Power module and electronic device

Abstract

The application provides a power module and an electronic device, which can be applied to the technical field of hardware. The power module comprises: a plurality of power modules; an input module connected with the plurality of power modules, the input module being used for receiving a first voltage and a second voltage, providing the first voltage as an input voltage of the plurality of power modules to the plurality of power modules respectively, and providing the second voltage as the input voltage of the plurality of power modules to the plurality of power modules respectively in response to a failure of the first voltage; and a control module connected with the plurality of power modules, the control module being used for controlling the plurality of power modules to convert the input voltage into an output voltage, and controlling the remaining power modules to supply power in response to a failure of less than or equal to X power modules in the plurality of power modules, wherein the total number of the plurality of power modules is X+N, X and N are positive integers, and the sum of the rated powers of N power modules is equal to a planned load of the power module.

Description

Technical Field

[0001] At least one embodiment of this application relates to the field of hardware technology, and more specifically to a power module and an electronic device. Background Technology

[0002] Server room power supply systems are core infrastructure ensuring the stable operation of data centers. The power supply architecture primarily combines 220Vac AC and 240Vdc DC power, with a small number of data centers using 336Vdc DC power. With the rapid development of new energy technologies such as wind power and solar energy, the advantages of short-distance DC power supply to data centers are becoming increasingly apparent. This not only improves energy efficiency but also aligns with green and low-carbon trends, leading to increased industry attention on high-voltage DC power supply scenarios for servers. Summary of the Invention

[0003] According to a first aspect of this application, a power supply module is provided, comprising: a plurality of power modules, each power module being used to convert an input voltage into an output voltage, and the output power of each power module during operation being less than or equal to its rated power; an input module connected to the plurality of power modules, the input module being used to receive a first voltage and a second voltage, providing the first voltage as the input voltage to the plurality of power modules respectively, and in response to a fault in the first voltage, providing the second voltage as the input voltage to the plurality of power modules respectively; a control module connected to the plurality of power modules, the control module being used to control the plurality of power modules to convert the input voltage into an output voltage, and in response to a fault in less than or equal to X power modules among the plurality of power modules, controlling the remaining power modules to supply power, wherein the total number of the plurality of power modules is X+N, where X and N are both positive integers, and the sum of the rated power of the N power modules is equal to the planned load of the power supply module; and an auxiliary power supply module connected to the input module, used to supply power to the input modules.

[0004] Another aspect of this application provides an electronic device including the power module described above. Attached Figure Description

[0005] The above-mentioned contents, other objects, features and advantages of this application will become clearer from the following description of embodiments of this application with reference to the accompanying drawings.

[0006] Figure 1 A schematic diagram of a server power supply in related technologies is shown.

[0007] Figure 2 A schematic diagram of a power module according to an embodiment of this application is shown.

[0008] Figure 3 A schematic diagram of a power module according to yet another embodiment of this application is shown.

[0009] Figure 4 A schematic diagram of a power module according to an embodiment of this application is shown.

[0010] Figure 5 A schematic diagram of a power unit according to an embodiment of this application is shown.

[0011] Figure 6 A schematic side view of a power module according to another embodiment of this application is shown.

[0012] Figure 7 A schematic diagram showing a rear view of a power module according to another embodiment of this application is illustrated.

[0013] Figure 8 A schematic top view of a plurality of power modules according to another embodiment of this application is shown.

[0014] Figure 9 A schematic perspective view of a plurality of power modules according to another embodiment of this application is shown.

[0015] Figure 10 A schematic diagram illustrating the principle of voltage conversion according to an embodiment of this application is shown.

[0016] Figure 11 A schematic diagram of an electronic device according to an embodiment of this application is shown.

[0017] Figure 12 A schematic diagram of the software design of an electronic device according to an embodiment of this application is shown. Detailed Implementation

[0018] The embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of this application. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of this application for ease of explanation. However, it will be apparent that one or more embodiments may be implemented without these specific details. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this application.

[0019] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0020] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0021] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0022] With the changing demands of data centers for power supply and high-efficiency, green power, the implementation of 400V and 800V high-voltage DC power supply solutions is gradually gaining traction. This presents new challenges to the compatibility, stability, and security of server high-voltage DC power supplies with traditional AC power solutions and existing equipment. Therefore, the key technical challenge in this field is designing server power supplies that adapt to the evolving needs of high-voltage DC power supply.

[0023] Figure 1 A schematic diagram of a server power supply in related technologies is shown.

[0024] The server power supplies in related technologies use a 220V AC power supply scheme, requiring a first-stage boost and power factor correction to convert the AC power into a stable high-voltage DC voltage. The maximum power density can reach 100W / in³, and the power of a single power module is limited to below 3600W due to the constraints of the AC power connector. Simultaneously, each server power supply must have EMI (Electromagnetic Interference) filtering design and a separate heat dissipation design, and must also meet power redundancy requirements (i.e., dual A / B power supply) and module redundancy requirements to ensure that other power modules can guarantee normal power supply to the server in the event of a single power module failure. Figure 1 As shown, input A inputs 220V AC power into power module A, which performs EMI filtering, AC-to-DC conversion, and DC-to-DC step-down to output low-voltage DC. Input B inputs 220V AC power into power module B.

[0025] Server power supplies are based on a dual-input, dual-power-module (A / B) architecture. Each power module has relatively low power output, and each module requires separate EMI filtering and heat dissipation designs, making it difficult to improve power density (due to the large space occupied by auxiliary functional modules). Traditional server power supplies use metal MOSFETs, which have inherently low switching frequencies, resulting in large core magnetic power devices in the power modules, significantly impacting power density. Designing a high-voltage DC power supply solution based on this traditional server power supply architecture makes it difficult to improve the overall power density of the power supply.

[0026] The server power supply employs a dual-input (A / B) architecture with dual power modules. While this architecture offers certain advantages in reliability, it suffers from several inherent bottlenecks in power density improvement, directly limiting the optimization potential of the high-voltage DC power supply solution. First, the low power output of a single power module is a fundamental constraint. To ensure power supply stability, the dual-module design requires redundant capacity, but the insufficient power of a single module makes it difficult to exceed the overall power limit. More critically, each power module requires a separate EMI filter and heat dissipation module. These auxiliary modules occupy a significant amount of internal space, compressing the proportion of the core power conversion section in the overall power supply volume, further exacerbating the difficulty of increasing power density. Second, the characteristics of core components significantly limit power density. Server power supplies use metal field-effect transistors (MOSFETs) as core switching devices, which inherently have low switching frequencies. Since switching frequency is negatively correlated with the size of magnetic power devices, at low frequencies, to meet power transmission requirements, the core magnetic power devices must be designed to be larger, not only occupying more space but also indirectly increasing the heat dissipation burden, creating a double constraint on power density improvement.

[0027] The aforementioned multiple bottlenecks combine to make it difficult to fundamentally optimize the overall power density of a power supply when developing high-voltage DC power supply solutions based on traditional server power supply architectures. Even if local parameters of individual modules are adjusted, the inherent defects of the architecture will offset these adjustments, preventing a breakthrough in power density and making it difficult to meet the needs of servers moving towards miniaturization and high density.

[0028] The embodiments of this application provide a power module that aims to solve at least one of the above-mentioned technical problems.

[0029] Figure 2 A schematic diagram of a power module according to an embodiment of this application is shown.

