High-performance power supply based on hybrid control technology of PFM and PSM

Abstract

The invention discloses a high-performance power supply based on a hybrid control technology of a PFM and a PSM, belongs to the technical field of power supplies, and aims to solve the technical problem of how to improve the performance of the power supply and meet the requirements on the power supply in various complex application scenarios. A detachable top cover is arranged at the top of the power supply shell, and a heat dissipation air outlet is formed in the detachable top cover; a mains supply interface is arranged in the middle of one side face of the power source shell, an output panel is arranged on the other opposite side face of the power source shell, a plurality of sets of output interfaces are arranged on the output panel, and a plurality of evenly-distributed heat dissipation air inlets are formed in the side face, adjacent to the output panel, of the power source shell. An electronic circuit structure and a heat dissipation assembly are arranged in the power source shell.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, in particular to a high-performance power supply based on a hybrid control technology of PFM and PSM. Background Art

[0002] The rapid development of modern electronic technology has led to the emergence of a wide range of high-precision devices, placing extremely stringent demands on power supply performance. With technological advancements, numerous high-precision instruments and equipment are widely used in key fields such as scientific research, healthcare, and communications. These devices place extremely high demands on power supply stability, accuracy, and adaptability to varying load conditions. For example, in scientific research experiments, high-precision measuring instruments require extremely stable voltages from the power supply. Even the slightest voltage fluctuation can cause deviations in experimental data, thereby affecting the accuracy of research results.

[0003] However, in real-world applications, the operating power requirements of many devices vary widely. For example, some high-performance computing devices operate in a low-load state when in standby mode or performing simple data processing, consuming relatively low power. However, when running complex computing tasks, such as deep learning model training, the devices enter a high-load state, and their power requirements increase significantly. The power disparity between low and high loads can reach several times or even dozens of times. Conventional power supplies exhibit numerous shortcomings when dealing with these situations. Traditional linear power supplies, while providing relatively stable output voltage, are inefficient, particularly under high loads. This generates significant heat, wasting energy and requiring additional cooling measures, increasing device cost and complexity. Common switching power supplies based on fixed-frequency pulse-width modulation (PWM) technology experience a significant drop in efficiency at light loads. Furthermore, due to limitations in their control schemes, they struggle to achieve efficient and stable output across a wide load range. Their dynamic response speed is insufficient to handle rapid load changes, leading to transient output voltage fluctuations and failing to meet the stringent power supply stability requirements of high-precision equipment.

[0004] Therefore, how to improve power supply performance and meet the power supply requirements in various complex application scenarios is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The technical task of the present invention is to provide a high-performance power supply based on a hybrid control technology of PFM and PSM to solve the problem of how to improve power supply performance and meet the power supply requirements in various complex application scenarios.

[0006] The technical task of the present invention is achieved in the following way: a high-performance power supply based on a hybrid control technology of PFM and PSM, including a power supply housing, a removable top cover is provided on the top of the power supply housing, and a heat dissipation outlet is provided on the removable top cover; a mains power interface is provided in the middle position of one side of the power supply housing, an output panel is provided on the other side of the power supply housing, and several groups of output interfaces are provided on the output panel, and several evenly arranged heat dissipation inlets are provided on one side of the power supply housing adjacent to the output panel; an electronic circuit structure and a heat dissipation component are provided in the power supply housing.

[0007] Preferably, the heat dissipation component includes a heat dissipation fan, which is fixedly mounted on the inner side of the power supply housing adjacent to the heat dissipation air inlet.

[0008] Preferably, the heat dissipation assembly further includes a heat sink, which is arranged on the electronic circuit structure.

[0009] More preferably, the electronic circuit structure includes a first circuit board and a second circuit board, the first circuit board is installed at the bottom position inside the power supply casing and the first circuit board is electrically connected to the AC power interface and the cooling fan; the second circuit board is located on the side of the first circuit board away from the AC power interface and the second circuit board is electrically connected to the first circuit board through a plug-in connector.

[0010] More preferably, the first circuit board is provided with an anti-interference circuit, a first rectifier, a filter capacitor, an inverter, a second rectifier and a DC-DC circuit, the output end of the AC interface is connected to the anti-interference circuit, the output end of the anti-interference circuit is connected to the first rectifier, the output end of the first rectifier is connected to the inverter, a filter capacitor is connected between the first rectifier and the inverter, the output end of the inverter is connected to the second rectifier, the output end of the second rectifier is provided with a DC-DC circuit, and the output end of the DC-DC circuit is electrically connected to the second circuit board.

