Power supply and power supply system

Abstract

The invention discloses a power supply and a power supply system, and relates to the technical field of power supply, and the power supply is characterized in that an AC-to-DC module and a DC-to-DC module are decoupled, and the DC-to-DC module can multiplex the output end of the AC-to-DC module; compared with the scheme of one-to-one current transmission of the AC-to-DC modules and the DC-to-DC modules in the design of coupling of the AC-to-DC modules and the DC-to-DC modules, the number of the AC-to-DC modules can be effectively reduced, so that the problem of high cost of the power supply is solved, and the cost of the power supply can be reduced on the premise of providing stable power supply.

Description

Technical Field

[0001] This application relates to the field of power supply technologies, and particularly to power supplies and power supply systems. Background Art

[0002] A power supply is set in a device to provide stable power supply to the device so that the device can operate normally. The power supply receives mains input, converts the mains into direct current corresponding to the rated voltage according to the rated voltage of the load in the device, and stabilizes the output of the direct current so that the load in the device can operate normally.

[0003] In related technologies, power supply is achieved through multiple power supply units in the power supply, and the multiple power supply units are redundantly designed to improve the stability of power supply. However, a relatively large number of power supply units are required to implement the redundant design, resulting in a high cost of the power supply. Summary of the Invention

[0004] This application provides a power supply and a power supply system to at least solve the problem of high cost of the power supply in related technologies.

[0005] This application provides a power supply, including: multiple groups of power supply interfaces, an input conversion component, an AC-DC module group, multiple groups of DC-DC modules, and a first power supply board. Among them, the input conversion component is connected to the power supply interfaces and the input end of the AC-DC module group, and the input conversion component is used to realize the connection switching between the AC-DC module group and the power supply interfaces; the output end of the AC-DC module group is connected to the input end of the DC-DC module, and the AC-DC module group is used to convert alternating current into direct current adapted to the DC-DC module; the output end of the DC-DC module is connected to the first power supply board, and the DC-DC module is used to output direct current with a corresponding voltage through the first power supply board.

[0006] This application also provides a power supply system, including: a load and a power supply. Among them, the output end of the power supply is connected to the input end of the load, and the power supply is used to supply power to the load; the heat dissipation channels of the DC-DC modules of the power supply at least partially overlap with the heat dissipation channels of the load.

[0007] Through this application, the AC-DC module and the DC-DC module are decoupled, and the DC-DC module can reuse the output end of the AC-DC module. Compared with the scheme in which the AC-DC module and the DC-DC module transmit current one-to-one in the coupled design of the AC-DC module and the DC-DC module, the number of AC-DC modules can be effectively reduced, thereby solving the problem of high cost of the power supply and reducing the cost of the power supply on the premise of providing stable power supply. Description of the Drawings

[0008] To more clearly illustrate the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0009] Figure 1 Schematic diagram of the application scenario of the power supply provided by the embodiment of the present application;

[0010] Figure 2 Schematic diagram of the stacked arrangement of the power supply units;

[0011] Figure 3 Schematic diagram of module coupling;

[0012] Figure 4 Schematic diagram of the structure of the power supply provided by the embodiment of the present application;

[0013] Figure 5 Schematic diagram of the structure of the relay provided by the embodiment of the present application;

[0014] Figure 6 Schematic diagram of the structure of the second power supply board provided by the embodiment of the present application;

[0015] Figure 7 Schematic diagram of the structure of the first indication module provided by the embodiment of the present application;

[0016] Figure 8 Schematic diagram of the field effect transistor provided by the embodiment of the present application;

[0017] Figure 9 Schematic diagram of the structure of the power supply provided by the embodiment of the present application;

[0018] Figure 10 Schematic diagram of the structure of the connector provided by the embodiment of the present application;

[0019] Figure 11 Schematic diagram of the structure of the power supply system provided by the embodiment of the present application. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0021] It should be noted that in the description of this application, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. The terms "first", "second", etc. in this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0022] It should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. The terms "parallel", "perpendicular", "equal" include the described situations and situations similar to the described situations, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurements being discussed and the errors associated with the measurements of specific quantities (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, where the acceptable deviation range of approximate parallel can be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, where the acceptable deviation range of approximate perpendicular can also be, for example, within 5° deviation. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range of approximate equality can be, for example, that the difference between the two equal ones is less than or equal to 5% of either one. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

[0023] In order to enable those skilled in the art of this technology to better understand the solution of this application, the following further describes this application in detail with reference to the drawings and specific embodiments.

[0024] Combined with the specific application environment architecture or specific hardware architecture on which the execution of the power supply depends, the specific application environment architecture or specific hardware architecture is described herein. Refer to Figure 1 , Figure 1Schematic diagram of the application scenario of a power supply. The power supply and the load are installed in a device. The load is used to implement specific functions, such as computing, communication, or storage, etc. The power supply is used to supply power to the load. The power supply converts the externally input alternating current (AC) into direct current (DC) adapted to the load, and supplies power to the load through the DC adapted to the load.

[0025] Optionally, the device can be a cabinet server, a computing device, a switching device, or a storage device, etc. Among them, the cabinet server can include multiple computing nodes, switching nodes, or storage nodes that work together.

[0026] In the related art, the power supply internally includes multiple power supply lines. Each power supply line corresponds to an input current. Each power supply line includes multiple power supply units (PSUs). Each power supply unit integrates an AC-DC module and a DC-DC module. The multiple power supply units are arranged in parallel according to a redundant design. When one of the power supply units or one of the power supply lines fails, the other power supply units adjust the power supply parameters to achieve stable power supply to the load by the power supply. However, the AC-DC module and the DC-DC module integrated in each power supply unit are coupled, and the multiple power supply units are isolated from each other. To achieve the redundant design, a relatively large number of power supply units need to be stacked, resulting in a large overall volume of the power supply and a high material cost for producing the power supply.

[0027] Next, Figure 2 an explanation of the stacked arrangement of the power supply units will be given.