[0030] like Figure 2 As shown, the power module 100 includes multiple power modules 10, an input module 20, a control module 30, and an auxiliary power supply module 40.

[0031] Input module 20 is connected to multiple power modules 10. Input module 20 receives a first voltage and a second voltage, providing the first voltage as the input voltage to each of the power modules 10. In response to a first voltage failure, it provides the second voltage as the input voltage to each of the power modules 10. The first and second voltages can be two independent power sources designed to improve the reliability of the power supply system. The first voltage is the primary power supply, preferentially connected to the power supply circuit of power module 100 during normal operation of the power supply system. The second voltage is a backup power supply, a completely independent power supply circuit from the first voltage. The source of the second voltage can be a substation or emergency power supply equipment with a different voltage source than the first voltage. A first voltage failure can occur due to substation failure, power outage in the grid area, etc. Input module 20 can respond to a first voltage failure by providing the second voltage as the input voltage to each of the power modules 10. In some embodiments, the input module can be an ATS (Automatic Transfer Switch) dual-input module. The ATS dual-input module can include two DC circuit breakers, a voltage detection unit, and a logic control board. The two DC circuit breakers can receive a first voltage and a second voltage respectively. The voltage detection unit monitors the voltage and current values ​​of the first voltage. The logic control board can quickly disconnect the DC circuit breaker connected to the first voltage and close the DC circuit breaker connected to the second voltage in the event of undervoltage, overvoltage, or power failure in the first voltage. Furthermore, after the first voltage recovers, it can automatically and quickly close the DC circuit breaker connected to the first voltage and disconnect the DC circuit breaker connected to the second voltage to ensure uninterrupted load on the power module.

[0032] According to embodiments of this application, by using a dual-input module that provides support for a first voltage and a second voltage, in response to a fault in the first voltage, the second voltage can be provided as the input voltage to multiple power modules respectively. This achieves a redundant design of the input voltage, eliminating single points of failure at the power supply source level, so that the load of the power module can continuously obtain power, improving the reliability and fault tolerance of the power module.

[0033] Each power module 10 converts the input voltage into an output voltage, and the output power of each power module 10 during operation is less than or equal to its rated power. A control module 30 is connected to multiple power modules 10 and controls the power modules 10 to convert the input voltage into an output voltage. In response to the failure of X or more power modules 10, the control module 30 controls the remaining power modules 10 to supply power, where the total number of power modules is X+N, where X and N are positive integers, and the sum of the rated power of the N power modules equals the planned load of the power supply module. An auxiliary power supply module 40 is connected to the input module 20 and supplies power to the input module 20.

[0034] When X power modules 10 out of X+N power modules 10 are functioning correctly, they can share the load current of the power supply module, with each module's output power below its rated power to reduce individual module losses. If X power modules 10 fail, the control module 30 controls the remaining N power modules 10 to supply power in parallel at their rated power to meet the power requirements of the power supply module's load. The N power modules 10 can actively share current, ensuring that their output currents are essentially the same to prevent overload of individual modules. The failure of X power modules 10 could be due to aging or damage to components such as switching transistors and capacitors.

[0035] X+N power modules 10 represent a redundant design for power modules. N power modules 10 at their rated power can meet the maximum power demand of the load. Adding X power modules for redundancy ensures that even if a maximum of X power modules fail, the N power modules can still guarantee power supply. For example, if the maximum power demand of the load is 15kW, and the rated power of the power modules is designed to be 5kW, three 5kW power modules would suffice. However, by adding one more power module for redundancy, four 5kW power modules can work together. With all four 5kW power modules operating normally, they can evenly distribute the 15kW load demand, with each 5kW module handling only 3.75kW. If one 5kW power module fails, the remaining three 5kW power modules can still meet the 15kW load demand. For example, if the load demand is 10kW, two 5kW power modules would suffice. However, by adding two power modules for redundancy, four 5kW power modules can work together. With all four 5kW power modules operating normally, the 10kW load demand can be evenly distributed among them, with each 5kW module only needing to handle 2kW of load. Even if one or two 5kW power modules fail, the remaining 5kW modules can still meet the 10kW load demand. The control module can respond to the failure of X power modules, controlling the remaining N power modules to supply power at their rated power. This eliminates single points of failure at the power conversion level, ensuring stable power supply within the power module and further improving its reliability and fault tolerance.

[0036] The auxiliary power supply module 40 can generate internal power supply for the power module to power the input module 20 when either the first or second voltage source is supplying power. In some embodiments, the auxiliary power supply module 40 can be an ATS auxiliary power supply module, which supplies power to the ATS dual-input module. As an example, the ATS auxiliary power supply module can provide operating voltage to the two DC circuit breakers, voltage detection unit, and logic control board of the ATS dual-input module. It can draw power from both the first and second voltage sources, so that the ATS dual-input module can still operate normally in the event of a first voltage failure, ensuring that the ATS dual-input module can complete the switching operation. In one embodiment, the ATS auxiliary power supply module may include a status detection module to assist in monitoring the status of the first or second voltage source.

[0037] According to embodiments of this application, by setting multiple power modules inside the power module, and combining the control logic of the control module, the dual-input switching of the input module, and the design of the auxiliary power supply module that accompanies the input module, the overall architecture of the power module of this application embodiment is formed. Based on the overall architecture of the power module of this application embodiment, redundant design of multiple power modules and redundant design of dual-input power supply of the first voltage and the second voltage can be realized. Compared with the prior art, where a power module includes only one power module, the power module of this application embodiment improves power density while maintaining the same power module size.

[0038] According to embodiments of this application, the power supply module may further include an input filtering module and an output filtering module. The input filtering module is connected between the input module and the input terminals of the multiple power modules, and is used to filter the input voltage provided by the input module to the multiple power modules. The output filtering module is connected to the output terminals of the multiple power modules, and is used to filter the output voltage generated by the multiple power modules.

[0039] According to embodiments of this application, the input filtering module is located between the power supply system and multiple power modules. It prevents high-frequency switching currents within the power modules from flowing back to the power grid, suppresses noise interference from the power modules to the power supply system, and attenuates external interference from the power supply system, such as grid surges and spike noise, providing relatively clean DC power to the internal circuits of the multiple power modules. The input filtering module can be an EMI filtering module, which meets EMC (Electromagnetic Compatibility) requirements. The output filtering module is located between the multiple power modules and the load of the power supply modules. It filters out high-frequency noise generated by the power modules during power conversion, smooths the output voltage, and converts the output voltage into a smooth and stable DC voltage required by the load. The output filtering module can be a filtering design for the output voltage that is commonly found in conventional power supplies.

[0040] Figure 3 A schematic diagram of a power module according to yet another embodiment of this application is shown.

[0041] like Figure 3 As shown, the power supply module may include four power modules, each of which can be a 5kW DC-DC step-down module 11. The power supply module also includes an ATS dual-input module 21, a control module 30, an auxiliary power supply module 40, an EMI filter module 51, and an output filter module 60.