[0011] More preferably, the second circuit board is electrically connected to the plurality of output interfaces, a detection circuit is provided on the second circuit board, the detection circuit is connected between the DC-DC circuit and the plurality of output interfaces, the pins of the plurality of output interfaces are all plugged into the second circuit board and connected by welding, and the plug-in interface of the output interface extends to the outside of the power supply housing, an output interface fixing plate is provided in the power supply housing at locations corresponding to the plurality of output interfaces, and the plurality of output interfaces (4) are fixedly mounted on the side wall of the power supply housing through the output interface fixing plate.

[0012] More preferably, a PFM / PSM hybrid control chip is further provided on the first circuit board, and the PFM / PSM hybrid control chip is electrically connected to the detection circuit.

[0013] Preferably, a cutoff switch is further provided on one side of the mains power interface.

[0014] The high-performance power supply based on the hybrid control technology of PFM and PSM of the present invention has the following advantages:

[0015] (1) The present invention combines the hybrid control technologies of PFM (pulse frequency modulation) and PSM (pulse skipping modulation). PFM technology controls output power by adjusting the switching frequency. It can reduce the switching frequency under light load, effectively reduce switching losses, and improve power efficiency. PSM technology skips some switching cycles under light load to further reduce power consumption. The hybrid control technology formed by combining these two technologies can intelligently switch control modes according to real-time changes in the load. PSM mode is used under low load to reduce the number of switches and reduce losses. PFM mode is switched to under high load to maintain the stability of the output voltage by adjusting the switching frequency. This hybrid control technology provides an effective way to solve the power consumption needs of existing high-precision equipment over a wide load range, and is expected to significantly improve the performance of the power supply and meet the stringent requirements of the power supply in various complex application scenarios.

[0016] (2) The present invention is provided with a heat sink, a rectifier circuit, a DC-DC circuit, a detection circuit, and a PFM / PSM hybrid control chip, etc., which can convert AC mains power into DC power required by some high-precision instruments and equipment for use in equipment operation. It adopts PFM / PSM hybrid control technology to achieve efficient and stable operation over a wide load range. When the load is light, the PSM mode is enabled to reduce switching losses by skipping some switching cycles. When the load is heavy, it switches to the PFM mode and adjusts the switching frequency to maintain a stable output voltage.

[0017] (3) The present invention is provided with a detection circuit and a PFM / PSM hybrid control chip. The detection circuit can monitor the output voltage and load current and feed the monitoring results back to the PFM / PSM hybrid control chip. The PFM / PSM hybrid control chip automatically switches and adjusts the PFM and PSM control modes based on the monitoring values. The PSM mode is used under light load to reduce the number of switching times. The PFM mode is used under heavy load to adjust the switching frequency. At the same time, it also provides functions such as overcurrent protection, overvoltage protection, and undervoltage protection.

[0018] (4) The present invention is provided with two sets of rectifiers and inverters. The first rectifier converts the AC mains into low-frequency DC, which is then inverted into high-frequency AC by the inverter. The rectifier converts it into DC again and outputs it to the DC-DC circuit. High-frequency rectification can use smaller inductance and capacitance values to achieve the same filtering effect, further reducing ripple. Smaller ripple can ensure stable operation of the equipment and reduce errors and faults caused by power supply fluctuations. At the same time, the ability of high-frequency rectification to reduce ripple also helps to improve the electromagnetic compatibility of the power supply, reduce interference with surrounding electronic equipment, and provide a strong guarantee for improving the overall performance of the electronic system.

[0019] (5) The present invention improves power supply performance and meets the power supply requirements in various complex application scenarios.

[0020] Therefore, the present invention has the characteristics of reasonable design, simple structure, easy processing, small size, convenient use, and multiple uses, and thus has good promotion and use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Attachment Figure 1 The schematic diagram of the structure of a high-performance power supply based on the hybrid control technology of PFM and PSM;

[0023] Attachment Figure 2 For attachment Figure 1 Schematic diagram of the internal structure of the power supply housing;

[0024] Attachment Figure 3 For attachment Figure 1 A schematic diagram of the structure inside the power supply housing from another angle;

[0025] Attachment Figure 4 is a schematic diagram of a first circuit board.

