CN114546091A

CN114546091A - Fusion power supply system for server

Info

Publication number: CN114546091A
Application number: CN202210181263.1A
Authority: CN
Inventors: 花得阳
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2022-02-26
Filing date: 2022-02-26
Publication date: 2022-05-27
Anticipated expiration: 2042-02-26
Also published as: CN114546091B

Abstract

The invention relates to the technical field of servers. The invention discloses a fusion power supply system for a server, which comprises: the main board comprises a plurality of main board connectors, a combination switch circuit connected with the main board connectors, a priority control unit connected with the combination switch circuit and a main board voltage regulator; the expansion board is connected with the corresponding main board connector and comprises a power supply unit; a plurality of power supply devices connected to corresponding board connectors; the priority control unit is configured to pre-configure the priority of the power supply unit and the power supply device connected with the mainboard, and control the combiner switch circuit based on the priority of the power supply unit and the power supply device to select the power supply unit or the corresponding power supply device to supply power to the mainboard voltage regulator. The scheme of the invention can adapt to different application scenes, and has only one power supply source in different scenes.

Description

Fusion power supply system for server

Technical Field

The invention relates to the technical field of servers, in particular to a fusion power supply system for a server.

Background

With the large-scale application of the internet of things, a huge local data task is generated on one side close to an object or a data source, the difficulty of cloud processing is increased, and the edge computing technology is widely applied. This means that much of the control will be done through the local device without passing to the cloud and the process will be done at the edge computing layer of the local server. A large number of edge micro-servers need to be deployed. This will undoubtedly promote the processing efficiency of data greatly, alleviate the load in the cloud. The edge micro server is closer to the user, and can provide faster response for the user, so that the requirement is solved at the edge side. However, the edge side has complex and various practical application scenes, and power supply equipment is different in different application scenes. The existing edge computing power supply equipment is single and is difficult to be widely applied to various global complex application scenes.

Fig. 1 is a schematic diagram of a conventional edge micro server power supply system. The power supply device 1a is in various power supply input forms, and comprises an adapter, a battery pack, an AC-DC (Alternating Current-Direct Current), a DC-DC (Direct Current-Direct Current), and other power supply devices. And 1b is a connector which is connected with the power supply equipment and the edge micro server. And 1c is an edge device such as an edge micro server. The prior art can only meet the application of a single scene, cannot meet the application scenes of complexity and changeability, and is not beneficial to the popularization of edge equipment. Therefore, the invention provides a marginal micro-server fusion power supply system which can meet industrial scenes and PoE power supply scenes and can also meet various indoor and outdoor complex scenes and accelerate the wide deployment of marginal computing equipment.

Disclosure of Invention

In view of this, the invention provides a converged power supply system for servers, which solves the problem that the existing edge server power supply system can only meet a single application scenario, and realizes that power supply sources with different priorities can be uniquely accessed to the edge server and supply power to the edge server.

Based on the above object, an aspect of the embodiments of the present invention provides a converged power supply system for a server, where the converged power supply system specifically includes:

the main board comprises a plurality of main board connectors, a combination switch circuit connected with the main board connectors, a priority control unit connected with the combination switch circuit and a main board voltage regulator;

an expansion board connected to a corresponding motherboard connector, the expansion board including a power supply unit;

a plurality of power supply devices connected to corresponding board connectors;

the priority control unit is configured to pre-configure the priority of a power supply unit and power supply equipment connected with the mainboard, and control the combiner switch circuit based on the priority of the power supply unit and the power supply equipment to select the power supply unit or the corresponding power supply equipment to supply power to the mainboard voltage regulator.

In some embodiments, the combining switch circuit comprises:

the electronic switches are connected with the power supply equipment through a mainboard connector, and the electronic switches and the mainboard connector correspond to the power supply equipment one to one;

and the fusion combining electronic switch is connected with the combining electronic switch and is connected with the mainboard voltage regulator.

In some embodiments, the expansion board includes: and the extension board connectors are respectively connected with the corresponding main board connectors and the corresponding power supply unit, wherein the extension board connectors are extension board connectors with in-place signals or extension board connectors without in-place signals.

In some embodiments, the extension board connectors without in-place signals are connected to the corresponding motherboard connectors and the power supply unit, respectively;

the combination switch circuit also comprises a combination electronic switch connected with the extension board connector without the in-place signal.

In some embodiments, after the server is powered on, the priority control unit is configured to:

judging whether the power supply unit is connected to the mainboard or not;

if the power supply unit is connected to the mainboard, generating a forced turn-off signal to forcibly turn off the power supply of all the power supply equipment to the mainboard;

judging whether the voltage output by the power supply unit meets a preset requirement or not;

and if the voltage output by the power supply unit meets the preset requirement, the fused combined electronic switch is turned on to supply power for the mainboard voltage adjusting unit through the power supply unit.

In some embodiments, the power supply management unit further includes a plurality of power supply management units, and the motherboard connector corresponding to the power supply device is connected to the corresponding combining electronic switch through the corresponding power supply management unit.

In some embodiments, the priority control unit is further configured to:

if the power supply unit does not access the mainboard, sequentially judging whether power supply equipment is accessed to the mainboard or not according to the sequence of the priority from high to low;

if the power supply equipment is connected to the mainboard, generating a forced turn-off signal to forcibly turn off the power supply of the power supply equipment with the priority lower than that of the current power supply equipment to the mainboard;

opening the power supply management unit and the corresponding combiner electronic switch, and sending a normal signal of the current power supply equipment to the server;

in the combination switch circuit, judging whether the voltage of the common end connected with the corresponding combination electronic switch and the fused combination electronic switch meets the preset requirement or not;

and if the voltage of the public end meets the requirement, the fused combined electronic switch is opened to supply power to the mainboard voltage regulator through the current power supply equipment.

