A high-power power supply system

Abstract

The application provides a high-power power supply system, comprising a main power supply circuit and an exception circuit; the main power supply circuit comprises a first switch, an AC contactor, a DC voltage conversion module, a power management module and a plurality of power output circuits, an input side of the first switch is connected with a power supply side of a three-phase power supply, an output side of the first switch is connected with an input side of the AC contactor, an output side of the AC contactor is connected with the plurality of power output circuits respectively, one output of the AC contactor is connected with the power management module through the DC voltage conversion module, and the power management module is connected with control switches of the plurality of power output circuits respectively; the main power supply circuit further comprises an emergency stop circuit, a coil of the AC contactor is connected in series in the emergency stop circuit, the emergency stop circuit comprises a plurality of emergency stop expansion interfaces connected in series, and the emergency stop expansion interfaces are used for connecting emergency stop switches of external devices in series respectively. The application has the advantages of large power, small size, convenient debugging, maintenance and expansion, safety and reliability and the like.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to a high-power power supply system. Background Technology

[0002] With the development of electronic technology, the circuit systems of various electronic products are becoming increasingly complex, placing higher demands on power supply systems. Especially in the field of ATE (Automatic Test Equipment), the power supply system is a crucial component, providing power to the entire device.

[0003] Currently, for power supply systems used in high-power testing, the common approach is to add hardware circuitry. This results in high-power power supply systems generally having drawbacks such as large size, inconvenience in maintenance, and difficulty in operation. Moreover, ordinary high-power power supply systems typically only have functions such as power-on / off sequence control and power monitoring, lacking more advanced safety designs, and suffer from poor scalability and low safety levels. Utility Model Content

[0004] In view of this, this application proposes a high-power power supply system with advantages such as high power, small size, easy debugging, maintenance and expansion, and safety and reliability.

[0005] This application provides a high-power power supply system, including a main power supply circuit and an exception circuit;

[0006] The main power supply circuit includes a first switch, an AC contactor, a DC voltage conversion module, a power management module, and several power output circuits. The input side of the first switch is connected to the power supply side of the three-phase power supply, and the output side is connected to the input side of the AC contactor. The output side of the AC contactor is connected to the several power output circuits. One output of the AC contactor is converted into DC voltage by the DC voltage conversion module to power the power management module. The power management module is connected to the control switches of the several power output circuits to monitor and control the on / off state of the several power output circuits. The several power output circuits are used to convert the input voltage into power to supply power to various devices.

[0007] The main power supply circuit also includes an emergency stop circuit, in which the coil of the AC contactor is connected in series. The emergency stop circuit includes several emergency stop expansion interfaces connected in series for connecting emergency stop switches of external devices in series.

[0008] The exception circuit includes a second switch, the input side of which is connected to one power supply of the three-phase power supply, and the output side is connected to the host computer and an external power source meter respectively.

[0009] As described above, this application, through the design of a main power supply circuit including a first switch, an AC contactor, a DC voltage conversion module, and several power output circuits, can stably obtain power from a three-phase power source and provide various DC or AC voltages of different power levels to various devices through the power output circuits, achieving high-power multi-channel output. Simultaneously, the power management module can monitor and control the on / off status of each power output circuit in real time, and debug each power output circuit, realizing intelligent power distribution and management. The main power supply circuit of this application also includes an emergency stop circuit, enabling rapid power cut-off in emergencies. Multiple emergency stop expansion interfaces are provided in this emergency stop circuit according to the application scenario requirements, allowing the connection of emergency stop switches for external devices, increasing the system's flexibility and scalability. Furthermore, the design of the exception circuit provides additional power supply channels, which can be used to power specific devices (such as a host computer and external power meters), further enhancing the system's flexibility.

[0010] Optionally, the emergency stop circuit may also include a safety relay;

[0011] The coil of the AC contactor is connected in series with an output circuit of the safety relay, and the output circuit is also connected in series with a normally open switch and a normally closed switch;

[0012] The plurality of emergency stop expansion interfaces are connected in series to an input circuit of the safety relay, and the input circuit is also connected in series to at least one emergency stop switch, which forms an interlocked connection with at least one emergency stop expansion interface.

