Power supply circuit, power supply method, server, electronic device, program product, and medium

Abstract

This application discloses a power supply circuit, power supply method, server, electronic device, program product, and medium, relating to the field of server power supply technology. The power supply circuit of this application is applied to a server. A first connector and a second connector are located on opposite first and second sides of the motherboard. A protection module is used to protect the computing and storage module between the first connector and the second connector. Both the first connector and the second connector can be used as power connectors to connect to the power board. An enable signal is output to the third drive terminal according to the connection position between the power board and the motherboard to control the connection state between the first drive terminal and the second drive terminal, realizing bidirectional power supply. When the voltage output terminal is connected to either the first connector or the second connector, the protection module ensures that the power supply circuit operates normally and avoids damage to the motherboard.

Description

Technical Field

[0001] This application relates to the field of server power supply technology, and in particular to a power supply circuit, power supply method, server, electronic equipment, program product, and medium. Background Technology

[0002] As one of the core components of a data center, the server motherboard plays a vital role in connecting and managing various hardware resources. Developing a single motherboard that can be used in one or more projects simultaneously can save motherboard development resources and increase the integration of the motherboard.

[0003] Existing motherboard power supply circuit designs can only meet unidirectional power supply requirements; that is, motherboards do not support bidirectional power supply in a physical sense. Summary of the Invention

[0004] This application provides a power supply circuit, power supply method, server, electronic device, program product, and medium to at least solve the problem that the power supply circuit of the server in the related art cannot provide bidirectional power supply.

[0005] In a first aspect, this application provides a power supply circuit for use in a server, the server including a motherboard and a power supply board.

[0006] The motherboard includes:

[0007] At least one first connector located on the first side of the motherboard;

[0008] At least one second connector located on the second side opposite to the first side; and

[0009] A computing and storage module, wherein a first end of the computing and storage module is connected to the second connector;

[0010] The protection module includes a first driving terminal, a second driving terminal, and a third driving terminal. The first driving terminal is connected to the first connector, the second driving terminal is connected to the second connector and the first end of the computing and storage module, and the third driving terminal is used to turn on or off the connection between the first driving terminal and the second driving terminal according to the accessed enable signal.

[0011] The power board includes a voltage output terminal, which is connected to one of the first connector and the second connector. In a second aspect, this application also provides a server that includes the power supply circuitry of the first aspect of this application.

[0012] Thirdly, this application provides a power supply method applied to the power supply circuit of the first aspect of this application, the power supply method comprising:

[0013] Connect the voltage output terminal of the power board to one of the first connector and the second connector;

[0014] The voltage output terminal outputs a voltage signal;

[0015] An enable signal is input to the third drive terminal of the protection module to connect or disconnect the connection between the first drive terminal and the second drive terminal of the protection module.

[0016] Fourthly, this application provides an electronic device including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps of the power supply method as described in the third aspect of this application.

[0017] Fifthly, a computer program product includes a computer program / instructions, characterized in that, when the computer program / instructions are executed by a processor, they implement the steps of the power supply method as described in the third aspect of this application.

[0018] The power supply circuit of this application is applied to a server. The first connector and the second connector are located on opposite first and second sides of the motherboard. The protection module is used to protect the computing and storage module between the first connector and the second connector. Both the first connector and the second connector can be used as power connectors to connect to the power board. According to the connection position between the power board and the motherboard, an enable signal is output to the third drive terminal to control the connection state between the first drive terminal and the second drive terminal, so as to realize bidirectional power supply. When the voltage output terminal is connected to either the first connector or the second connector, the protection module ensures that the power supply circuit operates normally and avoids damage to the motherboard. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the motherboard power supply circuit for related technologies;

[0021] Figure 2 This is a circuit diagram of the first electronic fuse;

[0022] Figure 3 A schematic diagram of the reverse power supply circuit of a power supply circuit according to an embodiment of this application;

[0023] Figure 4 for Figure 3 A schematic diagram of the forward power supply circuit of the power supply circuit in the illustrated embodiment;

[0024] Figure 5 This is a circuit diagram of a multi-channel power supply circuit according to another embodiment of this application;

[0025] Figure 6 This is a circuit diagram of a multi-channel power supply circuit according to another embodiment of this application;

[0026] Figure 7 A circuit diagram of a power supply circuit using a first load board according to another embodiment of this application;

[0027] Figure 8 This is a circuit diagram of a multi-channel power supply circuit according to another embodiment of this application;

[0028] Figure 9 This is a circuit diagram of a power supply circuit application management board according to another embodiment of this application;

[0029] Figure 10 This is a circuit diagram of a power supply circuit using a second load board, according to another embodiment of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0031] It should be noted that, in the description of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The terms "first," "second," etc., in this application are used to distinguish similar objects and are not used to describe a specific order or sequence.

[0032] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The motherboard power supply circuit of the relevant technology is as follows: Figure 1 As shown.

[0034] The motherboard circuit diagram shows that the current flows from the power board through the connectors to the motherboard, then through two electronic fuses (first electronic fuse 1 and second electronic fuse 2) to power different units on the motherboard, and then through two connectors to power different loads on the load board. The entire current path is from left to right, from power supply to load.

[0035] Figure 2 The diagram shows the internal circuit of the first electronic fuse 1. The first electronic fuse 1 is a unidirectional MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor). In response to the enable signal at the gate G, the drain D and source S are connected. The first electronic fuse 1 contains a body diode, which runs from the source S to the drain D of the MOSFET. The first electronic fuse 1 has a protection function. When the voltage at the source S is higher than the voltage at the drain D, the fuse 1 internally identifies a short circuit between D and S, triggering protection and shutting down the MOSFET.

[0036] against Figure 1 As shown in the server power supply circuit, the motherboard in this power supply circuit does not support power supply from the power connector on the right load board, that is, the motherboard does not support reverse power supply, which means that the motherboard does not support bidirectional power supply in a physical sense.

[0037] The motherboard does not support bidirectional power supply for the following reasons:

[0038] 1. The electronic fuses on the current server system motherboard are high-current unidirectional conductors. The electronic fuses can conduct from left to right under control. However, when power is supplied from the right connector, the electronic fuses receive power at the output first and then at the input. The output voltage is higher than the input voltage, causing the electronic fuses to report a DS short (drain-source short circuit) error. After the error occurs, the MOSFET inside the electronic fuse is in the off state and cannot conduct high current. Therefore, it is impossible to achieve power supply from the right side of the motherboard.