In some embodiments, turning on the power management unit and the corresponding combined electronic switch includes:

after delaying a first preset time, judging whether the voltage output by the current power supply equipment meets a preset requirement or not;

and if the voltage output by the current power supply equipment meets the preset requirement, turning on the power supply management unit and the corresponding combiner electronic switch.

In some embodiments, the priority control unit is further configured to:

judging whether the voltage between the fused combiner electronic switch and the mainboard voltage regulator meets a preset requirement or not;

if the voltage between the fused combiner electronic switch and the mainboard voltage regulator meets a preset requirement, sending a normal power supply signal of the mainboard voltage regulator to the server;

and if the voltage between the fused combiner electronic switch and the main board voltage regulator does not meet the preset requirement, sending a main board voltage regulator power supply fault signal to the server.

In some embodiments, after the power supply device supplies power to the main board voltage regulator, the priority control unit is configured to:

acquiring the priority of the current power supply equipment;

judging whether to trigger arbitration based on the priority of the current power supply equipment;

if the priority of the current power supply equipment triggers arbitration, monitoring the output voltage of the power supply equipment with the priority higher than that of the current power supply equipment;

and in response to the fact that the output voltage is higher than the threshold value, closing a combined electronic switch corresponding to the current power supply equipment, and after delaying for a second preset time, sequentially opening the power supply management unit and the combined electronic switch corresponding to the power supply equipment with the priority higher than that of the current power supply equipment so as to supply power to the mainboard voltage regulator through the power supply equipment with the priority higher than that of the current power supply equipment.

The invention has at least the following beneficial technical effects: the priority of the power supply unit and the priority of the power supply equipment which are connected with the mainboard are configured through the priority control unit, and the combined switch circuit is controlled based on the priorities of the power supply unit and the power supply equipment so as to select the power supply unit or the corresponding power supply equipment to supply power to the mainboard voltage regulator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.

FIG. 1 is a schematic diagram of a conventional power supply system for an edge server;

FIG. 2 is a schematic diagram of an embodiment of a converged power supply system for servers provided by the present invention;

fig. 3 is a schematic structural diagram of an embodiment of a converged power supply system for an edge server according to the present invention;

fig. 4 is a flowchart of an embodiment of a priority control unit for performing power supply control on the converged power supply system shown in fig. 3 according to the present invention;

fig. 5 is a block flow diagram of an embodiment of the priority control unit arbitrating the converged power supply system shown in fig. 3 under a normal power supply condition of a third-priority industrial power supply according to the present invention;

fig. 6 is a flowchart of an embodiment of arbitrating the converged power supply system shown in fig. 3 under a condition that PoE is normally powered by the priority control unit provided in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.

In view of the above object, in a first aspect of the embodiments of the present invention, an embodiment of a converged power supply system for a server is provided. As shown in fig. 2, the power supply system specifically includes:

a motherboard 10, wherein the motherboard 10 includes a plurality of motherboard connectors 100, a combination switch circuit 110 connected to the motherboard connectors 100, a priority control unit 120 and a motherboard voltage adjuster 130 connected to the combination switch circuit 110;

an expansion board 20 connected to the corresponding board connector 100, the expansion board 20 including a power supply unit 200;

a plurality of power supply devices 30 connected to the corresponding board connectors 100;

the priority control unit 120 is configured to pre-configure the priorities of the power supply unit 200 and the power supply devices 30 connected to the motherboard, and control the combining switch circuit 110 to select the power supply unit 200 or the corresponding power supply device 30 to supply power to the motherboard voltage adjuster 130 based on the priorities of the power supply unit 200 and the power supply device 30.

The fusion power supply device of the embodiment is suitable for servers, in particular edge devices such as edge servers.

The expansion board is used for expanding the functions of the main board, comprises an expansion board voltage regulator, a memory, a network card, a PCIE interface and the like, and is mainly used for a data center.

A Voltage Regulator (VR) is used to supply power to each hardware device on the motherboard or the expansion board, and an input Voltage of the VR includes, but is not limited to, 12V; including but not limited to, parallel series connection of isolated and non-isolated power supplies, linear power supplies. In the present embodiment, the main board voltage regulator and the expansion board voltage regulator are used to distinguish the voltage regulator disposed on the main board from the voltage regulator disposed on the expansion board.

The Power Supply Unit (PSU) includes, but is not limited to, an AC-DC Power Supply and a high voltage DC Power Supply. PSU inputs include, but are not limited to, 220Vac mains input, high voltage dc input. The PSU output voltage includes, but is not limited to, 12V dc voltage.

The Power supply device includes devices that can provide Power to the server, including various Power supply devices such as an adapter, a battery pack, industrial Power supply, and PoE (Power over Ethernet).

The combining switch circuit includes, but is not limited to, a combining circuit formed by diodes, a combining circuit formed by MOSFETs, a diode and MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) mixed series-parallel combining circuit, a combining circuit obtained by equivalently using other partial circuits, a MOSFET-like switching device, and a combining circuit formed by structural members. For example, the combining switch circuit is composed of a plurality of MOSFET switch devices, each MOSFET switch device corresponds to one power supply device, and the combining switch circuit is used for receiving a signal of the priority control unit to correspondingly control the power supply device to be switched on or off with the mainboard voltage adjustment period.

The priority control unit is used for configuring the priorities of various power supply devices and power supply units on the expansion board, so that a unique priority power supply control logic is realized, the power supply of a fusion power supply system of the edge micro server is ensured to be in accordance with a set priority sequence, and only a unique power supply source exists in different scenes. Once one of the power sources is accessed through the corresponding connector port, the other power sources are forced to be turned off. Preferably, the power supply unit on the expansion board is set to be the highest priority, and the priority of the power supply equipment can be customized according to the actual application scene. The power supply source (various power supply devices and power supply units on the expansion board) with different power supply interface forms and electrical specifications can be fused to adapt to the limited power supply forms configured under different working scenes.

