and normal power supply cannot be performed.

For example, when the power management unit 100 controls the first power supply unit 10 to supply power to the basic function area 30, but the first power supply unit 10 fails, it is necessary to forcibly switch to the output voltage of the second power supply unit 20 to supply power to the basic function area 30, the first power supply unit 10 outputs the power health signal 0 to the second start-up unit 70, and when the second start-up unit 70 receives the health signal 0 sent by the first power supply unit 10, it forcibly controls the second power supply unit 20 to supply power to the basic function area 30.

In a specific implementation manner, a switch can be arranged on the power supply path, and whether the power supply path is conducted or not is controlled by controlling the state of the switch. For example, a switch is provided between the first power supply unit 10 and the basic function area 30. The first starting unit 60 controls the first power supply unit 10 to supply power to the basic function area 30, and may control the corresponding switch to be turned on. Similarly, a switch is provided between the second power supply unit 20 and the main function area 40. The second starting unit 70 controls the second power supply unit 20 to supply power to the main function area 40, and may control the corresponding switch to be turned on.

The implementation manner of the first starting unit 60 and the second starting unit 70 is not particularly limited in the embodiment of the present application, for example, the first starting unit 60 and the second starting unit 70 may be one of an MCU, a CPLD, or an FPGA.

According to the mainboard provided by the embodiment of the application, when the power supply unit at the opposite end fails, the starting unit is arranged to be forcibly switched to the local end for power supply, the starting unit is used as hardware to respond more quickly, and particularly when the power management unit does not judge the failure in time, reliable power supply can be ensured, so that the load can continue to work.

The power supply mode when the external power supply fails will be described below by taking an example that the first power supply unit and the second power supply unit are respectively connected with two independent external power supplies.

Referring to fig. 7, the power supply schematic diagram of the first external power supply according to the embodiment of the present application is shown in the drawing.

The mainboard provided by the embodiment of the application can be used for determining whether to work in the backup power supply mode or the non-backup power supply mode according to the specific working scene of the computing equipment, for example, a man-machine interaction interface of the computing equipment can receive a selection instruction input by a user, and the user triggers to enter the backup power supply mode or the non-backup power supply mode.

In the motherboard provided by the embodiment of the application, the first power supply unit 10 is connected with the first external power supply A, and the second power supply unit 20 is connected with the second external power supply B;

scene one: the main board operates in a backup power supply mode, which means that the first power supply 10 supplies power to the basic function area 30 and the second power supply unit 20 supplies power to the basic function area 30 and the main function area 40.

When the first external power a fails, the power health signal of the first power supply unit 10 transmits the second start-up unit 70, and the second start-up unit 70 may further transmit the power health signal of the first power supply unit 10 to the power management unit 100. The power management unit 100 determines that the first external power source a fails, and the power management unit 100 is configured to control the second power supply unit 20 to supply power to the basic function area 30, so as to ensure reliable power supply to the basic function area 30.

It should be understood that if the output power of the second power supply unit 20 is sufficient, the second power supply unit 20 supplies power to both the basic function area 30 and the main function area 40. When the output power of the second power supply unit 20 is insufficient, only the basic function region 30 may be supplied with power.

When the main board provided by the embodiment of the application works in the backup power supply mode, the backup power supply of the basic functional area can be realized, so that the normal work of the load of the basic functional area is ensured, and the main board is ensured to have the functions of basic code processing, power management and communication.

Scene II: the main board operates in a non-backup power supply mode, which means that the second power supply unit 20 does not supply power to the basic function area 30, but only to the main function area 40.

When the first external power source a fails, the first power supply unit 10 does not output power and cannot supply power to the basic function area 30, and at this time, the basic function area 30 has no power and cannot operate.

Although the scenario two main boards operate in the non-backup power supply mode, the non-backup power supply mode is generally triggered to enter the non-backup power supply mode when the external power supply is good, when the first external power supply a supplying power to the basic function area 30 fails, the power health signal of the first power supply unit 10 sends the second start-up unit 70, and the second start-up unit 70 may further send the power health signal of the first power supply unit 10 to the power management unit 100. The power management unit 100 determines that the first external power a is failed, and in order for the load of the basic function area 30 to be able to operate normally, the power management unit 100 may forcibly control the second power supply unit 20 to supply power to the basic function area 30 such that, in the non-backup power supply mode, if the power fails, the power management unit 100 may forcibly switch to the backup power supply mode.