[0039] 2. Referring to the structure of the electronic fuse, we can see that from the source to the drain, the body diode inside the electronic fuse can conduct a small current, at which point there is actually a voltage at the input. However, if the input capacitor is faulty, the motherboard will not have the electronic fuse protection function. A large current will flow through the body diode inside the electronic fuse, causing the fuse to burn out, resulting in a board failure. Therefore, even if a small current can be conducted on the right side of the motherboard, a large current will still prevent the motherboard from being powered from the right side.

[0040] 3. For example Figure 1As shown, multiple components on the motherboard are powered by two power supply circuits. The first electronic fuse 1 and the second electronic fuse 2 are respectively installed on the two power supply circuits. The input terminals of the electronic fuses of the two power supply circuits are connected together, and the output terminals of the electronic fuses of the two power supply circuits are independent power supply terminals.

[0041] To enable reverse power supply functionality on the motherboard, an uneven load current distribution will occur between the first and second power supply paths.

[0042] For example, the second electronic fuse 2 is on, and the first electronic fuse 1 is off. However, since the inputs of the second electronic fuse 2 and the first electronic fuse 1 are connected together, and since the body diode of the first electronic fuse 1 exists, the first electronic fuse 1 can be turned on through the body diode. If there is a large current in the second power supply path, there will also be a large current turning on the body diode of the first electronic fuse 1. However, the body diode cannot withstand the large current, which will cause the first electronic fuse 1 to burn out. This not only prevents the motherboard from being powered from the right side, but may also cause the motherboard to malfunction.

[0043] Therefore, the presence of an electronic fuse on the motherboard as a functional structure for motherboard protection limits the bidirectional power supply design of the motherboard. In view of this, this application proposes a power supply circuit, power supply method, server, electronic device, program product, and medium to solve one or more of the above-mentioned problems.

[0044] This application proposes a power supply circuit for use in servers, such as... Figure 3 As shown, the server includes a motherboard 10 and a power supply board 20.

[0045] Motherboard 10 includes:

[0046] At least one first connector 11 located on the first side of the motherboard 10;

[0047] At least one second connector 12 located on the second side opposite to the first side; and

[0048] The first end of the computing and storage module 13 is connected to the second connector 12;

[0049] The protection module 14 includes a first driving end 141, a second driving end 142 and a third driving end 143. The first driving end 141 is connected to the first connector 11. The second driving end 142 is connected to the second connector 12 and the first end of the computing and storage module 13 respectively. The third driving end 143 is used to turn on or off the connection between the first driving end 141 and the second driving end 142 according to the accessed enable signal.

[0050] The power board 20 includes a voltage output terminal 21, which is connected to one of the first connector 11 and the second connector 12.

[0051] The power supply circuit of this application is applied to a server. The first connector 11 and the second connector 12 are located on opposite first and second sides of the motherboard 10. The protection module 14 is used to protect the computing storage module 13 between the first connector 11 and the second connector 12. Both the first connector 11 and the second connector 12 can be used as power connectors to connect to the power board 20. According to the connection position between the power board 20 and the motherboard 10, an enable signal is output to the third drive terminal 143 to control the connection state between the first drive terminal 141 and the second drive terminal 142, so as to realize bidirectional power supply. When the voltage output terminal 21 is connected to either the first connector 11 or the second connector 12, the protection module 14 is used to ensure the normal operation of the power supply circuit and avoid damage to the motherboard 10.

[0052] In an optional embodiment, such as Figure 3 As shown, the protection module 14 is an electronic fuse. The first driving terminal 141 is the drain (D), the second driving terminal 142 is the source (S), and the third driving terminal 143 is the gate (G). The first driving terminal 141 is connected to the first connector 11. The second driving terminal 142 is split into two paths and connected to the second connector 12 and the first terminal of the computing and storage module 13. The third driving terminal 143 is connected to the enable signal. The three-terminal driving characteristics of the electronic fuse are used to protect the components on the motherboard 10.

[0053] like Figure 1 As shown, with Figure 1 The direction of the current from left to right is the positive direction, while the reverse power supply is the direction of the current from right to left. The following text will continue to use this direction to explain the positive or reverse power supply.

[0054] In an optional embodiment, such as Figure 3 As shown,

[0055] When voltage output terminal 21 is connected to the second connector 12, the second drive terminal 142 receives the voltage signal from voltage output terminal 21, and the third drive terminal 143 disconnects the connection between the first drive terminal 141 and the second drive terminal 142 according to the enable signal.

[0056] The power supply circuit path includes a first path, which flows from the voltage output terminal 21 through the second connector 12 and the computing and storage module 13.

[0057] In this embodiment, corresponding to reverse power supply, the power board 20 is located on the right side of the motherboard 10. The voltage output terminal 21 of the power board 20 is connected to the second connector 12 on the right side of the motherboard 10. The voltage output terminal 21 outputs a voltage signal, and the second connector 12 transmits the voltage signal to the second drive terminal 142 of the protection module 14 and to the computing and storage module 13. In the reverse power supply state, the power board 20 outputs a low-level enable signal to the third drive terminal 143 of the protection module 14. For example, Figure 3 As shown, the second connector 12 includes a second enable interface 121. When the power board 20 is connected to the second connector 12, the second enable interface 121 transmits an enable signal to the third drive terminal 143. This enable signal causes the first drive terminal 141 and the second drive terminal 142 of the protection module 14 to disconnect, preventing reverse current from flowing through the first drive terminal 141.

[0058] The power supply path is only the voltage output terminal 21 of the power board 20, the second connector 12, the computing and storage module 13, and ends at the second drive terminal 142. After the current is consumed by the computing and storage module 13, it flows back to the power board 20 through the ground line of the motherboard 10, forming a closed loop.

[0059] In the first path of reverse power supply in this embodiment, by switching the protection module 14 to the disconnected state, reverse current is prevented from flowing through the main circuit of the protection module 14. From the current path design, the faults such as body diode burnout and source-drain short circuit protection triggering caused by reverse current when the electronic fuse is used as the protection module 14 are avoided, thus ensuring the safety of the core components of the motherboard 10 during reverse power supply.

