An intelligent power outage prevention power supply control circuit for a computer room

Abstract

The present invention discloses an intelligent power supply control circuit for a computer room, which relates to the technical field of power supply prevention for computer rooms. The circuit includes a microcontroller module. When the input power module is supplying power normally and the power of the backup power module is lower than the self-discharge charging threshold, the microcontroller module controls the power control module to supply power to the backup power module according to the detection result of the status detection module. When the input power module is powered off, the generator is controlled to supply power. When the generator is started, the backup power module cooperates with the power control module to supply power to the input power module. When the input power module is supplying power normally but the power regulation is abnormal, the power control module cooperates with the power control module to regulate the power of the input power module and supply power to a first equipment module. The backup power module can be supplied with power in a superimposed manner with an adjacent second IT power supply. The intelligent power supply control circuit for a computer room according to the present invention can maintain power stability under different power supply states, improve power supply stability, and increase power utilization.

Description

Technical Field

[0001] The invention relates to the technical field of power-off prevention in a computer room, in particular to an intelligent power-off prevention power supply control circuit for a computer room. Background Art

[0002] The computer room is the core place of modern information technology infrastructure, mainly used to store servers and networks. The equipment in the computer room is powered by the power grid and is in operation 24 hours a day. In order to ensure the stable operation of the computer room and avoid power outages, the computer room often uses generators to provide uninterrupted power supply when the power grid is outage. The computer room is composed of multiple groups of IT equipment and other equipment. In order to avoid power outages of individual IT equipment, a single UPS power supply is also prepared for each IT equipment for uninterruptible power supply control. However, it is impossible to reasonably control the uninterruptible power supply according to the power outage of the IT equipment or the power outage of the power grid. In addition, since the UPS power supply will self-discharge when it is not discharged, when the self-discharge reaches a certain level, it will reduce the efficiency of the backup power supply, so it needs to be improved. Summary of the Invention

[0003] The embodiment of the present invention provides an intelligent power supply control circuit for preventing power failure in a computer room, so as to solve the problems raised in the above background technology.

[0004] According to an embodiment of the present invention, there is provided an intelligent power outage prevention power supply control circuit for a computer room, comprising: an input power module connected to a power control module, configured to perform dual-path power conversion processing on the input AC power or the power provided by the generator and output a first power and a second power respectively, and to perform power regulation on the first power or the third power transmitted by the power control module and output a fourth power;

[0005] a power control module, connected to the input power module, configured to perform power regulation on the second electric energy and output the fifth electric energy;

[0006] a backup power supply module, connected to the power control module, configured to receive and store the fifth electric energy and, when the fifth electric energy is greater than the charging voltage, stop the energy storage operation, release the stored electric energy or superimpose the released electric energy with the electric energy provided by the second IT power supply and output the third electric energy, and output the second detection signal when the third electric energy is lower than the self-discharge charging threshold;

[0007] a state detection module connected to the input power module, configured to perform voltage-dividing sampling on the second electric energy and output a first detection signal, perform voltage-dividing sampling on the fourth electric energy and output a third detection signal, and output a first control signal when the first detection signal is output and the third detection signal is not output;

[0008] a microcontrol module connected to the status detection module, the input power module, the backup power module, and the power control module, and configured to control the power control module to perform power regulation when receiving a first detection signal and a second detection signal; control the generator of the input power module to start and output a second control signal when not receiving the first detection signal; stop outputting the second control signal after the generator satisfies power supply requirements; control the power control module to perform power regulation when receiving the first control signal; and control the backup power module to perform power superposition when receiving the second detection signal while outputting the second control signal;

[0009] a power control module connected to the microcontrol module, the backup power module, the status detection module, and the power control module, and configured to transmit the fifth power to the first device module upon receiving a first control signal, and to transmit the third power to the input power module upon receiving a second control signal;

[0010] The first device module is connected to the input power module and the power control module, and is configured to receive the fourth power or the fifth power and supply power to the IT equipment.