According to the fusion power supply system provided by the embodiment of the invention, the priority of the power supply unit and the priority of the power supply equipment which are connected with the mainboard are configured through the priority control unit, and the combined switch circuit is controlled based on the priorities of the power supply unit and the power supply equipment so as to select the power supply unit or the corresponding power supply equipment to supply power to the mainboard voltage regulator.

In some embodiments, the combining switch circuit comprises:

Fig. 3 is a schematic structural diagram of an embodiment of the converged power supply system for an edge server according to the present invention.

The fusion power supply system specifically comprises:

the main board comprises a plurality of main board connectors, a combination switch circuit connected with the main board connectors, a priority control unit connected with the combination switch circuit and a main board voltage regulator VR 1;

the expansion board is connected with the main board and comprises a PSU, expansion board connectors J0 respectively connected with the PSU and an expansion board voltage adjusting unit VR 0;

a plurality of power supply units connected with the main board are respectively: adapter, PoE (power over ethernet), industrial power, battery pack;

PSU, adapter, PoE (power over ethernet), industrial power, battery pack are connected to the motherboard by corresponding motherboard connectors J1, J2, J3, J4, respectively.

The mainboard can be independently used as a product to meet the actual requirement; the main board and the expansion board are assembled into a whole to meet the actual requirement of a product, and after the main board and the expansion board are combined into a whole, J2, J3 and J4 are detached or shielded to prevent all electric accesses except PSU. The PSUs of the main board and the expansion board are connected through a connector J0 and a connector J1, so that opposite insertion is realized.

The priority control unit configures the PSU, the adapter, PoE (power over ethernet), industrial power, priority of the battery pack, e.g. PSU first priority, adapter second priority, PoE (power over ethernet) fourth priority, industrial power third priority.

The combiner switch circuit is controlled by the unique priority power supply control logic, so that power supply source equipment is guaranteed to supply power to the mainboard of the server according to the set priority sequence, and only one unique power supply source exists in different scenes.

The PSU includes but is not limited to an AC-DC power supply and a high-voltage direct current power supply. PSU inputs include, but are not limited to, 220Vac mains input, high voltage dc input.

The PSU output voltage includes, but is not limited to, 12V dc voltage, and the PSU output 12V voltage supplies power to the motherboard of the edge microserver through connectors J0 and J1, and also supplies power to the expansion board voltage adjustment unit VR 0.

The power supply module VR0 includes but is not limited to a parallel series connection of isolated and non-isolated power supplies and linear power supplies; the power supply module VR0 includes, but is not limited to, a 12V DC voltage input, and the input voltage of the power supply module VR0 of the present embodiment includes, but is not limited to, a 12V DC voltage input.

The edge micro-server mainboard power supply system comprises a combination switch circuit, a priority control circuit and VR1, wherein the combination switch circuit consists of connectors J1, J2, J3 and J4, hot plug circuits H0 and H1, a rectifying circuit, DC-DC power supply modules M0 and M1, and combination electronic switches S1-S4.

The combination switch circuit includes, but is not limited to, a combination circuit formed by diodes, a combination circuit formed by MOSFETs, a combination circuit formed by diodes and MOSFETs in a mixed series-parallel connection, a combination circuit obtained by equivalently using other circuits, a MOSFET-like switch device, and a combination circuit formed by structural members.

Each combining electronic switch in the combining switch circuit is connected with the corresponding mainboard connector to be connected to the corresponding power supply source (battery unit and power supply equipment) in series, each combining electronic switch is connected in parallel, the output end of each combining electronic switch is connected to the input end of the fused combining electronic switch, and the output end of the fused combining electronic switch is connected to the mainboard voltage regulator.

The priority control unit comprises but is not limited to a basic logic control circuit, a single chip microcomputer, a CPLD and an integrated chip with a logic control function. Various power supply sources (power supply equipment or power supply units on an expansion board) are fused by a switching circuit to supply power to the main board voltage regulator VR1, and the priority control circuit is used for designing and controlling the priority of each power supply, the power supply logic and the power supply arbitration according to actual requirements.

And the mainboard connector J1 is connected with the expansion board connector J0 and the S4 of the combination switch circuit, so that the PSU of the expansion board is accessed with the first priority. If the extension board connector J0 does not carry a bit signal, the combination switch circuit further includes a switch S0, the main board connector J1 is connected to the S4 of the combination switch circuit through the S0 of the combination switch circuit, and at this time, the priority control unit is required to detect the voltage between the PSU output to the connector J1 and the switch S0 to realize that the PSU supplies power with the first priority, for example, the PSU output voltage is higher than 3.3V, and the switches S1-S3 are controlled to be turned off to realize the power supply with the first priority of the PSU; if the connector J1 of the expansion board connector J0 carries an on-position signal, the on-position signal is transmitted to the motherboard connector J1, at this time, the voltage output by the PSU to the motherboard does not need to be detected, the switch S1-S3 are controlled to be switched off by the priority control unit to supply power to the PSU with the first priority, and at this time, the switch S0 is not included in the combination switch circuit. After the PSU realizes the first priority power supply, the combined power supply switch S4 is opened to supply power for the main board voltage regulator VR 1.

And the host board connector J2 conforms to the interface type of the adapter matched with the edge micro server.

The motherboard connector J2 enables the adapter to access and power the edge microserver.

The motherboard connector J3 conforms to the interface type of edge microserver PoE powering, including but not limited to RJ45 connectors and derivatives thereof. After the PoE power supply achieves that the edge micro server is identified and handshake is successful, the edge micro server is powered through the RJ45 port motherboard connector J3, and the voltage amplitude range is provided, including but not limited to 36-60V.

Motherboard connector J4, conforming to the interface type of edge microserver industrial power supply, battery power supply, or other power supply, including but not limited to waterproof connectors. And industrial power supply (or battery power supply and other direct current power supply) access to the edge micro server is realized.