[0060] In one example, such as Figure 3 As shown, the first connector 11 includes a first enable interface 111, used to transmit an enable signal to the third drive terminal 143 when the power board 20 is connected to the first connector 11. The second connector 12 includes a second enable interface 121, used to transmit an enable signal to the third drive terminal 143 when the power board 20 is connected to the second connector 12.

[0061] In an optional embodiment, such as Figure 4 As shown,

[0062] When voltage output terminal 21 is connected to the first connector 11, the first drive terminal 141 receives the voltage signal from voltage output terminal 21, and the third drive terminal 143 connects the first drive terminal 141 and the second drive terminal 142 according to the enable signal.

[0063] The power supply circuit path includes:

[0064] The second path flows from the voltage output terminal 21 through the first driving terminal 141, the second driving terminal 142, and the computation and storage module 13; and

[0065] The third path flows from the voltage output terminal 21 through the first drive terminal 141, the second drive terminal 142, and the second connector 12.

[0066] This embodiment corresponds to a forward power supply scenario. The voltage output terminal 21 of the power board 20 is connected to the first connector 11 on the left side of the motherboard 10. The first connector 11 transmits the voltage signal to the first drive terminal 141 of the protection module 14. In the forward power supply state, the power supply outputs a high-level enable signal to the third drive terminal 143 of the protection module 14. In one example, such as Figure 4 As shown, the first connector 11 includes a first enable interface 111. When the power board 20 is connected to the first connector 11, the first enable interface 111 transmits an enable signal to the third drive terminal 143, and the enable signal connects the first drive terminal 141 and the second drive terminal 142.

[0067] like Figure 4 As shown, in the forward power supply state, the power supply path is divided into two paths: the second path and the third path.

[0068] The second path is the power board 20, the first connector 11, the first driver terminal 141, the second driver terminal 142, and the computing and storage module 13. The second path provides power to the core components of the motherboard 10. The third path is the power board 20, the first connector 11, the first driver terminal 141, the second driver terminal 142, and the second connector 12. In this case, the motherboard 10 can simultaneously act as both the power receiving unit and the power supply unit. It can be connected to an external load board, such as a hard disk array card, through the second connector 12. Based on this configuration, the power supply of the expanded device can be extended.

[0069] This forward power supply path ensures basic power supply to the computing and storage module 13 while also supporting external load board expansion, enhancing the functional expandability of the motherboard 10 and adapting to the needs of multiple server components working together, such as data storage and peripheral device connections. The protection module 14 conducts normally during forward power supply, providing real-time current protection for both paths. If an overload occurs in either the second or third path, the protection module 14 immediately disconnects, preventing the fault from spreading to the power board 20 or the core components of the motherboard 10, thus improving the safety of the forward power supply.

[0070] In an optional embodiment, such as Figure 5 and Figure 6 As shown, the motherboard 10 includes at least two computing and storage modules 13 connected in parallel.

[0071] The second connector 12 includes the same number of second voltage interfaces 122 as the computing and storage modules 13.

[0072] The second voltage interface 122 corresponds one-to-one with the computing and storage module 13, and the second voltage interface 122 is connected to the first end of the computing and storage module 13.

[0073] The number of protection modules 14 is the same as the number of computing and storage modules 13.

[0074] The protection module 14 corresponds one-to-one with the computing and storage module 13.

[0075] The second driving terminal 142 is connected to the first terminal of the computing and storage module 13 and to the second voltage interface 122;

[0076] Each third drive terminal 143 is independently connected to an enable signal.

[0077] This embodiment takes into account the situation where multiple computing and storage modules 13 are set in the motherboard 10, requiring independent circuits to power each computing and storage module 13 separately. Figure 5 The motherboard 10 shown is configured with two parallel computing and storage modules 13 as an example:

[0078] The second connector 12 has two independent second voltage interfaces 122, and two corresponding protection modules 14. Each second voltage interface 122 is connected to the first end of a computing and storage module 13 through wiring. The second drive end 142 of each protection module 14 is connected to the first end of a computing and storage module 13 and a corresponding second voltage interface 122. The third drive end 143 of each protection module 14 is connected to an independent enable signal, which can drive the protection module 14 independently.

[0079] In an optional embodiment, adjacent second voltage interfaces 122 of the second connector 12 are isolated from each other via a ground connection GND, for example... Figure 5 As shown, a grounding connection GND is provided between the two second voltage interfaces 122 (PWR) of the second connector 12 to avoid voltage crosstalk between parallel modules.

[0080] In this power supply board structure with 20 to more than 10 power supply circuits on the motherboard, the power supply paths for forward and reverse power supply are as follows: Figure 3 and Figure 4 As shown, it will not be described again here. This embodiment supports the parallel connection of multiple computing and storage modules 13, which can realize the expansion of server computing power, such as the expansion of dual-CPU architecture, to meet the needs of high-performance computing scenarios. At the same time, through the design of the protection module 14 corresponding one-to-one with the circuit where the computing and storage module 13 is located, independent power supply protection for each module is realized.

[0081] In this embodiment, adjacent second voltage interfaces 122 are isolated using a grounding connection port GND to avoid current cross-interference between parallel modules, ensuring that each computing and storage module 13 receives a clean and stable power supply, reducing hardware failures caused by interference, and improving the stability of multi-module collaborative operation.

[0082] In an optional embodiment, such as Figure 5 As shown, the first connector 11 includes a plurality of first voltage interfaces 112. The number of first voltage interfaces 112 of the first connector 11 is the same as the number of computing storage modules 13. The number of first connectors 112 is the same as the number of protection modules 14. Each first voltage interface 112 is connected to a first drive terminal 141 of a protection module 14. That is, the first voltage interface 112 corresponds one-to-one with the protection module 14. The first voltage interface 112 is connected to the first drive terminal 141 of the protection module 14. The enable signal connected to each third drive terminal 143 is an independent voltage enable signal.

[0083] In this embodiment, as Figure 5 As shown, when the two computing and storage modules 13 of the motherboard 10 form two power supply circuits respectively, the first connector 11 is provided with two independent first voltage interfaces 112. Each first voltage interface 112 is connected to the first drive terminal 141 of a protection module 14 through wiring. The dual voltage connection port design of the first connector 11 enables independent current transmission when the power is supplied in the forward direction, avoids current conflict when multiple modules are powered, and ensures the independence and safety of the power supply of each computing and storage module 13.

