Dual-power redundant power supply system based on LRM architecture

Abstract

The utility model discloses a dual-power-supply redundant power supply system based on an LRM architecture, and relates to the technical field of power supply, the dual-power-supply redundant power supply system comprises a first power supply unit and a second power supply unit which are connected in parallel between an external power supply and a device to be powered, and the first power supply unit comprises a first power supply module and a first current sharing circuit module; the second power supply unit comprises a second power supply module and a second current-sharing circuit module, and the first current-sharing circuit module and the second current-sharing circuit module can keep the voltage and the current of the first power supply module and the second power supply module equal in the power supply process. Overload of partial circuits caused by unbalanced current sharing is prevented, and seamless switching power supply of dual power supplies is realized. In addition, the system further integrates multiple safety guarantee measures such as a switch circuit module, a filter circuit module, an overvoltage protection circuit module and a temperature detection module, and the reliability and stability of the system are further improved. The power supply system has the effect of improving the reliability and the maintenance convenience of the power supply system.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to a dual-power redundant power supply system based on LRM architecture. Background Technology

[0002] In recent years, LRM architecture devices have been widely used in various fields such as data communication, computing, and AI intelligent control due to their advantages such as high integration, strong scalability, high security, low maintenance costs, and strong environmental adaptability. These devices have not only improved the overall performance of systems but also greatly promoted technological innovation and development in related industries. As the functions of LRM architecture devices continue to be enriched and application scenarios become more diversified, higher requirements are being placed on the reliability and stability of these devices, especially in terms of power management.

[0003] In the existing technology, the power management system for LRM architecture devices usually adopts a dual power supply redundancy method, that is, a dual power supply configuration with one main power supply and one secondary power supply. The main power supply is responsible for the main power supply, and the secondary power supply serves as a backup. When the main power supply fails, the system switches to the secondary power supply to continue supplying power to the device.

[0004] However, the existing dual-power redundant power supply method may cause a brief power outage when switching between the main and auxiliary power supplies, which may lead to data loss or equipment damage. Utility Model Content

[0005] To improve the reliability and ease of maintenance of the power supply system, this application provides a dual-power redundant power supply system based on the LRM architecture.

[0006] The dual-power redundant power supply system based on LRM architecture provided in this application adopts the following technical solution:

[0007] A dual-power redundant power supply system based on LRM architecture includes a first power supply unit and a second power supply unit, which are connected in parallel between an external power source and the device to be powered. The first power supply unit includes a first power module and a first current sharing circuit module. The first power module is connected to both the external power source and the device to be powered. The first current sharing circuit module is electrically connected to the first power module to monitor and adjust the current and voltage of the first power module. The second power supply unit includes a second power module and a second current sharing circuit module. The second power module is connected to both the external power source and the device to be powered. The second current sharing circuit module is electrically connected to the second power module to monitor and adjust the current and voltage of the second power module. The first and second current sharing circuit modules are electrically connected and can maintain equal voltage and current in the first and second power modules during power supply to prevent overload of some circuits due to current sharing imbalance.

[0008] By adopting the above technical solution, the dual-power redundant power supply system can not only seamlessly switch to another power supply unit to power the equipment when a single power supply unit fails, thereby ensuring the continuous and stable operation of the equipment, but also effectively balance the current and voltage between the first power supply module and the second power supply module, preventing some circuits from overloaded due to current imbalance, thereby extending the service life of system components.

[0009] Optionally, a first switching circuit module is provided between the first power module and the external power supply, and the first switching circuit module is connected to both the external power supply and the first power module; a second switching circuit module is provided between the second power module and the external power supply, and the second switching circuit module is connected to both the external power supply and the second power module; both the first power module and the second power module adopt a hot-swappable design.

[0010] By adopting the above technical solutions, the power supply unit can be turned on and off more conveniently, and hot-swapping is supported, which allows damaged power modules to be replaced without shutting down the equipment, further improving the reliability and maintenance convenience of the system.