[0011] As a further embodiment of the present invention, the input power module includes a grid interface, a first conversion device, a power conditioning device, a generator, and a second conversion device; the first device module includes a first diode, a first capacitor, and a first IT device; and the microcontroller module includes a first controller.

[0012] Preferably, the first end of the grid interface is connected to the first end of the first conversion device, the first end of the generator, and the first end of the second conversion device; the second end of the grid interface is connected to the second end of the first conversion device, the second end of the generator, and the second end of the second conversion device; the third end of the first conversion device is connected to the first end of the power conditioning device and the power control module; the fourth end of the first conversion device is connected to the second end of the power conditioning device and the ground; the control end of the generator is connected to the IO3 end of the first controller; the third end of the second conversion device is connected to the power control module; the fourth end of the second conversion device is grounded; the third end of the power conditioning device is connected to the anode of the first diode; the cathode of the first diode is connected to the first end of the first IT device and is connected to the fourth end of the power conditioning device, the second end of the first IT device, and the ground through the first capacitor.

[0013] As a further solution of the present invention: the power control module includes a first power tube, a second diode, a first inductor and a second capacitor;

[0014] Preferably, the drain of the first power tube is connected to the third end of the second conversion device, the source of the first power tube is connected to the cathode of the second diode and connected to the first end of the second capacitor through the first inductor, the second end of the second capacitor is connected to the anode of the second diode and the fourth end of the second conversion device, and the gate of the first power tube is connected to the IO1 end of the first controller.

[0015] As a further solution of the present invention: the state detection module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first inverter and a first logic chip;

[0016] Preferably, one end of the first resistor is connected to the third end of the power regulating device, the other end of the first resistor is connected to the input end of the first inverter and is connected to the fourth end of the power regulating device through the second resistor, the output end of the first inverter is connected to the B end of the first logic chip, the A end of the first logic chip is connected to one end of the third resistor and the IO2 end of the first controller and is connected to the fourth end of the second conversion device through the fourth resistor, the other end of the third resistor is connected to the third end of the second conversion device, and the Y end of the first logic chip is connected to the power control module and the IO4 end of the first controller.

[0017] As a further solution of the present invention: the backup power supply module includes a sixth resistor, a third diode, a fifth resistor, a second power transistor, a third capacitor, a first UPS device, a first thyristor, a second inverter, a third power transistor, a fourth capacitor, and a second IT power supply;

[0018] Preferably, the source of the second power tube is connected to the first end of the second capacitor and is connected to the cathode of the third diode through a sixth resistor, the anode of the third diode is connected to the gate of the second power tube and is connected to the cathode of the first thyristor, one end of the fourth capacitor, the second end of the second IT power supply, and the second end of the second capacitor through a fifth resistor, the anode of the first thyristor is connected to the source of the third power tube and the second end of the first UPS device and is connected to the drain of the second power tube and the first end of the first UPS device through a third capacitor, the drain of the third power tube is connected to the first end of the second IT power supply and the other end of the fourth capacitor, the control end of the first thyristor is connected to the output end of the second inverter, and the input end of the second inverter is connected to the gate of the third power tube and the IO5 end of the first controller.

[0019] As a further solution of the present invention: the backup power supply module further includes a seventh resistor, an eighth resistor, a first reference power supply and a first comparator;

[0020] Preferably, the inverting end of the first comparator is connected to one end of the eighth resistor and connected to the first end of the first UPS device through the seventh resistor, the other end of the eighth resistor is connected to the second end of the first UPS device, the non-inverting end of the first comparator is connected to the first reference power supply, and the output end of the first comparator is connected to the IO7 end of the first controller.