[0084] In an optional embodiment, adjacent first voltage connection interfaces of the first connector 11 are isolated from each other via a ground connection GND, for example... Figure 5 As shown, a grounding connection GND is provided between the two adjacent first voltage interfaces 112 of the first connector 11 to avoid voltage crosstalk between parallel modules.

[0085] In this embodiment, the enable signal connected to each third driving terminal 143 is an independent voltage enable signal, for example, such as Figure 5 As shown, the second connector 12 includes two independent second enable interfaces 121. The power board 20 outputs voltage enable signals to the third drive terminal 143 of each protection module 14 through the two independent second enable interfaces 121.

[0086] During forward power supply, the voltage output terminal 21 of the power board 20 is connected to two first voltage interfaces 112 respectively. The first connector 11 includes two independent second enable interfaces 121. The power board 20 outputs voltage enable signals to the third drive terminal 143 of the protection module 14 through the second enable interfaces 121, and supplies power to the computing and storage module 13 through the second path. When the second connector 12 is connected to an external load board, it can supply power to the load board through the third path.

[0087] When power is supplied in reverse, such as Figure 5As shown, the power board 20 is located on the right side of the motherboard 10. The voltage output terminal 21 of the power board 20 is connected to two second voltage interfaces 122 respectively, and supplies power to the computing storage module 13 through the first path. The voltage output terminal 21 outputs a voltage signal, and the second connector 12 transmits the voltage signal to the second drive terminal 142 of the protection module 14 and to the computing storage module 13. In the reverse power supply state, the power board 20 outputs a low-level enable signal to the third drive terminal 143 of the two protection modules 14 respectively. The low-level enable signal disconnects the first drive terminal 141 and the second drive terminal 142 of the protection module 14, preventing reverse current from flowing through the first drive terminal 141.

[0088] Since the first voltage interface 112 on the left side of the motherboard 10 is connected to each protection module 14, the two power supply circuits with reverse power supply cannot be physically connected. Even if the electronic fuse structure acts as a small current conduction in the protection module 14, the two independent power supply paths will not cause the electronic fuse of one power supply circuit to conduct the other electronic fuse, thus burning out the circuit.

[0089] In an optional embodiment, such as Figure 6 As shown, at least one of the multiple computing and storage modules 13 includes a computing unit (CPU) 131, a storage unit (memory) 132 and a management unit 133 connected in parallel. The power input terminal of the three, that is, one end connected to the second drive terminal 142 of the protection module 14, serves as the first terminal of the computing and storage module 13.

[0090] For example, such as Figure 6 As shown, other computing and storage modules 13 may not include the management unit 133, but only include parallel computing units 131 and storage units 132, which use different power supply circuits to reduce the load on the motherboard 10.

[0091] In an optional embodiment, the management unit 133 includes at least one enable output terminal, and the at least one enable output terminal corresponds one-to-one with the circuit where the protection module connected in parallel with the management unit 133 is located. That is, the at least one enable output terminal corresponds one-to-one with the third drive terminal 143 of the protection module 14 not connected to the management unit 133. The management unit 133 outputs independent management enable signals to the third drive terminal 143 through the enable output terminal.

[0092] The first connector 11 includes the same number of first voltage interfaces 112 as the management unit 133.

[0093] The first voltage interface 112 corresponds one-to-one with the protection module 14 of the circuit where the management unit 133 is located.

[0094] When the voltage output terminal 21 is connected to the first voltage interface 112, the first voltage interface 112 connected to the management unit 133 outputs a voltage enable signal to the third drive terminal 143 of the circuit where the management unit 133 is located; when the voltage output terminal 21 is connected to the second voltage interface 122, the second voltage interface 122 connected to the management unit 133 outputs a voltage enable signal to the third drive terminal 143 of the circuit where the management unit 133 is located.

[0095] In this embodiment, the enable signal output sources connected to the third drive terminal 143 of multiple protection modules 14 are different, such as... Figure 6 As shown, among the enable signals connected to the multiple third drive terminals 143, the management unit 133 outputs an independent management enable signal to each of the third drive terminals 143 except for the third drive terminal 143 corresponding to the management unit 133. The enable signal connected to the third drive terminal 143 corresponding to the management unit 133 is an independent voltage enable signal, wherein the voltage enable signal is transmitted through one of the first enable interface 111 and the second enable interface 121.

[0096] like Figure 6 As shown, during reverse power supply, the third drive terminal 143 of the protection module 14 in the power supply circuit where the management unit 133 is located receives a voltage enable signal. This voltage enable signal is connected to this third drive terminal 143 through the second enable interface 121. Except for the third drive terminal 143 of the protection module 14 where the management unit 133 is located, which receives a voltage enable signal through the second enable interface 121, all other management enable signals connected to the third drive terminals 143 of the protection modules 14 are output by the management unit 133.

[0097] like Figure 6 As shown, the two computing and storage modules 13 correspond to two power supply circuits, and each power supply circuit is equipped with a protection module 14. One of the two computing and storage modules 13 is equipped with a parallel computing unit 131, a storage unit 132, and a management unit 133, while the other computing and storage module 13 is equipped with a parallel computing unit 131 and a storage unit 132. Based on this embodiment, the third drive terminal 143 of the protection module 14 where the computing and storage module 13 equipped with the management unit 133 is located is connected to a voltage enable signal. The management unit 133 is equipped with an enable output terminal, which is connected to the third drive terminal 143 of the other protection module 14, and the management unit 133 outputs a management enable signal.

[0098] In an optional embodiment, such as Figure 6As shown, the management unit 133 includes a baseboard management controller 1331 and a programmable logic device 1332 connected in parallel. The first end of the programmable logic device 1332 and the first end of the baseboard management controller 1331, which is also the end connected to the second drive end 142 of the protection module 14, serve as the first end of the computing and storage module 13.

