Power supply module

Abstract

The invention provides a power supply module. The power supply module comprises a transformer and a first circuit board fixedly connected with a first wire outlet end of the transformer; the second circuit board is fixedly connected with a second wire outlet end of the transformer; the output terminal is respectively connected with the first circuit board and the second circuit board; the input element and the detection element are fixed on different circuit boards; the first group of power elements are fixed on the first circuit board, and the input end and the output end of the first group of power elements are respectively connected with the secondary side and the output terminal of the transformer; the second group of power elements is fixed on the second circuit board, and the input end and the output end of the second group of power elements are respectively connected with the secondary side and the output terminal of the transformer; the first circuit board and the second circuit board are oppositely arranged to form a heat dissipation air channel; the transformer is arranged at an inlet or an outlet of the heat dissipation air channel. According to the power supply module provided by the embodiment of the invention, the heat dissipation capability of the power supply module is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic devices, and in particular to a power supply module. Background Art

[0002] With the development of artificial intelligence (AI), the demand for computing power in application scenarios such as large-scale model training and complex algorithm calculations is growing exponentially, prompting data centers to continuously upgrade. As core equipment in data centers, servers face unprecedented challenges in their power supply systems, especially the increasing heat dissipation issues of server power supplies.

[0003] In existing technology, server power supplies are prone to transformer overheating during prolonged high-load operation, impacting power supply stability and service life. While installing cooling fans is a common cooling solution, it struggles to meet the actual cooling requirements of servers operating at high power and current. Therefore, improving the cooling structure of server power supplies and enhancing their performance has become a critical and pressing issue in this field. Summary of the Invention

[0004] In response to the problems in the prior art, embodiments of the present invention provide a power supply module, which can at least partially solve the problems in the prior art.

[0005] The present invention provides a power supply module, which includes: transformer; a first circuit board fixedly connected to the first output terminal of the transformer; a second circuit board fixedly connected to the second output terminal of the transformer; output terminals connected to the first circuit board and the second circuit board respectively; An input element is provided on the primary side of the transformer and a detection element is provided on the secondary side of the transformer, wherein the input element and the detection element are fixed on different circuit boards; a first group of power elements fixed to the first circuit board, wherein input ends of the first group of power elements are electrically connected to the secondary side of the transformer, and output ends of the first group of power elements are connected to the output terminal; a second group of power components fixed to the second circuit board, wherein input ends of the second group of power components are electrically connected to the secondary side of the transformer, and output ends of the second group of power components are connected to the output terminal; The first circuit board and the second circuit board are arranged opposite to each other to form a heat dissipation duct; the transformer is arranged at the inlet or outlet of the heat dissipation duct.

[0006] Furthermore, the input element includes a first inductor and a first capacitor, the first capacitor is connected to the first inductor, and the first inductor is connected to the primary output terminal of the transformer.

[0007] Furthermore, the first capacitor is a film capacitor or a ceramic capacitor.

[0008] Furthermore, the detection element includes a current detection unit, and the current detection unit is used to detect the secondary side output current of the transformer.

[0009] Furthermore, the number of elements included in the first group of power elements is the same as the number of elements included in the second group of power elements, and the types of elements included in the first group of power elements are the same as the types of elements included in the second group of power elements.

[0010] Furthermore, the first circuit board and the second circuit board are arranged in parallel.

[0011] Furthermore, the first group of power elements and the second group of power elements respectively include at least one element selected from the group consisting of a second capacitor, a third capacitor, a second inductor, and a rectifier switch.

[0012] Furthermore, the rectifier switch is a MOSFET switch or a diode.

[0013] Furthermore, the second capacitor is used for filtering, and the third capacitor is used for energy storage.

[0014] Furthermore, the transformer includes at least one group of sub-transformers, and each group of sub-transformers corresponds to the first group of power elements, the second group of power elements, the output terminal, the input element and the detection element.