[0013] As described above, by introducing a safety relay and its related circuits into the emergency stop circuit, connecting the emergency stop expansion interface and the emergency stop switch in series with the input circuit of the safety relay, and introducing an interlocking connection, it can be ensured that the power supply can be effectively cut off when any emergency stop switch is triggered. In addition, by connecting the coil of the AC contactor, as well as the normally open and normally closed switches in series with the output circuit of the safety relay, the impedance of the circuit is reduced, ensuring the reliable and practical use of the AC contactor.

[0014] Optionally, the main power supply circuit may further include an interlocking circuit connected in series between the control switches of the DC voltage conversion module and several power output circuits.

[0015] As described above, by adding an interlocking circuit connected in series between the DC voltage conversion module and the control switches of several power output circuits in the main power supply circuit, it is possible to ensure that the coil power supply of the control switches in the power output circuit is automatically cut off in the event of equipment failure, maintenance, or emergency shutdown, thereby improving the safety and reliability of the system.

[0016] Optionally, the main power circuit may further include a temperature and humidity acquisition circuit connected to the power management module.

[0017] As described above, the temperature and humidity acquisition circuit can monitor the temperature and humidity of the power system's operating environment in real time, ensuring that the system operates under suitable conditions. When the ambient temperature or humidity exceeds the preset range, the system can take corresponding protective measures to prevent equipment failure or damage caused by environmental factors.

[0018] Optionally, the power management module includes a voltage and current measurement circuit, which is connected to the output terminals of several power output circuits.

[0019] As described above, the voltage and current measurement circuit can monitor the output voltage and current of each power output circuit in real time, providing accurate power parameter data for the power management module. This data can be used to evaluate the power output status of the system in real time, ensuring that each device receives a stable and compliant power supply, thus realizing intelligent management of power output.

[0020] Optionally, the power output circuit includes at least one of the following:

[0021] Power distribution circuit, AC output circuit, DC output circuit.

[0022] As described above, the high-power power supply system of this application can provide multiple power outputs. For example, the power distribution circuit can provide 220V AC voltage and supply power to each device through a power strip. The AC output circuit can convert 380V AC voltage into a smaller AC voltage and supply it to the corresponding device. The DC output circuit can convert 380V AC voltage into a smaller DC voltage and supply it to the corresponding device, thereby meeting the different power requirements of each device.

[0023] Optionally, the power output circuit further includes a fan power supply circuit for converting the input voltage into the operating voltage required by the system's fan control board;

[0024] The power management module is connected to the fan control board via a bus cable and is used to monitor and control the speed of the system fan.

[0025] As described above, the 380V AC voltage can be converted into the operating voltage required by the fan control board through the fan power supply circuit to ensure that the fan can work normally. The power management module monitors and controls the fan speed in real time to ensure that the fan operates within a suitable speed range and meets the system's heat dissipation requirements.

[0026] Optionally, a current-limiting device may also be connected in series in each of the power output circuits.

[0027] Therefore, by setting a current-limiting device, such as a current-limiting resistor or fuse, in the power output circuit, the current can be limited to prevent equipment damage or safety accidents caused by excessive current.

[0028] Optionally, the first switch and the second switch are air switches.

[0029] As can be seen from the above, air switches have high electrical and mechanical reliability. They can quickly cut off the circuit in case of overload or short circuit, effectively preventing the fault from spreading and protecting the safety of equipment and systems.

[0030] Optionally, the control switch includes a relay switch.

[0031] Therefore, the control switch in the power output circuit can be implemented using a relay switch. This relay switch can provide electrical isolation, ensuring safe isolation between the control circuit and the controlled circuit. Furthermore, by connecting the coil of the relay switch through the signal output terminal of the power management module, the on / off control of the relay switch can be achieved through a simple control signal.

[0032] These and other aspects of this application will become more apparent in the description of the following embodiments(s). Attached Figure Description

[0033] Figure 1 A circuit diagram of a high-power power supply system provided in the embodiments of this application;

[0034] Figure 2 An extended circuit diagram of an emergency stop circuit provided in an embodiment of this application;

[0035] Figure 3 This is a connection circuit diagram of a power management module provided in an embodiment of this application.