[0028] Figure 2 Schematic diagram of the stacked arrangement of the power supply units. As Figure 2As shown, for example, the power supply includes 10 power supply units with a maximum power of 3200W each, and the 10 power supply units supply power to a load with a full-load power of 16KW. The 10 power supply units form two power supply lines. Both line A and line B receive 220V alternating current input from the outside. Line A includes PSU1 - 5, and line B includes PSU6 - 10. The 10 power supply units output 54V direct current and 12V direct current, which are respectively adapted to different components on the load. Through PSU1 - 4 and PSU6 - 9, a 4 + 4 (i.e., 4 power supply units + 4 power supply units) redundant design is implemented to convert 220V alternating current into 54V direct current. If any one of the power supply units in PSU1 - 4 and PSU6 - 9 fails, the power supply parameters of at least one of the other 7 power supply units are adjusted to achieve a stable output of 54V direct current. If a failure in line A makes PSU1 - 4 unavailable, the power supply parameters of the power supply units in PSU6 - 9 are adjusted to achieve a stable output of 54V direct current. The redundant design for the output of 12V direct current is the same. Through this redundant design, even if one of line A and line B fails, the full-load operation of the 5 power supply units on the other line can still supply power to a load with a full-load power of 16KW. It can be seen that in the related art, to supply power to a load with a full-load power of 16KW, 10 power supply units with a total power of 32KW are required for redundant power supply, resulting in a large number of power supply units, low efficiency of the power supply, and high power supply cost.

[0029] Next, the module coupling will be described in conjunction with Figure 3 the following.

[0030] Figure 3 FIG. is a schematic diagram of the module coupling provided by an embodiment of the present application. As Figure 3 shown, each power supply unit includes an AC - DC module (AC - to - DC) and a DC - DC module (DC - to - DC). The AC - DC module converts the alternating current input to the power supply unit into direct current. For example, it converts 220V alternating current into 400V direct current. The DC - DC module converts the direct current into direct current with a preset voltage, such as 54V or 12V, and 54V and 12V are respectively adapted to different components.

[0031] Combined with the scenario example, in the related art, referring to Figure 3 , the AC - DC module and the DC - DC module inside the power supply unit are coupled, that is, the AC - DC module and the DC - DC module can only transfer current one - to - one, so a relatively large number of AC - DC modules are used.

[0032] By decoupling the AC-DC module and the DC-DC module in this application, the DC-DC module can reuse the AC-DC module, eliminating the need to set up the same number of AC-DC modules as the DC-DC modules, thereby reducing the number of AC-DC modules and further lowering the cost of the power supply.

[0033] Figure 4 FIG. is a schematic structural diagram of the power supply provided by an embodiment of this application, as Figure 4 shown. The power supply includes: multiple groups of power supply interfaces, an input conversion component, an AC-DC module group, multiple groups of DC-DC modules, and a first power supply board. Among them,

[0034] The input conversion component is connected to the power supply interface and the input end of the AC-DC module group. The input conversion component is used to realize the connection switching between the AC-DC module group and the power supply interface.

[0035] The output end of the AC-DC module group is connected to the input end of the DC-DC module. The AC-DC module group is used to convert alternating current into direct current suitable for the DC-DC module.

[0036] The output end of the DC-DC module is connected to the first power supply board. The DC-DC module is used to output direct current with a corresponding voltage through the first power supply board.

[0037] Among them, the AC-DC module group includes multiple AC-DC modules, and each group of DC-DC modules includes multiple DC-DC modules.

[0038] Exemplarily, referring to Figure 4 , the power supply interfaces a1-a5 form the power supply interface group A, and the power supply interfaces b1-b5 form the power supply interface group B. The power supply interfaces are used to receive externally input alternating current, such as 220V alternating current. One of the power supply interface groups A and B operates, and the other power supply interface group serves as a backup and is switched when a failure occurs. The power supply interface groups A and B respectively correspond to a power supply circuit.

[0039] Optionally, the alternating current received by each group of power supply interfaces is from the same source.

[0040] Combined with the scenario example, the power supply interface groups A and B receive power from the same source. When any one of the power supply interface groups A and B fails to receive the input current, it switches to the other power supply interface group to operate to achieve continuous operation of the power supply.

[0041] Optionally, the alternating current received by each group of power supply interfaces is from different sources.

[0042] Illustrated with a scenario example, power supply interface group A receives alternating current from source A, and power supply interface group B receives alternating current from source B. If power supply interface group A is currently operating and source A fails and cannot supply power to the power supply normally, it switches to power supply interface group B for operation. At this time, source B supplies power to the power supply to achieve continuous operation of the power supply. If power supply interface group A is currently operating and power supply interface group A fails and cannot receive input current normally, it switches to power supply interface group B for operation. At this time, the current input from source B is received through power supply interface group A to achieve continuous operation of the power supply.

[0043] Based on the above embodiments, when the alternating current received by each power supply interface is from a different source, when one of the power supply interface groups fails or one of the power supply sources fails, the power supply can be ensured to operate normally by switching the power supply interface group, thereby improving the stability of the power supply.

[0044] Exemplarily, the switching of the power supply interface is performed by an input conversion component. Specifically, the input conversion component is connected to each power supply interface, and the input conversion component is connected to the input end of the AC-DC conversion module. The power supply interface is not directly connected to the AC-DC conversion module. The input conversion component realizes the connection switching between the AC-DC conversion module and the power supply interface by controlling the on / off between the power supply interface and the AC-DC conversion module.

[0045] In the related art, each AC-DC conversion module is connected to a fixed power supply interface, and each power supply interface is connected to a fixed power supply source. When the power supply interface fails and / or the power supply source fails, even if the AC-DC conversion module is not faulty, since it cannot supply power to the power supply, the AC-DC conversion module cannot work properly. On this basis, in the related art, more power supply interfaces are added to cope with possible failures of the power supply interface and / or the power supply source. Each power supply interface corresponds to a power supply unit. Increasing the power supply interface means increasing the power supply unit, and increasing more power supply units means that the number of AC-DC conversion modules increases accordingly, which in turn leads to the problem of high power supply cost.