[0015] The power supply module provided in an embodiment of the present application includes a transformer; a first circuit board fixedly connected to a first output terminal of the transformer; a second circuit board fixedly connected to a second output terminal of the transformer; output terminals connected to the first circuit board and the second circuit board, respectively; an input element provided on the primary side of the transformer and a detection element provided on the secondary side of the transformer, the input element and the detection element being fixed on different circuit boards; a first group of power elements fixed to the first circuit board, the input end of the first group of power elements being electrically connected to the secondary side of the transformer, and the output end of the first group of power elements being connected to the output terminal; a second group of power elements fixed to the second circuit board, the input end of the second group of power elements being electrically connected to the secondary side of the transformer, and the input end of the second group of power elements being connected to the output terminal; the first circuit board and the second circuit board are arranged relative to each other to form a heat dissipation duct; the transformer is arranged at the inlet or outlet of the heat dissipation duct, and by forming the heat dissipation duct between the first circuit board and the second circuit board and outputting the supply current respectively through the first circuit board and the second circuit board, the heat dissipation area is increased and the air flow is accelerated while reducing the current flowing through the circuit boards, thereby improving the heat dissipation capacity of the power supply module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of heat dissipation of a power supply module in the prior art.

[0018] Figure 2 This is a heat dissipation diagram of a power supply module provided in one embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of a power supply module provided in one embodiment of the present application.

[0020] Figure 4 This is a front structural diagram of a power supply module provided in one embodiment of the present application.

[0021] Figure 5 This is a bottom-up structural diagram of a power supply module provided in one embodiment of the present application.

[0022] Figure 6 This is a first side structural schematic diagram of a power supply module provided in one embodiment of the present application.

[0023] Figure 7 This is a second side structural schematic diagram of a power supply module provided in one embodiment of the present application.

[0024] Figure 8 This is a schematic diagram of the circuit structure of a power supply module provided in one embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. Here, the schematic embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other in any way. The acquisition, storage, use, processing, etc. of data in the technical solutions in this application comply with the relevant provisions of laws and regulations. The user information in the embodiments of this application is obtained through legal and compliant channels, and the acquisition, storage, use, processing, etc. of user information are authorized and agreed by the customer.

[0026] In order to facilitate understanding of the technical solution provided by this application, the relevant contents of the technical solution of this application are first explained below.

[0027] With the advancement of power supply technology, modular power supplies have gained widespread adoption in the power supply industry due to their significant advantages, including plug-and-play functionality, easy assembly, and flexible replacement. Modular power supplies refer to systems that can be composed of individual functional modules, such as EMC (Electro Magnetic Compatibility) modules, AC / DC (Alternating Current / Direct Current) modules, and DC / DC (Direct Current / Direct Current) modules. Modular power supplies can also be composed of individual functional units within these modules. Common types include AC / DC and DC / DC modules. The core advantage of modular power supplies lies in their standardized design and compatible architecture, enabling flexible, plug-and-play configuration. Users can combine power supply modules in series or parallel to create diverse power supply solutions based on varying power levels and voltage requirements.

[0028] Figure 1 This is a schematic diagram of heat dissipation of a power supply module in the prior art, such as Figure 1As shown, the fan is located on one side of the power supply module. Airflow flows from left to right, primarily above and below the printed circuit board (PCB), dissipating heat. Because power semiconductor components (hereafter referred to as power components) are concentrated on a single PCB, the PCB generates significant heat.

[0029] Figure 2 FIG. 1 is a heat dissipation diagram of a power supply module provided in an embodiment of the present application. Figure 2 As shown, the fan is located on one side of the power supply module, and the airflow is from left to right. However, due to the arrangement of the first printed circuit board (PCB1) and the second printed circuit board (PCB2), an air duct is formed between PCB1 and PCB2. When the air flows through this area, the flow rate is accelerated, which is conducive to removing heat. In addition, PCB1 and PCB2 respectively carry the power components of the secondary output end of the transformer, so that the current flowing through PCB1 and PCB2 is relatively Figure 1 The current flowing through the PCB is small. In addition, the airflow can flow on the upper and lower sides of PCB1 and PCB2 respectively, which can reduce the current flowing through the printed circuit boards while increasing the heat dissipation area, thereby improving the heat dissipation effect of the power supply module.