[0011] Optionally, a first filter circuit module is further provided between the first switch circuit module and the first power supply module, and the first filter circuit module is connected to the first switch circuit module and the first power supply module respectively; a second filter circuit module is further provided between the second switch circuit module and the second power supply module, and the second filter circuit module is connected to the second switch circuit module and the second power supply module respectively.

[0012] By adopting the above technical solutions, the first and second filter circuit modules can effectively filter out high-frequency noise and interference signals in the input power supply, ensuring that the voltage entering the first and second power modules is purer and more stable. This not only improves the power supply quality of the power unit but also extends the lifespan of electronic components, further enhancing the stability and reliability of the entire LRM architecture device.

[0013] Optionally, a first overvoltage protection circuit module is provided between the first filter circuit module and the first power supply module, and the first overvoltage protection circuit module is connected to both the first filter circuit module and the first power supply module; a second overvoltage protection circuit module is provided between the second filter circuit module and the second power supply module, and the second overvoltage protection circuit module is connected to both the second filter circuit module and the second power supply module.

[0014] By adopting the above technical solution, the first overvoltage protection circuit module and the second overvoltage protection circuit module can effectively detect the input voltage and quickly cut off the power input in the event of overvoltage, preventing damage to the power supply unit caused by overvoltage. This not only improves the safety and reliability of the system, but also extends the service life of the power supply unit and other electronic components; this design makes the system more stable when facing sudden power fluctuations, reducing the equipment failure rate caused by power problems.

[0015] Optionally, the first overvoltage protection circuit module includes a first overvoltage detection module, a first protection switch, and a first reset button. The first overvoltage detection module is used to monitor the input voltage in real time, the first protection switch is used to cut off the power input when overvoltage occurs, and the first reset button is used to manually reset the first protection switch. The second overvoltage protection circuit module includes a second overvoltage detection module, a second protection switch, and a second reset button. The second overvoltage detection module is used to monitor the input voltage in real time, the second protection switch is used to cut off the power input when overvoltage occurs, and the second reset button is used to manually reset the second protection switch.

[0016] By adopting the above technical solution, the first and second overvoltage protection circuit modules can monitor the input voltage in real time and cut off the power input in a timely manner when overvoltage is detected, effectively preventing damage to the power supply unit caused by overvoltage. Furthermore, the first and second reset buttons allow users to manually reset the protection switches, enabling the system to quickly return to normal operation after fault diagnosis, thus improving system reliability and maintenance convenience.

[0017] Optionally, the first overvoltage protection circuit module includes a first self-resetting fuse; the second overvoltage protection circuit module includes a second self-resetting fuse.

[0018] By adopting the above technical solution, the power supply unit can be automatically melted to protect it from damage under overvoltage conditions, and it can be automatically reset after the normal voltage is restored, without manual intervention, which further improves the reliability and maintenance convenience of the system.

[0019] Optionally, both the first and second filter circuit modules employ a multi-stage filtering design.

[0020] By adopting the above technical solutions, the multi-stage filtering design can effectively reduce high-frequency noise and electromagnetic interference in the input power supply, and improve the stability and reliability of the power supply system. Specifically, multi-stage filtering can filter out noise signals of different frequencies step by step, making the voltage entering the power module purer, thereby ensuring the normal operation of LRM architecture devices in various complex environments and extending the service life of electronic components.

[0021] Optionally, the first switch circuit module includes a first switch button for controlling the switch of the first power unit and a first indicator light for displaying the operating status of the first power unit; the second switch circuit module includes a second switch button for controlling the switch of the second power unit and a second indicator light for displaying the operating status of the second power unit.

[0022] By adopting the above technical solution, when the equipment is in a non-critical task phase or requires energy-saving mode, the user can manually select to turn off one of the power units using the first switch button and the second switch button, which improves the flexibility of the system. In addition, the design of the first indicator light and the second indicator light can intuitively display the working status of each power unit.

