Double-circuit power supply switching module for intelligent dynamic environment host
By designing dual-channel power switching modules and protection modules in the intelligent dynamic ring host, the problem of easy failure of the dynamic ring host and unstable single-power supply in harsh environments is solved, and the automatic switching and power supply of dual-channel power supply is achieved.
Patent Information
- Application Number
- CN202422136376.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing mobile ring host is prone to failure or performance degradation when facing harsh environments or emergencies, and adopts a single power supply solution, which leads to inability to work when the power supply fails, affecting the stability of the computer room environmental monitoring.
A dual-channel power switching module for intelligent dynamic ring host is designed. By connecting the switching power supply to control the output main power supply or backup power supply, and using components such as voltage division unit, MOS tube unit and operation amplifier to realize automatic switching and protection of dual-channel power supply.
It realizes that even if there is an abnormality in one power supply, the other power supply can continue to work stably, ensure the normal operation of the intelligent dynamic ring host, and separate external and internal power supply through the protection module to prevent short circuit or overload problems from affecting the stability of the host.
Smart Images
Figure CN222996284U_ABST
Abstract
Description
Technical Field:
[0001] The utility model relates to the technical field of dynamic ring host products, and particularly refers to a dual-power supply switching module for an intelligent dynamic ring host. Background Art:
[0002] With the rapid development of information technology, as the core place for data processing and storage, the stable operation of computer rooms is crucial for the normal operation of enterprises.
[0003] As the core device for computer room management, the computer room monitoring host (i.e., the dynamic ring host) is responsible for real-time monitoring of various environmental parameters and equipment status in the computer room to ensure the safety and stability of the computer room environment. However, there are still some problems and disadvantages in the existing computer room monitoring host technology, which affect the efficiency and accuracy of computer room management. Due to the variety of equipment in the computer room, the data interfaces and communication protocols of different equipment are different, resulting in many difficulties for the monitoring host in data acquisition. Due to the particularity of the computer room environment, the monitoring host needs to run stably for a long time, have a high anti-interference ability, and also have a certain ability to survey the environment by itself. However, in the existing technology, the monitoring host is prone to failures or performance degradation when facing harsh environments or emergencies.
[0004] There are also some dynamic ring host solutions on the market now, but they all have problems such as single interface type and small number of interfaces. Moreover, the dynamic ring host usually adopts a single-power supply scheme, and when the power supply fails, the dynamic ring host will not be able to work, resulting in unstable operation of the entire dynamic ring host and affecting the monitoring of the entire computer room working environment.
[0005] In view of this, the inventor proposes the following technical solutions. Content of the Utility Model:
[0006] The purpose of the utility model is to overcome the deficiencies of the existing technology and provide a dual-power supply switching module for an intelligent dynamic ring host.
[0007] To solve the above technical problems, the present utility model adopts the following technical solutions: A dual-power supply switching module of an intelligent dynamic loop host is connected to a switching power supply to control the output of the main power supply or the standby power supply; wherein, the switching power supply is connected to a second power input terminal and can output the main power supply; the switching power supply is connected to a first power input terminal and can output the standby power supply; the dual-power supply switching module includes: a first voltage dividing unit and a first MOS transistor unit connected to the main power supply, a second voltage dividing unit connected to the standby power supply, a second MOS transistor unit, an operational amplifier U1 connected to the first voltage dividing unit and the second voltage dividing unit, and a first inverter U2 and a second inverter U3 connected to the operational amplifier U1. The first inverter U2 is connected to the first MOS transistor unit, and the second inverter U3 is connected to the second MOS transistor unit. Both the first MOS transistor unit and the second MOS transistor unit are connected to the power output terminal.
[0008] Furthermore, in the above technical solution, the first voltage dividing unit includes a voltage dividing resistor R5 and a voltage dividing resistor R7, and the voltage dividing resistor R5 and the voltage dividing resistor R7 are sequentially connected to the main power supply; the second voltage dividing unit includes a voltage dividing resistor R11 and a voltage dividing resistor R12, and the voltage dividing resistor R12 and the voltage dividing resistor R12 are sequentially connected to the standby power supply; both the voltage dividing resistor R7 and the voltage dividing resistor R11 are grounded, and the connection lines between the voltage dividing resistor R5 and the voltage dividing resistor R7 and between the voltage dividing resistor R11 and the voltage dividing resistor R12 are respectively connected to the inverting terminal and the non-inverting terminal of the operational amplifier U1.