[0030] Figure 3 is a schematic diagram of the three-dimensional structure of a power supply module provided in one embodiment of the present application. Figure 4 This is a front structural diagram of a power supply module provided in one embodiment of the present application. Figure 5 1 is a bottom view structural diagram of a power supply module provided in one embodiment of the present application. Figure 6 This is a first side structural diagram of a power supply module provided in one embodiment of the present application. Figure 7 : is a second side view structural diagram of a power supply module provided in an embodiment of the present application, such as Figures 3 to 7 As shown, the power supply module provided in the embodiment of the present application includes a transformer 1, a first circuit board 2, a second circuit board 3, a first group of power components, a second group of power components and an output terminal 4, wherein: Transformer 1; A first circuit board 2 fixedly connected to a first output terminal of the transformer 1; A second circuit board 3 fixedly connected to the second output terminal of the transformer 1; Output terminals 4 connected to the first circuit board 2 and the second circuit board 3 respectively; An input element is provided on the primary side of the transformer 1 and a detection element is provided on the secondary side of the transformer 1, wherein the input element and the detection element are fixed on different circuit boards; A first group of power components fixed to the first circuit board 2, wherein the input end of the first group of power components is electrically connected to the secondary side of the transformer 1, and the output end of the first group of power components is connected to the output terminal; A second group of power components fixed to the second circuit board 3 , wherein the input ends of the second group of power components are electrically connected to the secondary side of the transformer 1 , and the output ends of the second group of power components are connected to the output terminal 4 ; The first circuit board 2 and the second circuit board 3 are arranged opposite to each other to form a heat dissipation duct; the transformer 1 is arranged at the inlet or outlet of the heat dissipation duct.

[0031] Specifically, the first circuit board 2 and the second circuit board 3 are arranged relative to each other to form a heat dissipation duct, which can speed up the flow rate of air flowing through the heat dissipation duct and is conducive to accelerating heat dissipation. The transformer 1 is arranged between the first circuit board 2 and the second circuit board 3, and is located at the inlet or outlet of the heat dissipation duct, which is conducive to heat dissipation. The first circuit board 2 is electrically connected to the transformer 1 through the first outlet pin of the secondary side of the transformer 1, and the first outlet terminal of the transformer 1 can be fixed to the first circuit board 2, for example, the first outlet terminal can be fixed to the first circuit board 2 by welding or plugging. The second circuit board 3 is electrically connected to the transformer 1 through the second outlet terminal of the secondary side of the transformer 1, and the second outlet terminal of the secondary side of the transformer 1 can be fixed to the second circuit board 3, for example, the second outlet terminal can be fixed to the second circuit board 3 by welding or plugging. The first circuit board 2 and the second circuit board 3 are respectively connected to the output terminal 4.

[0032] The electrical components connected to the transformer 1 are arranged on the first circuit board 2 and the second circuit board 3, respectively, thereby distributing the heat generated by the power components connected to the transformer 1 to the two circuit boards, which facilitates heat dissipation. For example, the input components on the primary side of the transformer 1 are arranged on the first circuit board 2, and the detection components on the secondary side of the transformer are arranged on the second circuit board 3; alternatively, the detection components on the secondary side of the transformer 1 are arranged on the first circuit board 2, and the input components on the primary side of the transformer 1 are arranged on the second circuit board 3. For example, the power components connected to the secondary side of the transformer 1 are evenly distributed between the first circuit board 2 and the second circuit board 3. The detection components may include a current detection unit, which is configured according to actual needs and is not limited in this embodiment of the present invention. The input components may include a first inductor and a first capacitor, which are configured according to actual needs and are not limited in this embodiment of the present invention. The power components arranged on the first circuit board 2 are the first group of power components, and the power components arranged on the second circuit board 3 are the second group of power components. The first group of power components may include a second capacitor, a third capacitor, a second inductor, a rectifier switch, and other devices, which are configured according to actual needs and are not limited in this embodiment of the present application. The second group of power elements may include a second capacitor, a third capacitor, a second inductor, a rectifier switch and other devices, which are configured according to actual needs and are not limited in the embodiments of the present application.