[0023] Optionally, the first power supply unit further includes a first temperature detection module for detecting the temperature of the first power module, and the second power supply unit further includes a second temperature detection module for detecting the temperature of the second power module; the first current sharing circuit module and the second current sharing circuit module are electrically connected to the first temperature detection module and the second temperature detection module, respectively, so as to adjust the current and voltage of the first power module and the second power module according to the operating temperature of the first power module and the second power module.

[0024] By adopting the above technical solution, the first temperature detection module and the second temperature detection module can monitor the operating temperature of their respective power modules in real time and transmit the temperature signal to the corresponding first current sharing circuit module and / or second current sharing circuit module. In this way, the first current sharing circuit module and / or the second current sharing circuit module can also dynamically adjust the current and voltage of the power modules according to the actual temperature, ensuring that each power module operates in the best working condition, thereby extending the service life of electronic components and improving the stability and reliability of the system.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. This dual-power redundant power supply system can not only seamlessly switch to another power supply unit to power the equipment when a single power supply unit fails, thereby ensuring the continuous and stable operation of the equipment, but also effectively balance the current and voltage between the first power supply module and the second power supply module, preventing overload of some circuits due to current imbalance, thereby extending the service life of system components.

[0027] 2. This makes it easier to turn the power supply unit on and off, and also supports hot-swapping, which allows for the replacement of damaged power supply units without shutting down the equipment, further improving the reliability and ease of maintenance of the system.

[0028] 3. The first temperature detection module and the second temperature detection module can monitor the operating temperature of their respective power supply units in real time and transmit the temperature signal to the corresponding first current sharing circuit module and / or second current sharing circuit module. In this way, the first current sharing circuit module and / or the second current sharing circuit module can also dynamically adjust the current and voltage of the power supply unit according to the actual temperature, ensuring that each power supply unit operates in the best working condition, thereby extending the service life of electronic components and improving the stability and reliability of the system. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0030] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0031] Explanation of reference numerals in the attached drawings: 100, external power supply; 200, device to be powered; 1, first power supply unit; 11, first power supply module; 12, first current sharing circuit module; 13, first switching circuit module; 14, first overvoltage protection circuit module; 15, first filter circuit module; 16, first temperature detection module; 2, second power supply unit; 21, second power supply module; 22, second current sharing circuit module; 23, second switching circuit module; 24, second overvoltage protection circuit module; 25, second filter circuit module; 26, second temperature detection module. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0033] This application discloses a dual-power redundant power supply system based on LRM architecture.

[0034] Example 1

[0035] Reference Figure 1In this embodiment, the dual-power redundant power supply system includes a first power supply unit 1 and a second power supply unit 2. The first power supply unit 1 and the second power supply unit 2 are connected in parallel between the external power supply 100 and the device to be powered 200. This design achieves reliability and ease of maintenance of the power supply system, and solves the problem of temporary power outages that may occur when switching between the main and auxiliary power supplies in the prior art, thereby avoiding data loss or equipment damage.

[0036] Specifically, the first power supply unit 1 includes a first power supply module 11 and a first current sharing circuit module 12. The first power supply module 11 is connected to the external power supply 100 and the device to be powered 200, respectively. The first current sharing circuit module 12 is electrically connected to the first power supply module 11. The first power supply module 11 can be a DC-DC converter or a linear regulator, used to convert the high-voltage DC power from the external power supply 100 into low-voltage DC power suitable for the device to be powered 200. Preferably, the first power supply module 11 can be a DC-DC converter of model LM2596 or a linear regulator of model L7805CV. The first current sharing circuit module 12 is composed of a resistor, an operational amplifier and an optocoupler, used to monitor and adjust the current and voltage of the first power supply module 11. Preferably, a precision resistor R1 can be used to detect the current, a TLV2372 operational amplifier can be used to compare the actual current with the set value, and an HCPL-M620L optocoupler can be used to isolate the signal transmission to ensure safety and accuracy.