[0009] Furthermore, in the above technical solution, the first MOS transistor unit includes MOS transistors Q1, Q2, and Q4, and the second MOS transistor unit includes MOS transistors Q5, Q6, and Q7. The MOS transistors Q1 and Q2 are sequentially connected to the main power supply; the MOS transistors Q6 and Q7 are sequentially connected to the standby power supply; the output terminal of the operational amplifier U1 is connected to the input terminal of the first inverter U2. The output terminal of the first inverter U2 is respectively connected to the MOS transistor Q4 and the input terminal of the second inverter U3. The output terminal of the second inverter U3 is connected to the MOS transistor Q5. The MOS transistor Q4 is connected to the MOS transistors Q1 and Q2 to control the on / off of the MOS transistors Q1 and Q2. The MOS transistor Q5 is connected to the MOS transistors Q6 and Q7 to control the on / off of the MOS transistors Q6 and Q7. Both the MOS transistor Q2 and the MOS transistor Q7 are connected to the power output terminal.
[0010] Furthermore, in the above technical solution, a Schottky diode D5 is also connected between the output terminal of the operational amplifier U1 and the input terminal of the first inverter U2. The D pole of the MOS transistor Q1 is connected to the main power supply, the S pole of the MOS transistor Q1 is connected to the S pole of the MOS transistor Q2, the G poles of the MOS transistor Q1 and the MOS transistor Q2 are both connected to the D pole of the MOS transistor Q4, the G pole of the MOS transistor Q4 is connected to the output terminal of the first inverter U2, the S poles of the MOS transistor Q4 and the MOS transistor Q5 are both grounded, the G pole of the MOS transistor Q5 is connected to the output terminal of the second inverter U3, the G poles of the MOS transistor Q6 and the MOS transistor Q7 are both connected to the D pole of the MOS transistor Q5, the S poles of the MOS transistor Q6 and the MOS transistor Q7 are connected to each other, the D pole of the MOS transistor Q6 is connected to the backup power supply, and the D poles of the MOS transistor Q2 and the MOS transistor Q7 are both connected to the power output terminal.
[0011] Furthermore, in the above technical solution, both the main power supply and the backup power supply are 12V. The main power supply and the backup power supply are connected to a first step-down voltage regulator chip, the first step-down voltage regulator chip is connected to a second step-down voltage regulator chip, the output terminal of the first step-down voltage regulator chip is connected to a +9V terminal, and the output terminal of the second step-down voltage regulator chip is connected to a +5V terminal.
[0012] Furthermore, in the above technical solution, the main power supply and the backup power supply are connected to a protection module.
[0013] Furthermore, in the above technical solution, the protection module is an overcurrent protection module, which includes a current limiting switch chip, and the IN pin of the current limiting switch chip is connected to the main power supply and the backup power supply.
[0014] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art: The power supply system of the present utility model adopts dual-power supply. Even when one power supply fails, it can still continue to work stably relying on the other power supply to ensure the normal operation of the intelligent dynamic environment monitoring host. When it is detected that the main power supply returns to normal, the dual-power supply switching module controls the output of the main power supply instead of the backup power supply. In addition, the present utility model also separates the external power supply and the internal power supply through the protection module. Even if problems such as short circuit and overload occur in the connected external devices, the intelligent dynamic environment monitoring host can still work stably. Description of the Drawings:
[0015] Figure 1 is the front view of the intelligent dynamic environment monitoring host;
[0016] Figure 2 is the rear view of the intelligent dynamic environment monitoring host;
[0017] Figure 3 is the structure diagram of the intelligent dynamic environment monitoring host including the present utility model;
[0018] Figure 4 is the circuit diagram of the protection module;
[0019] Figure 5 is the circuit diagram of the present utility model. Specific embodiments:
[0020] The present utility model will be further described below in conjunction with specific embodiments and the accompanying drawings.
[0021] See Figures 1-5 As shown, it is an intelligent dynamic loop host, which includes a housing 6, a switching power supply 2 and a PCB board 1 installed in the housing 6.