The voltage output by the industrial power supply (or the battery pack power supply and other direct current power supplies) to the edge micro-server is direct current voltage, and the direct current voltage range is 9V-60V.

The priority control unit is matched with the combiner switch circuit to realize unique power supply with different priorities, and the priority is defined as: PSU is first priority, adapter is second priority, PoE (power over ethernet) is fourth priority, industrial power is third priority. First priority > second priority > third priority > fourth priority, and the expansion board connector J1 is an off-site signal connector. The specific process is as follows:

if the priority control unit monitors that the power supply source currently accessed to the edge server is the PSU with the first priority, a forced turn-off signal is generated to turn off the switches S1-S3, and turn on the switch S4 to supply power to the main board voltage regulation period VR1 by the PSU and prevent other power supply source pairs from being mistakenly plugged into the edge server.

If the priority control unit monitors that the power supply source currently accessed to the edge server is the adapter with the second priority, a forced turn-off signal is generated to turn off the switches S2 and S3, and turn on the switch S4, so that the adapter supplies power to the main board voltage regulation period VR1, and prevents other power supply source pairs from being mistakenly plugged into the edge server. Meanwhile, the priority control unit monitors whether a power supply device with a higher priority than the current priority is connected, and if the power supply device with the higher priority than the current priority is connected, a forced turn-off signal is generated to forcibly turn off the power supply device with the higher priority.

If the priority control unit monitors that the power supply source currently accessed to the edge server is industrial power supply of the third priority, a forced turn-off signal is generated to turn off the switch S2, and the switch S4 is turned on to realize power supply of the industrial power supply to the main board voltage adjustment period VR1 and prevent other power supply sources from being mistakenly plugged into the edge server. And meanwhile, the priority control unit monitors whether power supply equipment with higher priority than the current priority is accessed, if the power supply equipment with higher priority than the current priority is accessed, a forced turn-off signal is generated, the power supply of the industrial power supply to the main board voltage adjustment period VR1 is forcibly turned off, and a combination switch corresponding to the power supply equipment with higher priority than the current priority in the combination switch circuit is turned on so as to supply power to the main board voltage adjustment period VR1 through the power supply equipment with higher priority than the current priority.

If the priority control unit monitors that the power supply source currently accessed to the edge server is PoE with the lowest priority, a forced turn-off signal is generated to turn off the switches S1-S3, and turn on the switch S4 to realize the power supply of the PSU to the mainboard voltage adjustment period VR1 and prevent other power supply source pairs from being mistakenly plugged into the edge server. And meanwhile, the priority control unit monitors whether power supply equipment with higher priority than the current priority is accessed, if the power supply equipment with higher priority than the current priority is accessed, a forced turn-off signal is generated, the PoE is forcibly disconnected from supplying power to the VR1 in the mainboard voltage adjustment period, and a combination switch corresponding to the power supply equipment with higher priority than the current priority in the combination switch circuit is turned on so as to supply power to the VR1 in the mainboard voltage adjustment period through the power supply equipment with higher priority than the current priority.

judging whether the power supply unit is connected to the mainboard or not;

The power supply management unit is used for performing voltage protection and/or voltage conversion on a mainboard connector, a combining switch circuit, a mainboard voltage regulator and a priority control unit on the mainboard.

The power supply management unit is formed by combining any one or more of a hot plug circuit, a DC-DC circuit, an AC-DC circuit and a rectification circuit, and is specifically determined according to the type of power supply equipment.

With reference to fig. 3, the motherboard connector J2 connects the output of the adapter and the input of the hot-plug circuit H0, and the output of the hot-plug circuit H0 connects the combined electronic switch S1, so as to supply power to the motherboard voltage adjustment period VR1 by the adapter. The main board connector J3 is connected with PoE and the rectifying circuit, voltage output by PoE is input into the DC-DC converter M0 and then to the combiner electronic switch S3 after passing through the rectifying circuit, and power supply of the PoE to the main board voltage adjustment period VR1 is realized. The main board connector J4 is connected with the output of industrial power supply (or battery pack power supply and other direct current power supply) and the input of the hot plug circuit H1, and the output of the hot plug circuit H1 is transmitted to the DC-DC converter M1 and then to the combined electronic switch S3, so that the power supply of the industrial power supply (or battery pack power supply and other direct current power supply) to the voltage regulation period VR1 of the main board is realized.

The hot-swap circuit includes, but is not limited to, single switch, double switch, multi-switch, and hybrid switch and diode etc. which are formed by discrete switches and built-in chip integration. The rectification circuit includes, but is not limited to, a passive bridge stack, an active bridge, a bridgeless rectifier, a totem bridgeless rectifier, etc. and can realize detection control circuits of alternating current to direct current changes. DC-DC power supplies include, but are not limited to, isolated and non-isolated power converters, including, but not limited to, modular power supplies and power supplies made up of discrete devices, including, but not limited to, forward type converters.

The hot plug H0 and the switch S1 can adopt a discrete device scheme or an integrated design scheme. The RJ45 connector usually has a hot plug function, if the RJ45 type connector without the hot plug function is adopted, a corresponding hot plug circuit needs to be matched, then the corresponding hot plug circuit passes through the rectifying circuit, and then the corresponding hot plug circuit participates in combining through the combining switch circuit after DC-DC power supply conversion.

The connector J3 is connected with a PoE power supply and rectification circuit, and then the PoE power supply and rectification circuit is input into the DC-DC converter and then is input into the combiner switch S3 to realize PoE power supply access of the edge micro server.

In some embodiments, the priority control unit is further configured to:

As shown in fig. 4, a flow chart of the priority control unit provided in the present invention for performing power supply control on the converged power supply system shown in fig. 3 is shown.