[0037] Furthermore, the second power supply unit 2 includes a second power supply module 21 and a second current sharing circuit module 22. The second power supply module 21 is connected to the external power supply 100 and the device to be powered 200, respectively. The second current sharing circuit module 22 is electrically connected to the second power supply module 21. The function and selection of the second power supply module 21 are the same as those of the first power supply module 11. The same model can be selected, or different models can be selected according to the actual situation to achieve a more flexible design. Preferably, if it is desired to increase the capacity of the backup power supply, a DC-DC converter with greater power can be selected. The second current sharing circuit module 22 also adopts a similar structure to ensure the current sharing balance of the two power supplies.

[0038] Furthermore, the first current sharing circuit module 12 and the second current sharing circuit module 22 are electrically connected to maintain the voltage and current of the first power supply module 11 and the second power supply module 21 equal during the power supply process, and to make dynamic adjustments as needed to prevent some circuits from being overloaded due to unbalanced current sharing; preferably, when the load of a certain power supply suddenly increases, the corresponding current sharing circuit module will respond quickly and adjust the output of the other power supply to keep the total output stable.

[0039] Furthermore, to improve system reliability, a first switch circuit module 13 is provided between the first power module 11 and the external power supply 100, and a second switch circuit module 23 is provided between the second power module 21 and the external power supply 100. The first switch circuit module 13 includes a first switch button and a first indicator light, and the second switch circuit module 23 includes a second switch button and a second indicator light. The first switch button and the second switch button can be ordinary push-button switches, and the first indicator light and the second indicator light can be LED lights. By controlling the first switch button and the second switch, the first power unit 1 and the second power unit 2 can be freely turned on and off. In addition, the first indicator light and the second indicator light can intuitively display the working status of the first power unit 1 and the second power unit 2.

[0040] Preferably, both the first power module 11 and the second power module 21 adopt a hot-swappable design. This design allows for the quick replacement of damaged power modules without shutting down the system, ensuring stable operation.

[0041] Furthermore, a first filter circuit module 15 is provided between the first switch circuit module 13 and the first power supply module 11, and the first filter circuit module 15 is connected to the first switch circuit module 13 and the first power supply module 11 respectively; a second filter circuit module 25 is provided between the second switch circuit module 23 and the second power supply module 21, and the second filter circuit module 25 is connected to the second switch circuit module 23 and the second power supply module 21 respectively; the first filter circuit module 15 and the second filter circuit module 25 are mainly used to eliminate electromagnetic interference and ripple noise, and ensure the purity of the power output.

[0042] Preferably, both the first filter circuit module 15 and the second filter circuit module 25 adopt a multi-stage filtering design. Both the first filter circuit module 15 and the second filter circuit module 25 include a pre-filter, a main filter, and a post-filter. The pre-filter, main filter, and post-filter are usually cascaded. The input current is connected to the input terminal of the pre-filter, which performs preliminary filtering on the input current to remove high-frequency noise or out-of-band interference. The output terminal of the pre-filter is then connected to the input terminal of the main filter. The main filter performs primary filtering on the current according to design requirements to achieve specific frequency response characteristics. Finally, the output terminal of the main filter is connected to the input terminal of the post-filter, which further smooths the current output by the main filter to eliminate any residual noise.

[0043] Furthermore, a first overvoltage protection circuit module 14 is provided between the first filter circuit module 15 and the first power supply module 11, and the first overvoltage protection circuit module 14 is connected to the first filter circuit module 15 and the first power supply module 11 respectively; a second overvoltage protection circuit module 24 is provided between the second filter circuit module 25 and the second power supply module 21, and the second overvoltage protection circuit module 24 is connected to the second filter circuit module 25 and the second power supply module 21 respectively; the first overvoltage protection circuit module 14 and the second overvoltage protection circuit module 24 can quickly cut off the power supply when the input voltage exceeds a preset value, protecting the downstream circuit module from damage.