[0033] The secondary side of transformer 1 is electrically connected to the input of the first and second groups of power elements, respectively. The output of the first and second groups of power elements is electrically connected to output terminal 4, and the input of the second group of power elements is electrically connected to output terminal 4. The output current of the secondary side of transformer 1 passes through the first and second groups of power elements, respectively, and is aggregated to output terminal 4 to provide the supply current. This reduces the current flowing through the circuit boards and distributes heat across the two circuit boards for dissipation. The first end of output terminal 4 can be secured to the first circuit board 2 by plugging, for example, while the second end of output terminal 4 can be secured to the second circuit board 3 by plugging, for example, or by other means.

[0034] The power supply module provided in an embodiment of the present application includes a transformer; a first circuit board fixedly connected to a first output terminal of the transformer; a second circuit board fixedly connected to a second output terminal of the transformer; output terminals connected to the first circuit board and the second circuit board, respectively; an input element provided on the primary side of the transformer and a detection element provided on the secondary side of the transformer, the input element and the detection element being fixed on different circuit boards; a first group of power elements fixed to the first circuit board, the input end of the first group of power elements being electrically connected to the secondary side of the transformer, and the output end of the first group of power elements being connected to the output terminal; a second group of power elements fixed to the second circuit board, the input end of the second group of power elements being electrically connected to the secondary side of the transformer, and the input end of the second group of power elements being connected to the output terminal; the first circuit board and the second circuit board are arranged relative to each other to form a heat dissipation duct; the transformer is arranged at the inlet or outlet of the heat dissipation duct, and by forming the heat dissipation duct between the first circuit board and the second circuit board and outputting the supply current respectively through the first circuit board and the second circuit board, the heat dissipation area is increased and the air flow is accelerated while reducing the current flowing through the circuit boards, thereby improving the heat dissipation capacity of the power supply module.

[0035] like Figure 3 、 Figure 6 and Figure 7 As shown, based on the above embodiments, further, the input element includes a first inductor 6 and a first capacitor 6, the first capacitor 5 is connected to the first inductor 6, and the first inductor 6 is connected to the primary output terminal of the transformer 1.

[0036] Specifically, the first inductor 6 and the first capacitor 5 can be soldered on the first circuit board 2, and accordingly, the primary output terminal of the transformer 1 is soldered on the first circuit board 2, and the first inductor 6 is electrically connected to the transformer 1 through the primary output terminal of the transformer 1; or, the first inductor 6 and the first capacitor 5 are soldered on the second circuit board 3, and accordingly, the primary output terminal of the transformer 1 is soldered on the second circuit board 3, and the first inductor 6 is electrically connected to the transformer 1 through the primary output terminal of the transformer 1.

[0037] The first inductor 6 and the first capacitor 5 can form an LC resonant circuit, which can be used to implement soft switching. The specific number of the first inductor 6 and the first capacitor 5 is selected according to actual needs and is not limited in the embodiment of the present application.

[0038] On the basis of the above embodiments, further, the first capacitor 5 is a film capacitor or a ceramic capacitor.

[0039] like Figure 3As shown, the detection element includes a current detection unit 7, which is used to detect the secondary output current of the transformer 1. The current detection unit 7 is arranged on the first circuit board 2 or the second circuit board 3. The current detection unit 7 can be a resistor or a Hall current sensor.

[0040] In order to balance the heat dissipation of the first circuit board 2 and the second circuit board 3, when the first inductor 6 and the first capacitor 5 are arranged on the first circuit board 2, the current detection unit 7 can be arranged on the second circuit board 3. When the first inductor 6 and the first capacitor 5 are arranged on the second circuit board 3, the current detection unit 7 can be arranged on the first circuit board 2.

[0041] Based on the above embodiments, further, the number of elements included in the first group of power elements is the same as the number of elements included in the second group of power elements, and the types of elements included in the first group of power elements are the same as the types of elements included in the second group of power elements.

[0042] By setting the number of elements included in the first group of power elements to be the same as the number of elements included in the second group of power elements, the heat generated by the first group of power elements and the second group of power elements can be distributed as evenly as possible on the first circuit board 2 and the second circuit board 3, which is beneficial to improving the heat dissipation efficiency of the circuit boards.