[0021] As a further solution of the present invention: the power control module includes a fourth diode, a fourth power tube, a fifth power tube and a fifth diode;

[0022] Preferably, the anode of the fourth diode is connected to the source of the second power tube, the first end of the second capacitor and the drain of the fifth power tube, the cathode of the fourth diode is connected to the drain of the fourth power tube, the source of the fourth power tube is connected to the first end of the power regulation device, the source of the fifth power tube is connected to the anode of the fifth diode, the cathode of the fifth diode is connected to the first end of the first IT device, the gate of the fourth power tube is connected to the IO6 end of the first controller, and the gate of the fifth power tube is connected to the Y end of the first logic chip.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent anti-power-off power control circuit for the computer room of the present invention can be controlled by the microcontrol module according to the detection result of the status detection module. When the input power module is supplying power normally and the power of the backup power module is lower than the self-discharge charging threshold, the power control module will be controlled to supply power to the backup power module. When the input power module is powered off, the generator will be controlled to supply power, and when the generator fails to supply power in time, the backup power module will cooperate with the power control module to supply power to the input power module. When the input power module is supplying power normally but the power regulation is abnormal, the power control module will cooperate with the power control module to regulate the power of the input power module and supply power to the first device module. During the power supply period of the first UPS device in the backup power module, the power is lower than the self-discharge charging threshold, and the first UPS device will be controlled to supply power in superposition with the adjacent second IT power supply, thereby maintaining the power stability under different power supply states, improving the power supply stability and improving the utilization rate of power. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. 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.

[0025] Figure 1 The present invention provides a block diagram of the principle of an intelligent power outage prevention power supply control circuit for a computer room.

[0026] Figure 2 A circuit diagram of an intelligent power outage prevention power control circuit for a computer room provided by an embodiment of the present invention.

[0027] Figure 3 A circuit diagram of a backup power supply module provided in an embodiment of the present invention.

[0028] Figure 4This is a circuit diagram of a power control module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In one embodiment, see Figure 1 , an intelligent anti-power-off power control circuit for a computer room, comprising:

[0031] The input power module 1 is connected to the power control module 6 and is used to perform dual-channel power conversion processing on the input AC power or the power provided by the generator and output the first power and the second power respectively, and to perform power regulation on the first power or the third power transmitted by the power control module 6 and output the fourth power;

[0032] a power control module 3 connected to the input power module 1 and configured to perform power regulation on the second electric energy and output the fifth electric energy;

[0033] The backup power supply module 4 is connected to the power control module 3 and is configured to receive and store the fifth electric energy and, when the fifth electric energy is greater than the charging voltage, stop the energy storage operation and release the stored electric energy or superimpose the released electric energy with the electric energy provided by the second IT power supply to output the third electric energy; and output the second detection signal when the third electric energy is lower than the self-discharge charging threshold;

[0034] a state detection module 5 connected to the input power module 1, configured to perform voltage division sampling on the second electric energy and output a first detection signal, perform voltage division sampling on the fourth electric energy and output a third detection signal, and output a first control signal when the first detection signal is output and the third detection signal is not output;

[0035] The microcontrol module 7 is connected to the status detection module 5, the input power module 1, the backup power module 4, and the power control module 3, and is used to control the power control module 3 to perform power regulation when receiving the first detection signal and the second detection signal; when not receiving the first detection signal, control the generator of the input power module 1 to start and output the second control signal; after the generator satisfies the power supply requirement, stop outputting the second control signal; when receiving the first control signal, control the power control module 3 to perform power regulation; and when receiving the second detection signal while outputting the second control signal, control the backup power module 4 to perform power superposition;

[0036] The power control module 6 is connected to the micro-control module 7, the backup power module 4, the status detection module 5 and the power control module 3, and is configured to transmit the fifth power to the first device module 2 upon receiving the first control signal, and transmit the third power to the input power module 1 upon receiving the second control signal;

[0037] The first equipment module 2 is connected to the input power module 1 and the power control module 6 , and is configured to receive the fourth power or the fifth power and supply power to the IT equipment.