[0042] The power module receives a first voltage input and a second voltage input. The first voltage input can be the voltage from input channel A, and the second voltage input can be the voltage from input channel B. The ATS dual-input module 21 defaults to using the voltage from input channel A as the input voltage for the four 5kW DC-DC step-down modules 11. In response to a power outage or abnormality in the voltage from input channel A, the ATS dual-input module 21 can actively switch the voltage from input channel B to the four 5kW DC-DC step-down modules 11. The ATS dual-input module 21 can control the switching between power supply from input channels A and B, with only one power supply available at a time. After passing through the ATS dual-input module 21, only one power supply reaches the EMI filter module 51. The EMI filter module 51 acts as an input filter module, using the filtered supply voltage as the input voltage for the four 5kW DC-DC step-down modules 11. The four 5kW DC-DC step-down modules 11 can achieve 3+1 redundant power supply; if one 5kW DC-DC step-down module 11 fails, the remaining three 5kW DC-DC step-down modules 11 can support full power output and hot-swappable replacement and maintenance.

[0043] In one example, the ATS dual-input module 21 can sample solid-state relays. The EMI filter module 51 may include filters, fuses, voltage and current isolation sampling, and power-down sustaining capacitors. The auxiliary power supply module 40 can generate internal power for the power module when either the first or second voltage source is supplied, and can supply power to the ATS dual-input module 21, control module 30, EMI filter module 51, and output filter module 60.

[0044] Figure 4 A schematic diagram of a power module according to an embodiment of this application is shown.

[0045] like Figure 4 As shown, the power module may include multiple power units and a switching circuit 13. The switching circuit 13 receives an input voltage, which can be represented by a DC voltage Vdd.

[0046] According to embodiments of this application, each power unit is used to convert the received voltage into an output voltage for supplying power to the load.

[0047] The switching circuit 13 is connected to multiple power units and is used to receive input voltage. In a first mode, it provides the input voltage to the multiple power units respectively, and in a second mode, it divides the input voltage among the input terminals of the multiple power units. The control module is also used to control the switching circuit 13 to enter the first mode in response to the input voltage having a first voltage value, and to control the switching circuit 13 to enter the second mode in response to the input voltage having a second voltage value higher than the first voltage value.

[0048] like Figure 4 As shown, in one example, the 5kW DC-DC step-down module 11 may include two identical 400V to 54V power units. The first voltage value may be 400V, and the second voltage value may be 800V, which is higher than 400V. The control module can monitor the input voltage value and, when the input voltage is 400V, supply 400V to the multiple power units respectively; when the input voltage is 800V, divide the 800V among the input terminals of the multiple power units, for example, divide the 800V evenly among the input terminals of the multiple power units.

[0049] According to an embodiment of this application, under the control of the control module, the switching circuit can operate in two modes, enabling multiple power units to perform both step-down conversion on the first voltage value of the input voltage and step-down conversion on the second voltage value of the input voltage.

[0050] like Figure 4 As shown, according to an embodiment of this application, the plurality of power units may include a first power unit 12_1 and a second power unit 12_2.

[0051] The switching circuit 13 has a first voltage terminal P1 and a second voltage terminal P2 for receiving input voltage. The switching circuit 13 is configured to, in a first mode, connect the first input terminal D11 and the second input terminal D12 of the first power unit 12_1 to the first voltage terminal P1 and the second voltage terminal P2, respectively, and connect the first input terminal D21 and the second input terminal D22 of the second power unit 12_2 to the first voltage terminal P1 and the second voltage terminal P2, respectively; in a second mode, connect the first input terminal D11 of the first power unit 12_1 to the first voltage terminal P1, connect the second input terminal D22 of the second power unit 12_2 to the second voltage terminal P2, and connect the second input terminal D12 of the first power unit 12_1 and the first input terminal D21 of the second power unit 12_2 together.

[0052] According to embodiments of this application, in a first mode, the first input terminal and the second input terminal of the first power unit are respectively connected to a first voltage terminal and a second voltage terminal, allowing the first power unit to directly receive the input voltage through the first and second voltage terminals of the switching circuit. Similarly, the first input terminal and the second input terminal of the second power unit are respectively connected to the first and second voltage terminals, allowing the second power unit to directly receive the input voltage through the first and second voltage terminals of the switching circuit. That is, the first and second power units can receive the input voltage in parallel through the first and second voltage terminals of the switching circuit and perform voltage division. In a second mode, the first input terminal of the first power unit is connected to the first voltage terminal, and the second input terminal of the second power unit is connected to the second voltage terminal. The second input terminal of the first power unit and the first input terminal of the second power unit are connected in series, allowing the first and second power units to receive the input voltage through the first and second voltage terminals of the switching circuit and perform voltage division.

[0053] According to an embodiment of this application, the switching circuit includes a first switch, a second switch, and a third switch.

[0054] The first switch is connected between the second input terminal and the second voltage terminal of the first power unit. The second switch is connected between the first input terminal and the first voltage terminal of the second power unit. The third switch is connected between the second input terminal of the first power unit and the first input terminal of the second power unit. The control terminals of the first, second, and third switches are all connected to the control module.

[0055] According to embodiments of this application, the control terminals of the first switch, the second switch, and the third switch are all connected to the control module. The control module can control the connection relationship between the switching circuit, the first power unit, and the second power unit by controlling the first switch, the second switch, and the third switch.

[0056] In one embodiment, the first switch, the second switch, and the third switch can be semiconductor device switches, such as transistor switches. Figure 4 As shown, the first switch can be the tenth transistor switch Q10, which is an IGBT (Insulated Gate Bipolar Transistor). The second switch can be the eleventh transistor switch Q11, which is also an IGBT. The third switch can be the twelfth transistor switch Q12, which is also a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor).

[0057] The tenth transistor switch Q10 is connected between the second input terminal D12 of the first power unit 12_1 and the second voltage terminal P2. The eleventh transistor switch Q11 is connected between the first input terminal D21 of the second power unit 12_2 and the first voltage terminal P1. The twelfth transistor switch Q12 is connected between the second input terminal D12 of the first power unit 12_1 and the first input terminal D21 of the second power unit 12_2. The control terminals of the tenth transistor switch Q10, the eleventh transistor switch Q11, and the twelfth transistor switch Q12 are all connected to the control module (not shown in the figure), and can be quickly turned on and off under the control of the control module.

[0058] According to an embodiment of this application, the switching circuit further includes a first capacitor and a second capacitor.

[0059] A first capacitor is connected between the first input terminal and the second input terminal of the first power unit. A second capacitor is connected between the first input terminal and the second input terminal of the second power unit.

[0060] In the first mode, the first capacitor and the second capacitor are connected in parallel. The input voltage charges both capacitors, raising their voltages to a first voltage value. In the second mode, the first capacitor and the second capacitor are connected in series. The input voltage charges both capacitors, raising their voltages to half of a second voltage value.

[0061] According to embodiments of this application, the first capacitor and the second capacitor can absorb fluctuations in the input voltage, making the input voltage more stable, and enabling the first power unit and the second power unit to operate continuously, stably, and controllably.

[0062] In one example, the first capacitor and the second capacitor can be polarized capacitors. For example... Figure 4 As shown, the first capacitor can be a first polarity capacitor C1, connected between the first input terminal D11 and the second input terminal D12 of the first power unit 12_1. The positive terminal of the first polarity capacitor C1 is connected to the first input terminal D11 of the first power unit 12_1, and the negative terminal of the first polarity capacitor C1 is connected to the second input terminal D12 of the first power unit 12_1. The second capacitor can be a second polarity capacitor C2, connected between the first input terminal D21 and the second input terminal D22 of the second power unit 12_2. The positive terminal of the second polarity capacitor C2 is connected to the first input terminal D21 of the second power unit 12_2, and the negative terminal of the second polarity capacitor C2 is connected to the second input terminal D22 of the second power unit 12_2.