[0026] In the figure: 1. Power supply housing; 2. Removable top cover; 3. AC power interface; 4. Output interface; 5. Cooling air inlet; 6. Cooling air outlet; 7. Cooling fan; 8. Heat sink; 9. First circuit board; 10. Second circuit board; 11. Anti-interference circuit; 12. First rectifier; 13. Filter capacitor; 14. Inverter; 15. Second rectifier; 16. DC-DC circuit; 17. PFM / PSM hybrid control chip; 18. Detection circuit; 19. Output interface fixing plate; 20. Cut-off switch. DETAILED DESCRIPTION

[0027] A high-performance power supply based on a hybrid control technology of PFM and PSM according to the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate positions or relationships based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] Example:

[0031] As attached Figure 1 As shown, this embodiment provides a high-performance power supply based on a hybrid control technology of PFM and PSM, the structure of which includes a power supply housing 1, a removable top cover 2 is provided on the top surface of the power supply housing 1, a mains interface 3 is provided on one side of the power supply housing 1, and the side of the power supply housing 1 facing away from the mains interface 3 is provided as an output panel, and a plurality of groups of output interfaces 4 are provided on the output panel. An electronic circuit structure and a heat dissipation component are provided in the power supply housing 1, a heat dissipation air inlet 5 is provided on the side of the power supply housing 1 adjacent to the mains interface 3 and the output panel, and a heat dissipation air outlet 6 is provided on the removable top cover 2.

[0032] As attached Figure 2 and 3 As shown, the heat dissipation assembly in this embodiment includes a cooling fan 7 and a heat sink 8. The cooling fan 7 is fixedly mounted inside the power supply housing 1 near the heat dissipation air inlet 5, and the heat sink 8 is provided on the electronic circuit structure. The heat sink 8 can be placed in a circuit structure that generates a lot of heat, such as above the rectifier bridge. The heat sink 8 is used to dissipate heat and increase the contact area with the air. The cooling fan 7 drives the air flow, and the flowing air contacts the heat sink 8 for heat exchange, removing the heat.

[0033] The electronic circuit structure in this embodiment includes a first circuit board 9 and a second circuit board 10. The first circuit board 9 is horizontally installed at the bottom of the power supply housing 1. The first circuit board 9 is electrically connected to the AC power interface 3 and the cooling fan 7. The second circuit board 10 is arranged on the side of the first circuit board 9 facing away from the AC power interface 3. The second circuit board 10 is electrically connected to the first circuit board 9 through a plug-in connector.

[0034] As attached Figure 4As shown, the first circuit board 9 in this embodiment is provided with an anti-interference circuit 11, a first rectifier 12, a filter capacitor 13, an inverter 14, a second rectifier 15 and a DC-DC circuit 16. The output end of the AC power interface 3 is connected to the anti-interference circuit 11, the output end of the anti-interference circuit 11 is connected to the first rectifier 12, the output end of the first rectifier 12 is connected to the inverter 14, a filter capacitor 13 is connected between the first rectifier 12 and the inverter 14, the output end of the inverter 14 is connected to the second rectifier 15, the output end of the second rectifier 15 is provided with a DC-DC circuit 16, and the output end of the DC-DC circuit 16 is electrically connected to the second circuit board 10. The anti-interference circuit 11 is used to preliminarily filter out high-frequency noise and clutter in the input power supply, reduce interference to subsequent circuits, and stabilize the input voltage. The first rectifier 12 is used to convert AC power into DC power. The filter capacitor 13 suppresses voltage fluctuations through the charging and discharging process and smoothes the pulsating DC voltage after rectification. The inverter 14 converts low-frequency DC power into high-frequency AC power. The second rectifier 15 converts AC power into DC power to prepare for the subsequent DC-DC circuit 16. The DC-DC circuit 16 performs high-frequency chopping on the rectified DC power, converts it to a suitable voltage level through the transformer, and then passes it through the freewheeling diode. The output voltage is rectified and filtered by the output filter capacitor to obtain a stable output voltage. Furthermore, the second circuit board 10 is electrically connected to the multiple output interfaces 4. A detection circuit 18 is provided on the second circuit board 10. The detection circuit 18 is connected between the DC-DC circuit 16 and the multiple output interfaces 4. The pins of the multiple output interfaces 4 are all plugged into the second circuit board 10 and welded together. The plug-in interface of the output interface 4 extends to the outside of the power supply housing 1. An output interface fixing plate 19 is provided in the power supply housing 1 corresponding to the multiple output interfaces 4. The multiple output interfaces 4 are fixedly mounted on the side wall of the power supply housing 1 through the output interface fixing plate 19. The detection circuit 18 is provided with a resistor voltage divider circuit and an optocoupler, etc., which can monitor the output voltage and load current, and output the monitored values to the PFM / PSM hybrid control chip 17, so that the PFM / PSM hybrid control chip 17 can perform adjustment and control.