Referring to fig. 8, a schematic power supply diagram of the second external power supply according to the embodiment of the present application is shown.

The power management unit 100 is further configured to, when the second external power supply B fails, operate in the backup power supply mode or the non-backup power supply mode, and the second power supply unit 20 does not output power, so that power cannot be supplied to the load. Only the first power supply unit 10 can be controlled to supply power to the basic function area 30; at this time, the main function region 40 has no power input and cannot operate normally.

The main board includes a plurality of basic functional areas and a plurality of main functional areas.

Referring to fig. 9, a schematic diagram of another motherboard according to an embodiment of the present application is shown.

The motherboard provided by the embodiment of the application comprises at least two basic functional areas and at least two main functional areas, wherein the two basic functional areas comprise a basic functional area I31 and a basic functional area 32, and the two main functional areas comprise a main functional area I41 and a main functional area II 42.

For example, the load of the basic function area one 31 includes the power management unit 100 and the motherboard management unit. The power management unit 100 and the motherboard management unit are both the basis of the motherboard, and in any case need to operate first.

The power management unit 100 is mainly used for managing power supply of each functional area, and redundant backup power supply is set according to the requirement of the functional area. The power management unit 100 may be a power management chip, or may be a discrete circuit combined with the power chip to implement power switching and on/off control.

The motherboard management unit controls and coordinates the operations of the motherboard, which may be implemented, for example, by the BMC. In addition, the power management unit 100 and the motherboard management unit may be separate chips or circuits, or may be integrated together.

The load of the basic functional area two 32 may comprise, for example, a switching circuit. The switching circuit is used to provide a channel for the motherboard and external interfaces, such as a communication interface, is also an important load, and thus requires the provision of redundant backup power supplies.

The load of the primary function area one 41 includes, for example, a heating circuit for heating the main board at a low temperature so that it can start operation.

The load of the second main functional area 42 may include a display card, for example, and may not be required to supply power when the power fails or the power is insufficient. For example, when the power is insufficient, the graphics card may not operate, i.e., no picture or video is displayed.

The first start-up unit 60 may interact with the power management unit 100, receive a first start-up signal of the power management unit 100, and control whether the output of the first power supply unit 10 is enabled. Similarly, the second starting unit 70 may also interact with the power management unit 100, receive a second starting signal of the power management unit 100, and control whether the output of the second power supply unit 20 is enabled.

The load of the basic functional area is mainly the load of the main board for maintaining the most basic work, for example, the main board needs to have a power management function, a code processing function and an external communication function in any scene, for example, the BMC, a power management unit, a communication interface and the like in the main board of the server need to work all the time. The power requirements of the loads of the basic functional area are typically smaller than the power requirements of the loads of the main functional area. The load of the main function area is a load that can be suspended when the power supply is not sufficiently charged, for example, the heating circuit and the graphics card can be stopped when the power supply is not sufficiently charged.

The implementation manner of redundant backup power supply provided by the embodiment of the application is described below with reference to a specific scene. When the first external power supply and the second external power supply are insufficient in power supply, the power management unit is used for determining whether the second power supply unit supplies power for the basic functional area according to the required power of the main functional area and the required power of the basic functional area.

The first scenario-the external power supply is powered adequately.

The primary function area one 31 and the primary function area two 32 are both subjected to power redundancy backup, that is, the primary function area one 31 and the primary function area two 32 are both powered by the first power supply unit 10 and the second power supply unit 20. Any fault on the power input path of either the first external power supply a or the second external power supply B does not affect the basic functions of the motherboard and external communication.

For example, the first external power supply A fails, the second external power supply B still works normally, all functions of the main board are not affected, the server can be reminded to maintain, the first external power supply A is informed of failure, and maintenance is timely carried out.