[0046] Illustrated with a scenario example, in the present application, an input conversion component is provided. When the power supply interface and / or the power supply source fails, the input conversion component switches the AC-DC conversion module to establish a connection with other power supply interfaces to cope with the failure, and it is not necessary to increase a large number of AC-DC conversion modules according to the number of power supply interfaces, thereby reducing the cost of the power supply.

[0047] Exemplarily, the output end of the AC-DC conversion module group is used to output direct current, and the input end of the DC-DC conversion module is used to receive direct current.

[0048] Exemplarily, the direct current output by the output end of the AC-DC module group is the direct current obtained by the collaborative conversion of multiple AC-DC modules in the AC-DC module group. The AC-DC module is decoupled from the DC-DC module, and each DC-DC module can use the direct current output by the AC-DC module group. When designing the number of AC-DC modules in the AC-DC module group, only the direct current adapted to the DC-DC module needs to be used as the design basis to ensure that the number of AC-DC modules is sufficient to stably generate the direct current adapted to the DC-DC module, without the need to increase the number of AC-DC modules to be the same as the number of DC-DC modules, thereby effectively reducing the number of AC-DC modules.

[0049] Illustrated with a scenario example, first convert the alternating current into high-voltage direct current through the AC-DC module group, and then convert the high-voltage direct current into low-voltage direct current (such as 54V, 12V, etc.) adapted to the load through the DC-DC module. The voltage of the high-voltage direct current should be within the parameter range that the DC-DC module can convert, so that the DC-DC module can work properly.

[0050] Exemplarily, the output end of the DC-DC module is used to output low-voltage direct current. Each group of DC-DC modules outputs direct current of the corresponding voltage. Multiple DC-DC modules in each group of DC-DC modules are redundantly designed to achieve stable output of the corresponding low-voltage direct current.

[0051] Optionally, the connection method between the DC-DC module and the first power supply board can be an integrated connection, that is, the DC-DC module is integrated on the first power supply board, and the circuit of the DC-DC module is also integrated on the first power supply board. By means of the integrated connection, the circuit can be saved, the overall volume of the power supply can be reduced, the integration degree can be improved, and thus the cost of the power supply can be reduced. On the other hand, when the DC-DC module is integrated on the first power supply board, the wiring of the first power supply board can be used to replace part of the circuit, which can shorten the current transmission path and thus reduce the current transmission loss.

[0052] Optionally, the DC-DC module is connected to the first power supply board through a circuit, which can be realized by connecting the circuit of the DC-DC module to the interface of the first power supply board. By connecting through the circuit, the difficulty of disassembly and assembly can be reduced. When the DC-DC module is damaged, it is convenient to replace the DC-DC module, and when the existing number of DC-DC modules is insufficient, it is convenient to flexibly expand the DC-DC module. On the other hand, in the way of connecting through the circuit, when the DC-DC module fails, it will not cause the first power supply board and other modules connected to the first power supply board to fail due to short circuit, thereby improving the reliability of the power supply.

[0053] A feasible implementation manner is that the AC-DC module group includes multiple parallel AC-DC modules, wherein the AC-DC modules are used for redundant power supply.

[0054] Exemplarily, the input ends of multiple AC-DC modules are connected in parallel to the input conversion component. The multiple AC-DC modules simultaneously receive the alternating current output by the input conversion component, and the multiple AC-DC modules are powered in a redundant manner with margin.

[0055] Illustrated with a scenario example, taking the N+1 power supply mode of the AC-DC module as an example for explanation. The number of AC-DC modules is N+1. When N+1 AC-DC modules work simultaneously, the actual power of each AC-DC module is less than the maximum power. The difference between the actual power and the maximum power is the margin. When one of the AC-DC modules fails, the other N AC-DC modules respectively increase the actual power until the total power of the N AC-DC modules is the same as the total power when N+1 AC-DC modules work simultaneously, and the increased actual power of each AC-DC module among the N AC-DC modules is less than or equal to the maximum power. Thus, when any one of the AC-DC modules fails, the total power of the remaining AC-DC modules remains unchanged, and the N AC-DC modules will not be damaged due to the excessively high increased actual power, thereby achieving stable power supply.

[0056] It should be noted that the N+1 redundant power supply of the present application is only taken as an implementation mode. In actual applications, the corresponding N+M redundant power supply can be adopted according to specific scenarios, where N is a positive integer and M is a positive integer. The present application does not limit the specific implementation mode of the redundant power supply.

[0057] In the related art, the AC-DC module and the DC-DC module in the power supply unit are coupled. When the AC-DC module in the power supply unit fails, due to the lack of input alternating current, the DC-DC module cannot be used either. In order to ensure the overall power supply stability of the power supply, more power supply units need to be added.

[0058] In this feasible implementation mode, by decoupling the AC-DC module and the DC-DC module, when some AC-DC modules fail, only the working parameters of other AC-DC modules need to be adjusted, without affecting the DC-DC module, thereby improving the power supply stability of the power supply.

[0059] A feasible implementation mode is that the input end of the AC-DC module is connected to the input conversion component through a field effect transistor or a relay.

[0060] Next, in combination with Figure 5 Taking the relay as an example for explanation, the implementation mode of the field effect transistor is the same by analogy.

[0061] Figure 5 This is a schematic diagram of the relay provided by the embodiment of the present application. As Figure 5As shown, the input conversion component is connected to the relay, the relay is connected to the AC-DC conversion module, and the relay also includes pins for receiving control signals. When the AC-DC conversion module is normal, the inside of the relay is in a conducting state, and the input conversion component can transmit current to the AC-DC conversion module. When the AC-DC conversion module fails, the inside of the relay can be controlled to disconnect through the control signal, and at this time, the input conversion component stops transmitting current to the AC-DC conversion module.

[0062] Exemplarily, the on-off between the input conversion component and the AC-DC conversion module can be controlled by a field effect transistor or a relay, so that when the AC-DC conversion module fails, the corresponding current transmission can be timely disconnected to avoid damaging other components on the line.

[0063] In this feasible implementation, by using a field effect transistor or a relay, damage to other components on the same line caused by a faulty AC-DC conversion module can be avoided, thereby improving the reliability of the power supply.