[0099] In this embodiment, the baseboard management controller 1331 is used to output a management enable signal. When powered on, the power board 20 is located on the left side of the main board 10 and is connected through the first connector 11. The protection module 14 where the management unit 133 is located is connected to a high-level voltage enable signal through the first enable interface 111 of the first connector 11. Another protection module 14 is connected to the high-level management enable signal output by the management unit 133, so that the power supply circuits where the two protection modules 14 are located are connected respectively. This enables the power supply circuit corresponding to each protection module 14 to supply power to its associated computing storage module 13 through the second path and to supply power to the load through the third path.

[0100] When power is supplied in reverse, such as Figure 6 As shown, the power board 20 is connected to the motherboard 10 via the second connector 12. The power board 20 is located on the right side of the motherboard 10. The voltage enable signal of the protection module 14, where the management unit 133 is located, is normally low through the second enable interface 121 of the second connector 12. Therefore, the protection module 14, where the management unit 133 is located, disconnects the first drive terminal 141 and the second drive terminal 142. Furthermore, another protection module 14 receives a low-level management enable signal output by the management unit 133. Therefore, the management enable signal received by the third drive terminal 143 of the other protection module 14 also disconnects the first drive terminal 141 and the second drive terminal 142 of that protection module 14. At this time, the motherboard 10 acts as a powered device, and the power supply circuit corresponding to each protection module 14 supplies power to its associated computing and storage module 13 through the first path, no longer supplying power to the load board to avoid damage to the motherboard 10.

[0101] Therefore, in this embodiment, the management unit 133 realizes centralized control of multiple protection modules 14. By designing the driving timing of the protection modules 14, and utilizing the reverse cutoff characteristics of the body diodes of the two protection modules 14, the body diodes of the two protection modules 14 will not have a large current flowing through them, and the motherboard 10 will not be burned out under reverse power supply.

[0102] In an optional embodiment, the first drive terminals 141 of all protection modules 14 are connected to the first voltage interface 112 of the same first connector 11. In this embodiment, as... Figure 6As shown, the first drive terminals 141 of the two protection modules 14 are both connected to the same first voltage interface 112 of the first connector 11. Sharing the first voltage interface 112 can simplify the number of interfaces of the first connector 11, reduce connector cost and motherboard 10 wiring complexity, and improve hardware design efficiency and production yield.

[0103] In an optional embodiment, such as Figure 7 As shown, the server also includes a first load board 31.

[0104] The power board 20 is connected to the first connector 11. The power board 20 is connected to the first connector 11 through the voltage output terminal 21. The load board is connected to the second connector 12. The third path flows from the voltage output terminal 21 through the first drive terminal 141, the second drive terminal 142, the second connector 12 and the first load board 31.

[0105] This embodiment adds a first load board 31. The power board 20 is connected to the first connector 11, and the first load board 31 is connected to the second connector 12. The motherboard 10 serves as the secondary power supply, with a forward power supply path and a third power supply path. The power supply current of the load board is obtained from the second driver terminal 142 through the second connector 12, enabling the motherboard 10 to support power supply to external expansion devices, expanding the server's ability to connect graphics cards and network cards, and improving the server's versatility and scenario adaptability. Furthermore, the power supply path of the first load board 31 is included in the protection scope of the protection module 14, preventing load board failures from spreading to the core components of the motherboard 10, ensuring the dual safety of the motherboard 10 and the load board, and reducing equipment maintenance costs.

[0106] In an optional embodiment, such as Figure 8 As shown, the first connector 11 also includes a first level interface 113, and the second connector 12 also includes a second level interface 123.

[0107] like Figure 8 As shown, the protection module 14 includes a first protection unit 14A and a second protection unit 14B connected in parallel with opposite conduction paths;

[0108] The first protection unit 14A includes a first sub-driving terminal 1411, a second sub-driving terminal 1412 and a third sub-driving terminal 1413. For example, in this embodiment, the first sub-driving terminal 1411 is the source S, the second sub-driving terminal 1412 is the drain D and the third sub-driving terminal 1413 is the gate G.

[0109] The second protection unit 14B includes a fourth sub-driving terminal 1414, a fifth sub-driving terminal 1415, and a sixth sub-driving terminal 1416. For example, in this embodiment, the fourth sub-driving terminal 1414 is the drain D, the fifth sub-driving terminal 1415 is the source S, and the sixth sub-driving terminal is the gate G.

[0110] Both the first sub-driving end 1411 and the fourth sub-driving end 1414 serve as the first driving end 141, and the polarity of the first sub-driving end 1411 is opposite to that of the fourth sub-driving end 1414.

[0111] The second sub-driving end 1412 and the fifth sub-driving end 1415 both serve as the second driving end 142, and the polarity of the second sub-driving end 1412 is opposite to that of the fifth sub-driving end 1415.

[0112] Both the third sub-driving terminal 1413 and the sixth sub-driving terminal 1416 serve as the third driving terminal 143; the arithmetic storage module 13 is used to obtain the first level signal from the first connector 11 side through the first level interface 113, obtain the second level signal from the second connector 12 side through the second level interface 123, determine the connector connected to the voltage output terminal 21 based on the first level signal and the second level signal, and generate a first enable signal output to the third sub-driving terminal 1413 and a second enable signal output to the sixth sub-driving terminal 1416 based on the determination result.

[0113] The first protection unit 14A is used to enable or disable the connection between the first sub-drive terminal 1411 and the second sub-drive terminal 1412 according to the first enable signal.

[0114] The second protection unit 14B is used to disconnect or connect the fourth sub-drive terminal 1414 and the fifth sub-drive terminal 1415 according to the second enable signal.

[0115] This embodiment proposes a design scheme for implementing bidirectional power supply using a dual protection unit in protection module 14.

[0116] like Figure 8 As shown, the first side of the motherboard 10 is provided with a first connector 11 and a first voltage level interface 113, and the second side is provided with a second connector 12 and a second voltage level interface 123. The first connector 11 is used to provide power supply between the power board 20 on the first side and the motherboard 10, and the first voltage level interface 113 is used to detect the voltage on one side of the first connector 11; the second connector 12 is used to provide power supply between the power board 20 on the second side and the motherboard 10, and the second voltage level interface 123 is used to detect the voltage on one side of the second connector 12. The first voltage level interface 113 and the second voltage level interface 123 are used to determine which side of the motherboard 10 the power board 20 is located on.