[0038] In a specific embodiment, the input power module 1 may adopt an input power circuit composed of an electric energy conversion device, a generator, a grid interface, and a power regulation device, which may perform electric energy conversion and power regulation processing on the input AC electric energy, and the generator may perform power generation; the first equipment module 2 may adopt a first equipment circuit composed of diodes, capacitors, and IT equipment, which may perform rectification and filtering processing on the input electric energy and supply power to the IT equipment; the power control module 3 may adopt a power control circuit composed of field effect tubes, diodes, inductors, and capacitors, which may perform power step-down regulation; the backup power module 4 may adopt a backup power circuit composed of field effect tubes, diodes, thyristors, UPS power supplies, IT power supplies, etc., which may perform power transmission and overvoltage power-off control, energy storage and discharge control, and communicate with the backup power module 4. Adjacent IT power supplies perform power superposition, perform power detection, and compare the voltage of the detected signal with a set self-discharge charging threshold. The self-discharge charging threshold is set as needed and is not specifically limited. The above-mentioned state detection module 5 can use a state detection circuit composed of resistors, inverters and logic chips to perform voltage division detection on the input power module 1 and detect whether the input power module 1 is performing power conversion and power regulation normally. The above-mentioned power control module 6 can use a power control circuit composed of field-effect transistors and diodes to control the transmission path of power. The above-mentioned microcontroller module 7 can use a microcontroller circuit composed of a single-chip microcomputer, which integrates many components such as an arithmetic unit, a controller, a memory, and an input / output device to realize functions such as signal processing, data storage, module control, and timing control.

[0039] In another embodiment, see Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The input power module 1 includes a grid interface, a first conversion device, a power regulation device, a generator, and a second conversion device; the first device module 2 includes a first diode D1, a first capacitor C1, and a first IT device; the microcontroller module 7 includes a first controller U1;

[0040] Specifically, the first end of the grid interface is connected to the first end of the first conversion device, the first end of the generator, and the first end of the second conversion device; the second end of the grid interface is connected to the second end of the first conversion device, the second end of the generator, and the second end of the second conversion device; the third end of the first conversion device is connected to the first end of the power conditioning device and the power control module 6; the fourth end of the first conversion device is connected to the second end of the power conditioning device and the ground; the control end of the generator is connected to the IO3 end of the first controller U1; the third end of the second conversion device is connected to the power control module 3; the fourth end of the second conversion device is grounded; the third end of the power conditioning device is connected to the anode of the first diode D1; the cathode of the first diode D1 is connected to the first end of the first IT device and is connected to the fourth end of the power conditioning device, the second end of the first IT device, and the ground through the first capacitor C1.

[0041] In a specific embodiment, the above-mentioned first conversion device and the second conversion device can both be composed of a transformer, a rectifier and a filter to perform power conversion processing; the above-mentioned power regulation device can be composed of a BUCK circuit to perform power regulation; the above-mentioned first controller U1 can optionally use an STM32 microcontroller.

[0042] Furthermore, the power control module 3 includes a first power tube Q1, a second diode D2, a first inductor L1 and a second capacitor C2;

[0043] Specifically, the drain of the first power tube Q1 is connected to the third end of the second conversion device, the source of the first power tube Q1 is connected to the cathode of the second diode D2 and connected to the first end of the second capacitor C2 through the first inductor L1, the second end of the second capacitor C2 is connected to the anode of the second diode D2 and the fourth end of the second conversion device, and the gate of the first power tube Q1 is connected to the IO1 end of the first controller U1.

[0044] In a specific embodiment, the first power tube Q1 can be an N-channel field effect tube, which cooperates with the second diode D2, the first inductor L1 and the second capacitor C2 to perform power regulation. The specific regulation degree is determined by the IO1 terminal of the first controller U1.

[0045] Furthermore, the state detection module 5 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first inverter INV1 and a first logic chip J1;

[0046] Specifically, one end of the first resistor R1 is connected to the third end of the power regulation device, the other end of the first resistor R1 is connected to the input end of the first inverter INV1 and is connected to the fourth end of the power regulation device through the second resistor R2, the output end of the first inverter INV1 is connected to the B end of the first logic chip J1, the A end of the first logic chip J1 is connected to one end of the third resistor R3 and the IO2 end of the first controller U1 and is connected to the fourth end of the second conversion device through the fourth resistor R4, the other end of the third resistor R3 is connected to the third end of the second conversion device, and the Y end of the first logic chip J1 is connected to the power control module 6 and the IO4 end of the first controller U1.