[0064] In a feasible implementation, the AC-DC conversion module group includes at least one standby AC-DC conversion module for standby power supply.

[0065] Exemplarily, the main AC-DC conversion module is in a working state except in case of failure. The standby AC-DC conversion module is used to convert alternating current into high-voltage direct current. The standby AC-DC conversion module is in a stopped working state and does not convert current when the main AC-DC conversion module is working normally. The standby AC-DC conversion module works only when the number of faults in the main AC-DC conversion module is greater than or equal to the number threshold to achieve stable power supply.

[0066] Taking the scenario example for illustration, taking the number threshold as 2, if the number of faults in the main AC-DC conversion module is 1, the working main AC-DC conversion module can increase its working power to work, ensuring that the total power of the main AC-DC conversion module can maintain the normal operation of the power supply, and at this time, the standby AC-DC conversion module does not work. If the number of faults in the main AC-DC conversion module is 2, even if the working main AC-DC conversion module increases its working power to the maximum power, the total power of the main AC-DC conversion module still cannot achieve the normal operation of the power supply. At this time, the standby AC-DC conversion module works so that the total power of the main AC-DC conversion module and the standby AC-DC conversion module can achieve the normal operation of the power supply, thereby achieving stable power supply.

[0067] In this feasible implementation, by setting up a standby AC-DC conversion module, a supplementary strategy for dealing with the failure of the AC-DC conversion module can be added on the basis of redundant power supply. In the scenario where redundant power supply is insufficient to cope with the failure, the normal power supply of the power supply can be achieved through the supplementary strategy, thereby further improving the reliability of the power supply.

[0068] A feasible implementation manner Figure 6 is a schematic structural diagram of the second power supply board provided by the embodiment of the present application, as Figure 6 shown. The power supply further includes a second power supply board. Among them, the AC-DC module group is connected in parallel to the second power supply board; the second power supply board is connected to the input conversion component, and the second power supply board is connected to the input ends of multiple DC-DC modules. The second power supply board is used to achieve redundant power supply for the AC-DC module group.

[0069] Exemplarily, the connection manner between multiple AC-DC modules in the AC-DC module group and the second power supply board can be integrated connection, that is, multiple AC-DC modules are integrated on the second power supply board, and the circuits of multiple AC-DC modules are also integrated on the second power supply board. At this time, multiple AC-DC modules receive current through the second power supply board, and multiple AC-DC modules output current through the second power supply board. By means of integrated connection, the circuit can be saved, the overall volume of the power supply can be reduced, the integration degree can be improved, and thus the cost of the power supply can be reduced. On the other hand, when multiple AC-DC modules are integrated on the second power supply board, the wiring of the second power supply board can be used to replace part of the circuit, which can shorten the current transmission path, thereby reducing the current transmission loss.

[0070] Optionally, multiple AC-DC modules are connected to the second power supply board through circuits, which can be realized by connecting the circuits of multiple AC-DC modules to the interfaces of the second power supply board. By connecting through circuits, the difficulty of disassembly and assembly can be reduced. When an AC-DC module is damaged, it is convenient to replace the AC-DC module. When the existing number of AC-DC modules is insufficient, it is convenient to flexibly expand the AC-DC modules. On the other hand, by means of circuit connection, when an AC-DC module fails, the second power supply board and other modules connected to the second power supply board will not fail due to short circuit, thereby improving the reliability of the power supply.

[0071] Exemplarily, the second power supply board uniformly controls multiple AC-DC modules, and according to the fault conditions of each AC-DC module, uniformly manages the working parameters (such as working power) of multiple AC-DC modules, so as to maintain the normal operation of the power supply when an AC-DC module fails.

[0072] In this feasible implementation manner, the second power supply board uniformly manages multiple AC-DC modules according to the logic of redundant power supply, so as to realize the integration of AC-DC modules and improve the management efficiency of the power supply.

[0073] A feasible implementation manner Figure 7 is a schematic structural diagram of the first indication module provided by the embodiment of the present application, as Figure 7As shown, the second power supply board includes a first indication module, where the first indication module is connected to the AC-DC module group, and the first indication module is used to give an alarm indication according to the working state of the AC-DC module group.

[0074] Exemplarily, the first indication module detects the working state of the AC-DC module group. If the working state is a fault, an alarm indication is issued to prompt the maintenance personnel to perform maintenance and repair in a timely manner.

[0075] Optionally, the first indication module can give an alarm indication by detecting whether the parameters (such as current, voltage, or temperature, etc.) of the AC-DC module are abnormal.

[0076] Optionally, the first indication module can give an alarm indication through an indicator light or a speaker. The first indication module can also be connected to other devices to send the fault information to other devices for alarm indication. Other devices such as the monitoring system for unified management of the computer room.

[0077] Optionally, the number of the first indication modules can be one or more. If the number of the first indication modules is one, the first indication module is used to indicate whether there is a faulty AC-DC module in the AC-DC module group. Indicating through one first indication module can reduce the material cost of the power supply. If the number of the first indication modules is multiple, each first indication module is connected to an AC-DC module, and each first indication module gives an alarm according to the working state of the corresponding AC-DC module. Through multiple first indication modules, the maintenance personnel can quickly locate the faulty AC-DC module.

[0078] In this feasible implementation manner, by giving an alarm indication through the first indication module, when a fault occurs in the AC-DC module, the maintenance personnel can be reminded in a timely manner, so that the fault can be eliminated in a timely manner, and the reliability of the power supply can be improved.

[0079] A feasible implementation manner is that the multiple DC-DC module groups include multiple parallel-connected DC-DC modules, where the DC-DC modules are used for redundant power supply.

[0080] Illustrated with a scenario example, taking the power supply mode of the DC-DC module as N+1 power supply as an example, the number of DC-DC modules is N+1. When N+1 DC-DC modules work simultaneously, the actual power of each DC-DC module is less than the maximum power, and the difference between the actual power and the maximum power is the margin. When one of the DC-DC modules fails, the other N DC-DC modules respectively increase their actual power until the total power of the N DC-DC modules is the same as the total power when N+1 DC-DC modules work simultaneously, and the increased actual power of each DC-DC module in the N DC-DC modules is less than or equal to the maximum power. Thus, when any one of the DC-DC modules fails, the total power of the remaining DC-DC modules remains unchanged, and the N DC-DC modules will not be damaged due to the excessively high increased actual power, thereby achieving stable power supply.