[0035] In this embodiment, the first circuit board 9 is also equipped with a PFM / PSM hybrid control chip 17, which is electrically connected to a detection circuit 18. This chip automatically switches between PFM and PSM control modes based on the load conditions reported by the detection circuit 18. Under light loads, the PSM mode is used to reduce switching frequency; under heavy loads, the PFM mode is used to adjust the switching frequency. This chip also provides overcurrent protection, overvoltage protection, and undervoltage protection.

[0036] In this embodiment, a cutoff switch 20 is further provided on one side of the mains interface 3. The cutoff switch 20 is used to cut off the conduction of the mains interface 3, directly cutting off the current source, and facilitating the use of power.

[0037] Structure Description:

[0038] Power supply housing 1: The external protective structure of the power supply, used to accommodate the internal electronic circuit structure and heat dissipation components, provide physical protection for internal components and support the whole;

[0039] Removable top cover 2: A removable component installed on the top surface of the power supply housing 1 to facilitate inspection and maintenance of the power supply interior;

[0040] Mains power interface 3: provided on one side of the power supply housing 1, used to connect to the external AC mains power and introduce the mains power into the power supply;

[0041] Output interface 4: Located on the output panel of the power supply housing 1, there are multiple groups of output interfaces for connecting external devices to provide DC output.

[0042] Cooling air inlet 5: Located on one side of the power supply housing 1 near the AC power interface 3 and the output panel, it is a channel for cold air to enter the power supply, providing a source of cold air for heat dissipation;

[0043] Heat dissipation outlet 6: provided on the removable top cover 2, it is the outlet for hot air to be discharged from the power supply housing, and cooperates with the heat dissipation air inlet 5 and the heat dissipation component to achieve air circulation and heat dissipation;

[0044] Cooling fan 7: fixedly installed in the power supply housing 1 near the heat dissipation air inlet 5, drives air flow, enables air to exchange heat with the heat sink 8, and enhances the heat dissipation effect;

[0045] Heat sink 8: Installed in the part of the electronic circuit structure that generates more heat, such as above the rectifier bridge, to conduct heat away and increase the contact area with the air to assist in heat dissipation;

[0046] First circuit board 9: Horizontally mounted at the bottom of the power supply housing 1, electrically connected to the mains interface 3 and the cooling fan 7, and carrying various electronic components such as the anti-interference circuit 11 and the first rectifier 12, serving as the carrier for implementing the circuit functions of the power supply;

[0047] The second circuit board 10 is located on the side of the first circuit board 9 facing away from the mains interface 3. It is electrically connected to the first circuit board 9 via a plug-in connector, and connects multiple output interfaces 4 and the detection circuit 18 to monitor the output voltage and load current and output power.

[0048] Anti-interference circuit 11: provided on the first circuit board 9, connected to the output end of the mains interface 3, used to initially filter out high-frequency noise and clutter in the input power supply, stabilize the input voltage, and reduce interference to subsequent circuits;

[0049] First rectifier 12: located on the first circuit board 9, connected to the output end of the anti-interference circuit 11, converts AC power into DC power, and provides DC input for subsequent circuits;

[0050] Filter capacitor 13: connected between the first rectifier 12 and the inverter 14, suppresses voltage fluctuations through charging and discharging, smoothes the pulsating DC voltage after rectification, and provides a stable input for the inverter 14;

[0051] Inverter 14: mounted on the first circuit board 9, connected to the first rectifier 12 and the second rectifier 15, converts low-frequency DC power into high-frequency AC power, so that high-frequency characteristics can be used for efficient rectification and filtering.