For example, the second external power supply B fails, and since the second power supply unit 20 is powered by the second external power supply B, the second power supply unit 20 is powered off, the first power supply unit 10 may be powered by the first external power supply a normally, and the power obtained by the main board is limited, and the first power supply unit 10 supplies power to the first basic function area 31 and the second basic function area 32, that is, only the power management unit 100, the main board management unit, and the switching circuit, so as to ensure the normal operation of these loads. Meanwhile, the power management unit or the main board management unit can inform the network management system of the fault condition of the second external power supply B and maintain the network management system in time.

The second scenario-insufficient power supplied by the external power supply.

The power management unit 100 may adjust power input of each functional area according to the power level of the power source, for example, such as in a low-temperature scenario, where power consumption of the heating circuit is large, and may adjust power supply to supply power to the heating circuit.

The first external power supply a and the second external power supply B are normal, but the output power is insufficient, and the first basic functional area 31 and the second basic functional area 32 can be temporarily powered by the first external power supply a, that is, the first power supply unit 10 supplies power, and power is not taken from the second external power supply B; this allows the second power supply unit 20 to reserve power for the heating circuit of the primary function area one 41. However, after the heating circuit completes heating, the operation of the primary function region one 41 is started. When the primary function area one 41 works stably, the heating circuit can be turned off, and the secondary power supply unit 20 is restored to supply power to the primary function area one 31 and the primary function area two 32, namely, the primary function area one 31 and the primary function area two 32 can take power from the secondary external power supply B, and the power supply of the primary function area realizes the redundant backup function.

In a third scenario, when the second external power supply B fails, only the first power supply unit 10 supplies power to the loads of the basic functional area.

In a fourth scenario, when the first external power supply a fails, the power management unit 100 calculates from the required power of the basic functional area, and obtains the remaining power that can be used for the main functional area, for example, for a heating circuit or the like; if the residual power is insufficient to support the heating circuit to work in a low-temperature scene, the load of the heating circuit and other main functional areas is not started; when the ambient temperature rises, the power supply of the main functional area is restarted if the load corresponding to the main functional area can work under the condition that heating is not needed.

According to the main board provided by the embodiment of the application, the power management unit 100 flexibly sets the partition of each functional area, the basic functional area is powered preferentially, and the first power supply unit and the second power supply unit supply power for the basic functional area. In the embodiment of the present application, only two power supply units are taken as an example, it should be understood that the main board may also include more power supply units, for example, three power supply units, where one power supply unit supplies power to the basic functional area, and the other two power supply units supply power to the corresponding main functional area, and one power supply unit that supplies power to the main functional area may also supply power to the basic functional area. The main board provided by the embodiment of the application can realize asymmetric configuration of the two power supply units for redundant backup power supply, namely, the two redundant power supply units can be provided with different power and correspond to different loads, so that compact power supply in limited space is realized.

Based on the motherboard provided in the foregoing embodiment, the embodiment of the present application further provides a computing device, which is described in detail below with reference to the accompanying drawings. The embodiment of the application does not specifically limit the type of the computing device, for example, the computing device can be a server, and the embodiment of the application also does not specifically limit the specific type of the server. The following detailed description refers to the accompanying drawings.

Referring to fig. 10, a schematic diagram of a computing device according to an embodiment of the present application is provided.

The computing device provided by the embodiment of the application includes the main board 1000 described in the above embodiment, and further includes the power panel 2000.

It should be understood that the main board 1000 may be provided separately or together with the power board 2000. The power panel 2000 may include one power source or two independent power sources. That is, the first power supply unit 10 and the second power supply unit 20 of the main board 1000 may be connected to the same power supply of the power board 2000, or may be connected to two independent power supplies of the power board 2000, and in the embodiment of the present application, two power supplies including the first external power supply a and the second external power supply B are described as examples of the power board 2000.

In the computing device provided by the embodiment of the present application, when the power panel 2000 includes two power supplies, the first external power supply a and the second external power supply B may have the same structure and power.

The computing device provided by the embodiment of the application comprises two power supply units on the main board, wherein the power supply objects corresponding to the two power supply units are different, the first power supply unit supplies power for only the important basic functional area, and the second power supply unit supplies power for both the basic functional area and the main functional area, so that redundant backup power supply of the basic functional area can be realized, further, the power supply redundancy of important loads can be realized without carrying out power supply backup for all loads, the design difficulty of the first power supply unit can be reduced, the first power supply unit can be realized by adopting a circuit or a chip with smaller power, the device is suitable for a compact power supply scene, and the power supply of the important loads can be ensured.