[0081] It should be noted that the N+1 redundant power supply of this application is only taken as an implementation mode. In actual applications, the corresponding N+M redundant power supply can be adopted according to specific scenarios, where N is a positive integer and M is a positive integer. This application does not limit the specific implementation mode of the redundant power supply.

[0082] Exemplarily, the AC-DC module and the DC-DC module of this application are decoupled and are no longer restricted by the design of multiple power supply units in the related art to avoid the failure of one path. The redundant power supply mode can be flexibly designed to reduce the cost of the power supply.

[0083] Illustrated with a scenario example, in the related art, to supply power to a load with a full-load power of 16KW, 10 power supply units with a total power of 32KW are required for redundant power supply. The 10 power supply units form two paths of power supply. When the input of any one path of power supply fails, the total power of the other 5 power supply units in one path is the same as the full-load power of the load, which is 16KW, thereby achieving redundant power supply. In this application, the input conversion component can switch the power supply input, and it will not cause multiple DC-DC modules to fail simultaneously due to the power supply input failure, so the number of DC-DC modules can be reduced.

[0084] In this feasible implementation, multiple DC-DC modules are used for redundant power supply. When some DC-DC modules fail, only the working parameters of the other DC-DC modules need to be adjusted to maintain the continuous power supply of the power supply, without affecting other components of the power supply, thereby improving the power supply stability of the power supply.

[0085] A feasible implementation is that the DC-DC module is connected to the output end of the AC-DC module group through a field-effect transistor or a relay.

[0086] Next, in combination with Figure 8 Taking the field-effect transistor as an example for illustration, the implementation method of the relay is the same by analogy.

[0087] Figure 8 This is a schematic diagram of the field-effect transistor provided by the embodiment of the present application. As Figure 8 shown, the AC-DC module group is connected to the field-effect transistor, the field-effect transistor is connected to the DC-DC module, and the field-effect transistor further includes pins through which a control signal is received. When the DC-DC module is normal, the inside of the field-effect transistor is in a conducting state, and the DC-DC module can receive the high-voltage direct current transmitted by the AC-DC module group. When the DC-DC module fails, the inside of the field-effect transistor can be controlled to be disconnected through the control signal, and at this time, the AC-DC module group stops transmitting high-voltage direct current to the DC-DC module.

[0088] Exemplarily, by controlling the on / off between the AC-DC module group and the DC-DC module through a field-effect transistor or a relay, when the DC-DC module fails, the corresponding current transmission can be timely disconnected, avoiding damage to other components on the line.

[0089] In this feasible implementation, through a field-effect transistor or a relay, damage to other components on the same line caused by a faulty DC-DC module can be avoided, thereby improving the reliability of the power supply.

[0090] A feasible implementation Figure 9 This is a schematic diagram of the structure of the power supply provided by the embodiment of the present application. As Figure 9 shown, the power supply further includes a plurality of heat dissipation components, wherein the heat dissipation components are connected to the DC-DC module, and the heat dissipation components are used to dissipate heat from the DC-DC module; at least part of the heat dissipation channels of the heat dissipation components overlap with the heat dissipation channels of the DC-DC module.

[0091] Optionally, each DC-DC module is integrally connected to at least one heat dissipation component, and each heat dissipation component is used to dissipate heat from the DC-DC module connected thereto.

[0092] Exemplarily, the heat dissipation channels of the DC-DC module are set according to the heat generation positions and the directions of the generated hot air of the DC-DC module. The heat dissipation components include at least one heat sink, and the heat dissipation channels of the heat dissipation components are set according to the orientations of the heat sinks. At least part of the heat dissipation channels of the heat dissipation components overlap with the heat dissipation channels of the DC-DC module, so that the direction of the hot air blown by the heat sinks of the heat dissipation components is the same as the direction of the hot air generated by the DC-DC module, thereby effectively dissipating the heat generated by the DC-DC module.

[0093] In related technologies, an independent heat dissipation component needs to be provided in a power supply. The independent heat dissipation component dissipates heat from the overall power supply. Setting up the independent heat dissipation component requires a relatively large volume in the power supply, resulting in a large overall volume of the power supply, and further compressing the space in the device where the power supply is installed, affecting the heat dissipation effect of the device.

[0094] Exemplarily, in the present application, the power supply is dissipated by an integrated heat dissipation component, and no independent heat dissipation component is provided in the power supply. The volume of the integrated heat dissipation component is smaller than that of the independent heat dissipation component, and the integrated design can further reduce the volume of the power supply, thereby improving the heat dissipation effect of the device where the power supply is installed.

[0095] In this feasible implementation, by integrating the heat dissipation component on the DC-DC module, the volume of the power supply can be reduced, thereby improving the heat dissipation effect of the device.

[0096] A feasible implementation Figure 10 is a schematic structural diagram of a connector provided in an embodiment of the present application. As Figure 10 shown, the first power supply board includes a plurality of connectors; the DC-DC module is connected to the connectors, and the connectors are used to send a first management signal to the DC-DC module; the heat dissipation component is connected to the connectors, and the connectors are used to send a second management signal to the heat dissipation component. The plurality of connectors are used to supply power to the heat dissipation component through the DC-DC module for the direct current output by the first power supply board.

[0097] Exemplarily, the first management signal is used to control the working parameters of the DC-DC module so that the actual working parameters of the DC-DC module can maintain the stable power supply of the power supply.

[0098] Optionally, the load is connected to the connectors, and the load sends a first management signal to the DC-DC module through the connectors. For example, the load can generate a first management signal according to the current number of available DC-DC modules and send the first management signal to the DC-DC module through the connectors, so that the actual working parameters of the DC-DC module match the current number of available DC-DC modules, thereby maintaining the stable power supply of the power supply.