[0022] The PCB board 1 is provided with a first power input terminal 11, a second power input terminal 12, a dual-power switching module 3, a protection module 4, a communication module 5, two built-in temperature and humidity interfaces 13, an RS485 interface 14, an RS232 interface 15, a DI interface 16, a DO interface 17, a water leakage detection interface 18, a network interface 19, a power output interface 10, and an analog output interface 101; among them, the switching power supply 2 is connected to the second power input terminal 12 and can output a main power supply 102; the switching power supply 2 is connected to the first power input terminal 11 and can output a backup power supply 103; the dual-power switching module 3 is connected to the switching power supply 2 to control the output of the main power supply or the backup power supply; one path of the output main power supply or backup power supply is connected to the built-in temperature and humidity interface 13 and the communication module 5 for power supply; the other path of the output main power supply or backup power supply is connected to the protection module 4, and then the protection module 4 is connected to the RS485 interface 14, the RS232 interface 15, the DI interface 16, the DO interface 17, the water leakage detection interface 18, the power output interface 10, and the analog output interface 101 for power supply. The RS485 interface 14, the RS232 interface 15, the DI interface 16, the DO interface 17, the water leakage detection interface 18, the power output interface 10, and the analog output interface 101 are all exposed on the outer surface of the housing 6 and are used to connect to external devices / apparatus.
[0023] In this embodiment, the first power input terminal 11 is a DC input terminal, and the second power input terminal 12 is an AC input terminal.
[0024] The intelligent power environment monitoring host has various types of interfaces, such as RS485 interface 14, RS232 interface 15, DI interface 16, DO interface 17, water leakage detection interface 18, power output interface 10, and analog output interface 101, which are used to connect with various devices or apparatuses, making it extremely convenient to use. And the intelligent power environment monitoring host adopts two power supply methods, namely the first power input terminal 11 and the second power input terminal 12, and outputs the main power supply 102 and the standby power supply through the switching power supply 2. Then, the dual-power switching module 3 is connected to the switching power supply 2 to control the output of the main power supply or the standby power supply. When an abnormal power failure or other abnormal states occur at the second power input terminal 12, the dual-power switching module 3 switches to the standby power supply for power supply, thus ensuring that the intelligent power environment monitoring host can work normally, making the intelligent power environment monitoring host work more stably and reliably, and it does not affect the monitoring of the entire computer room working environment. Moreover, the other path of the output main power supply or standby power supply is connected to the protection module 4, and then the protection module 4 is connected to the RS485 interface 14, RS232 interface 15, DI interface 16, DO interface 17, water leakage detection interface 18, power output interface 10, and analog output interface 101 for power supply. When short circuit or overcurrent phenomena occur in the devices connected to the RS485 interface 14, RS232 interface 15, DI interface 16, DO interface 17, water leakage detection interface 18, power output interface 10, and analog output interface 101, the protection module 4 will cut off the subsequent current output to prevent other subsequent devices from being burned out. Since one path of the output main power supply or standby power supply is connected to the built-in temperature and humidity interface 13 and the communication module 5 for power supply, and it does not need to pass through the protection module 4, that is, the system power supply is before the protection module 4, so even if short circuit and overcurrent abnormalities occur in the subsequent circuit of the protection module 4, it does not affect the normal operation of the intelligent power environment monitoring host. When the abnormal phenomena are removed, the subsequent circuit continues to supply power, ensuring the stability and security of the system. That is to say, the intelligent power environment monitoring host separates the external power supply and the internal power supply through the protection module. Even if problems such as short circuit and overload occur in the connected external devices, the intelligent power environment monitoring host can still work stably.
[0025] The subsequent circuit continues to supply power means that the RS485 interface 14, RS232 interface 15, DI interface 16, DO interface 17, water leakage detection interface 18, power output interface 10, and analog output interface 101 can supply power to the devices they are connected to.
[0026] In addition, due to the large number of interface types of the intelligent power environment monitoring host, users can independently select and purchase corresponding function modules to dock with the intelligent power environment monitoring host according to personalized needs. Once installed, the intelligent power environment monitoring host will periodically establish communication connections with the connected devices and perform data collection work. The collected data will then be used to realize data exchange with the external system through the built-in communication module.