[0036] It should be understood that the dimensions and shapes of the block diagrams in the above structural diagrams are for reference only and should not constitute an exclusive interpretation of the embodiments of this application. The relative positions and inclusion relationships between the block diagrams presented in the structural diagrams are only schematic representations of the structural relationships between the block diagrams, and are not intended to limit the physical connection methods of the embodiments of this application. Detailed Implementation

[0037] The technical solutions provided in this application will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the system architecture and business scenarios provided in the embodiments of this application are mainly for illustrating possible implementations of the technical solutions of this application and should not be construed as the sole limitation on the technical solutions of this application. Those skilled in the art will recognize that the technical solutions provided in this application are equally applicable to similar technical problems as system architectures evolve and new business scenarios emerge.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0039] This application proposes a high-power power supply system, designed according to the SEMI S2 specification. It provides semiconductor devices with a high-power, compact, easy-to-debug, maintain, and expandable power supply system with strong anti-interference capabilities and high reliability. Through the ingenious design of the main power circuit and exception circuit, this power supply system achieves precise power supply and management for various devices. The emergency stop circuit in the main power circuit further enhances system safety, enabling rapid power cutoff in emergencies to prevent accidents. The exception circuit provides additional power support for specific devices, ensuring stable operation of the entire system. The rated power of this power supply system can reach 30KW, can be flexibly configured according to needs, is compact and easy to operate, and includes auxiliary functions such as power-on sequence monitoring, power monitoring, fan speed readback, and temperature and humidity adjustment and monitoring, facilitating maintenance and debugging. In addition, the power supply system has multiple extended emergency stop circuit interfaces and extended interlock interfaces, as well as good grounding and shielding, resulting in higher safety.

[0040] like Figure 1 As shown in the figure, this application provides a high-power power supply system, including a main power supply circuit and an exception circuit.

[0041] The main power supply circuit includes an air switch QF1 (the aforementioned first switch), an AC contactor KM, a DC12V voltage conversion module, a power management module PMU, and several power output circuits (PDU, AMP1-AMP4, DC48V, FAN_POWER, 220VAC). The input side of the air switch QF1 is connected to the power supply sides L1, L2, and L3 of the three-phase power supply, and the output side is connected to the input side of the AC contactor KM. The output side of the AC contactor KM is connected to several power output circuits, and one output of the AC contactor KM is converted by the DC12V voltage conversion module. The power management module (PMU) is powered by DC voltage. The PMU is connected to relay switches K1-K8 (the control switches mentioned above) of several power output circuits, controlling the on / off state of each circuit. These power output circuits convert the input voltage into power to supply various devices. The PMU also collects voltage and current data from each power output circuit via a voltage and current acquisition circuit, real-time assessing the system's power output status to ensure a stable and compliant power supply for all devices, thus achieving intelligent management of power output.

[0042] Based on this main power supply circuit, the 380V AC voltage input from the three-phase power supply is input to the AC contactor KM through the control of the air switch QF1. The AC contactor KM converts the AC voltage to DC voltage through the DC12V DC voltage conversion module (e.g., converting AC voltage to DC 12V voltage) via a corresponding switch, and then supplies power to the power management module PMU, ensuring that the power management module PMU can work normally. By controlling the closing or opening of the relay switches K1-K8, the on / off control of each power output circuit is realized, thereby outputting different power supplies to each device to meet the power supply needs of each device.

[0043] In some embodiments, provided that the rated current, voltage level and breaking capacity are guaranteed, the above-mentioned air switch QF1 can also be replaced by a disconnecting switch, a three-phase residual current circuit breaker (RCBO) or a molded case circuit breaker (MCCB) to realize the switching control of three-phase power supply and overload protection.