[0063] In the first mode, the positive terminal of the first polarity capacitor C1 can be connected to the positive terminal of the DC voltage Vdd via a first voltage terminal, and the negative terminal of the first polarity capacitor C1 can be connected to the negative terminal of the DC voltage Vdd via a second voltage terminal. Similarly, the positive terminal of the second polarity capacitor C2 can be connected to the positive terminal of the DC voltage Vdd via a first voltage terminal, and the negative terminal of the second polarity capacitor C2 can be connected to the negative terminal of the DC voltage Vdd via a second voltage terminal. The first polarity capacitor C1 and the second polarity capacitor C2 are connected in parallel to receive the input voltage. In the second mode, the positive terminal of the first polarity capacitor C1 can be connected to the positive terminal of the DC voltage Vdd via a first voltage terminal, and the negative terminal of the first polarity capacitor C1 can be connected to the positive terminal of the second polarity capacitor C2. The negative terminal of the second polarity capacitor C2 is connected to the negative terminal of the DC voltage Vdd via a second voltage terminal. The first polarity capacitor C1 and the second polarity capacitor C2 are connected in series to receive the input voltage and share the input voltage equally.

[0064] According to an embodiment of this application, the control module is configured to control the first switch and the second switch to be turned on and the third switch to be turned off in response to the input voltage having a first voltage value; and to control the first switch and the second switch to be turned off and the third switch to be turned on in response to the input voltage having a second voltage value higher than the first voltage value.

[0065] According to an embodiment of this application, the control module can control the first switch, the second switch, and the third switch to be turned on and off through their respective control terminals. By controlling the first switch and the second switch to be turned on and the third switch to be turned off, the switching module can enter the first mode. By controlling the first switch and the second switch to be turned off and the third switch to be turned on, the switching module can enter the second mode.

[0066] like Figure 4 As shown, in response to an input voltage having a first voltage value, the control module controls the tenth transistor switch Q10, the eleventh transistor switch Q11, and the twelfth transistor switch Q12 to sequentially turn on and turn off the twelfth transistor switch Q12 via their respective control terminals. In one example, the control module first detects whether the twelfth transistor switch Q12 is in an off state. If it determines that the twelfth transistor switch Q12 is in a closed state, it turns off the twelfth transistor switch Q12. The first polarity capacitor C1 and the second polarity capacitor C2 are connected in parallel to receive the input voltage. The input voltage charges the first polarity capacitor C1 and the second polarity capacitor C2 respectively, raising them to the first voltage value.

[0067] The control module responds to an input voltage having a second voltage value higher than the first voltage value by controlling the control terminals of the tenth transistor switch Q10, the eleventh transistor switch Q11, and the twelfth transistor switch Q12 to open and close the latter. In one example, the control module first detects whether the eleventh transistor switch Q11 and the twelfth transistor switch Q12 are in an open state. If it determines that the eleventh transistor switch Q11 and the twelfth transistor switch Q12 are in a closed state, it opens the latter. The first polarity capacitor C1 and the second polarity capacitor C2 are connected in parallel to receive the input voltage. The input voltage charges the first polarity capacitor C1 and the second polarity capacitor C2 respectively, raising them to the first voltage value. The first polarity capacitor C1 and the second polarity capacitor C2 are connected in series to receive the input voltage. The input voltage charges the first polarity capacitor C1 and the second polarity capacitor C2 respectively, raising the first polarity capacitor C1 and the second polarity capacitor C2 to half of the second voltage value.

[0068] According to an embodiment of this application, the switching circuit further includes a fourth switch. The fourth switch is connected between the first voltage terminal and the first input terminal of the first power unit or the first input terminal of the second power unit, and the control terminal of the fourth switch is connected to the control module. The control module is also used to turn on the fourth switch after controlling the switching circuit to enter the first mode or the second mode.

[0069] According to an embodiment of this application, the fourth switch can serve as the master switch of the switching circuit. After the control module controls the switching circuit to enter the first mode or the second mode, the fourth switch is turned on, so that the switching circuit provides the input voltage to the first power unit and the second power unit respectively in the first mode or the second mode.

[0070] In one embodiment, the fourth switch may be a semiconductor device switch, such as a transistor switch. Figure 4 As shown, the fourth switch can be the ninth transistor switch Q9. The ninth transistor switch Q9 is connected to the first voltage terminal P1 and the first input terminal D11 of the first power unit 12_1 and the first input terminal D21 of the second power unit 12_2. The control terminal of the ninth transistor switch Q9 is connected to the control module.

[0071] In one example, in response to a first voltage value of 400V, the control module controls the switching circuit 13 to enter a first mode. Then, it turns on the ninth transistor switch Q9, and the first polarized capacitor C1 and the second polarized capacitor C2, connected in parallel, receive the input voltage. The input voltage charges the first polarized capacitor C1 and the second polarized capacitor C2, raising their voltage to 400V. In response to a second voltage value of 800V, the control module controls the switching circuit 13 to enter a second mode. Then, it turns on the ninth transistor switch Q9, and the first polarized capacitor C1 and the second polarized capacitor C2, connected in series, receive the input voltage. The input voltage charges the first polarized capacitor C1 and the second polarized capacitor C2, raising their voltage to 400V, which is half the second voltage value.

[0072] Therefore, the power module in this embodiment of the application achieves compatibility with 400V DC power supply and 800V DC power supply through power unit, switching circuit and control module, effectively improving the adaptability and reusability of the power module.

[0073] In one embodiment, the 5kW DC-DC step-down module 11 may include two identical 400V to 54V power units. The first power unit 12_1 and the second power unit 12_2 may be high power density power conversion modules for 400V to 54V, which can convert the received 400V voltage into a 54V output voltage for powering the load 80.

[0074] The input terminals of the first power unit 12_1 and the second power unit 12_2 achieve compatibility with 400V and 800V input power supplies through mode switching via a switching circuit. The first power unit 12_1 and the second power unit 12_2 can employ a cellular resonant bridge topology. This cellular resonant bridge topology uses symmetrical output rectification with a center tap to ensure that the outputs of the first power unit 12_1 and the second power unit 12_2 are in parallel when in output mode.

[0075] like Figure 4 As shown, the power module may further include a third capacitor C3 and a fourth capacitor C4. The third capacitor C3 is connected between the first output terminal D13 and the second output terminal D14 of the first power unit 12_1. The fourth capacitor C4 is connected between the first output terminal D23 and the second output terminal D24 of the second power unit 12_2. The third capacitor C3 and the fourth capacitor C4 are connected in parallel to output a 54V output voltage to power the load 80.

[0076] In one embodiment, each power unit can be an isolated DC-DC converter circuit composed of two LLC resonant converters connected in parallel and synchronous rectification. The isolated DC-DC converter circuit can convert the received 400V voltage into a 54V output voltage for powering the load through high-frequency isolation conversion. In the LLC resonant converter, the first L represents the resonant inductor, the second L represents the magnetizing inductor, and C represents the resonant capacitor.

[0077] Figure 5 A schematic diagram of a power unit according to an embodiment of this application is shown.

[0078] like Figure 5 As shown, the power unit includes an input side, a first half-bridge inverter circuit, a first transformer, a second half-bridge inverter circuit, a second transformer, a first synchronous rectifier circuit, a second synchronous rectifier circuit, and an output side.