[0027] The communication module 5 includes a wireless communication module and / or a wired communication module, and is communicatively connected to an external system through the wireless communication module or the wired communication module for data exchange with the external system; the external system obtains various data recorded by the current device through a query method. When it is detected that the set monitoring parameters exceed or are lower than the preset threshold range, the external system will automatically push notifications through the web page, or remind the user in the form of text messages or phone calls to ensure that the user can timely master the status of each device and take corresponding measures; specifically, for the convenience of real-time monitoring and management of data, the external system (also known as the external platform) provides a communication protocol, and can easily obtain various data recorded by the current device through a query method. More intelligently, when it is detected that the set monitoring parameters exceed or are lower than the preset threshold range, the external system will automatically push notifications through the web page, or remind in various forms such as text messages and phone calls to ensure that the user can timely master the device status and take corresponding measures.
[0028] The wireless communication module includes any one of zigbee, LORA, wifi, Bluetooth, 2G / 4G / 5G / 6G communication modules, and the wired communication module includes any one of RS485, RS422, LINE, CAN, and power bus modules.
[0029] Among them, two built-in temperature and humidity interfaces 13 are placed inside the housing. The front and rear ends of the housing 6 are respectively provided with a first temperature and humidity sensor 61 and a second temperature and humidity sensor 62 that are respectively connected to the two built-in temperature and humidity interfaces 13 one by one. After the housing is installed in the cabinet, the first temperature and humidity sensor 61 is placed in the cold aisle of the cabinet, and the second temperature and humidity sensor 62 is placed in the hot aisle of the cabinet to directly and real-time monitor the temperature in the cold aisle and the aisle of the cabinet. That is to say, when the intelligent dynamic environment monitoring host is specifically used, after it is installed in the U position of the cabinet, the first temperature and humidity sensor 61 is placed in the cold aisle of the cabinet, and the second temperature and humidity sensor 62 is placed in the hot aisle of the cabinet to directly and real-time monitor the temperature in the cold aisle and the aisle of the cabinet. By real-time monitoring the temperature, problems can be discovered in time and the heat dissipation strategy can be adjusted to ensure the normal operation of other devices assembled in the cabinet.
[0030] The switching power supply 2 has both AC-to-DC function and DC-to-DC function. It is a relatively mature product and will not be elaborated in detail here.
[0031] The dual - path power - supply switching module (3) includes: a first voltage - dividing unit (31) and a first MOS - tube unit (32) connected to the main power supply (102), a second voltage - dividing unit (33) connected to the backup power supply (103), a second MOS - tube unit (34), an operational amplifier U1 connected to the first voltage - dividing unit (31) and the second voltage - dividing unit (33), a first inverter U2 and a second inverter U3 connected to the operational amplifier U1. The first inverter U2 is connected to the first MOS - tube unit (32), and the second inverter U3 is connected to the second MOS - tube unit (34). Both the first MOS - tube unit (32) and the second MOS - tube unit (34) are connected to the power - supply output terminal (100). Among them, the first voltage - dividing unit (31) includes voltage - dividing resistors R5 and R7, and the voltage - dividing resistors R5 and R7 are sequentially connected to the main power supply (102); the second voltage - dividing unit (33) includes voltage - dividing resistors R11 and R12, and the voltage - dividing resistors R11 and R12 are sequentially connected to the backup power supply (103); the voltage - dividing resistors R7 and R11 are both grounded, and the connection lines between the voltage - dividing resistors R5 and R7 and between the voltage - dividing resistors R11 and R12 are respectively connected to the inverting terminal and the non - inverting terminal of the operational amplifier U1. The first MOS - tube unit (32) includes MOS - tubes Q1, Q2, and Q4, and the second MOS - tube unit (34) includes MOS - tubes Q5, Q6, and Q7. The MOS - tubes Q1 and Q2 are sequentially connected to the main power supply (102); the MOS - tubes Q6 and Q7 are sequentially connected to the backup power supply (103); the output terminal of the operational amplifier U1 is connected to the input terminal of the first inverter U2. The output terminal of the first inverter U2 is respectively connected to the input terminals of the MOS - tube Q4 and the second inverter U3. The output terminal of the second inverter U3 is connected to the MOS - tube Q5. The MOS - tube Q4 is connected to the MOS - tubes Q1 and Q2 to control the on - off of the MOS - tubes Q1 and Q2. The MOS - tube Q5 is connected to the MOS - tubes Q6 and Q7 to control the on - off of the MOS - tubes Q6 and Q7. The MOS - tubes Q2 and Q7 are both connected to the power - supply output terminal (100).