[0044] Preferably, the first overvoltage protection circuit module 14 includes a first overvoltage detection module, a first protection switch, and a first reset button, and the second overvoltage protection circuit module 24 includes a second overvoltage detection module, a second protection switch, and a second reset button. These components together constitute a complete overvoltage protection system, which can cut off the power supply in time when an overvoltage event occurs and provide a manual reset function. Specifically, a general-purpose operational amplifier can be used as the core component of the overvoltage detection module, in conjunction with a MOSFET as the protection switch, and a physical button as the reset button to ensure the safety and ease of use of the entire system.

[0045] The implementation principle of Example 1 is as follows: By connecting the first power supply unit 1 and the second power supply unit 2 in parallel, precise current distribution is achieved using the first current sharing circuit module 12 and the second current sharing circuit module 22, ensuring the stability and reliability of the dual power supply system. At the same time, by adding a switching circuit module, a filtering circuit module, and an overvoltage protection circuit module, the safety and durability of the system are further enhanced. In particular, there will be no brief power outage during the switching between the main and auxiliary power supplies, thus effectively avoiding the risk of data loss and equipment damage. This design not only improves the overall performance of the system, but also greatly simplifies maintenance work, making the dual power supply redundant power supply system based on the LRM architecture more practical and efficient.

[0046] Example 2

[0047] Reference Figure 2 The difference between this embodiment 2 and embodiment 1 is that: the first power supply unit 1 further includes a first temperature detection module 16; the second power supply unit 2 further includes a second temperature detection module 26; the first overvoltage protection circuit module 14 includes a first self-resetting fuse, and the second overvoltage protection circuit module 24 includes a second self-resetting fuse;

[0048] Specifically, the first current sharing circuit module 12 and the second current sharing circuit module 22 are electrically connected to the first temperature detection module 16 and the second temperature detection module 26, respectively, to adjust the current and voltage of the first power module 11 and the second power module 21 according to their operating temperatures.

[0049] Preferably, the first temperature detection module 16 and the second temperature detection module 26 can be NTC thermistors, which can monitor the operating temperature of the first power module 11 and the second power module 21 in real time and feed the temperature information back to the corresponding current sharing circuit module so that the output parameters of the first power module 11 and the second power module 21 can be adjusted according to temperature changes. When the temperature of a power module is too high, the corresponding current sharing circuit will appropriately reduce the output current of the power module to reduce heat generation and extend service life.

[0050] Furthermore, the first overvoltage protection circuit module 14 also includes a first self-resetting fuse, and the second overvoltage protection circuit module 24 also includes a second self-resetting fuse; the self-resetting fuse can automatically blow under overload or short circuit conditions and automatically reset after normal operation, without the need for replacement, thus reducing maintenance costs; preferably, the first self-resetting fuse and the second self-resetting fuse can be polymer positive temperature coefficient fuses or ceramic self-resetting fuses.

[0051] The implementation principle of Example 2 is as follows: By integrating self-resetting fuses into the first overvoltage protection circuit module 14 and the second overvoltage protection circuit module 24, the self-protection capability of the system is significantly improved, and it can quickly react and return to normal under overload or short circuit conditions without manual intervention; the coordinated work of the first temperature detection module 16 and the second temperature detection module 26 with the first current sharing circuit module 12 and the second current sharing circuit module 22 ensures the stability and reliability of the first power module 11 and / or the second power module 21 under different operating conditions; this design improves the overall performance of the system.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual power supply redundant power system based on LRM architecture, characterized in that: The application relates to a power supply device, which comprises a first power supply unit (1) and a second power supply unit (2), the first power supply unit (1) and the second power supply unit (2) being connected in parallel between an external power supply (100) and a device to be powered (200); the first power supply unit (1) comprises a first power supply module (11) and a first current equalization circuit module (12), the first power supply module (11) is connected with the external power supply (100) and the device to be powered (200) respectively, and the first current equalization circuit module (12) is electrically connected with the first power supply module (11) and used for monitoring and adjusting the current and voltage of the first power supply module (11); the second power supply unit (2) comprises a second power supply module (21) and a second current equalization circuit module (22), the second power supply module (21) is connected with the external power supply (100) and the device to be powered (200) respectively, and the second current equalization circuit module (22) is electrically connected with the second power supply module (21) and used for monitoring and adjusting the current and voltage of the second power supply module (21); the first current equalization circuit module (12) and the second current equalization circuit module (22) are electrically connected and can keep the voltage and current of the first power supply module (11) and the second power supply module (21) equal during power supply, so that the first power supply unit (1) and the second power supply unit (2) are prevented from being overloaded due to current imbalance.