[0044] The aforementioned main power supply circuit also includes an emergency stop circuit (EMO). The coil of the AC contactor KM is connected in series in the emergency stop circuit EMO. The emergency stop circuit EMO includes several emergency stop expansion interfaces EXT1-EXT4 connected in series, which are used to connect emergency stop switches of external devices in series to achieve emergency stop interlocking control with external devices. In this embodiment, the emergency stop circuit EMO can be configured with multiple emergency stop expansion interfaces according to the needs of the application scenario. Each emergency stop expansion interface can be regarded as an independent expansion module. Based on these multiple emergency stop expansion interfaces, emergency stop switches or emergency stop circuits of multiple external devices can be connected to the emergency stop circuit, and interlocking control with emergency stop switches or emergency stop circuits of external devices can be achieved through these multiple emergency stop expansion interfaces. When an emergency occurs in the power supply system, emergency stop control of the main power supply circuit and the power supply circuit of external devices can be achieved by cutting off any one emergency stop switch, thereby meeting the collaborative safety requirements of the power supply system.

[0045] The aforementioned exception circuit includes air switch QF2 (the aforementioned second switch). The input side of air switch QF2 is connected to one power supply L2 of the three-phase power supply, and the output side is connected to the host computer and the external power meter respectively, so as to realize the power supply control of the host computer and the external power meter.

[0046] This embodiment incorporates an emergency stop circuit within the main power supply loop, including multiple emergency stop expansion interfaces. These interfaces allow external devices to connect their emergency stop switches, enabling rapid power disconnection in emergencies and protecting both the system and external devices. Figure 2As shown, the emergency stop circuit in this embodiment also includes a safety relay HF, and the coil of the AC contactor KM and multiple emergency stop expansion interfaces are connected in series in different circuits of the safety relay. One output of the three-phase power supply is converted to AC / DC 24V by a voltage conversion module, and then supplies power to the safety relay HF through contacts A1 and A2. That is, contacts A1 and A2 are the power supply contacts of the safety relay. The coil of the AC contactor KM can be connected in series in the output circuit formed by contacts 13 and 14 of the safety relay HF. A normally open switch SB1 and a normally closed switch SB2 are also connected in series in this output circuit. Therefore, the impedance of the output circuit is determined only by the contact resistance of the two switches and the resistance of the circuit itself, resulting in a low impedance and ensuring the reliable use of the AC contactor KM. The aforementioned multiple emergency stop expansion interfaces EXT1-EXT4 can be connected in series in the input circuit formed by contacts S11 and S12 of the safety relay HF. The impedance of this input circuit is generally between 15Ω and 30Ω, thus allowing multiple emergency stop switches to be connected in series, thereby improving the expandability of the emergency stop circuit. These multiple emergency stop expansion interfaces EXT1-EXT4 can be used to connect emergency stop switches or interlocking circuits of other external devices. Furthermore, the input circuit is also connected in series with emergency stop switches SBE1 and SBE2. Emergency stop switches SBE1 and SBE2 can serve as emergency stop switches for the power system and the test equipment, respectively. Emergency stop expansion interfaces EXT1 and EXT2 can be interlocked with emergency stop switches SBE1 and SBE2, respectively, thus enabling interlocking control between emergency stop switches SBE1 and SBE2 and the devices connected to emergency stop expansion interfaces EXT1 and EXT2.

[0047] based on Figure 1 and Figure 2 As shown, the working principle of this emergency stop circuit is as follows:

[0048] When a 380V AC voltage is input to the high-power power system of this embodiment from a three-phase power supply, the AC / DC 24V operates and supplies power to the safety relay HF. The output circuit composed of safety momentary contacts 13 and 14 is closed. At this time, pressing the normally open switch SB1 energizes the coil of the AC contactor KM, causing the AC contactor KM to engage. The entire power system is then powered on and supplies power to the downstream devices through the multi-channel power output circuit. In case of an emergency, pressing any emergency stop switch in the emergency stop circuit or the emergency stop switch connected to the emergency stop expansion interface will disconnect the input circuit composed of S11 and S12 of the safety relay HF and the output circuit composed of safety momentary contacts 13 and 14. The coil of the AC contactor KM is de-energized, and the AC contactor KM is disconnected. At this time, the entire system power supply is cut off, realizing the emergency stop of the system power supply.