[0079] The input side of the power unit may include a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an eighth capacitor C8, which are connected between the first input terminal D1 and the second input terminal D2 of the power unit. These capacitors can divide the 400V voltage received by the power unit, distributing it evenly across the first and second half-bridge inverter circuits. The first and second half-bridge inverter circuits operate in parallel.

[0080] The first half-bridge inverter circuit includes a first transistor switch Q1, a second transistor switch Q2, a ninth capacitor C9, and a first transformer resonant inductor Lr1 and a first transformer magnetizing inductor Lm1. The first transistor switch Q1 and the second transistor switch Q2 are alternately turned on, generating a high-frequency square wave voltage at their connection point. This high-frequency square wave voltage drives the resonant cavity composed of the ninth capacitor C9, the first transformer resonant inductor Lr1, and the first transformer magnetizing inductor Lm1 to operate, generating an approximately sinusoidal resonant current. This resonant current flows through the primary winding of the first transformer, coupling the high-frequency AC energy of the primary winding to the secondary winding, inducing a high-frequency voltage in the secondary winding.

[0081] The first synchronous rectifier circuit includes a fifth transistor switch Q5 and a sixth transistor switch Q6. The high-frequency voltage of the first transformer can drive the fifth transistor switch Q5 and the sixth transistor switch Q6 to be synchronously turned on or off, converting the high-frequency voltage into pulsating DC.

[0082] The second half-bridge inverter circuit includes a third transistor switch Q3, a fourth transistor switch Q4, a tenth capacitor C10, a second transformer resonant inductor Lr2, and a second transformer magnetizing inductor Lm2. The third transistor switch Q3 and the fourth transistor switch Q4 are alternately turned on, generating a high-frequency square wave voltage at their connection point. This high-frequency square wave voltage drives the resonant cavity composed of the tenth capacitor C10, the second transformer resonant inductor Lr2, and the second transformer magnetizing inductor Lm2, generating an approximately sinusoidal resonant current. This resonant current flows through the primary winding of the second transformer, coupling the high-frequency AC energy of the primary winding to the secondary winding, inducing a high-frequency voltage in the secondary winding.

[0083] The second synchronous rectifier circuit includes a seventh transistor switch Q7 and an eighth transistor switch Q8. The high-frequency voltage of the second transformer can drive the seventh transistor switch Q7 and the eighth transistor switch Q8 to simultaneously turn on or off, converting the high-frequency voltage into pulsating DC.

[0084] The output side of the power unit may include an output filter capacitor C11, which is connected to the first output terminal D3 and the second output terminal D4 of the power unit. The pulsating DC from the first and second synchronous rectifier circuits is filtered by the output filter capacitor C11, resulting in a stable low-voltage DC output to supply the load of the power unit.

[0085] According to embodiments of this application, such as Figure 3 As shown, the power supply module also includes a heat dissipation module 70. The heat dissipation module 70 is connected to the control module 30 and is used to perform heat dissipation operations under the control of the control module 30. The auxiliary power supply module 40 can generate internal power for the power supply module when either the first voltage or the second voltage is supplied, and the auxiliary power supply module 40 can supply power to the heat dissipation module 70 (not shown in the figure).

[0086] According to an embodiment of this application, the heat dissipation module 70 may be an air-cooled heat dissipation module, which includes a fan and a heat sink. The air-cooled heat dissipation module can quickly remove heat from the heat sink by forcibly driving airflow through the gaps in the heat sink by the fan.

[0087] According to embodiments of this application, the control module is further configured to perform hot-plug control on one or more power modules in response to hot-plugging of one or more power modules among a plurality of power modules.

[0088] According to embodiments of this application, hot-swapping refers to inserting or removing a power module while it is energized. Each power module supports hot-swapping to facilitate online maintenance and replacement without interrupting power module operation, further improving power module stability. In one example, the control module can also detect the transistor switches or the status of each power unit of one or more power modules in response to their insertion; and can control the switching of the operating modes of one or more power modules in response to their removal, so that the output power of other power modules can meet the load requirements.

[0089] According to embodiments of this application, the power module further includes a base plate and a side plate. The side plate can serve as the power backplane of the power module, and the base plate can serve as the main backplane of the power module.

[0090] The base plate extends along a first direction, and multiple power modules, an input module, a control module, and an auxiliary power supply module are located on one side of the base plate. A side plate is disposed on one side of the base plate and extends along a second direction. Multiple power modules are disposed on one side of the side plate, extend along the first direction, and are stacked along the second direction. The multiple power modules are electrically connected to the control module through the side plate.

[0091] According to embodiments of this application, the overall circuit connection and physical layout design of the power module are inseparable. Based on a reasonable physical layout, multiple power modules, input modules, control modules, and auxiliary power supply modules can be compactly arranged in one space. Multiple power modules are stacked along a second direction on one side of the side plate and can be connected to the base plate through the side plate, saving space, achieving a compact layout, and minimizing the size of the power module to increase power density by reducing volume.

[0092] Figure 6 A schematic side view of a power module according to another embodiment of this application is shown.

[0093] Figure 7 A schematic diagram showing a rear view of a power module according to another embodiment of this application is illustrated.

[0094] like Figure 6 As shown, the main power module can include 3+1 power modules. The input module can be an ATS dual-input module. In one example, the first direction can be... Figure 6 The horizontal direction in the middle, the second direction can be Figure 6 The vertical direction is as follows. The base plate extends horizontally, with the main power module and ATS dual-input module located on one side of the base plate. The control module and auxiliary power supply module are also located on one side of the base plate. The control module and auxiliary power supply module are partially obscured. Figure 6 Not shown in the image.

[0095] The side plate is located on one side of the base plate and extends vertically. Multiple power modules of the main power module are located on one side of the side plate, extending horizontally and stacked vertically. Figure 7 From Figure 6 The rear view from the left. (Example) Figure 7 As shown, Figure 7 The upper part is the main power module, and multiple power modules of the main power module are stacked vertically. Figure 7 The lower part includes two first input connectors, which can be connected to the first voltage and the second voltage respectively. Figure 7 The lower part also includes two locking handles, which are mechanical handles with integrated locking functions to secure the power modules. Multiple power modules can have the same size, be arranged in a plate-like structure, and be stacked in a plug-in manner.

[0096] According to an embodiment of this application, the power module further includes an input filtering module and an output filtering module, wherein the input module, the input filtering module and a plurality of power modules are disposed on a first side of the side plate, and the output filtering module is disposed on a second side of the side plate opposite to the first side.

[0097] According to an embodiment of this application, the input filtering module and the output filtering module are respectively arranged on both sides of the side plate, which can isolate the input filtering module and the output filtering module, reduce the possible mutual interference between the input filtering module and the output filtering module, and also facilitate the differentiation between the input filtering module and the output filtering module.

[0098] like Figure 6 As shown, the input filtering module can be an EMI filtering module. Multiple power modules of the ATS dual-input module, EMI filtering module, and main power module are arranged on the first side of the side panel. Figure 6 The output filter module is located on the left side of the middle side panel, opposite to the first side. Figure 6 (Right side of the middle side panel).

[0099] According to an embodiment of this application, the power module further includes a first input connector and a first output connector, wherein the first input connector is located on the side of the input module away from the side plate, and the first output connector is located on the side of the output filter module away from the side plate.