The expansion board connector J0 is provided with an on-position signal, and after the server is powered on, the priority power supply control unit executes the following steps:

the PSU with the first priority supplies power, and whether the PSU is connected with the power supply is judged through whether the J0 bit signal is connected with the J1. If the J0 on-bit signal is connected with the J1, a forced disconnection signal is generated to forcibly disconnect S1, S2, S3, H0, H1, M0 and M1, and other priority power supply sources are forbidden to be connected; and otherwise, entering second priority adaptive power supply access judgment.

After the first priority PSU is powered on and is forcibly turned off S1, S2, S3, H0, H1, M0, and M1, it is determined whether the voltage at the point a of the common bus is higher than a set value (e.g. 8V). And if the voltage of the point A is higher than the set value (such as 8V), the fused combined electronic switch S4 is opened to supply power for the main board VR1, otherwise, a PSU power supply fault is reported, and the operation returns to the beginning.

The PSU with the first priority is powered on and is forcibly turned off S1, S2, S3, H0, M0 and M1; the voltage at point a is higher than the set value (e.g., 8V), and S4 is turned on to supply power to the main board voltage regulator VR 1. It is detected whether the voltage at point G is higher than a set value (e.g., 8V). If the voltage at the point G is higher than the set value (such as 8V), generating a power supply normal signal PG4 of the main board voltage regulator to report to the server, otherwise, reporting power supply abnormality to the server, and returning to the beginning.

The PSU with the first priority supplies power, and whether the PSU is connected with the power supply is judged through whether the J0 bit signal is connected with the J1. And if the J0 is not accessed in the bit signal J1, the second priority adaptive power supply access judgment is entered.

The second priority adapter supplies power, and whether the adapter is connected to supply power is judged by detecting whether the voltage of the point B is higher than a set value (such as 5V). If the voltage at the point B is higher than the set value (for example, 5V), generating a forced turn-off signal to forcibly turn off S2, S3, M0 and M1, and forbidding the access of power supplies with other priorities; otherwise, entering a third priority industrial power supply (or battery pack or other power supply) access judgment.

The second priority adapter is powered on, the voltage at the point B is higher than a set value (such as 5V), and S2, S3, M0 and M1 are forcibly turned off; after a delay (e.g., 10ms), H0 is turned on by detecting whether the voltage at point B is higher than a set value (e.g., 8V), S1. If the voltage at the point B is higher than the set value (such as 8V), opening H0, S1, generating an adapter power supply normal signal PG1 and reporting to the server; otherwise, reporting the power supply fault of the server adapter, and returning to the beginning.

The second priority adapter is powered on, the voltage at the point B is higher than a set value (such as 5V), and S2, S3, M0 and M1 are forcibly turned off; delaying (such as 10ms), the voltage at the point B is higher than the set value (such as 8V), opening H0, S1, generating an adapter power supply normal signal PG1 and reporting to the server. And judging whether the voltage of the point A of the common bus is higher than a set value (such as 8V). If the voltage at the point A is higher than the set value (such as 8V), the fused combiner electronic switch S4 is opened to supply power to the main board VR 1; otherwise, reporting the failure of the hot plug H0 and returning to the beginning.

The second priority adapter is powered on, the voltage at the point B is higher than a set value (such as 5V), and S2, S3, M0 and M1 are forcibly turned off; delaying (such as 10ms), enabling the voltage of the point B to be higher than a set value (such as 8V), opening H0, S1, generating an adapter power supply normal signal PG1 and reporting to the server; when the voltage at the point A is higher than a set value (such as 8V), opening S4 to supply power to the main board VR 1; it is detected whether the voltage at the point G is higher than a set value (e.g., 8V). If the voltage at the point G is higher than the set value (such as 8V), generating a power supply normal signal PG4 of the main board voltage regulator and reporting to the server, otherwise, reporting power supply abnormality and returning to the beginning.

Supplying power to a PSU with a first priority, judging whether the PSU is connected with power supply through whether a J0 in-place signal is connected with a J1, judging whether a J0 in-place signal is connected with a J1, and entering second priority adaptive power supply connection judgment; and the second priority adapter supplies power, judges whether the adapter is connected to supply power by detecting whether the voltage of the point B is higher than a set value (such as 5V), and enters third priority industrial power supply (or battery pack or other power supply) access judgment if the voltage of the point B is higher than the set value (such as 5V).

And the third priority industrial power supply (or battery pack or other power supplies) judges whether the industrial power supply (or battery pack or other power supplies) is connected with the power supply by detecting whether the voltage of the point C is higher than a set value (such as 7V). If the voltage at the point C is higher than the set value (such as 7V), generating a forced turn-off signal to forcibly turn off S1, S2, H0 and M0, and forbidding the access of power supplies with other priorities; otherwise, entering the fourth priority PoE handshake judgment.

A third priority industrial power supply (or battery pack or other power supply) is switched on, the voltage at the point C is higher than a set value (such as 7V), and S1, S2, H0 and M0 are forcibly turned off; and delaying (such as 20ms), and judging whether to open H1, M1 and S3 by detecting whether the voltage at the point C is higher than a set value (such as 8V). If the voltage at the point C is higher than the set value (such as 8V), opening H1, M1 and S3, and generating an industrial power supply (or battery pack or other power supply) normal power supply signal PG2 to report to the server; otherwise, reporting the fault of industrial power supply (or battery pack or other power supply) of the server, and returning to the beginning.

The third priority industrial power supply (or battery pack or other power supply) is switched on, the voltage at the point C is higher than a set value (such as 7V), and S1, S2, H0 and M0 are forcibly turned off; delaying (such as 20ms), when the voltage at the point C is higher than a set value (such as 8V), opening H1, M1 and S3, and generating an industrial power supply (or battery pack or other power supply) normal power supply signal PG2 to report to the server. And judging whether the voltage of the point A of the common bus is higher than a set value (such as 8V). If the voltage at the point A is higher than the set value (such as 8V), the fused combiner electronic switch S4 is opened to supply power to the main board VR 1; otherwise, reporting faults of hot plug H1 and DC-DC power module M1, and returning to the beginning.