[0117] In this embodiment, the protection module 14 includes a first protection unit 14A connected in parallel. The conduction direction of the first protection unit 14A is from the second sub-driving end 1412 to the first sub-driving end 1411, that is, from the second side to the first side. The conduction direction of the second protection unit 14B is from the fourth sub-driving end 1414 to the fifth sub-driving end 1415, that is, from the first side to the second side. The first sub-driving end 1411 and the fourth sub-driving end 1414 are combined to form the first driving end 141 of the protection module 14. The second sub-driving end 1412 and the fifth sub-driving end 1415 are combined to form the second driving end 142 of the protection module 14. The third sub-driving end 1413 and the sixth sub-driving end 1416 are combined to form the third driving end 143.

[0118] In this embodiment, the opposite conduction paths of the first protection unit 14A and the second protection unit 14B mean that if both enable signals are high-level enable signals, if the first protection unit 14A is turned on, the second protection unit 14B is turned off. Similarly, if the first protection unit 14A is turned off, the second protection unit 14B is turned on. Therefore, in response to the same enable signal, the states of the first protection unit 14A and the second protection unit 14B are opposite. Based on this setting, the protection module 14 has both bidirectional conduction function and bidirectional protection function.

[0119] In this embodiment, the computational storage module 13 obtains voltage signals from both sides through the first level interface 113 and the second level interface 123 respectively and determines the power supply direction. For example, if the power board 20 is located on the left side of the motherboard 10 and is connected to the motherboard 10 through the first connector 11, and the voltage signal on the left side is 12V and the voltage signal on the right side is 0V, then the first level signal of the first level interface 113 is greater than the second level signal of the second level interface 123, that is, the power supply direction is positive. Based on the judgment that the power supply direction is positive, a first enable signal is output to the third sub-drive terminal 1413 of the first protection unit 14A to connect the second sub-drive terminal 1412 and the first sub-drive terminal 1411, and a second enable signal is output to the sixth sub-drive terminal 1416 of the second protection unit 14B to disconnect the fourth sub-drive terminal 1414 and the fifth sub-drive terminal 1415, so that the current passes through the first protection unit 14A and the second protection unit 14B is in an open state and not conducting.

[0120] Based on this setup, the protection module 14 features a dual protection unit design with different conduction reverses, and a design for level detection via the motherboard 10 level interface. This enables automatic identification of the power supply direction and adaptive switching of the protection unit, ensuring normal current transmission while disconnecting the circuit in case of an abnormality. This comprehensively covers the protection requirements for bidirectional power supply and improves circuit safety.

[0121] In an optional embodiment, such as Figure 8As shown, at least one of the multiple computing and storage modules 13 includes a computing unit 131, a storage unit 132, and a management unit 133 connected in parallel.

[0122] The computing unit 131, the storage unit 132 and the management unit 133 are all connected to one end of the second driving end 142 as the first end of the computing and storage module 13;

[0123] The management unit 133 includes a board management controller 1331 and a programmable logic device 1332 connected in parallel.

[0124] The first terminal of the substrate management controller 1331 is connected to the first level interface 113 and the second level interface 123 respectively;

[0125] The first terminal of the programmable logic device 1332 is connected to the third sub-driving terminal 1413 of the first protection unit 14A and the sixth sub-driving terminal 1416 of the second protection unit 14B, respectively. The first terminal of the baseboard management controller 1331 is connected to the first terminal of the programmable logic device 1332.

[0126] In this embodiment, the substrate management controller 1331 is used to acquire a first level signal and a second level signal, determine the power supply direction based on the first level signal and the second level signal, and generate a determination result;

[0127] When the judgment result is that the power supply is in the direction of the first path, a first enable signal is generated to turn on the first protection unit 14A, and a second enable signal is generated to turn off the second protection unit 14B. The conduction direction of the first protection unit 14A is from the second sub-drive terminal 1412 to the first sub-drive terminal 1411.

[0128] When the judgment result is that the power supply is in the direction of the second path, a first enable signal is generated to disconnect the first protection unit 14A, and a second enable signal is generated to turn on the second protection unit 14B. The conduction direction of the second protection unit 14B is from the fourth sub-drive terminal 1414 to the fifth sub-drive terminal 1415.

[0129] In this embodiment, the management unit 133 of the computing and storage module 13 includes a baseboard management controller 1331 (BMC) and a programmable logic device (CPLD) 1332 connected in parallel. The baseboard management controller 1331 is connected to a first level interface 113 and a second level interface 123 via an I2C bus to acquire the level signals on both sides, determine the power supply direction, and transmit the result to the programmable logic device 1332 via the I2C bus. The programmable logic device 1332 is connected to the third sub-driver terminal 1413 of the first protection unit 14A and the sixth sub-driver terminal 1416 of the second protection unit 14B.

[0130] Taking the first path of reverse power supply application as an example, the computing and storage module 13 obtains the voltage signals on both sides through the first level interface 113 and the second level interface 123 respectively and determines the power supply direction. If the power board 20 is located on the right side of the motherboard 10, and the power board 20 is connected to the motherboard 10 through the second connector 12, the voltage signal on the right side is 12V and the voltage signal on the left side is 0V. Then the second level signal of the second level interface 123 is greater than the first level signal of the first level interface 113, that is, the power supply direction is reversed.

[0131] Based on the judgment that the power supply direction is reverse, the programmable logic device 1332 outputs a first enable signal to the third sub-drive terminal 1413 of the first protection unit 14A to disconnect the second sub-drive terminal 1412 and the first sub-drive terminal 1411. The sixth sub-drive terminal 1416 of the second protection unit 14B outputs a second enable signal to connect the fourth sub-drive terminal 1414 and the fifth sub-drive terminal 1415, so that the current passes through the second protection unit 14B and the first protection unit 14A is in the open state and does not conduct, thus performing reverse power supply through the first path.

[0132] In this embodiment, the baseboard management controller 1331 and the programmable logic device 1332 work together. The baseboard management controller 1331 is responsible for complex level signal analysis and direction determination, while the programmable logic device 1332 is responsible for fast enable signal output. Based on bidirectional power supply, the response speed is optimized to avoid motherboard 10 failure due to judgment delay or control lag, and the circuit reliability is greatly improved.