[0099] Exemplarily, the low-voltage direct current output by the DC-DC module is converted into direct current adapted to the heat dissipation component through the connectors, and the direct current adapted to the heat dissipation component is transmitted to the heat dissipation component, so that the DC-DC module supplies power to both the device and the heat dissipation component at the same time. Refer to Figure 10 , taking the DC-DC module converting and outputting 54V direct current and the working voltage of the heat dissipation component being 12V as an example, the 54V direct current is used to supply power to the load, and the connectors convert the 54V direct current into 12V direct current for supplying power to the heat dissipation component.

[0100] In this feasible implementation, by using a single connector to simultaneously achieve the conversion of the power supply voltage of the heat dissipation component and the transmission of management signals, the number of devices in the power supply can be reduced, thereby reducing the cost of the power supply.

[0101] In a feasible implementation, each group of DC-DC modules includes at least one standby DC-DC module, and the standby DC-DC module is used for standby power supply.

[0102] Exemplarily, each group of DC-DC modules includes a primary DC-DC module and a standby DC-DC module.

[0103] Exemplarily, the primary DC-DC module operates except in case of failure. The standby DC-DC module is used to convert high-voltage direct current into low-voltage direct current suitable for the load. The standby DC-DC module is in a stopped working state when the primary DC-DC module is working properly and does not convert current. The standby DC-DC module works only when the number of faults in the primary DC-DC module is greater than or equal to the number threshold to achieve stable power supply of the power source.

[0104] Taking the scenario example and taking the number threshold as 2 as an example, if the number of faults in the primary DC-DC module is 1, the working primary DC-DC modules that can work can increase their working power to work, ensuring that the total power of the primary DC-DC modules can maintain the normal operation of the power supply. At this time, the standby DC-DC module does not work. If the number of faults in the primary DC-DC module is 2, even if the working primary DC-DC modules increase their working power to the maximum power, the total power of the primary DC-DC modules cannot achieve the normal operation of the power supply. At this time, the standby DC-DC module works so that the total power of the primary DC-DC module and the standby DC-DC module can achieve the normal operation of the power supply, thereby achieving stable power supply of the power source.

[0105] In this feasible implementation, by setting up a standby DC-DC module, a supplementary strategy for dealing with the faults of the DC-DC module can be added on the basis of redundant power supply. In the scenario where the redundant power supply is not sufficient to deal with the faults, the normal power supply of the power source can be achieved through the supplementary strategy, thereby further improving the reliability of the power source.

[0106] In a feasible implementation, the power supply further includes a second indication module, wherein the second indication module is connected to the DC-DC module, and the second indication module is used for alarm indication according to the working state of the DC-DC module.

[0107] Exemplarily, the second indication module detects the working state of the DC-DC module group. If the working state of the DC-DC module group is a fault, an alarm indication is issued to prompt the maintenance personnel to perform maintenance and repair in time.

[0108] Optionally, the second indication module can give an alarm indication by detecting whether the operating parameters (such as current, voltage, or temperature, etc.) of the DC-DC module are abnormal.

[0109] Optionally, the second indication module can give an alarm indication through an indicator light or a speaker. The second indication module can also be connected to other devices to send the fault information to other devices for alarm indication. Other devices such as the monitoring system for unified management of the computer room.

[0110] Optionally, the number of second indication modules can be one for each DC-DC module group or one for each DC-DC module. If there is one second indication module for each DC-DC module group, the second indication module is used to indicate whether there is a faulty DC-DC module in each DC-DC module group. By setting a smaller number of second indication modules for indication, the material cost of the power supply can be reduced. If there is one second indication module for each DC-DC module, each second indication module gives an alarm according to the operating state of the corresponding DC-DC module. Through multiple second indication modules, maintenance personnel can quickly locate the faulty DC-DC module.

[0111] In this feasible implementation manner, by giving an alarm indication through the second indication module, when the DC-DC module fails, maintenance personnel can be reminded in time, so that the fault can be eliminated in time, and the reliability of the power supply can be improved.

[0112] A feasible implementation manner, the power supply further includes a capacitor module, wherein the capacitor module is connected to the DC-DC module, and the capacitor module is used to maintain the output stability of the DC-DC module.

[0113] Exemplarily, the capacitor module is arranged at the input end of the DC-DC module. The high-voltage direct current input to the DC-DC module first passes through the capacitor module and then is transmitted to the DC-DC module. The capacitor module at the input end is used to store the transient energy of the commercial power, quickly respond to the current fluctuation (such as the fluctuation caused by the current surge during power startup), and control the fluctuation within the allowable range to improve the operating stability of the DC-DC module.

[0114] Exemplarily, the capacitor module is arranged at the output end of the DC-DC module. The low-voltage direct current output from the input DC-DC module first passes through the capacitor module and then is transmitted to the load. When the load changes suddenly (such as when the load switches from low power consumption to full load), it will cause a change in the demand for the current output by the power supply. The capacitor module at the output end can quickly compensate for or absorb the energy gap to avoid the problem of insufficient transient response ability of the power supply, thereby improving the operating stability of the DC-DC module.

[0115] It should be noted that the capacitance module can be set at both the input end and the output end of the DC-DC module simultaneously or only at one end.

[0116] In this feasible implementation, by setting the capacitance module, transient changes in the power supply circuit can be addressed, thereby enhancing the stability of the power supply.

[0117] In a feasible implementation, the power supply further includes multiple monitoring modules. Among them, the monitoring modules are connected to the power supply interface and the input conversion component, and the monitoring modules are used to monitor the current signal of the power supply interface.

[0118] Exemplarily, the monitoring module is integrated on the power path between the power supply interface and the input conversion component. The current output by the power supply interface first passes through the monitoring module and then is transmitted to the input conversion component, so that the monitoring module can obtain the current signal output by the power supply interface. The redundant power supply of the power supply can be controlled through the parameters of the current signal.

[0119] Exemplarily, each power supply interface is connected to a monitoring module, and each monitoring module is used to monitor the current output by the corresponding power supply interface.

[0120] Optionally, the current signal is collected non-invasively through a Hall effect sensor or a current transformer. Measuring the current in a non-invasive manner can avoid affecting the power supply line as it does not require cutting off the main circuit.