[0049] like Figure 3As shown, the power management module (PMU) of this embodiment includes an MCU chip and a voltage and current measurement circuit. The DC-DC voltage conversion module (DC12V) supplies power to the coils of each relay switch K1-K8. The MCU chip of the power management module (PMU) can be connected to the coils of each relay switch K1-K8 in each power output circuit through its signal output terminal to control each relay switch K1-K8. The voltage and current measurement circuit is connected to the output terminal of each power output circuit through cables to collect the voltage and current data output by each power output circuit and evaluate the power output status of the system in real time to ensure that each device receives a stable and compliant power supply, thus realizing intelligent management of power output.

[0050] In some embodiments, the DC12V power supply circuit for relay switches K1-K8 is further connected in series with multiple interlocking circuits Interlock1-Interlock4. These interlocking circuits can be safely interlocked with the emergency stop extension interfaces EXT1-EXT4 in the emergency stop circuit. This ensures that when the equipment fails, is under maintenance, or is shut down in an emergency, the coil power supply of the control switch in the power output circuit is automatically cut off when the emergency stop switch is pressed. The Interlock status of these interlocking circuits is then uploaded to the power management module (PMU) to ensure that the power management module monitors the status of the emergency stop circuit and the interlocking circuits.

[0051] It should be noted that in this embodiment, four interlocking circuits, Interlock1-Interlock4, are connected in series in the power supply system. In other embodiments, the interlocking circuits can be set as needed, and their number is not specifically limited.

[0052] In some embodiments, the main power circuit further includes a temperature and humidity acquisition circuit, which is connected to the power management module (PMU). The PMU can monitor the temperature and humidity of the power system's operating environment in real time through the temperature and humidity acquisition circuit to ensure that the system operates under suitable conditions. When the ambient temperature or humidity exceeds the preset range, the system can take corresponding protective measures to prevent equipment failure or damage caused by environmental factors.

[0053] The working principle of the power management module (PMU) is as follows: After the power system is connected to the plant power supply, pressing the power start button powers on the DC12V and FAN_POWER (fan power supply), and then the PMU starts powering on. The PMU receives temperature and humidity values ​​from various temperature and humidity monitoring points in the power system and compares them with preset temperature and humidity thresholds. If an abnormality is found, a risk warning is issued and power is stopped. After the temperature and humidity return to normal, the voltage and current measurement circuit in the PMU tests the voltage and current values ​​of the three-phase power supply and the fan power supply through cable 2 and compares the test results with the corresponding thresholds. If an abnormality is found, a risk warning is issued and power is stopped. After the voltage and current values ​​return to normal, the entire system performs a fan self-test. The self-test process includes: the PMU's MCU chip sends fan speed commands to each fan control board 1, 2, 3, or 4 in the system through the RS485 bus and cable 3, then reads back the fan speed information and compares whether the sent fan speeds are consistent with the read-back fan speeds. If they are consistent, it indicates that the fan is working normally; if they are inconsistent, it indicates that the fan is malfunctioning. After the fan self-test passes, the PMU checks the status of the Interlock circuit. If it is abnormal, it stops powering on and prompts that the Interlock circuit is abnormal. After the Interlock circuit is normal, the MCU chip controls each switch (K1 to K8) to be turned on in sequence through cable 1. If the Interlock circuit is connected normally, each module (DC48V, PDU and AMP1-AMP4) is powered on in sequence, and the power system completes the self-test of the entire power-on process.

[0054] It should be noted that the PMU determines the status of the interlock circuit based on the voltage state, storing this status bit. If it is not functioning properly, an error message will be displayed. Relevant information during the power-on process is stored in the MCU and transmitted to the PC via RS485 to take appropriate measures, ensuring the safety and reliability of the entire power supply system.