[0047] In a specific embodiment, the first inverter INV1 may be a NOT gate chip; and the first logic chip J1 may be an AND gate chip.

[0048] Furthermore, the backup power module 4 includes a sixth resistor R6, a third diode D3, a fifth resistor R5, a second power tube Q2, a third capacitor C3, a first UPS device, a first thyristor S1, a second inverter INV2, a third power tube Q3, a fourth capacitor C4 and a second IT power supply;

[0049] Specifically, the source of the second power tube Q2 is connected to the first end of the second capacitor C2 and is connected to the cathode of the third diode D3 through the sixth resistor R6. The anode of the third diode D3 is connected to the gate of the second power tube Q2 and is connected to the cathode of the first thyristor S1, one end of the fourth capacitor C4, the second end of the second IT power supply, and the second end of the second capacitor C2 through the fifth resistor R5. The anode of the first thyristor S1 is connected to the source of the third power tube Q3 and the second end of the first UPS device and is connected to the drain of the second power tube Q2 and the first end of the first UPS device through the third capacitor C3. The drain of the third power tube Q3 is connected to the first end of the second IT power supply and the other end of the fourth capacitor C4. The control end of the first thyristor S1 is connected to the output end of the second inverter INV2. The input end of the second inverter INV2 is connected to the gate of the third power tube Q3 and the IO5 end of the first controller U1.

[0050] In a specific embodiment, the second power tube Q2 may be a P-channel field effect tube; the first thyristor S1 may be a unidirectional thyristor; the sixth resistor R6 and the third diode D3 may set the charging voltage; the second inverter INV2 may be a NOT gate chip; the third power tube Q3 may be an N-channel field effect tube; and the second IT power supply is a second UPS power supply provided by a second IT device adjacent to the first IT device.

[0051] Furthermore, the backup power module 4 further includes a seventh resistor R7, an eighth resistor R8, a first reference power supply VREF and a first comparator A1;

[0052] Specifically, the inverting end of the first comparator A1 is connected to one end of the eighth resistor R8 and is connected to the first end of the first UPS device through the seventh resistor R7. The other end of the eighth resistor R8 is connected to the second end of the first UPS device. The non-inverting end of the first comparator A1 is connected to the first reference power supply VREF. The output end of the first comparator A1 is connected to the IO7 end of the first controller U1.

[0053] In a specific embodiment, the first reference power supply VREF sets the self-discharge charge threshold; the first comparator A1 can be an LM358 comparator.

[0054] Furthermore, the power control module 6 includes a fourth diode D4, a fourth power tube Q4, a fifth power tube Q5 and a fifth diode D5;

[0055] Specifically, the anode of the fourth diode D4 is connected to the source of the second power tube Q2, the first end of the second capacitor C2 and the drain of the fifth power tube Q5, the cathode of the fourth diode D4 is connected to the drain of the fourth power tube Q4, the source of the fourth power tube Q4 is connected to the first end of the power regulation device, the source of the fifth power tube Q5 is connected to the anode of the fifth diode D5, the cathode of the fifth diode D5 is connected to the first end of the first IT device, the gate of the fourth power tube Q4 is connected to the IO6 end of the first controller U1, and the gate of the fifth power tube Q5 is connected to the Y end of the first logic chip J1.

[0056] In a specific embodiment, both the fourth power tube Q4 and the fifth power tube Q5 can be N-channel field effect tubes.