2. The dual power supply redundant power system based on LRM architecture according to claim 1, characterized in that: The first power supply module (11) is further provided with a first switch circuit module (13) connected with the external power supply (100) and the first power supply module (11) respectively; the second power supply module (21) is further provided with a second switch circuit module (23) connected with the external power supply (100) and the second power supply module (21) respectively; and the first power supply module (11) and the second power supply module (21) are designed in a hot plug mode.

3. The dual power supply redundant power system based on LRM architecture according to claim 2, characterized in that: The first switch circuit module (13) and the first power supply module (11) are further provided with a first filter circuit module (15) connected with the first switch circuit module (13) and the first power supply module (11) respectively; and the second switch circuit module (23) and the second power supply module (21) are further provided with a second filter circuit module (25) connected with the second switch circuit module (23) and the second power supply module (21) respectively.

4. The dual power supply redundant power system based on LRM architecture according to claim 3, characterized in that: The first filter circuit module (15) and the first power supply module (11) are provided with a first overvoltage protection circuit module (14) connected with the first filter circuit module (15) and the first power supply module (11) respectively; and the second filter circuit module (25) and the second power supply module (21) are provided with a second overvoltage protection circuit module (24) connected with the second filter circuit module (25) and the second power supply module (21) respectively.

5. The dual power supply redundant power system based on LRM architecture according to claim 4, characterized in that: The first overvoltage protection circuit module (14) comprises a first overvoltage detection module, a first protection switch and a first reset button, the first overvoltage detection module is used for monitoring input voltage in real time, the first protection switch is used for cutting off power input when overvoltage, and the first reset button is used for manually resetting the first protection switch; the second overvoltage protection circuit module (24) comprises a second overvoltage detection module, a second protection switch and a second reset button, the second overvoltage detection module is used for monitoring input voltage in real time, the second protection switch is used for cutting off power input when overvoltage, and the second reset button is used for manually resetting the second protection switch.

6. The dual power supply redundant power system based on LRM architecture according to claim 4, characterized in that: The first overvoltage protection circuit module (14) comprises a first self-resetting fuse; and the second overvoltage protection circuit module (24) comprises a second self-resetting fuse.

7. The dual power supply redundant power system based on LRM architecture according to claim 3, characterized in that: The first filter circuit module (15) and the second filter circuit module (25) are both designed with multi-stage filtering.

8. The dual power supply redundant power system based on LRM architecture according to claim 2, characterized in that: The first switch circuit module (13) comprises a first switch button for controlling the switch of the first power supply unit (1) and a first indicator lamp for displaying the working state of the first power supply unit (1); and the second switch circuit module (23) comprises a second switch button for controlling the switch of the second power supply unit (2) and a second indicator lamp for displaying the working state of the second power supply unit (2).

9. The dual power supply redundant power system based on LRM architecture according to claim 1, characterized in that: The first power supply unit (1) further comprises a first temperature detection module (16) for detecting the temperature of the first power supply module (11), and the second power supply unit (2) further comprises a second temperature detection module (26) for detecting the temperature of the second power supply module (21); the first current equalization circuit module (12) and the second current equalization circuit module (22) are electrically connected with the first temperature detection module (16) and the second temperature detection module (26) respectively, so as to adjust the current and voltage of the first power supply module (11) and the second power supply module (21) according to the working temperature of the first power supply module (11) and the second power supply module (21).

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