[0055] In some embodiments, after the power system is powered on, the PMU operates in two modes: polling mode and debugging mode. Users can choose the appropriate PMU mode based on their specific needs. Polling mode is typically used during mass production, while debugging mode is used for troubleshooting. When the PMU operates in polling mode, the polling interval is 2 seconds. During polling, information such as the voltage and current of the three-phase power supply, the voltage and current of each power output circuit, fan speed, and the temperature and humidity of the power system are sequentially stored and uploaded to the PC. When an abnormality occurs, the PC will take appropriate measures. The fan speed will automatically adjust based on the read-back temperature information. For example, if the PMU reads the temperature of each temperature and humidity monitoring point in the power system and finds that the temperature at a certain monitoring point is high, the PMU will send a speed control command to the corresponding fan control board to increase the speed of the corresponding fan. Similarly, if the temperature at a certain monitoring point is low, the speed of the corresponding fan will be reduced, allowing the fan speed to change with the temperature of the power system. Since the temperature change is mainly determined by the load of the power system, the noise of the power system also changes with the load, minimizing noise pollution under low power conditions. In debug mode, you can turn a power output circuit on or off as needed, set the speed of each fan and read back the speed of the corresponding fan, measure voltage and current and set the number of sampling points and sampling interval as needed, and process the sampled data by reading back the sampled data. This allows you to easily troubleshoot related problems in the power system without disassembling the equipment, bringing great convenience to use and maintenance.

[0056] In some embodiments, a current-limiting device, such as a fuse or a current-limiting resistor, can be installed between the output side of the AC contactor KM and the relay switches K1-K8 of each power output circuit. This effectively limits the output current and prevents equipment damage or safety accidents caused by excessive current. Specific examples of the current-limiting device include... Figure 3 The FU1-FU9 shown can limit current and protect the equipment from damage. In addition, it should be noted that in other embodiments, the power management module (PMU) can also perform functions such as power current detection and fan speed detection without the FU1-FU9 current limiting devices.

[0057] based on Figure 3As shown, the high-power power supply system in this embodiment can provide multiple power outputs. For example, the power distribution circuit PDU can provide 220V AC voltage and power each device through a power strip. The AC output circuits 220VAC and 110VAC can convert 380V AC voltage into a smaller AC voltage and supply it to the corresponding device. The DC output circuit DC48V can convert 380V AC voltage into a smaller DC voltage and supply it to the corresponding device. The fan power supply circuit FAN_POWER can convert 380V AC voltage into the operating voltage required by the fan control board to ensure that the fan can work normally. In addition, the power management module PMU can also be connected to the fan control board through the bus cable 3 to monitor and control the fan speed in real time, ensuring that the fan operates within a suitable speed range to meet the system's heat dissipation requirements.

[0058] It should be noted that the high-power power supply system provided in this application adopts a standard rack structure, and each power supply adopts a modular design, such as... Figure 3 As shown, the AC output circuits AMP1 to AMP4 can be flexibly configured according to requirements, with the number ranging from 1 to 4, and can be selected and set as needed; the number of DC48V output circuits can also be configured according to requirements, ranging from 1 to 3. At the same time, about 6U of expansion space is reserved at the top of the power cabinet for the placement of third-party instruments and meters, etc.

[0059] In summary, this application's embodiment, by designing a main power supply circuit including an air switch, AC contactor, DC voltage conversion module, and several power output circuits, can stably obtain power from a three-phase power source and provide the required DC or AC voltage to various devices through multiple power output circuits. Simultaneously, the power management module can monitor and control the on / off status of each power output circuit in real time, achieving intelligent power distribution and management. The main power supply circuit of this application also includes an emergency stop circuit, enabling rapid power cut-off in emergencies, and includes multiple emergency stop expansion interfaces, allowing the connection of emergency stop switches for external devices, increasing the system's flexibility and scalability. Furthermore, the exception circuit design provides additional power supply channels that can be used to power specific devices (such as a host computer and external power meters), further enhancing the system's flexibility.

[0060] Therefore, the high-power power supply system provided in this application has at least the following technical advantages:

[0061] 1. The high-power power supply system provided in this application can achieve high power, up to 30KW, and has multiple functions such as power-on sequence, power monitoring, fan speed readback detection, temperature and humidity regulation and monitoring, multiple extended emergency stop circuit interfaces and Interlock (interlocking circuit) interfaces. It has high power density and flexible configuration.