[0057] In a computer room intelligent power outage prevention power supply control circuit according to this embodiment, AC power is connected to a power grid interface, a first changing device and a second converting device perform power conversion processing and output first power and second power respectively, the first power is regulated by a power regulating device, rectified and filtered by a first diode D1 and a first capacitor C1, and supplies power to a first IT device, when the power of the first UPS device is lower than the self-discharge charging threshold set by the first reference power supply VREF after being sampled by a seventh resistor R7 and an eighth resistor R8, the first comparator A1 outputs a high level and is received by the IO7 terminal of the first controller U1, and the I The O1 terminal controls the first power tube Q1 to be turned on, and cooperates with the second diode D2, the first inductor L1 and the second capacitor C2 to perform power regulation. The output electric energy is transmitted by the second power tube Q2 and satisfies the charging control of the first UPS device. When the grid interface is normally connected to the AC power but the power regulation device is powered off, it means that the first conversion device or the power regulation device has a fault. The Y terminal of the first logic chip J1 will output a high level, which is received by the IO4 terminal of the first controller U1 and triggers the fifth power tube Q5 to be turned on. At this time, the IO1 terminal of the first controller U1 will change the conduction degree of the first power tube Q1, so that the power-regulated electric energy passes through the fifth power tube Q5. After the power tube Q5 transmits, the power supply control for the first IT device is satisfied. If the electric energy at this time is greater than the charging voltage set by the sixth resistor R6 and the third diode D3, the second power tube Q2 will be controlled to be cut off, and the charging work of the first UPS device will be stopped. When the grid interface is powered off, the IO3 end of the first controller U1 will trigger the generator to start. During the generator startup, the IO6 end of the first controller U1 will control the fourth power tube Q4 to be turned on, so that the electric energy released by the first UPS device is transmitted to the power conditioning device through the second power tube Q2 and the fourth power tube Q4, so as to provide the required working power for the first IT device until the generator is started. After completion and the output electric energy meets the power supply demand, the IO6 end of the first controller U1 controls the fourth power tube Q4 to be cut off. Similarly, when the generator cannot supply power normally, power will be supplied through the first UPS device. During the power supply period of the first UPS device, if the electric energy provided by the first UPS device is lower than the self-discharge charging threshold set by the first reference power supply VREF, the IO5 end of the first controller U1 will control the conduction state of the third power tube Q3 and control the first thyristor S1 to be cut off, so that the first UPS device and the third capacitor C3 perform power superposition supply work with the second IT power supply and the fourth capacitor C4 to meet the power supply of the first IT power supply.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An intelligent power supply control circuit for preventing power failure in a computer room, characterized in that: The circuit includes: An input power module, connected to the power control module, configured to perform dual-path power conversion processing on the input AC power or the power provided by the generator and output a first power and a second power, respectively, and to perform power regulation on the first power or the third power transmitted by the power control module and output a fourth power; a power control module, connected to the input power module, configured to perform power regulation on the second electric energy and output the fifth electric energy; a backup power supply module, connected to the power control module, configured to receive and store the fifth electric energy and, when the fifth electric energy is greater than the charging voltage, stop the energy storage operation, release the stored electric energy or superimpose the released electric energy with the electric energy provided by the second IT power supply and output the third electric energy, and output the second detection signal when the third electric energy is lower than the self-discharge charging threshold; a state detection module connected to the input power module, configured to perform voltage-dividing sampling on the second electric energy and output a first detection signal, perform voltage-dividing sampling on the fourth electric energy and output a third detection signal, and output a first control signal when the first detection signal is output and the third detection signal is not output; a microcontrol module connected to the status detection module, the input power module, the backup power module, and the power control module, and configured to control the power control module to perform power regulation when receiving a first detection signal and a second detection signal; control the generator of the input power module to start and output a second control signal when not receiving the first detection signal; stop outputting the second control signal after the generator satisfies power supply requirements; control the power control module to perform power regulation when receiving the first control signal; and control the backup power module to perform power superposition when receiving the second detection signal while outputting the second control signal; a power control module connected to the microcontrol module, the backup power module, the status detection module, and the power control module, and configured to transmit the fifth power to the first device module upon receiving a first control signal, and transmit the third power to the input power module upon receiving a second control signal; The first device module is connected to the input power module and the power control module, and is configured to receive the fourth power or the fifth power and supply power to the IT equipment.