[0121] Optionally, the signal is amplified by an operational amplifier, filtered, and then converted into a digital quantity, which is convenient for transmission.

[0122] Optionally, a controller collects the current signals collected by multiple monitoring modules and transmits the current signals uniformly. Compared with each monitoring module transmitting separately, the number of transmissions can be reduced, thereby improving the transmission efficiency.

[0123] In this feasible implementation, by setting the monitoring module and connecting the monitoring module to the power supply line of the power supply interface, the current signal of the power supply interface can be collected in real time, thereby improving the accuracy of the redundant power supply.

[0124] In a feasible implementation, the power supply further includes a filtering module; among them, the filtering module is connected to the input conversion component and the input end of the AC-DC module group, and the filtering module is used to filter the alternating current input by the power supply interface.

[0125] Exemplarily, the filtered alternating current is input to the input conversion component to reduce the voltage stress borne by the input conversion component and improve the conversion efficiency. The filtering module suppresses the distortion of the input current waveform and further improves the power supply stability of the power supply.

[0126] Optionally, a common-mode inductor is wound with a toroidal core to suppress the common-mode noise between the power grid and the device (such as high-frequency interference back-fed by a switching power supply, etc.); differential-mode noise (such as power grid harmonics) is filtered respectively and a grounding discharge path is provided to block high-frequency interference from entering the subsequent circuit.

[0127] Optionally, an adjustable filtering module is provided. Based on the power quality data (such as harmonic spectrum) of the commercial power, different compensation capacitors with different capacitance values are switched in or the inductor tap is adjusted through a relay to dynamically adjust the filtering module.

[0128] In this feasible implementation manner, a filtering module is arranged between the power supply interface and the input conversion component to form an all-round noise suppression and energy purification for the AC input signal. As the first barrier at the input stage, the filtering module is directly connected in series at the back end of the power supply interface, responsible for eliminating high-frequency interference, voltage surges and harmonic pollution in the commercial power, ensuring that the input conversion component and the subsequent conversion module receive pure electric energy, thereby improving the power supply reliability of the power supply.

[0129] Figure 11 The following is a schematic structural diagram of the power supply system provided by the embodiment of the present application. As Figure 11 shown, the power supply system includes: a load and a power supply. Among them,

[0130] The output end of the power supply is connected to the input end of the load, and the power supply is used to supply power to the load;

[0131] The heat dissipation channels of the DC-DC module of the power supply and the heat dissipation channel of the load at least partially overlap.

[0132] Exemplarily, the power supply supplies power to the load, and the load distributes the current output by the power supply to the corresponding devices on the corresponding load.

[0133] Exemplarily, the load includes but is not limited to at least one of the following: a main board, a management board, a hard disk backplane, or an IO board, etc.

[0134] Combined with the scenario example for illustration, taking the main board as the load as an example, there can be multiple components on the main board, such as a Central Processing Unit (CPU for short), a main board heat dissipation component, a memory, etc. The main board itself and each component need to be powered, and the working voltages of the main board and each component are different. For example, the current output by the power supply includes 54V DC and 12V DC. The 54V DC powers the main board itself, and the 12V DC powers the components on the main board. The same applies to other load types.

[0135] Exemplarily, the heat dissipation channels of the load are set according to the heat generation positions of the load and the components on the load and the direction of the generated hot air. The heat dissipation channels of the DC-DC module of the power supply at least partially overlap with the heat dissipation channels of the load, so that the direction of the blowing of the heat sink of the heat dissipation component integrated in the DC module is the same as the direction of the hot air generated by the load, thereby improving the overall heat dissipation effect of the power supply system.

[0136] In a feasible implementation, the output end of the power supply includes a plurality of output interfaces, and the plurality of output interfaces correspond to a plurality of rated voltages. The input end of the load includes a plurality of input interfaces, and the plurality of input interfaces correspond to a plurality of rated voltages. Among them, the plurality of output interfaces and the plurality of input interfaces are correspondingly connected according to the corresponding relationship of the rated voltages.

[0137] Exemplarily, the load includes a plurality of components. Each input interface of the load is connected to a corresponding line, and the rated voltage of the component connected to each line is the same as the rated voltage of the corresponding input interface.

[0138] Combined with a scenario example for illustration, the output interface A is connected to the component A through a line. The rated voltages of the output interface A and the component A are both 12V. Then, the output interface A is connected to the output interface of the power supply that outputs 12V direct current to achieve effective power supply to the component A.

[0139] In this feasible implementation, by connecting the output interface of the power supply and the input interface of the load according to the corresponding relationship of the rated voltages, power supply can be accurately carried out in accordance with the rated voltage of the device, thereby improving the accuracy of power supply.

[0140] In a feasible implementation, the load is respectively connected to the AC-DC module group and the DC-DC module of the power supply through control lines. The load is used to perform redundant power supply to the AC-DC module group and the DC-DC module of the power supply respectively through the control lines.

[0141] Exemplarily, the load controls the working parameters of each AC-DC module through the control line, so that the total working parameters of the AC-DC module group can maintain the normal power supply of the power supply. The load controls the working parameters of each DC-DC module through the control line, so that the total working parameters of the multiple DC-DC modules can maintain the normal power supply of the power supply.

[0142] Combined with a scenario example for illustration, a processor can be installed in the load. The processor can accurately calculate the current appropriate working parameters when the AC-DC module or the DC-DC module fails. Through the control line, the load can clearly instruct the AC-DC module and the DC-DC module to work according to the appropriate working parameters, thereby accurately controlling the redundant power supply.

[0143] In this feasible implementation, by controlling the operating parameters of the AC-DC module group and the DC-DC module for redundant power supply, the reliability of redundant power supply can be improved.

[0144] In a feasible implementation, the load is connected to the field effect transistor or relay of the power supply, and the load is used to control the field effect transistor or relay of the power supply to disconnect the input connection.

[0145] Exemplarily, the load controls the power supply on and off through a field effect transistor or a relay, which can timely disconnect the corresponding current transmission when the AC-DC module or the DC-DC module fails, avoiding damage to other components on the line.