Based on the motherboard and the computing device provided in the foregoing embodiments, the embodiments of the present application further provide a control method for the motherboard, which is described in detail below with reference to the accompanying drawings.

According to the control method of the main board, provided by the embodiment of the application, the first power supply unit is controlled to supply power for the basic functional area of the main board; controlling the second power supply unit to supply power for the main functional area and/or the basic functional area of the main board; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area of the main board and the basic functional area.

The application focuses on the realization mode that the first power supply unit and the second power supply unit supply power for the basic functional area, namely the basic functional area realizes redundant backup power supply.

Referring to fig. 11, the flowchart of a control method of a motherboard according to an embodiment of the present application is shown.

The control method of the main board provided by the embodiment of the application is applied to a main board, and the main board comprises a power management unit, a first power supply unit and a second power supply unit; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board; the method comprises the following steps:

s1101: in the backup power supply mode, the power supply management unit controls the first power supply unit to supply power to the basic function area of the main board, and controls the second power supply unit to supply power to the main function area and the basic function area of the main board;

s1102: in the non-backup power supply mode, the power management unit controls the first power supply unit to supply power to the basic function area of the main board, and controls the second power supply unit to supply power to the main function area of the main board.

According to the control method of the main board, provided by the embodiment of the application, the load of the main board is partitioned, and the main board comprises a basic function area and a main function area. In the backup power supply mode, the first power supply unit and the second power supply unit supply power for the basic function area, namely, the power supply of the basic function area realizes reliable backup, the load for maintaining the basic function of the main board is an important load, and the normal operation of the load of the basic function area needs to be ensured, so that the load of the basic function area is reliably backed up and supplied with power. For the main functional area of the main board, only the second power supply unit supplies power to the main functional area, and backup power supply to the main functional area is not needed. In the non-backup power supply mode, the second power supply unit only supplies power to the load of the main functional area.

For example, the power of the first power supply unit may be smaller than the power of the second power supply unit, and the volume may also be smaller than the volume of the second power supply unit, and thus may be suitable for compact power supply scenarios with limited space, such as an outdoor server.

In addition, the load corresponding to the basic functional area is an important load that must be operated, such as a power management unit, a motherboard management unit, and the like. The load corresponding to the main functional area can suspend power supply under the scenes of power failure and insufficient electric quantity. For example, the load corresponding to the main functional area may include a heating circuit or a display card.

According to the control method for the main board, provided by the embodiment of the application, the main board comprises two power supply units, the power supply objects corresponding to the two power supply units are different, wherein the first power supply unit only supplies power for the important basic functional area, and the second power supply unit supplies power for the basic functional area and the main functional area, so that redundant backup power supply of the basic functional area can be realized, further, the power supply redundancy of important loads can be realized, and the power supply backup of all loads is not needed, so that the design difficulty of the first power supply unit can be reduced, the first power supply unit can be realized by adopting a circuit or a chip with smaller power and smaller size, and the control method is suitable for a compact power supply scene and can ensure the power supply of the important loads.

The following describes another control method of a motherboard according to an embodiment of the present application with reference to the accompanying drawings.

Referring to fig. 12, a flowchart of another control method of a motherboard is provided in an embodiment of the present application.

S1201: the power management unit judges whether the working mode of the main board is a backup power supply mode, if so, S1202 is executed; otherwise, executing S1203; the backup power supply mode means that the first power supply unit and the second power supply unit supply power for the basic functional area. The non-backup power supply mode means that the first power supply unit supplies power to the basic function area and the second power supply unit supplies power to the main function area only.

S1202: the power management unit enables the second power supply unit to supply power for the basic functional area through the second starting unit. I.e. the basic functional area is supplied with redundant backup power.

S1203: whether the local power supply unit has enabled power supply, if not, executing S1204; if so, S1206 is performed; the local end and the opposite end are relative concepts, and for the first power supply unit, the local end refers to the first power supply unit, and the opposite end refers to the second power supply unit. Similarly, for the second power supply unit, the home terminal refers to the second power supply unit, and the opposite terminal refers to the first power supply unit. However, when the first power supply unit outputs an abnormality, the second power supply unit may supply power to the basic function area. However, when the second power supply unit is abnormal, the first power supply unit cannot supply power to the main functional area.