[0100] According to an embodiment of this application, in the server, the first voltage source and the second voltage source are external to the server, while the load is located inside the server. The first input connector is adjacent to the input module and can be located on the input side of the power module, connecting to the first voltage source and the second voltage source. The first output connector is adjacent to the output filter module and can be located on the output side of the power module, connecting to the load. Placing the first input connector and the first output connector on the input side and the output side of the power module, respectively, reduces the need for left-hand wiring and further optimizes the space design.

[0101] like Figure 6 As shown, the first input connector is located on the side of the ATS dual input module away from the side plate, and the first output connector is located on the side of the output filter module away from the side plate.

[0102] According to an embodiment of this application, the first input connector, the input module, and the input filter module are located between the plurality of power modules and the base plate.

[0103] According to an embodiment of this application, the first input connector, input module, and input filter module are located below the multiple power modules, and do not affect the insertion and removal of the multiple power modules from the side panel.

[0104] like Figure 6 As shown, the first input connector, the ATS dual-input module, and the EMI filter module are located between multiple power modules and the base plate.

[0105] According to an embodiment of this application, the power module further includes a heat dissipation module located on the second side of the side plate, and the output filtering module and the first output connector are located between the heat dissipation module and the base plate.

[0106] According to an embodiment of this application, in order to improve heat dissipation efficiency, the side plate can be designed as a hollow structure.

[0107] like Figure 6 As shown, in one example, the heat dissipation module can be implemented in the form of a heat dissipation unit, such as an air-cooled heat dissipation unit, which is located on the right side of the side plate, and the output filter module and the first output connector are located between the heat dissipation unit and the base plate.

[0108] According to an embodiment of this application, the power module includes a first power unit, a second power unit, and a switching circuit, wherein the first power unit and the second power unit are arranged side by side along a third direction.

[0109] According to an embodiment of this application, the first power unit and the second power unit are arranged side by side along a third direction to further save space.

[0110] Figure 8 A schematic top view of a plurality of power modules according to another embodiment of this application is shown.

[0111] Figure 9 A schematic perspective view of a plurality of power modules according to another embodiment of this application is shown.

[0112] In one example, the first power unit and the second power unit can be 400V / 54V modules. The power module includes two 400V / 54V modules arranged side by side along a third direction. In this embodiment, the length of the power module can be 100mm and the width can be 70mm. Figure 8 As shown. In one example, the multiple power modules can be four 5kW DC-DC step-down modules, which are disposed on one side of the side panel, extending along a first direction and stacked along a second direction, as shown. Figure 9 As shown.

[0113] According to an embodiment of this application, the power module further includes a power backplane, and the power supply module further includes an input filtering module and an output filtering module. The power module is connected to the control module, the input filtering module, and the output filtering module through a second input connector and a second output connector on the power backplane.

[0114] According to embodiments of this application, such as Figure 8 As shown, the power module also includes a power backplane, which includes input / output connectors, including a second input connector and a second output connector. For example, the power module can connect to the control module via the second input connector on the power backplane to receive control commands from the control module; the power module can also connect to the control module via the second output connector on the power backplane to allow the control module to obtain the state of the transistor switches or the operating state of the power units on the power module. For example, the power module can connect to the input filter module via the second input connector on the power backplane to receive the filtered input voltage; the power module can also connect to the output filter module via the second output connector on the power backplane to allow the output filter module to filter the output voltage.

[0115] like Figure 8 and Figure 9 As shown, the side panel includes multiple side panel connectors, and multiple power modules are connected to these connectors via their respective input / output connectors. Each power module is connected to the control module, input filter module, and output filter module via its own input / output connector and corresponding side panel connector.

[0116] In one embodiment, multiple power modules of the main power module can be plugged in and out like a hard drive through the front panel. This plugging and unplugging involves hot-plugging, so the entire process can be as follows: pressing the bracket button of the main power module pops out the handle, pulling out the main power module. The input / output connectors at the rear of the main power module are disconnected from the side panel of the power module first through the shortest power-on pin during the pulling action. The control module of the power module detects the loss of the power-on signal of the plugged-out main power module and can actively shut off the input and output power supply of the main power module. For example, actively shutting off the ninth transistor switch Q9, the tenth transistor switch Q10, the eleventh transistor switch Q11, and the twelfth transistor switch Q12 of the switching circuit. Figure 4 and Figure 5 As shown.

[0117] According to an embodiment of this application, both the first voltage and the second voltage are DC voltages, and the rated power of the multiple power modules is 5KW, N=3, X=1.

[0118] In related technologies, dual inputs use AC voltage, limiting the maximum output power of the power module to only 3600W. In this application's embodiment, both the first and second input voltages are DC voltages. By stepping down the DC voltage, the output power of a single power module can be increased to 5000W. In some embodiments, the power module can be a 5kW DC-DC step-down module. The rated power of a 5kW DC-DC step-down module is 5kW. If one 5kW DC-DC step-down module does not fail, four 5kW DC-DC step-down modules can be connected in parallel to supply power and share the load current of the power module. The output power of each 5kW DC-DC step-down module is less than 5kW. For example, if the load power requirement of the power module is 15kW, and four 5kW DC-DC step-down modules are connected in parallel to supply power and share the load current of the power module, the output power of each 5kW DC-DC step-down module is 3.75kW, which is lower than the rated power. In the event of a failure of one 5KW DC step-down module, the control module controls the three 5KW DC step-down modules that are not faulty to supply power in parallel and share the load current of the power module equally. The output power of each 5KW DC step-down module is 5KW to meet the load power requirements of the 15KW power module.

[0119] According to the embodiments of this application, by combining the fact that both the first and second voltages are DC voltages, the output power of a single power module can be increased to 5000W, the rated power of multiple power modules is 5KW, and the power modules have a 3+1 redundancy design. Under the size of the power module in the embodiments of this application, by increasing the output power of the power modules, the output power of a single power module is increased, so as to further increase the power density from the aspect of increasing the output power.

[0120] According to embodiments of this application, the length of the power module is in the range of 170mm to 200mm, the width of the power module is in the range of 60mm to 80mm, and the height of the power module is in the range of 70mm to 90mm.

[0121] like Figure 6 and Figure 7 As shown, the length direction of the power module can be in a first direction, the width direction can be in a third direction, and the height direction can be in a second direction perpendicular to the first and third directions. In one embodiment, the length of the power module can be 185mm, the width can be 73.5mm, and the height can be 80mm. The volume of the power module is approximately 66.37 in³, and the maximum power of the main power module is 20KW, resulting in a power density of 301W / in³ for the power module in this embodiment. Considering redundant power supply (3+1), this size can also achieve 226W / in³.

[0122] According to embodiments of this application, the power module can be a high-power-density server power supply. Firstly, through a standardized modular design, the high-power-density server power supply is upgraded based on a standard-size interface, developing a standard DC-DC step-down power module. By integrating a self-adaptive design for both 400V and 800V input voltages, the reusability of the power module development can be effectively improved. The multi-input compatibility design makes the selection of server power supplies more convenient, eliminating the need to change power adapters for different power supply environments. With the standard modular design, the design of input modules, input filtering modules, output filtering modules, and heat dissipation modules (excluding the main power module) can be reused to meet different power requirements, further improving the power module's reusability and effectively increasing the power platform development speed.

[0123] The power module in this application embodiment is designed based on an overall architecture that allows a single power module to support dual inputs and 3+1 redundant power supply in the case of dual input power supply. This enables a single power module to support power supply redundancy and module redundancy while simultaneously improving the power density of the server's overall power supply module.