2. The intelligent power-off prevention power supply control circuit for a computer room according to claim 1, characterized in that: The input power module includes a grid interface, a first conversion device, a power conditioning device, a generator, and a second conversion device; the first device module includes a first diode, a first capacitor, and a first IT device; and the microcontroller module includes a first controller. The first end of the grid interface is connected to the first end of the first conversion device, the first end of the generator, and the first end of the second conversion device; the second end of the grid interface is connected to the second end of the first conversion device, the second end of the generator, and the second end of the second conversion device; the third end of the first conversion device is connected to the first end of the power conditioning device and the power control module; the fourth end of the first conversion device is connected to the second end of the power conditioning device and the ground; the control end of the generator is connected to the IO3 end of the first controller; the third end of the second conversion device is connected to the power control module; the fourth end of the second conversion device is grounded; the third end of the power conditioning device is connected to the anode of the first diode; the cathode of the first diode is connected to the first end of the first IT device and is connected to the fourth end of the power conditioning device, the second end of the first IT device, and the ground through the first capacitor.

3. The intelligent power-off prevention power supply control circuit for a computer room according to claim 2, characterized in that: The power control module includes a first power tube, a second diode, a first inductor and a second capacitor; The drain of the first power tube is connected to the third end of the second conversion device, the source of the first power tube is connected to the cathode of the second diode and connected to the first end of the second capacitor through the first inductor, the second end of the second capacitor is connected to the anode of the second diode and the fourth end of the second conversion device, and the gate of the first power tube is connected to the IO1 end of the first controller.

4. The intelligent power-off prevention power supply control circuit for a computer room according to claim 3, characterized in that: The state detection module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first inverter and a first logic chip; One end of the first resistor is connected to the third end of the power regulating device, the other end of the first resistor is connected to the input end of the first inverter and is connected to the fourth end of the power regulating device through the second resistor, the output end of the first inverter is connected to the B end of the first logic chip, the A end of the first logic chip is connected to one end of the third resistor and the IO2 end of the first controller and is connected to the fourth end of the second conversion device through the fourth resistor, the other end of the third resistor is connected to the third end of the second conversion device, and the Y end of the first logic chip is connected to the power control module and the IO4 end of the first controller.

5. The intelligent power-off prevention power supply control circuit for a computer room according to claim 4, characterized in that: The backup power supply module includes a sixth resistor, a third diode, a fifth resistor, a second power tube, a third capacitor, a first UPS device, a first thyristor, a second inverter, a third power tube, a fourth capacitor and a second IT power supply; The source of the second power tube is connected to the first end of the second capacitor and is connected to the cathode of the third diode through the sixth resistor. The anode of the third diode is connected to the gate of the second power tube and is connected to the cathode of the first thyristor, one end of the fourth capacitor, the second end of the second IT power supply, and the second end of the second capacitor through the fifth resistor. The anode of the first thyristor is connected to the source of the third power tube and the second end of the first UPS device and is connected to the drain of the second power tube and the first end of the first UPS device through the third capacitor. The drain of the third power tube is connected to the first end of the second IT power supply and the other end of the fourth capacitor. The control end of the first thyristor is connected to the output end of the second inverter. The input end of the second inverter is connected to the gate of the third power tube and the IO5 end of the first controller.

6. The intelligent power-off prevention power supply control circuit for a computer room according to claim 5, characterized in that: The backup power supply module further includes a seventh resistor, an eighth resistor, a first reference power supply and a first comparator; The inverting end of the first comparator is connected to one end of the eighth resistor and connected to the first end of the first UPS device through the seventh resistor. The other end of the eighth resistor is connected to the second end of the first UPS device. The non-inverting end of the first comparator is connected to the first reference power supply. The output end of the first comparator is connected to the IO7 end of the first controller.

7. The intelligent power-off prevention power supply control circuit for a computer room according to claim 5, characterized in that: The power control module includes a fourth diode, a fourth power tube, a fifth power tube and a fifth diode; The anode of the fourth diode is connected to the source of the second power tube, the first end of the second capacitor and the drain of the fifth power tube, the cathode of the fourth diode is connected to the drain of the fourth power tube, the source of the fourth power tube is connected to the first end of the power regulation device, the source of the fifth power tube is connected to the anode of the fifth diode, the cathode of the fifth diode is connected to the first end of the first IT device, the gate of the fourth power tube is connected to the IO6 end of the first controller, and the gate of the fifth power tube is connected to the Y end of the first logic chip.

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