[0133] In an optional embodiment, such as Figure 9 As shown, the server also includes a management board 40, which in turn includes a power supply unit. The power supply unit supplies power to the management units 133 in all the computing and storage modules 13. All the management units 133 in all the computing and storage modules 13 are located on the management board 40.

[0134] When there are multiple computing and storage modules 13 and multiple independent power supply circuits are required, such as Figure 9 As shown, this embodiment adds a separately designed management board 40, and moves the management unit 133 of the computing storage module 13 to the management board 40. The computing storage module 13 on the motherboard 10 only retains the computing unit 131 and the memory unit 132. The power supply unit supplies power to the management unit 133 of the computing storage module 13 on the management board 40 through wires, for example, for... Figure 9 The baseboard management controller 1331 and programmable logic controller 1332 are powered. The management board 40 is connected to the motherboard 10 through a board-to-board connector to realize the signal connection between the management unit 133 and the first level interface 113, the second level interface 123, the third sub-driver terminal 1413 and the sixth sub-driver terminal 1416 on the motherboard 10.

[0135] The functions of the baseboard management controller 1331 and programmable logic device 1332 located on the management board 40 are as follows: Figure 8 The same and related aspects of the illustrated embodiment can be referred to. This embodiment is applicable to scenarios where the motherboard has multiple power supply circuits for the computing and storage modules. Based on this setting, the management unit 133 is centrally deployed on the management board 40, realizing a modular design of power supply and control functions, reducing the complexity of the motherboard 10, reducing the wiring of the baseboard management controller 1331 and programmable logic device 1332 on the motherboard 10, facilitating the independent development of the motherboard 10 and the management board 40. The management board 40 is independent of the motherboard 10 and can be disassembled and replaced separately, shortening the product development cycle and maintenance time.

[0136] In an optional embodiment, the server further includes a second load balancer 32.

[0137] When the power board 20 is connected to the first connector 11, the second load board 32 is connected to the second connector 12.

[0138] The third path flows from the voltage output terminal 21 through the first drive terminal 141, the second drive terminal 142, the second connector 12, and the second load board 32;

[0139] When the power board 20 is connected to the second connector 12, such as Figure 10 As shown, the second load board 32 is connected to the first connector 11.

[0140] The first path flows from the voltage output terminal 21 through the second connector 12 and the computing and storage module 13.

[0141] The power supply circuit includes a fourth path, which flows from the voltage output terminal 21 through the second connector 12, the second drive terminal 142, the first drive terminal 141, the first connector 11, and the second load board 32.

[0142] This embodiment adds a second load board 32. The motherboard 10 can act as a power supply terminal to supply power to the second load board 32. Based on the design of dual protection units, the second load board 32 can be set on both sides of the motherboard 10 and adaptively conduct according to the power supply direction. This breaks the limitation of the traditional motherboard 10 only supplying power to the load device in the forward direction, so that the motherboard 10 can expand the external load in both bidirectional power supply modes, which greatly improves the functional adaptability and scenario coverage of the motherboard 10. For example, when the power supply is reversed, peripherals such as printers and scanners can be connected, which improves the overall cost performance of the server.

[0143] It is worth noting that, in order to distinguish different interfaces, this application identifies the first enable interface 111 and the second enable interface 121 as PWREN, the first voltage interface 112 and the second voltage interface 122 as PWR, the ground interface as GND, the source as S, the drain as D, and the gate as G, in order to simplify the interfaces of the various embodiments of this application.

[0144] Another embodiment of this application provides a server, which includes the power supply circuit of the above embodiments of this application. An embodiment of this application provides a power supply method applied to the power supply circuit of the above embodiments, the power supply method including:

[0145] Connect the voltage output terminal 21 of the power board 20 to one of the first connector 11 and the second connector 12;

[0146] Voltage output terminal 21 outputs a voltage signal;

[0147] An enable signal is input to the third drive terminal 143 of the protection module 14 to connect or disconnect the connection between the first drive terminal 141 and the second drive terminal 142 of the protection module 14.

[0148] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method.

[0149] Embodiments of this application also provide an electronic device, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps described in the power supply method embodiments above.

[0150] Embodiments of this application also provide a computer-readable storage medium storing a computer program configured to execute the steps described in the above power supply method embodiments when running.

[0151] In one exemplary embodiment, the aforementioned computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk, magnetic disk, or optical disk.

[0152] Embodiments of this application also provide a computer program product, which includes a computer program that, when executed by a processor, implements the steps in the above-described power supply method embodiments.

[0153] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0154] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only intended to help understand the methods and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A power supply circuit, applied to a server, characterized in that, The server includes a motherboard and a power supply board. The motherboard includes: At least one first connector located on the first side of the motherboard; At least one second connector located on the second side opposite to the first side; and A computing and storage module, wherein a first end of the computing and storage module is connected to the second connector; The protection module includes a first driving terminal, a second driving terminal, and a third driving terminal. The first driving terminal is connected to the first connector, the second driving terminal is connected to the second connector and the first end of the computing and storage module, and the third driving terminal is used to turn on or off the connection between the first driving terminal and the second driving terminal according to the accessed enable signal. The power board includes a voltage output terminal, which is connected to one of the first connector and the second connector; The first connector further includes a first level interface, and the second connector further includes a second level interface; The protection module includes a first protection unit and a second protection unit connected in parallel with opposite conduction paths; The computing and storage module obtains the voltage signals from both sides through the first level interface and the second level interface respectively, and determines the power supply direction. When current flows from the first connector to the second connector, the first protection unit is turned on and the second protection unit is turned off. When current flows from the second connector to the first connector, the second protection unit is turned on, and the first protection unit is turned off.

2. The power supply circuit according to claim 1, characterized in that, When the voltage output terminal is connected to the second connector, the second driving terminal receives the voltage signal from the voltage output terminal, and the third driving terminal disconnects the connection between the first driving terminal and the second driving terminal according to the enable signal. The power supply circuit includes a first path, which flows from the voltage output terminal through the second connector and the computing and storage module.

3. The power supply circuit according to claim 2, characterized in that, When the voltage output terminal is connected to the first connector, the first driving terminal receives the voltage signal from the voltage output terminal, and the third driving terminal activates the connection between the first driving terminal and the second driving terminal according to the enable signal. The power supply circuit path also includes: A second path, the second path flowing from the voltage output terminal through the first driving terminal, the second driving terminal, and the computation and storage module; and The third path flows from the voltage output terminal through the first drive terminal, the second drive terminal, and the second connector.