[0124] Figure 10 A schematic diagram illustrating the principle of voltage conversion according to an embodiment of this application is shown.

[0125] The power module's base plate can be a main backplane, and the side plates can be the backplanes of the power modules. The control module and auxiliary power supply module can be mounted on the base plate, which connects to the side plates, which in turn connect to multiple power modules. The input module and input filter module can be connected to the control module and auxiliary power supply module via the base plate. The input module and input filter module can also connect to multiple power modules via the base plate and side plates. Multiple power modules can be connected to the output filter module via the side plates and base plate.

[0126] like Figure 10 As shown, in one example, the control module and auxiliary power supply module can be mounted on the base plate 301. The base plate 301 is connected to the EMI filter module 51, the side plate 302, and the output filter module 60. The side plate 302 is connected to four 5kW DC step-down modules 11.

[0127] Input channel A can be either 800V or 400V DC, and input channel B can also be either 800V or 400V DC. That is, the first input voltage value is 400V, and the second input voltage value is 800V. After passing through the ATS dual-input module 21, only one power supply reaches the EMI filter module 51. The EMI filter module 51 uses the filtered power supply voltage as the input voltage for the four 5kW DC step-down modules 11, and connects it to the control module via the base plate 301.

[0128] With an input voltage of 400V DC, the 5kW DC step-down module 11 can output a 54V output voltage through the side plate 302, the base plate 301, and the output filter module 60. With an input voltage of 800V DC, the 5kW DC step-down module 11 can output a 54V output voltage through the side plate 302, the base plate 301, and the output filter module 60.

[0129] The power module of this application embodiment identifies the application compatibility requirements of different power supply environments in server power supply applications, primarily focusing on addressing the need for increased power density in high-voltage DC power supply applications. The entire design method of the power module in this application embodiment is based on a modular design approach. Dual-input switching enables a single power module to support two input power supplies. A 3+1 redundancy design for the main power module within the power module ensures that a single power module can meet both redundant power supply and module redundancy requirements. Furthermore, the multiple power units within the multiple power modules of the power module in this application embodiment, through hardware design architecture combined with different control strategies, can intelligently switch power supply modes for 800V DC power supply and 400V DC power supply environments. A 400V to 54V conversion module automatically adapts to both 400V and 800V power supply voltages. The multiple power units in this application embodiment employ a cellular resonant topology combined with switching circuits and switching software logic, enabling the power module to switch operating modes under different power supply voltages.

[0130] This application also provides an electronic device. The electronic device includes a power module according to embodiments of this application.

[0131] Figure 11 A schematic diagram of an electronic device according to an embodiment of this application is shown.

[0132] In one example, the electronic device could be a server. For example... Figure 11 As shown, the power module in this embodiment can be a high-power-density server power supply, which can be installed inside the server chassis. Figure 11 Image (a) shows a top view of a server according to an embodiment of this application. Figure 11 (b) in the text indicates from Figure 11 (a) is a side view of the server of this embodiment of the application, viewed from below. Figure 11 (c) in the text indicates from Figure 11 (a) is a side view of the server according to an embodiment of this application, viewed from the left. The power module of this embodiment improves power density and can adapt to the needs of servers developing towards miniaturization and high density.

[0133] According to the embodiments of this application, increasing the power density of the power module can reduce the space occupied by the device per unit power, which helps to miniaturize and lighten the design of electronic devices. At the same time, it can reduce the heat dissipation area and energy loss, improve energy conversion efficiency, enhance the module integration adaptability, meet the compact layout requirements of highly integrated electronic systems, reduce the overall hardware cost, and optimize the stability and reliability of device operation.

[0134] While ensuring high efficiency and reliability, by increasing switching frequency, adopting wide-bandgap semiconductors (such as GaN / SiC), and optimizing heat dissipation and packaging integration technologies, the size of power modules can be significantly reduced or the power output can be greatly increased within the same volume. This directly increases the computing density of server racks, reduces the space occupied per unit power and infrastructure costs, and at the same time promotes the development of power supply systems towards greater efficiency and compactness.

[0135] In one embodiment, the first power unit and the second power unit can be high power density power conversion modules of 400V to 54V, hereinafter referred to as Module 1 and Module 2. Through software design, based on the detection of input voltage and the state control of transistor switches, the system power-on and control switching circuit of the electronic device performs mode switching. The control module can continuously monitor external or internal power-on command signals. If no valid power-on command is detected, it is directly determined as "Power-on command not detected," and then the input abnormality protection mechanism is triggered to block subsequent processes and prevent the device from starting erroneously. If a valid power-on command is detected, the control module will immediately send an input voltage detection command to the control circuit. After the control circuit performs the detection, it feeds back the input voltage data to the control module. The control module judges according to the preset normal voltage range. Once the voltage exceeds the threshold, the input abnormality protection is immediately triggered. When the input voltage detection is qualified, the control module will enter the dual-voltage mode judgment stage, first reading the current state of the tenth transistor switch Q10, the eleventh transistor switch Q11, and the twelfth transistor switch Q12 to select the corresponding working mode.

[0136] Figure 12 A schematic diagram of the software design of an electronic device according to an embodiment of this application is shown.

[0137] like Figure 4 and Figure 12 As shown, the system did not receive a valid power-on command, which means that the preconditions for powering on were not met. At this time, the system will directly determine that the initial abnormality of the power-on process is not met, and then trigger the input abnormality protection to prevent the electronic device from starting without a command, so as to avoid safety problems such as erroneous operation and voltage disorder.

[0138] Once the system receives a valid power-on command, it will immediately enter the input voltage detection phase.

[0139] The system determines whether the input voltage is within the 400Vdc DC power supply range. If the input voltage is within the 400Vdc DC power supply range, it checks whether the twelfth transistor switch Q12 is off. If the twelfth transistor switch Q12 is not off, it is first turned off. If the twelfth transistor switch Q12 is off, the tenth transistor switch Q10 is first closed, followed by the eleventh transistor switch Q11. The system then determines whether the operating voltages of modules 1 and 2 are within the 400Vdc range. If the operating voltages of modules 1 and 2 are within the 400Vdc range, the ninth transistor switch Q9 is closed, and modules 1 and 2 enter the 400V input operating mode. If the operating voltages of modules 1 and 2 are not within the 400Vdc range, the input voltage detection is repeated.

[0140] If the input voltage is outside the 400Vdc DC power supply range, determine if the input voltage is within the 800Vdc DC power supply range. If the input voltage is within the 800Vdc DC power supply range, first check if the tenth transistor switch Q10 and the eleventh transistor switch Q11 are off. If the tenth transistor switch Q10 and the eleventh transistor switch Q11 are not off, first turn off the tenth transistor switch Q10 and the eleventh transistor switch Q11. If the tenth transistor switch Q10 and the eleventh transistor switch Q11 are off, close the twelfth transistor switch Q12. Determine if the operating voltage of module 1 and module 2 is within the 800Vdc range. If the operating voltage of module 1 and module 2 is within the 800Vdc range, close the ninth transistor switch Q9, and module 1 and module 2 enter the 800V input operating mode. If the operating voltage of module 1 and module 2 is not within the 800Vdc range, repeat the input voltage detection.