[0052] Second rectifier 15: located on the first circuit board 9, connected to the output end of the inverter 14, converts the high-frequency AC power output by the inverter 14 into DC power again, preparing for the DC-DC circuit 16;

[0053] DC-DC circuit 16: is provided on the first circuit board 9, connected to the output end of the second rectifier 15 and the second circuit board 10, and performs high-frequency chopping, voltage transformation, rectification and filtering on the rectified DC power to achieve accurate voltage conversion to meet the power requirements of the equipment;

[0054] PFM / PSM hybrid control chip 17: mounted on the first circuit board 9 and electrically connected to the detection circuit 18, automatically switches between PFM and PSM control modes based on the load conditions transmitted by the detection circuit 18, and provides functions such as overcurrent, overvoltage, and undervoltage protection. It is the core of power supply control;

[0055] Detection circuit 18: provided on the second circuit board 10, connected between the DC-DC circuit 16 and the multiple output interfaces 4, monitors the output voltage and load current through components such as a resistor divider circuit and an optocoupler, and outputs the monitored values to the PFM / PSM hybrid control chip 17;

[0056] Output interface fixing plate 19: located in the power supply housing 1 at positions corresponding to the multiple output interfaces 4, used to fix the multiple output interfaces 4 so that they are stably mounted on the side wall of the power supply housing 1;

[0057] The cut-off switch 20 is provided on one side of the mains interface 3 and is used to cut off the conduction of the mains interface 3, directly controlling the current source, facilitating the use of the power supply and safe control.

[0058] Working Principle: The power supply's input begins at the mains interface 3, which connects to the power supply housing 1 and introduces external AC mains power. A disconnect switch 20, located on one side of the mains interface 3, directly cuts off the mains power flow, controlling the current flow at its source, ensuring safety and ease of operation. The incoming AC mains power first passes through an anti-interference circuit 11. This circuit's primary function is to initially filter out high-frequency noise and interference from the input power, reducing interference with subsequent circuits. It also stabilizes the input voltage, providing a relatively clean and stable power source for subsequent rectification operations. After undergoing anti-interference processing, the AC power enters the first rectifier 12. The function of the first rectifier 12 is to convert the AC power into DC power. However, the resulting DC power is pulsating and exhibits significant voltage fluctuations. To smooth this pulsating DC power, a filter capacitor 13 is connected between the first rectifier 12 and the inverter 14. Through its charge and discharge processes, the filter capacitor 13 suppresses voltage fluctuations, smoothing the pulsating DC voltage after rectification, making the voltage more stable and providing a suitable input for the subsequent operation of the inverter 14. The inverter 14 converts the filtered low-frequency direct current into high-frequency alternating current. Using high-frequency alternating current has many advantages. During the subsequent rectification and filtering process, the high-frequency signal can make the size of filter components such as inductors and capacitors smaller, while also reducing ripple and improving the stability and electromagnetic compatibility of the power supply. The high-frequency alternating current converted by the inverter 14 enters the second rectifier 15, which again converts the alternating current into direct current, preparing for the subsequent DC-DC circuit 16. The DC-DC circuit 16 is a key link in the power supply's ability to achieve precise voltage conversion. It performs high-frequency chopping on the rectified direct current, then converts it to an appropriate voltage level through a transformer. The freewheeling diode and output filter capacitor then perform rectification and filtering, ultimately producing a stable output voltage to meet the power requirements of the device. At the output end of the power supply, multiple sets of output interfaces 4 are fixedly mounted on the side wall of the power supply housing 1 via an output interface fixing plate 19 and are electrically connected to the second circuit board 10. The detection circuit 18 provided on the second circuit board 10 is connected across the DC-DC circuit 16 and the multiple output interfaces 4. The detection circuit 18 is provided with components such as a resistor divider circuit and an optocoupler, which can monitor the output voltage and load current in real time and output the monitored values to the PFM / PSM hybrid control chip 17. The PFM / PSM hybrid control chip 17 is the control core of the entire power supply. It is electrically connected to the detection circuit 18 and automatically switches between the PFM and PSM control modes according to the load conditions transmitted by the detection circuit 18. When the power supply is in a light load state, the chip adopts the PSM mode, which reduces the number of switches by skipping some switching cycles, thereby reducing switching losses and improving power supply efficiency; when in a heavy load state, the chip switches to the PFM mode and maintains the stability of the output voltage by adjusting the switching frequency.In addition, the chip also has functions such as overcurrent protection, overvoltage protection and undervoltage protection. When it is detected that the output current or voltage exceeds or falls below the safe range, protective measures can be taken in time to ensure the safety of the power supply and connected devices. In terms of heat dissipation of the power supply, a heat dissipation air inlet 5 is provided on the side of the power supply housing 1 near the AC power interface 3 and the output panel, and a heat dissipation air outlet 6 is provided on the removable top cover 2. The heat dissipation component includes a heat dissipation fan 7 and a heat sink 8. The heat dissipation fan 7 is fixedly installed in the power supply housing 1 near the heat dissipation air inlet 5. The heat sink 8 is provided in the parts of the electronic circuit structure that generate more heat, such as above the rectifier bridge. The heat sink 8 conducts heat and increases the contact area with the air. The heat dissipation fan 7 drives the air flow so that the flowing air contacts the heat sink 8 for heat exchange, and brings the heat out of the power supply housing 1 from the heat dissipation air outlet 6, ensuring that the power supply works stably in a suitable temperature environment. In summary, this high-performance power supply based on PFM and PSM hybrid control technology achieves efficient conversion from AC mains to stable DC output through the coordinated work of multiple links. At the same time, it has intelligent control and reliable protection mechanisms, providing a stable and safe power supply for various high-precision instruments and equipment.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-performance power supply based on a hybrid control technology of PFM and PSM, characterized in that: It includes a power supply casing, a removable top cover is provided on the top of the power supply casing, and a heat dissipation outlet is provided on the removable top cover; a mains power interface is provided in the middle position of one side of the power supply casing, an output panel is provided on the other side of the power supply casing, and several groups of output interfaces are provided on the output panel, and several evenly arranged heat dissipation inlets are provided on one side of the power supply casing adjacent to the output panel; an electronic circuit structure and a heat dissipation component are provided inside the power supply casing.