A third priority industrial power supply (or battery pack or other power supply) is switched on, the voltage at the point C is higher than a set value (such as 7V), and S1, S2, H0 and M0 are forcibly turned off; delaying (such as 20ms), enabling the voltage at the point C to be higher than a set value (such as 8V), opening H1, M1 and S3, and generating an industrial power supply (or battery pack or other power supply) normal power supply signal PG2 to report to the server; when the voltage at the point A is higher than a set value (such as 8V), opening S4 to supply power to the main board VR 1; it is detected whether the voltage at the point G is higher than a set value (e.g., 8V). If the voltage at the point G is higher than the set value (such as 8V), generating a power supply normal signal PG4 of the main board voltage regulator and reporting to the server, otherwise, reporting power supply abnormality and returning to the beginning.

Supplying power to a PSU with a first priority, judging whether the PSU is connected with power supply through whether a J0 in-place signal is connected with a J1, judging whether a J0 in-place signal is connected with a J1, and entering second priority adaptive power supply connection judgment; the second priority adapter supplies power, whether the adapter is connected to supply power is judged by detecting whether the voltage of the point B is higher than a set value (such as 5V), whether the voltage of the point B is higher than the set value (such as 5V) is judged, and the third priority industrial power supply (or battery pack or other power supplies) is connected and judged; the industrial power supply (or battery pack or other power supply) of the third priority judges whether the adapter is connected to supply power by detecting whether the voltage of the point C is higher than a set value (such as 7V), and if the voltage of the point C is higher than the set value (such as 7V), the PoE handshake judgment of the fourth priority is carried out;

and the fourth priority PoE identifies, detects and judges whether the handshake is successful or not through a PoE handshake integrated chip. If the handshake is successful, entering PoE power supply access detection; otherwise, reporting PoE handshake failure, and returning to start.

And the fourth priority PoE identifies and detects successful handshake through a PoE handshake integrated chip, enters PoE power supply, and judges whether power supply is accessed or not by detecting whether the voltage of a D point is higher than a set value (such as 38V). If the voltage at the point D is higher than the set value (for example, 38V), generating a forced turn-off signal to forcibly turn off H0, S1, H1, M1 and S3, and forbidding the access of power supplies with other priorities; otherwise, reporting the PoE power supply fault and returning to the beginning.

The fourth priority PoE identifies and detects successful handshake through a PoE handshake integrated chip and enters PoE power supply; the voltage at the point D is higher than a set value (such as 38V), and H0, S1, H1, M1 and S3 are forcibly turned off; and delaying (e.g., 50ms), and judging whether to open the M0 by detecting whether the voltage at the point D is higher than a set value (e.g., 40V), S2. If the voltage at the point D is higher than the set value (such as 40V), turning on M0, S2, generating a PoE power supply normal signal PG3 and reporting to the server; otherwise, reporting the server PoE rectification fault and returning to the beginning.

The fourth priority PoE identifies and detects successful handshake through a PoE handshake integrated chip and enters PoE power supply; the voltage at the point D is higher than a set value (such as 38V), and H0, S1, H1, M1 and S3 are forcibly turned off; delaying (e.g. 50ms), the voltage at point D is higher than the set value (e.g. 40V), turning on M0, S2, generating PoE power normal signal PG3 and reporting to the server. And judging whether the voltage of the point A of the common bus is higher than a set value (such as 8V). If the voltage at the point A is higher than the set value (such as 8V), the fused combiner electronic switch S4 is opened to supply power to the main board VR 1; otherwise, reporting the faults of the DC-DC power supply modules M0 and S2, and returning to the beginning.

The fourth priority PoE identifies and detects successful handshake through a PoE handshake integrated chip and enters PoE power supply; the voltage at the point D is higher than a set value (such as 38V), and H0, S1, H1, M1 and S3 are forcibly turned off; delaying (such as 50ms), enabling the voltage of a point D to be higher than a set value (such as 40V), opening M0, S2, generating a PoE power supply normal signal PG3 and reporting to the server; when the voltage at the point A is higher than a set value (such as 8V), opening S4 to supply power to the main board VR 1; it is detected whether the voltage at the point G is higher than a set value (e.g., 8V). If the voltage at the point G is higher than a set value (such as 8V), a power supply normal signal PG4 of the main board voltage regulator is generated and reported to the server, otherwise, power supply abnormality is reported, and the process returns to the beginning.

The delay time in this embodiment is generally 10ms to 100ms, but is not limited thereto. The voltage set value is the same or gradually increased at different points of the same path.

After the priority control unit reports the abnormal power supply information of the power supply equipment or the power supply unit or the mainboard voltage regulator to the server every time, the power supply unit returns to the power supply unit with the highest priority to perform power supply access judgment again. And after the same abnormal information is reported to the server for several times in a connection mode, the manager informs maintenance personnel to overhaul the fusion power supply system.