[0062] 2. The high-power power supply system in this application has high safety performance and strong expandability through its design with an expandable emergency stop circuit interface and an Interlock (interlocking circuit) interface;

[0063] 3. The emergency stop circuit design in this application uses a safety relay. Unlike the use of conventional safety relays, in this application, the emergency stop switch is connected in series with the functional pin of the safety relay, which increases the impedance of the entire emergency stop circuit to 15Ω~30Ω. This greatly increases the number of emergency stop switches connected in series, and the impedance of the AC contactor winding circuit is very low, ensuring the reliable operation of the AC contactor and achieving the purpose of expansion.

[0064] It should be noted that the embodiments described in this application are merely some embodiments, not all embodiments. The components of the embodiments of this application typically described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the above detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0065] The terms "first, second, third, etc." or similar terms such as module A, module B, module C, etc., used in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that a specific order or sequence may be interchanged where permitted so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0066] In the above description, the labels indicating the steps do not necessarily mean that the steps will be executed. They may include intermediate steps or be replaced by other steps. Where permissible, the order of the steps may be interchanged or executed simultaneously.

[0067] The term "comprising" as used in the specification and claims should not be construed as limiting itself to what follows; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the mentioned feature, integral, step, or component, but does not exclude the presence or addition of one or more other features, integrals, steps, or components, or groups thereof. Thus, the statement "device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0068] The terms "an embodiment" or "an embodiment" as used in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment of this application. Therefore, the terms "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0069] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this application, all of which fall within the scope of protection of this application.

Claims

1. A high-power power supply system, characterized in that, Includes the main power supply circuit and the exception circuit; The main power supply circuit includes a first switch, an AC contactor, a DC voltage conversion module, a power management module, and several power output circuits. The input side of the first switch is connected to the power supply side of the three-phase power supply, and the output side is connected to the input side of the AC contactor. The output side of the AC contactor is connected to the several power output circuits. One output of the AC contactor is converted into DC voltage by the DC voltage conversion module to power the power management module. The power management module is connected to the control switches of the several power output circuits to monitor and control the on / off state of the several power output circuits. The several power output circuits are used to convert the input voltage into power to supply power to various devices. The main power supply circuit also includes an emergency stop circuit, in which the coil of the AC contactor is connected in series. The emergency stop circuit includes several emergency stop expansion interfaces connected in series for connecting emergency stop switches of external devices in series. The exception circuit includes a second switch, the input side of which is connected to one power supply of the three-phase power supply, and the output side is connected to the host computer and an external power source meter respectively.

2. The system according to claim 1, characterized in that, The emergency stop circuit also includes a safety relay; The coil of the AC contactor is connected in series with an output circuit of the safety relay, and the output circuit is also connected in series with a normally open switch and a normally closed switch; The plurality of emergency stop expansion interfaces are connected in series to an input circuit of the safety relay, and the input circuit is also connected in series to at least one emergency stop switch, which forms an interlocked connection with at least one emergency stop expansion interface.

3. The system according to claim 1, characterized in that, The main power supply circuit also includes an interlocking circuit connected in series between the control switches of the DC voltage conversion module and several power output circuits.

4. The system according to claim 1, characterized in that, The main power circuit also includes a temperature and humidity acquisition circuit connected to the power management module.

5. The system according to claim 1, characterized in that, The power management module includes a voltage and current measurement circuit, which is connected to the output terminals of several power output circuits.

6. The system according to claim 1, characterized in that, The power output circuit includes at least one of the following: Power distribution circuit, AC output circuit, DC output circuit.

7. The system according to claim 1 or 6, characterized in that, The power output circuit also includes a fan power supply circuit, which is used to convert the input voltage into the operating voltage required by the system's fan control board. The power management module is connected to the fan control board via a bus cable and is used to monitor and control the speed of the system fan.

8. The system according to claim 1, characterized in that, Each of the power output circuits also includes a current-limiting device connected in series.

9. The system according to claim 1, characterized in that, The first switch and the second switch are air switches.

10. The system according to claim 1, characterized in that, The control switch includes a relay switch.

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