[0043] For example, the first group of power components and the second group of power components include the same number of second capacitors, third capacitors, second inductors and rectifier switches.

[0044] Based on the above embodiments, the first circuit board 2 and the second circuit board 3 are further arranged in parallel. The direction of the airflow generated by the fan for cooling the power supply module is the same as the parallel direction of the first circuit board 2 and the second circuit board 3, which helps the airflow remove heat from the first circuit board 2 and the second circuit board 3. In addition, the heat dissipation duct formed between the first circuit board 2 and the second circuit board 3 helps to accelerate air circulation and improve heat dissipation efficiency.

[0045] like Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, based on the above embodiments, further, the first group of power elements and the second group of power elements respectively include at least one element among the second capacitor 8, the third capacitor 9, the second inductor 10, and the rectifier switch 11.

[0046] Specifically, second capacitor 8 is used for filtering and smoothing voltage. Second capacitor 8 can be a ceramic capacitor. Third capacitor 9 is larger than second capacitor 8 and is used for energy storage and instantaneous current compensation to reduce voltage fluctuations caused by sudden load changes in the power supply. Third capacitor 9 can be an electrolytic capacitor. Second inductor 10 is used for filtering and smoothing current. Second inductor 10 can form a filter circuit with second capacitor 8. Rectifier switch 11 is used for rectification and can be a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) switch or a diode device.

[0047] On the basis of the above embodiments, further, the rectifier switch 11 adopts a MOSFET switch or a diode.

[0048] Based on the above embodiments, the second capacitor 8 is further used for filtering to smooth the voltage, and the third capacitor 9 is used for energy storage to reduce voltage fluctuations caused by sudden load changes in the power supply.

[0049] On the basis of the above embodiments, the transformer 1 further includes at least one group of sub-transformers, and each group of sub-transformers corresponds to the first group of power elements, the second group of power elements, the output terminal, the input element and the detection element.

[0050] like Figure 8 As shown, the power supply module includes three groups of sub-transformers. Each group of sub-transformers corresponds to a first group of power elements, a second group of power elements, an output terminal 4, an input element, and a detection element. The first group of power elements includes a second capacitor 8-1, a third capacitor 9-1, a second inductor 10-1, and a rectifier switch 11-1. The second group of power elements includes a second capacitor 8-2, a third capacitor 9-2, a second inductor 10-2, and a rectifier switch 11-2. The input element includes a first capacitor 5 and a first inductor 6. The detection element is a current detection element. Each group of sub-transformers has a corresponding rectifier switch 11-1, a rectifier switch 11-2, a second capacitor 8-1, and a second capacitor 8-2. Each group of sub-transformers shares the third capacitor 9-2, the second inductor 10-2, the third capacitor 9-1, and the second inductor 10-1. The primary side of each sub-transformer group is electrically connected to the second end of the first inductor 6, and the first end of the first inductor 6 is electrically connected to the first capacitor 5. A current detection unit (not shown) detects the output current of the transformer's secondary side. The first capacitor 5 may also be connected to a power conversion switch tube, which is used for step-down chopping. The power conversion switch tube can be provided on the same circuit board as the first capacitor 5, or on a separate circuit board (for example, the power conversion switch tube can be provided on a third circuit board). This arrangement can be tailored to actual needs and is not limited in this embodiment of the present invention. It is understood that the power supply module may also include a ground terminal.

[0051] The outgoing terminal of the primary side of each group of sub-transformers is electrically connected to the first inductor 6 , and the first inductor 6 is connected to the first capacitor 5 .

[0052] The first output terminal of the secondary side of each sub-transformer group is electrically connected to the first end of the rectifier switch 11-1 of the first group of power components. The second end of the rectifier switch 11-1 is electrically connected to the first end of the second capacitor 8-1. The second end of each second capacitor 8-1 of the first group of power components is electrically connected to the first end of the second inductor 10-1. The second end of the second inductor 10-1 is connected to the first end of the third capacitor 9-1. The second end of the third capacitor 9-1 is electrically connected to the output terminal 4.