The process is the only priority power supply control logic of the priority control unit, and as the PSU power supply is set as the highest priority, and as long as the PSU power supply is accessed, the expansion board structure shields the access of other priority power supply sources of the mainboard to the connector interface, other priority power supply sources cannot be accessed due to the existence of the expansion board PSU power supply. When the PSU is accessed with the highest priority, the priority control unit generates a normal power supply signal PG4 of the main board voltage regulator and a normal power supply signal PG0 of the PSU; when the second priority adapter is normally connected to supply power, the priority control unit generates a power supply normal signal PG4 of the main board voltage regulator and a power supply normal signal PG1 of the adapter; when the third priority industrial power supply (or battery pack or other power supply) is normally switched on for power supply, the priority control unit generates a main board voltage regulator power supply normal signal PG4 and an industrial power supply (or battery pack or other power supply) power supply normal signal PG 2; when the PoE of the fourth priority is normally powered on, the priority control unit generates a normal power supply signal PG4 and a normal PoE power supply signal PG3 for the main board voltage regulator. It can be seen that as long as there is a power supply source normally connected to the system, the PG4 signal and PGx (priority of x corresponding to the power supply source) signal corresponding to the power supply source are generated when the system is powered normally. Thus, the PGx signal may be set to a high level.

acquiring the priority of the current power supply equipment;

The fusion power supply system establishes priority for various different power supply sources through the unique priority power supply control logic, and realizes that any one power supply source in the priority power supply sources can be the unique power supply source when being accessed to the server. The method provides a basic condition for the access of the power supply source with high priority caused by misoperation, and makes the implementation of the access arbitration logic after high priority possible. It is also shown that in the event of a malfunction, the low priority power source is in an inactive state even if it is accessed, and only after the high priority power source is accessed will the arbitration logic be triggered.

The server can not avoid the condition that the physical structure connector interfaces of part or all power supply interfaces leak simultaneously, and can not avoid the practical condition that different power supply sources are accessed simultaneously or successively due to misoperation and use of a user. And the high-priority rear access arbitration logic is adopted to ensure that the rear access high-priority power supply source supplies power preferentially or the power supply source supplying power simultaneously supplies power according to the set priority. Once one of the power supply sources allowed by the regulation is accessed through the corresponding connector port, other power supplies are forcibly turned off, and after the accessed power supply source generates the corresponding working normal indication signal PG, under the condition that other power supply sources are accessed simultaneously or later, the only high-priority power supply is realized through the high-priority rear access arbitration logic. And after the back-in high-priority power supply source is detected, starting an arbitration logic to control the power supply switching system, so as to realize seamless cut-in of the back-in high-priority power supply. The late-in low priority power supply cannot be started, and the arbitration logic is triggered only by the late-in high priority power supply. Therefore, the server is ensured to be powered by the power supply equipment with the set priority and adapt to different application scenes.

Referring to fig. 3, the present embodiment is described by setting priorities for four power sources, where the priorities are defined in advance as PSU being the first priority, adapter being the second priority, PoE (power over ethernet) being the fourth priority, and industrial power being the third priority. First priority > second priority > third priority > fourth priority, and the expansion board connector J1 is an off-site signal connector.

After the expansion board is connected, only the PSU power supply interface and the PoE interface are leaked, other interfaces are blocked, other priority power supply sources cannot be connected, but the priority of the PSU power supply is set to be the highest, so that the misoperation insertion condition does not exist, the arbitration logic is not triggered, and the misoperation insertion condition caused by the simultaneous leakage of the second priority interface, the third priority interface and the fourth priority interface only exists. And because the access of the power supply source with the lower level does not have the arbitration logic triggering condition under the condition that the power supply source with the higher level normally supplies power, the arbitration logic triggering condition does not exist under the condition that the power supply source with the lower level normally supplies power.

In summary, the present embodiment describes the trigger arbitration logic under the condition of the third-priority industrial power supply or the fourth-priority PoE normal power supply.

As shown in fig. 5, a flow chart of an embodiment of the present invention for the priority control unit to arbitrate the converged power supply system shown in fig. 3 under the condition of normal power supply of the third-priority industrial power supply is provided.

The specific arbitration process is as follows:

when the industrial power supply access of the third priority is normal, the PG2 and PG4 state indicating signals are generated and are both at a high level.

PG2 and PG4 do AND logic, output logic high, and the access arbitration logic starts after the high priority.

And the third priority industrial power supply is normal, and the second priority adapter power supply is inserted for judgment. Whether the adapter is powered on or not is judged by detecting whether the voltage of the point B is higher than a set value (such as 10V). If the voltage of the point B is higher than the set value (such as 10V), the monitoring is continued, and the server is reported that no second priority adapter is powered and inserted, and the trigger arbitration logic is not provided. If the voltage at the point B is higher than a set value (such as 10V), the S3 is disconnected to enable the voltage to be in a single-phase conduction state of the diode, the backward flowing is prevented, and the power is continuously supplied to the mainboard voltage regulator through the body diode or the parallel diode; delay (e.g., 10ms), turn on H0. Whether the hot-plug integrated chip H0 works normally is judged by detecting whether the voltage at the point B1 is higher than a set value (such as 10V). If the voltage at the point B1 is not higher than the set value (such as 10V), reporting the fault of the hot-plug integrated chip H0 of the server, not providing the power supply cut-in condition, closing H0, delaying (such as 10ms), opening S3, circularly judging (such as 2 times), confirming that the hot-plug integrated chip H0 is abnormal, reporting the abnormal state to the server, and terminating arbitration logic. If the voltage at the point B1 is higher than the set value (such as 10V), the H1 and the M1 are disconnected, and the industrial power supply (or the battery pack or other power supplies) with the third priority is forced to be powered off; the main board voltage regulator is powered by the body diode or the parallel diode of S1, delayed (e.g. 10ms), and turned on S1, generating a second priority adapter power supply normal status signal PG 1. And then, inserting a second priority adapter for power supply and seamless switching of third priority industrial power supply (or battery pack or other power supply), wherein the third priority industrial power supply is in an invalid state, the second priority adapter supplies power to supply power for the mainboard voltage regulator, and the access arbitration logic is finished after the high priority.

As shown in fig. 6, a flow chart of an embodiment of the priority control unit provided by the present invention arbitrating the fusion power supply system shown in fig. 3 under the condition that the PoE with the fourth priority is normally powered. The specific arbitration process is as follows:

the fourth priority PoE access has two conditions of an adapter and an inserted trigger arbitration logic after industrial power supply. In two or more cases, arbitration may be detected from high priority to low priority, or from low priority to high priority. The present embodiment is described only in terms of a specific procedure for triggering arbitration from high priority to low priority. The specific arbitration process is as follows:

when the fourth priority PoE access is powered normally, the PG3 and PG4 status indication signals are generated, and both signals are high level. PG3 and PG4 do AND logic, output logic high, access arbitration logic after triggering high priority.