4. The power supply circuit according to claim 3, characterized in that, The motherboard includes at least two computing and storage modules connected in parallel. The second connector includes a second voltage interface, the same number as the computing and storage modules. The second voltage interface corresponds one-to-one with the computing and storage module, and the second voltage interface is connected to the first end of the computing and storage module; The number of protection modules is the same as the number of computing and storage modules. The protection module corresponds one-to-one with the computing and storage module. The second driving terminal is connected to the first terminal of the computing and storage module and to the second voltage interface; Each of the protection modules has its third drive terminal independently connected to the enable signal.

5. The power supply circuit according to claim 4, characterized in that, The first connector includes the same number of first voltage interfaces as the protection modules. The first voltage interface corresponds one-to-one with the protection module. The first voltage interface is connected to the first drive terminal of the protection module.

6. The power supply circuit according to claim 4, characterized in that, At least one of the plurality of computing and storage modules includes a computing unit, a storage unit, and a management unit connected in parallel. The end of the computing unit, the storage unit, and the management unit connected to the second driving terminal serves as the first terminal of the computing and storage module. The first connector includes the same number of first voltage interfaces as the management units. The first voltage interface corresponds one-to-one with the protection module of the circuit where the management unit is located. When the voltage output terminal is connected to the first voltage interface, the first voltage interface connected to the management unit outputs a voltage enable signal to the third drive terminal of the circuit where the management unit is located; when the voltage output terminal is connected to the second voltage interface, the second voltage interface connected to the management unit outputs a voltage enable signal to the third drive terminal of the circuit where the management unit is located. The management unit includes at least one enable output terminal, and each enable output terminal corresponds one-to-one with the circuit containing the protection module connected in parallel with the management unit. The management unit outputs independent management enable signals to the third drive terminal through the enable output terminal.

7. The power supply circuit according to claim 6, characterized in that, All of the protection modules have their first drive terminals connected to the first voltage interface of the same first connector.

8. The power supply circuit according to any one of claims 3-7, characterized in that, The server also includes a first load balancer. The power board is connected to the first connector, and the power board is connected to the first connector via the voltage output terminal. The load board is connected to the second connector. The third path flows from the voltage output terminal through the first drive terminal, the second drive terminal, the second connector, and the first load board.

9. The power supply circuit according to claim 4, characterized in that, The first protection unit includes a first sub-drive terminal, a second sub-drive terminal, and a third sub-drive terminal; The second protection unit includes a fourth sub-drive terminal, a fifth sub-drive terminal, and a sixth sub-drive terminal; Both the first sub-driver terminal and the fourth sub-driver terminal serve as the first driver terminal; Both the second sub-driving terminal and the fifth sub-driving terminal serve as the second driving terminal; Both the third sub-driving end and the sixth sub-driving end serve as the third driving end; The computing and storage module is used to obtain a first level signal from the first connector side through the first level interface, obtain a second level signal from the second connector side through the second level interface, determine the connector connected to the voltage output terminal based on the first level signal and the second level signal, and generate a first enable signal output to the third sub-driver terminal and a second enable signal output to the sixth sub-driver terminal based on the determination result. The first protection unit is used to enable or disable the connection between the first sub-driver terminal and the second sub-driver terminal based on the first enable signal. The second protection unit is used to disconnect or connect the fourth sub-driver terminal and the fifth sub-driver terminal according to the second enable signal.

10. The power supply circuit according to claim 9, characterized in that, At least one of the plurality of computing and storage modules includes a computing unit, a storage unit, and a management unit connected in parallel. The computing unit, the storage unit, and the management unit are all connected to one end of the second driving terminal as the first end of the computing storage module; The management unit includes a baseboard management controller and a programmable logic device connected in parallel. The first terminal of the substrate management controller is connected to the first level interface and the second level interface respectively; The first terminal of the programmable logic unit is connected to the third sub-driver terminal of the first protection unit and the sixth sub-driver terminal of the second protection unit, respectively. The first terminal of the baseboard management controller is connected to the first terminal of the programmable logic device. The baseboard management controller is used to acquire the first level signal and the second level signal, determine the power supply direction based on the first level signal and the second level signal, and generate a determination result; When the judgment result is that power is supplied in the direction of the first path, the first enable signal is generated to turn on the first protection unit, and the second enable signal is generated to turn off the second protection unit. The conduction direction of the first protection unit is from the second sub-drive end to the first sub-drive end. When the judgment result is that power is supplied in the direction of the second path, the first enable signal is generated to disconnect the first protection unit, and the second enable signal is generated to turn on the second protection unit. The conduction direction of the second protection unit is from the fourth sub-drive terminal to the fifth sub-drive terminal.

11. The power supply circuit according to claim 10, characterized in that, The server also includes a management board, which further includes a power supply unit that supplies power to all the management units in the computing and storage modules. All the management units in the computing and storage modules are located on the management board.

12. The power supply circuit according to any one of claims 9-11, characterized in that, The server also includes a second load balancer. When the power board is connected to the first connector, the second load board is connected to the second connector. The third path flows from the voltage output terminal through the first drive terminal, the second drive terminal, the second connector, and the second load board; When the power board is connected to the second connector, the second load board is connected to the first connector. The first path flows from the voltage output terminal through the second connector and the computing and storage module. The power supply circuit also includes a fourth path, which flows from the voltage output terminal through the second connector, the second driving terminal, the first driving terminal, the first connector, and the second load board.

13. A server, characterized in that, The server includes the power supply circuit according to any one of claims 1-12.

14. A power supply method, characterized in that, The power supply method, applied to the power supply circuit of any one of claims 1-12, comprises: Connect the voltage output terminal of the power board to one of the first connector and the second connector; The voltage output terminal outputs a voltage signal; An enable signal is input to the third drive terminal of the protection module to connect or disconnect the connection between the first drive terminal and the second drive terminal of the protection module.

15. An electronic device comprising a memory and a processor, the memory storing a computer program, the processor being configured to run the computer program to perform the steps of the power supply method as claimed in claim 14.

16. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the power supply method as described in claim 14.

17. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the power supply method as described in claim 14.

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