S1204: if the output of the opposite terminal power supply unit is normal, executing S1205; if not, execute S1202;

s1205: whether the power management unit is operating normally, if so, S1206 is performed; if not, the second power supply unit is enabled to supply power to the basic function area.

S1206: the power management unit is turned on for indication.

According to the control method for the main board, provided by the embodiment of the application, the power management unit flexibly sets the subareas of all the functional areas, the basic functional areas are powered preferentially, and the first power supply unit and the second power supply unit supply power for the basic functional areas. In the embodiment of the present application, only two power supply units are taken as an example, it should be understood that the main board may also include more power supply units, for example, three power supply units, where one power supply unit supplies power to the basic functional area, and the other two power supply units supply power to the corresponding main functional area, and one power supply unit that supplies power to the main functional area may also supply power to the basic functional area. The main board provided by the embodiment of the application can realize asymmetric configuration of the two power supply units for redundant backup power supply, namely, the two redundant power supply units can be provided with different power and correspond to different loads, so that compact power supply in limited space is realized.

The above description is only of the preferred embodiment of the present application, and is not intended to limit the present application in any way. While the application has been described with reference to preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present application or modifications to equivalent embodiments using the methods and technical contents disclosed above, without departing from the scope of the technical solution of the present application. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present application still fall within the scope of the technical solution of the present application.

Claims (10)

1. A motherboard, comprising: the power supply management unit, the first power supply unit and the second power supply unit; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board;

the power management unit is used for controlling the first power supply unit and the second power supply unit;

the first power supply unit is used for supplying power to the basic function area;

The second power supply unit is used for supplying power to the main functional area and/or the basic functional area.

2. The motherboard of claim 1, wherein the power of the first power supply unit is less than the power of the second power supply unit.

3. The motherboard of claim 1, wherein the power management unit is configured to control the first power supply unit to supply power to a basic functional area of the motherboard in a backup power supply mode; and controlling the second power supply unit to supply power to the main functional area of the main board and supply power to the basic functional area.

4. The motherboard of claim 1, wherein the power management unit is configured to control the first power supply unit to supply power to the basic functional area in a non-backup power supply mode; and controlling the second power supply unit to supply power to the main functional area.

5. The motherboard of claim 4, wherein the power management unit is further configured to control the second power supply unit to supply power to the basic functional area if the first power supply unit fails to supply power in the non-backup power mode.

6. The motherboard according to any of claims 1-5, wherein the load of the basic functional area comprises one or more of the following: the system comprises a power management unit, a main board management unit, a communication interface, a switching circuit, a voltage stabilizing circuit and a voltage reducing circuit;

The load of the main functional area includes one or more of the following: display card, heating circuit, voltage stabilizing circuit, step-down circuit.

7. The motherboard according to any of claims 1-5, wherein the first power supply unit is configured to connect to a first external power source, and the second power supply unit is configured to connect to a second external power source;

when the first external power supply and the second external power supply are sufficient in power supply, the main board works in the backup power supply mode; when the first external power supply fails or the second external power supply is not supplied enough, the main board works in a non-backup power supply mode.

8. The motherboard of claim 1, wherein the power management unit is further configured to determine whether the second power supply unit supplies power to the basic functional area according to the required power of the main functional area and the required power of the basic functional area.

9. A computing device comprising the motherboard of any of claims 1-8.

10. A power supply control method, which is characterized by being applied to a main board, wherein the main board comprises a power supply management unit, a first power supply unit and a second power supply unit; the first power supply unit is connected with the basic functional area of the main board, and the second power supply unit is connected with the main functional area and the basic functional area of the main board; the method comprises the following steps:

In the backup power supply mode, the power supply management unit controls the first power supply unit to supply power to the basic function area of the main board, and controls the second power supply unit to supply power to the main function area and the basic function area of the main board.

In the non-backup power supply mode, the power management unit controls the first power supply unit to supply power to the basic function area of the main board, and controls the second power supply unit to supply power to the main function area of the main board.