And the fourth priority PoE supplies power normally, and the second priority adapter supplies power for insertion judgment. Whether the adapter is powered on or not is judged by detecting whether the voltage of the point B is higher than a set value (such as 10V). And if the voltage of the point B is higher than a set value (such as 10V), continuing monitoring, reporting that the server has no power supply insertion of a second priority adapter, and switching to third priority industrial power supply (or battery pack or other power supply) insertion judgment arbitration. If the voltage at the point B is higher than a set value (such as 10V), closing S2 to enable the voltage to be in a single-phase conduction state of a diode, preventing reverse irrigation from occurring, and continuously supplying power to the mainboard voltage regulator through a body diode or a parallel diode; delay (e.g., 10ms), turn on H0. Whether the hot-plug integrated chip H0 works normally is judged by detecting whether the voltage at the point B1 is higher than a set value (such as 10V). If the voltage at the point B1 is not higher than the set value (such as 10V), reporting that the server hot plug integrated chip H0 has a fault, having no power supply cut-in condition, closing H0, delaying (such as 10ms), opening S2, circularly judging (such as 2 times), confirming that the hot plug integrated chip H0 is abnormal, reporting to the server, and switching to the third priority industrial power supply insertion judgment. If the voltage at point B1 is higher than the set value (e.g. 10V), turn off M0, force the PoE of the fourth priority to power down, the system supplies power to the main board voltage regulator through the body diode or the parallel diode of S1, delay (e.g. 10ms), turn on S1, and generate the normal status signal PG1 for supplying power to the adapter of the second priority. And then, after the seamless switching between the second priority adapter power supply and the fourth priority PoE is finished, the fourth priority PoE is in an invalid state, the second priority adapter supplies power to supply power for the mainboard voltage regulator, and the high-priority rear access arbitration logic is finished.

And the fourth priority PoE is normal, but the voltage of the point B is lower than a set value (such as 10V) or the voltage of the point B1 is lower than the set value (such as 10V), and when a fault exists in a line such as a hot plug H0, the power supply of the second priority adapter cannot be switched in, and the second priority adapter insertion judgment is switched to the third priority industrial power supply insertion judgment.

And judging whether the third-priority industrial power supply is connected with power supply or not by detecting whether the voltage of the point C is higher than a set value (such as 10V). And if the voltage of the point C is higher than a set value (such as 10V), continuing monitoring, reporting that the server has no third-priority industrial power supply insertion, and not triggering arbitration logic. If the voltage at the point C is higher than a set value (such as 10V), closing S2 to enable the voltage to be in a single-phase conduction state of a diode, preventing reverse irrigation from occurring, and continuously supplying power to the mainboard voltage regulator through a body diode or a parallel diode; delay (e.g., 10ms), turn on H1, M1. Whether the H1 works normally is judged by detecting whether the voltage at the point C1 is higher than a set value (such as 10V). If the voltage at the point C1 is not higher than the set value (such as 10V), reporting that the server H1 has a fault and does not have a power supply cut-in condition, disconnecting H1 and M1, delaying (such as 10ms), opening S2, circularly judging (such as 2 times), confirming that the hot-plug integrated chip H1 is abnormal, reporting to the server, and terminating arbitration logic. If the voltage at the point C1 is higher than the set value (for example, 10V), if yes, the M0 is turned off, the PoE of the fourth priority is forced to be powered off, the main board voltage regulator is powered through the body diode or the parallel diode of S3, the S3 is turned on after a delay (for example, 10ms), and the normal state signal PG2 of the industrial power supply of the third priority is generated. And then, inserting third-priority industrial power supply and fourth-priority PoE for seamless switching, wherein the fourth-priority PoE is in an invalid state, the third-priority industrial power supply provides power for the main board voltage regulator, and the access arbitration logic is finished after the high priority.

Finally, it should be noted that, as will be understood by those skilled in the art, all or part of the processes of the methods of the above embodiments may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium of the program may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like. The embodiments of the computer program may achieve the same or similar effects as any of the above-described method embodiments.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments of the present invention.

The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.

It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.

Claims

1. A converged power supply system for servers, comprising:

2. The converged power supply system of claim 1, wherein the combiner switch circuit comprises:

3. The converged power supply system of claim 2, wherein the expansion board includes: and the extension board connectors are respectively connected with the corresponding main board connectors and the corresponding power supply unit, wherein the extension board connectors are extension board connectors with in-place signals or extension board connectors without in-place signals.

4. The converged power supply system of claim 3, wherein the extension board connectors without in-place signals are connected with the corresponding motherboard connectors and the power supply unit, respectively;

5. The converged power supply system of claim 2, wherein after the servers are powered on, the priority control unit is configured to:

judging whether the power supply unit is connected to the mainboard or not;

6. The fusion power supply system according to claim 5, further comprising a plurality of power supply management units, wherein the motherboard connector corresponding to the power supply device is connected to the corresponding combiner electronic switch through the corresponding power supply management unit.

7. The converged power supply system of claim 6, wherein the priority control unit is further configured to:

8. The converged power supply system of claim 7, wherein turning on the power supply management unit and the corresponding combined electronic switch comprises:

9. The converged power supply system of claim 7, wherein the priority control unit is further configured to:

and if the voltage between the fusion combination electronic switch and the main board voltage regulator does not meet the preset requirement, sending a main board voltage regulator power supply fault signal to the server.

10. The converged power supply system according to claim 7, wherein after the power supply device supplies power to the main board voltage regulator, the priority control unit is configured to:

acquiring the priority of the current power supply equipment;