[0032] A Schottky diode D5 is also connected between the output terminal of the operational amplifier U1 and the input terminal of the first inverter U2. The D pole of the MOS transistor Q1 is connected to the main power supply 102, the S pole of the MOS transistor Q1 is connected to the S pole of the MOS transistor Q2, the G poles of the MOS transistor Q1 and the MOS transistor Q2 are both connected to the D pole of the MOS transistor Q4, the G pole of the MOS transistor Q4 is connected to the output terminal of the first inverter U2, the S poles of the MOS transistor Q4 and the MOS transistor Q5 are both grounded, the G pole of the MOS transistor Q5 is connected to the output terminal of the second inverter U3, the G poles of the MOS transistor Q6 and the MOS transistor Q7 are both connected to the D pole of the MOS transistor Q5, the S poles of the MOS transistor Q6 and the MOS transistor Q7 are connected to each other, the D pole of the MOS transistor Q6 is connected to the backup power supply 103, and the D poles of the MOS transistor Q2 and the MOS transistor Q7 are both connected to the power output terminal 100.
[0033] Both the main power supply 102 and the backup power supply 103 are 12V. The main power supply 102 and the backup power supply 103 are connected to the first step-down voltage regulator chip 104, the first step-down voltage regulator chip 104 is connected to the second step-down voltage regulator chip 105, the output terminal of the first step-down voltage regulator chip 104 is connected to the +9V terminal 106, and the output terminal of the second step-down voltage regulator chip 105 is connected to the +5V terminal 107.
[0034] The working principle of the dual-power supply switching module 3 is as follows:
[0035] After the first power input terminal 11 and the second power input terminal 12 pass through the switching power supply 2, the 12V main power supply 102 and the backup power supply 103 are obtained.
[0036] The 12V main power supply 102 is divided by the voltage-dividing resistors R5 and R7, and the 12V backup power supply 103 is divided by the voltage-dividing resistors R12 and R11, and R7 > R11. Therefore, under the condition of the same voltage, U R7 > U R11 . U R7 and U R11 are respectively connected to the inverting terminal and the non-inverting terminal of the operational amplifier U1. The V+ terminal of the operational amplifier U1 is connected to the 9V power supply, and the V- terminal of the operational amplifier U1 is connected to the system ground. The output of the operational amplifier U1 is connected to the inverter U2, and one output of the inverter U2 is connected to the MOS transistor Q4, and the other output is connected to the MOS transistor Q5 via the inverter U3.
[0037] Because under normal circumstances, U R7 > U R11, so the operational amplifier U1 outputs a low level, which is output to the gate of the MOS transistor Q4 through the inverter U2, and the MOS transistor Q4 conducts. The drain of the MOS transistor Q1 is connected to the 12V power supply. Ignoring the body diode voltage drop of the MOS transistor, the sources of the MOS transistors Q1 and Q2 are both 12V. Since the gates of the MOS transistors Q1 and Q2 are both 0V, V gs meets the turn-on condition, so the MOS transistors Q1 and Q2 conduct. The low level output by the operational amplifier U1 is output to the MOS transistor Q5 through U3, so the MOS transistor Q5 turns off. The gate voltage of the MOS transistor Q5 is equal to the source voltages of the MOS transistors Q6 and Q7, and the MOS transistor Q7 turns off, so the main power supply voltage is output.
[0038] When the main power supply is abnormal, the voltage U R7 <U R11 , the operational amplifier U1 outputs a high level, which outputs a high level after passing through the inverters U2 and U3, and the MOS transistor Q5 conducts. The drain of the MOS transistor Q6 is connected to the 12V power supply. Ignoring the body diode voltage drop of the MOS transistor, the sources of the MOS transistors Q6 and Q7 are both 12V after passing through the body diode. Since the gates of the MOS transistors Q1 and Q2 are both 0V, V gs meets the turn-on condition, so the MOS transistors Q6 and Q7 conduct. The high level output by the operational amplifier U1 is output to the MOS transistor Q4 through the inverter U2, so the MOS transistor Q4 turns off. The gate voltage of the MOS transistor Q2 is equal to the source voltages of the MOS transistors Q1 and Q2, and the MOS transistors Q6 and Q7 turn off, so the backup power supply voltage is output.
[0039] When it is detected that the 12V main power supply 102 returns to normal, the dual-power supply switching module 3 controls the output of the 12V main power supply 102 and no longer outputs the backup power supply 103.