[0141] It should be noted that the abnormality handling mechanism is implemented throughout the entire process. Whether it is the input voltage detection before mode switching or the voltage detection during mode switching, if the voltage value of any link is not up to standard, the system will immediately trigger the corresponding protection mechanism, stop the current mode switching operation, and will not execute subsequent switch closing commands. This ensures that the electronic equipment will not malfunction due to abnormal voltage under any circumstances.

[0142] According to an embodiment of this application, in one example, the control module can be an MCU (Microcontroller Unit). The control module can drive the power conversion within the power module. For example, by controlling the ninth transistor switch Q9, it can control the voltage conversion of the power unit to start. It can also control the mode switching of the switching circuit through the tenth transistor switch Q10, the eleventh transistor switch Q11, and the twelfth transistor switch Q12, thereby realizing the determination of power-on and power-off of electronic devices, the determination of input A and input B, the switching between 800V and 400V power supply modes, the detection of input voltage values, sampling protection, and communication with the host computer.

[0143] The design concept of the technical solution provided in this application embodiment can also be extended to the design and development process of dedicated power supply modules under the same power supply environment, and can provide reliable technical reference for the architecture construction and performance optimization of such dedicated power supply modules.

[0144] Those skilled in the art will understand that the features described in the various embodiments of this application can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in this application. In particular, the features described in the various embodiments of this application can be combined and / or combined in various ways without departing from the spirit and teachings of this application. All such combinations and / or combinations fall within the scope of this application.

[0145] The embodiments of this application have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of this application. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. Without departing from the scope of this application, those skilled in the art can make various substitutions and modifications, all of which should fall within the scope of this application.

Claims

1. A power module, characterized in that, The power module includes: Multiple power modules, each power module is used to convert the input voltage into the output voltage, and the output power of each power module during operation is less than or equal to the rated power; An input module is connected to multiple power modules. The input module is used to receive a first voltage and a second voltage, and to provide the first voltage as the input voltage to the multiple power modules respectively. In response to a fault in the first voltage, the second voltage is provided as the input voltage to the multiple power modules respectively. The control module is connected to multiple power modules. The control module is used to control the multiple power modules to convert the input voltage into the output voltage. In response to the failure of less than or equal to X power modules, the control module controls the remaining power modules to supply power. The total number of power modules is X+N, where X and N are both positive integers. The sum of the rated power of the N power modules is equal to the planned load of the power supply module. The auxiliary power supply module is connected to the input module and is used to supply power to the input module.

2. The power module according to claim 1, characterized in that, The power module also includes: The input filtering module is connected between the input module and the input terminals of multiple power modules, and is used to filter the input voltage provided by the input module to the multiple power modules. The output filtering module is connected to the output terminals of multiple power modules and is used to filter the output voltage generated by the multiple power modules.

3. The power module according to claim 1, characterized in that, The power module includes: Multiple power units, each power unit is used to convert the received voltage into an output voltage for supplying power to the load; The switching circuit, connected to multiple power units, is used to receive input voltage. In the first mode, it provides the input voltage to the multiple power units respectively, and in the second mode, it divides the input voltage among the input terminals of the multiple power units. The control module is also used to: control the switching circuit to enter a first mode in response to the input voltage having a first voltage value, and control the switching circuit to enter a second mode in response to the input voltage having a second voltage value higher than the first voltage value.

4. The power module according to claim 3, characterized in that, Multiple power units include a first power unit and a second power unit; The switching circuit has a first voltage terminal and a second voltage terminal for receiving the input voltage, and the switching circuit is configured as follows: In the first mode, the first input terminal and the second input terminal of the first power unit are respectively connected to the first voltage terminal and the second voltage terminal, and the first input terminal and the second input terminal of the second power unit are respectively connected to the first voltage terminal and the second voltage terminal. In the second mode, the first input terminal of the first power unit is connected to the first voltage terminal, the second input terminal of the second power unit is connected to the second voltage terminal, and the second input terminal of the first power unit and the first input terminal of the second power unit are connected together.

5. The power module according to claim 4, characterized in that, The switching circuit includes: The first switch is connected between the second input terminal and the second voltage terminal of the first power unit; The second switch is connected between the first input terminal and the first voltage terminal of the second power unit; The third switch is connected between the second input terminal of the first power unit and the first input terminal of the second power unit. The control terminals of the first, second, and third switches are all connected to the control module.

6. The power module according to claim 5, characterized in that, The switching circuit also includes: The first capacitor is connected between the first input terminal of the first power unit and the second input terminal of the first power unit. The second capacitor is connected between the first input terminal of the second power unit and the second input terminal of the second power unit.

7. The power module according to claim 5, characterized in that, The control module is configured to: in response to the input voltage having a first voltage value, control the first switch and the second switch to be turned on, and the third switch to be turned off; in response to the input voltage having a second voltage value higher than the first voltage value, control the first switch and the second switch to be turned off, and the third switch to be turned on.

8. The power module according to claim 7, characterized in that, The switching circuit also includes: a fourth switch, connected to the first voltage terminal and the first input terminal of the first power unit or the first input terminal of the second power unit, and the control terminal of the fourth switch is connected to the control module; The control module is also used to turn on the fourth switch after the control switching circuit enters the first or second mode.

9. The power module according to claim 1, characterized in that, The power module also includes a heat dissipation module and a connection control module. The heat dissipation module is used to perform heat dissipation operations under the control of the control module.

10. The power module according to claim 1, characterized in that, The control module is also configured to: perform hot-plug control on the one or more power modules in response to hot-plugging of one or more power modules among a plurality of power modules.

11. The power module according to claim 1, characterized in that, The power module also includes: The base plate extends along the first direction, and multiple power modules, input modules, control modules and auxiliary power supply modules are located on one side of the base plate; A side plate is disposed on one side of the base plate and extends along a second direction. Multiple power modules are disposed on one side of the side plate, extend along a first direction, and are stacked along the second direction. The multiple power modules are electrically connected to the control module through the side plate.

12. The power module according to claim 11, characterized in that, The power module also includes an input filtering module and an output filtering module. The input module, the input filtering module, and multiple power modules are located on the first side of the side panel, and the output filtering module is located on the second side of the side panel opposite to the first side.

13. The power module according to claim 12, characterized in that, The power module also includes a first input connector and a first output connector. The first input connector is located on the side of the input module away from the side plate, and the first output connector is located on the side of the output filter module away from the side plate.

14. The power module according to claim 13, characterized in that, The first input connector, input module, and input filter module are located between multiple power modules and the base plate.

15. The power module according to claim 13, characterized in that, The power module also includes a heat dissipation module, which is located on the second side of the side plate. The output filter module and the first output connector are located between the heat dissipation module and the base plate.

16. The power module according to claim 11, characterized in that, The power module includes a first power unit, a second power unit, and a switching circuit. The first power unit and the second power unit are arranged side by side along a third direction.

17. The power module according to claim 16, characterized in that, The power module also includes a power backplane, and the power supply module also includes an input filter module and an output filter module. The power module is connected to the control module, the input filter module and the output filter module through the second input connector and the second output connector on the power backplane.

18. The power module according to any one of claims 1 to 17, characterized in that, Both the first and second voltage channels are DC voltages. The rated power of the multiple power modules is 5KW, N=3, X=1.

19. The power module according to any one of claims 1 to 17, characterized in that, The power module has a length ranging from 170mm to 200mm, a width ranging from 60mm to 80mm, and a height ranging from 70mm to 90mm.

20. An electronic device, characterized in that, Includes the power module as described in any one of claims 1 to 19.

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