2. The high-performance power supply based on the hybrid control technology of PFM and PSM according to claim 1, characterized in that: The heat dissipation component includes a heat dissipation fan, which is fixedly installed on the inner side of the power supply housing near the heat dissipation air inlet.

3. The high-performance power supply based on the hybrid control technology of PFM and PSM according to claim 1, characterized in that: The heat dissipation assembly further includes a heat sink, which is arranged on the electronic circuit structure.

4. The high-performance power supply based on the hybrid control technology of PFM and PSM according to any one of claims 1 to 3, characterized in that: The electronic circuit structure includes a first circuit board and a second circuit board. The first circuit board is installed at the bottom position inside the power supply casing and is electrically connected to the AC power interface and the cooling fan; the second circuit board is located on the side of the first circuit board away from the AC power interface and is electrically connected to the first circuit board through a plug-in connector.

5. The high-performance power supply based on the hybrid control technology of PFM and PSM according to claim 4, characterized in that: The first circuit board is provided with an anti-interference circuit, a first rectifier, a filter capacitor, an inverter, a second rectifier and a DC-DC circuit. The output end of the AC power interface is connected to the anti-interference circuit, the output end of the anti-interference circuit is connected to the first rectifier, the output end of the first rectifier is connected to the inverter, a filter capacitor is connected between the first rectifier and the inverter, the output end of the inverter is connected to the second rectifier, the output end of the second rectifier is provided with a DC-DC circuit, and the output end of the DC-DC circuit is electrically connected to the second circuit board.

6. The high-performance power supply based on the hybrid control technology of PFM and PSM according to claim 5, characterized in that: The second circuit board is electrically connected to the plurality of output interfaces. A detection circuit is provided on the second circuit board. The detection circuit is connected between the DC-DC circuit and the plurality of output interfaces. The pins of the plurality of output interfaces are all plugged into the second circuit board and connected by welding. The plug-in interface of the output interface extends to the outside of the power supply housing. An output interface fixing plate is provided in the power supply housing at locations corresponding to the plurality of output interfaces. The plurality of output interfaces (4) are fixedly mounted on the side wall of the power supply housing via the output interface fixing plate.

7. The high-performance power supply based on the hybrid control technology of PFM and PSM according to claim 6, characterized in that: The first circuit board is also provided with a PFM / PSM hybrid control chip, which is electrically connected to the detection circuit.

8. The high-performance power supply based on the hybrid control technology of PFM and PSM according to claim 1, characterized in that: A cutoff switch is also provided on one side of the mains power interface.

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