[0040] The protection module 4 is an overcurrent protection module, which includes a current limiting switch chip 41. The IN pin of the current limiting switch chip 41 is connected to the main power supply 102 and the backup power supply 103. The OUT pin of the current limiting switch chip 41 is connected to the RS485 interface 14, the RS232 interface 15, the DI interface 16, the DO interface 17, the water leakage detection interface 18, the power output interface 10, and the analog output interface 101. When a short circuit or overcurrent occurs in the devices connected to the RS485 interface 14, the RS232 interface 15, the DI interface 16, the DO interface 17, the water leakage detection interface 18, the power output interface 10, and the analog output interface 101, the overcurrent protection module will cut off the subsequent current output to prevent other subsequent devices from being burned. Since one path of the output main power supply or backup power supply is connected to each module on the PCB board 1 such as the built-in temperature and humidity interface 13 and the communication module 5 to supply power to each module on the PCB board 1, and it does not need to pass through the overcurrent protection module, that is, the system power supply is located before the overcurrent protection module. Therefore, even if a short circuit and overcurrent anomaly occur in the subsequent circuit of the overcurrent protection module, it does not affect the normal operation of the intelligent dynamic environment host. When the abnormal phenomenon is removed, the subsequent circuit continues to be powered, ensuring the stability and security of the system.
[0041] The RS485 interface 14 is connected to the UART to RS485 module 141 and then connected to the overcurrent protection module and the embedded system 7; the DI interface 16 is connected to the optocoupler isolator 161 and then connected to the overcurrent protection module and the embedded system 7; the DO interface 17 is connected to the relay 171 and then connected to the overcurrent protection module and the embedded system 7; the water leakage detection interface 18 is connected to the isolated DC-DC chip 181 and connected to the overcurrent protection module and the embedded system 7.
[0042] The embedded system 7 is also connected to a disk interface 71 and connected to a disk through the disk interface 71; the embedded system 7 is also connected to an HDMI interface 72 and connected to a display screen through the HDMI interface 72 in cooperation with an HDMI data cable; the HDMI interface 72 can also be replaced by other video interfaces, which can be one or more of HDMI, MIPI, LVDS, etc. The embedded system 7 is also connected to a network interface 19 for connecting a network cable to access the network.
[0043] The embedded system 7 is also connected to an RTC module 73, and the RTC module 73 can provide an accurate clock in the offline state of the network.
[0044] One path of the output main power supply or backup power supply is also connected to the RTC module 73 and the disk interface 71 for power supply.
[0045] The intelligent dynamic environment host is equipped with an access control system. The access control system can be used in combination with the analog output interface. The access control system can use the connected LED lights to indicate different states of the door.
[0046] In summary, the power supply system of the present utility model adopts dual-power supply. Even when one power supply fails, it can still continue to work stably relying on the other power supply to ensure the normal operation of the intelligent dynamic environment host. When it is detected that the main power supply returns to normal, the dual-power supply switching module controls the output of the main power supply and no longer outputs the standby power supply. In addition, the present utility model also separates the external power supply and the internal power supply through a protection module. Even if problems such as short circuit and overload occur in the externally connected devices, the intelligent dynamic environment host can still work stably.
[0047] Certainly, the above are only specific embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any equivalent changes or modifications made according to the structure, features and principles described in the scope of the patent application of the present utility model shall be included within the scope of the patent application of the present utility model.
Claims
1. Dual-circuit power switching module for intelligent dynamic ring host, characterized by: The dual-power switching module (3) is connected to the switch power supply (2) to control the output of the main power supply or the backup power supply; wherein, The switching power supply (2) is connected to the second power input terminal (12) and can output the main power (102); The switching power supply (2) is connected to the first power input terminal (11) and can output a backup power supply (103); The dual-path power switching module (3) comprises: a first voltage divider unit (31) and a first MOS tube unit (32) connected to a main power supply (102), a second voltage divider unit (33) and a second MOS tube unit (34) connected to a backup power supply (103), an operational amplifier U1 connected to the first voltage divider unit (31) and the second voltage divider unit (33), and a first inverter U2 and a second inverter U3 connected to the operational amplifier U1, wherein the first inverter U2 is connected to the first MOS tube unit (32), the second inverter U3 is connected to the second MOS tube unit (34), and the first MOS tube unit (32) and the second MOS tube unit (34) are both connected to a power output terminal (100).