[0053] The second output terminal of the secondary side of each sub-transformer group is electrically connected to the first end of the rectifier switch 11-2 of the second group of power components. The second end of the rectifier switch 11-2 is electrically connected to the first end of the second capacitor 8-2. The second end of each second capacitor 8-2 of the second group of power components is electrically connected to the first end of the second inductor 10-2. The second end of the second inductor 10-2 is connected to the first end of the third capacitor 9-2. The second end of the third capacitor 9-2 is electrically connected to the output terminal 4.

[0054] The power supply module provided in the embodiments of the present application has the following advantages compared to the prior art: (1) The power supply module is divided into two PCBs, upper and lower, with a heat dissipation channel formed between the two PCBs, which is conducive to heat dissipation; (2) The power supply module outputs the power supply current in two PCBs, the upper and lower PCBs, and then aggregates them to the output terminals, which can reduce the current flowing through the PCB and disperse the heat dissipation of the PCB, thus achieving better heat dissipation performance; (3) The resonant inductor and other thermal components of the power supply module are placed in the center, and the two PCB boards are raised, which is more suitable for the air flow of the heat dissipation duct; (4) The upper and lower output wire structures of the secondary winding of the transformer divide the current that is concentrated on one PCB in the existing technology into two PCBs, reducing the current flowing through each PCB and reducing the current stress of the PCB, which is more suitable for heat dissipation applications in high current scenarios.

[0055] The power supply module provided in the embodiments of the present application is adaptable to high-power, low-voltage, and high-current power modules for artificial intelligence (AI) / server power supplies, such as a power supply module with an external 760VDC and a rated current of several hundred amperes.

[0056] Throughout this specification, reference to terms such as "one embodiment," "a specific embodiment," "some embodiments," "for example," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0057] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power supply module, characterized in that: The power supply module includes: transformer; a first circuit board fixedly connected to the first output terminal of the transformer; a second circuit board fixedly connected to the second output terminal of the transformer; output terminals connected to the first circuit board and the second circuit board respectively; An input element is provided on the primary side of the transformer and a detection element is provided on the secondary side of the transformer, wherein the input element and the detection element are fixed on different circuit boards; a first group of power elements fixed to the first circuit board, wherein input ends of the first group of power elements are electrically connected to the secondary side of the transformer, and output ends of the first group of power elements are connected to the output terminal; a second group of power components fixed to the second circuit board, wherein input ends of the second group of power components are electrically connected to the secondary side of the transformer, and output ends of the second group of power components are connected to the output terminal; The first circuit board and the second circuit board are arranged opposite to each other to form a heat dissipation duct; the transformer is arranged at the inlet or outlet of the heat dissipation duct.

2. The power supply module according to claim 1, characterized in that: The input element includes a first inductor and a first capacitor, the first capacitor is connected to the first inductor, and the first inductor is connected to the primary output terminal of the transformer.

3. The power supply module according to claim 2, characterized in that: The first capacitor is a film capacitor or a ceramic capacitor.

4. The power supply module according to claim 1, wherein: The detection element includes a current detection unit, and the current detection unit is used to detect the secondary side output current of the transformer.

5. The power supply module according to claim 1, wherein: The number of components included in the first group of power components is the same as the number of components included in the second group of power components, and the types of components included in the first group of power components are the same as the types of components included in the second group of power components.

6. The power supply module according to claim 1, characterized in that: The first circuit board is arranged in parallel with the second circuit board.

7. The power supply module according to claim 1, characterized in that: The first group of power components and the second group of power components respectively include at least one component selected from the group consisting of a second capacitor, a third capacitor, a second inductor, and a rectifier switch.

8. The power supply module according to claim 7, characterized in that: The rectifier switch is a MOSFET switch or a diode.

9. The power supply module according to claim 7, characterized in that: The second capacitor is used for filtering, and the third capacitor is used for energy storage.

10. The power supply module according to any one of claims 1 to 9, characterized in that: The transformer includes at least one group of sub-transformers, and each group of sub-transformers corresponds to a first group of power elements, a second group of power elements, an output terminal, an input element, and a detection element.

Images