[0146] In this feasible implementation, through the field effect transistor or relay, the load can control the power supply in real time, thereby improving the real-time performance of redundant power supply of the power supply.

[0147] In a feasible implementation, the load is connected to the monitoring module of the power supply, and the load is used to control the power supply to perform redundant power supply according to the monitoring data of the monitoring module.

[0148] Exemplarily, the detection data can be the real-time operating parameters of the power supply.

[0149] Exemplarily, the load obtains the real-time operating parameters of the power supply through the monitoring module, the load calculates the matching operating information according to the real-time operating parameters, and the load instructs the power supply to work according to the matching operating information to stabilize the power supply of the power supply.

[0150] In this feasible implementation, by setting the monitoring module and connecting the monitoring module to the power supply, the operating parameters of the power supply can be collected in real time, thereby improving the accuracy of redundant power supply.

[0151] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation.

[0152] Those skilled in the art can further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the components and steps of each example have been generally described according to their functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0153] The above has introduced in detail a power supply and a power supply system provided by the present application. Specific examples are used in this text to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A power supply, characterized in that: include: A plurality of power supply interfaces, an input conversion component, an AC to DC module group, a plurality of DC to DC modules, and a first power board, wherein: The input conversion component is connected to the power supply interface, the input conversion component is connected to the input end of the AC-DC module group, and the input conversion component is used to realize the connection switching between the AC-DC module group and the power supply interface; The output end of the AC-DC module group is connected to the input end of the DC-DC module, and the AC-DC module group is used to convert AC power into DC power that is compatible with the DC-DC module; The output end of the DC-to-DC module is connected to the first power board, and the DC-to-DC module is used to output DC power of corresponding voltage through the first power board.

2. The power supply according to claim 1, characterized in that: The AC-DC module group includes a plurality of AC-DC modules connected in parallel, wherein: The AC to DC module is used for redundant power supply.

3. The power supply according to claim 2, characterized in that: The input end of the AC-to-DC module is connected to the input conversion component through a field effect transistor or a relay.

4. The power supply according to claim 2, characterized in that: The AC-to-DC module group includes at least one standby AC-to-DC module, and the standby AC-to-DC module is used for standby power supply.

5. The power supply according to any one of claims 1 to 4, characterized in that: The power supply also includes a second power board, wherein: The AC-DC module group is connected to the second power board; The second power board is connected to the input conversion component, the second power board is connected to the input end of the DC-to-DC module, and the second power board is used to realize redundant power supply of the AC-to-DC module group.

6. The power supply according to claim 5, characterized in that: The second power board includes a first indication module, wherein: The first indication module is connected to the AC-DC module group, and is used for providing an alarm indication according to a working state of the AC-DC module group.

7. The power supply according to claim 1, characterized in that: The DC-DC converter module includes a plurality of DC-DC converter modules connected in parallel, wherein: The DC-to-DC module is used for redundant power supply.

8. The power supply according to claim 7, characterized in that: The DC-to-DC module is connected to the output end of the AC-to-DC module group through a field effect transistor or a relay.

9. The power supply according to claim 7, characterized in that: The power supply also includes a plurality of heat dissipation components, wherein: The heat dissipation channel of the heat dissipation assembly at least partially overlaps with the heat dissipation channel of the DC-to-DC module.

10. The power supply according to claim 9, characterized in that: The first power board includes a plurality of connectors; The DC-DC converter module is connected to the connector, and the connector is used to send a first management signal to the DC-DC converter module; The heat dissipation component is connected to the connector, and the connector is used to send a second management signal to the heat dissipation component. The multiple connectors are used to power the heat dissipation component through the DC power output by the first power board via the DC-to-DC module.

11. The power supply according to claim 7, characterized in that: Each group of DC-to-DC modules includes at least one standby DC-to-DC module, and the standby DC-to-DC module is used for standby power supply.

12. The power supply according to claim 7, characterized in that: The power supply further includes a second indication module, wherein: The second indication module is connected to the DC-DC converter module, and is used for providing an alarm indication according to a working state of the DC-DC converter module.

13. The power supply according to claim 7, characterized in that: The power supply further includes a capacitor module, wherein: The capacitor module is connected to the DC-DC converter module, and is used to maintain the output stability of the DC-DC converter module.

14. The power supply according to claim 1, characterized in that The power supply also includes a plurality of monitoring modules, wherein: The monitoring module is connected to the power supply interface and the input conversion component, and the monitoring module is used to monitor the current signal of the power supply interface.

15. The power supply according to claim 1, characterized in that The power supply also includes a filter module; wherein, The filter module is connected to the input conversion component and the input end of the AC to DC module group, and the filter module is used to filter the AC power input by the power supply interface.

16. A power supply system, characterized in that: include: A load, and a power supply according to any one of claims 1 to 15, wherein: The output end of the power supply is connected to the input end of the load, and the power supply is used to supply power to the load; The heat dissipation channel of the DC-to-DC module of the power supply at least partially overlaps with the heat dissipation channel of the load.

17. The power supply system according to claim 16, characterized in that: The output end of the power supply includes a plurality of output interfaces, and the plurality of output interfaces correspond to a plurality of rated voltages. The input end of the load includes a plurality of input interfaces, and the plurality of input interfaces correspond to a plurality of rated voltages. The plurality of output interfaces are connected to the plurality of input interfaces in correspondence with each other according to a corresponding relationship of rated voltages.

18. The power supply system according to claim 16, characterized in that: The load is connected to the AC-DC module group and the DC-DC module of the power supply through control lines, and the load is used to provide redundant power supply to the AC-DC module group and the DC-DC module of the power supply through the control lines.

19. The power supply system according to claim 18, characterized in that: The load is connected to the field effect transistor or the relay of the power supply, and the load is used to control the field effect transistor or the relay of the power supply to disconnect the input connection.

20. The power supply system according to claim 16, characterized in that: The load is connected to the monitoring module of the power supply, and the load is used to control the power supply to perform redundant power supply according to the monitoring data of the monitoring module.

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