2. The dual-circuit power switching module for the intelligent dynamic ring host according to claim 1 is characterized in that: The first voltage-dividing unit (31) comprises a voltage-dividing resistor R5 and a voltage-dividing resistor R7, and the voltage-dividing resistor R5 and the voltage-dividing resistor R7 are connected to the main power supply (102) in sequence; the second voltage-dividing unit (33) comprises a voltage-dividing resistor R11 and a voltage-dividing resistor R12, and the voltage-dividing resistor R12 and the voltage-dividing resistor R12 are connected to the backup power supply (103) in sequence; the voltage-dividing resistor R7 and the voltage-dividing resistor R11 are both grounded, and the connecting line between the voltage-dividing resistor R5 and the voltage-dividing resistor R7, and the connecting line between the voltage-dividing resistor R11 and the voltage-dividing resistor R12 are respectively connected to the reverse end and the forward end of the operational amplifier U1.
3. The dual-circuit power switching module for the intelligent dynamic ring host according to claim 2 is characterized in that: The first MOS transistor unit (32) comprises a MOS transistor Q1, a MOS transistor Q2 and a MOS transistor Q4, and the second MOS transistor unit (34) comprises a MOS transistor Q5, a MOS transistor Q6 and a MOS transistor Q7, wherein the MOS transistor Q1 and the MOS transistor Q2 are connected to the main power supply (102) in sequence; the MOS transistor Q6 and the MOS transistor Q7 are connected to the standby power supply (103) in sequence; the output end of the operational amplifier U1 is connected to the input end of the first inverter U2, the output end of the first inverter U2 is respectively connected to the input end of the MOS transistor Q4 and the second inverter U3, the output end of the second inverter U3 is connected to the MOS transistor Q5, the MOS transistor Q4 is connected to the MOS transistor Q1 and the MOS transistor Q2 to control the on and off of the MOS transistor Q1 and the MOS transistor Q2, the MOS transistor Q5 is connected to the MOS transistor Q6 and the MOS transistor Q7 to control the on and off of the MOS transistor Q6 and the MOS transistor Q7, and the MOS transistor Q2 and the MOS transistor Q7 are both connected to the power output end (100).
4. The dual-circuit power switching module for the intelligent dynamic ring host according to claim 3 is characterized in that: A Schottky diode D5 is also connected between the output end of the operational amplifier U1 and the input end of the first inverter U2; the D pole of the MOS transistor Q1 is connected to the main power supply (102); the S pole of the MOS transistor Q1 is connected to the S pole of the MOS transistor Q2; the G pole of the MOS transistor Q1 and the G pole of the MOS transistor Q2 are both connected to the D pole of the MOS transistor Q4; the G pole of the MOS transistor Q4 is connected to the output end of the first inverter U2; the S pole of the MOS transistor Q4 and the S pole of the MOS transistor Q5 are both grounded; the G pole of the MOS transistor Q5 is connected to the output end of the second inverter U3; the G pole of the MOS transistor Q6 and the G pole of the MOS transistor Q7 are both connected to the D pole of the MOS transistor Q5; the S pole of the MOS transistor Q6 is connected to the S pole of the MOS transistor Q7; the D pole of the MOS transistor Q6 is connected to the standby power supply (103); and the D pole of the MOS transistor Q2 and the D pole of the MOS transistor Q7 are both connected to the power output end (100).
5. The dual-circuit power switching module for the intelligent dynamic ring host according to claim 4 is characterized in that: The main power supply (102) and the backup power supply (103) are both 12V, the main power supply (102) and the backup power supply (103) are connected to a first buck voltage stabilizing chip (104), the first buck voltage stabilizing chip (104) is connected to a second buck voltage stabilizing chip (105), the output end of the first buck voltage stabilizing chip (104) is connected to a +9V terminal (106), and the output end of the second buck voltage stabilizing chip (105) is connected to a +5V terminal (107).
6. The dual-circuit power switching module for the intelligent dynamic ring host according to any one of claims 1 to 3, characterized in that: The main power supply (102) and the backup power supply (103) are connected to a protection module (4).
7. The dual-circuit power switching module for the intelligent dynamic ring host according to claim 6 is characterized in that: The protection module (4) is an overcurrent protection module, which comprises a current limiting switch chip (41), wherein an IN pin of the current limiting switch chip (41) is connected to a main power supply (102) and a backup power supply (103).