The power system of the sequencer and the sequencer

Abstract

This application discloses a power supply system for a sequencer and the sequencer itself. The power supply system includes an AC / DC power module, a DC / DC power module, and a power management board. The AC / DC power modules are connected to each other, and the DC / DC power modules are connected to the power management board. The power management board is communicatively connected to both the AC / DC power modules and the DC / DC power modules. The AC / DC power module includes n AC / DC power supplies connected in parallel with current sharing, where n is a positive integer greater than or equal to 1. The AC / DC power module is used to convert the received AC voltage into DC voltage and output it. The DC / DC power module is used to convert the received DC voltage into m different target voltage values, where m is a positive integer greater than or equal to 1. The power management board is connected to multiple loads of the sequencer and is used to provide the required supply voltage to the loads, control the operating state of each AC / DC power supply, and adjust the target voltage value of each DC / DC power supply. This application can ensure the stability of the sequencer's multi-load operation and meet the power supply requirements of different loads.

Description

Technical Field

[0001] This application relates to the field of sequencing equipment technology, specifically to a power supply system and a sequencer. Background Technology

[0002] Current sequencer power systems typically employ an N+1 power scheme, where the sequencer's power supply system consists of N+1 identical power modules, with one power supply used as backup. These N+1 power supplies are connected in parallel to power the sequencer's load. If only one power supply fails, the device can continue to operate normally using the redundant power modules. However, this current scheme is insufficient to meet the varying power supply voltage requirements of different loads within the sequencer. Summary of the Invention

[0003] Therefore, this application provides a power supply system for a sequencer and a sequencer itself. The technical solution of this application is as follows: This application provides a power system for a sequencer, including an AC / DC power module, a DC / DC power module, and a power management board. The AC / DC power module is connected to the DC / DC power module, and the DC / DC power module is connected to the power management board. The power management board is communicatively connected to both the AC / DC power module and the DC / DC power module. The AC / DC power module includes n AC / DC power supplies connected in parallel with current sharing, where n is a positive integer greater than or equal to 1. The AC / DC power module is used to convert received AC voltage into DC voltage and output it. The DC / DC power module is used to convert the received DC voltage into m different target voltage values, where m is a positive integer greater than or equal to 1. The power management board is connected to multiple loads of the sequencer and is used to provide the required supply voltage to the loads, control the operating state of each AC / DC power supply, and adjust the target voltage value of each DC / DC power supply.

[0004] In one embodiment of this application, the DC / DC power module includes m DC / DC power supplies, where m is a positive integer greater than or equal to 1, and each DC / DC power supply is used to convert the DC voltage into the corresponding supply voltage.

[0005] In one embodiment of this application, the power management board is also used to control the operating state of each of the DC / DC power supplies.

[0006] In one embodiment of this application, the power management board is further configured to detect the output voltage of the DC / DC power supply, and when it is determined that the output voltage is not within the target output voltage range, control the DC / DC power supply to turn off, wherein the target output voltage range is based on the target voltage value corresponding to the DC / DC power supply.

[0007] In one embodiment of this application, the DC / DC power module further includes m first switching units, and the input terminal of each DC / DC power supply is connected to the AC / DC power module through one of the first switching units; the power management board is also used to control the first switching unit corresponding to the target DC / DC power supply to disconnect, and the output voltage of the target DC / DC power supply is not within the target output voltage range.

[0008] In one embodiment of this application, the power management board is further configured to detect the operating parameters of the AC / DC power supply and control the AC / DC power supply to shut down if the operating parameters are not within a preset parameter range.

[0009] In one embodiment of this application, the AC / DC power module further includes a power bus and n second switching units. The output terminal of each AC / DC power supply is connected to the power bus through the second switching unit. The power bus is used to connect to the DC / DC power module. The power management board is also used to control the second switching unit corresponding to the target AC / DC power supply to disconnect. The operating parameters of the target AC / DC power supply are not within the preset parameter range.

[0010] In one embodiment of this application, the operating state includes a startup state and a shutdown state; the power management board is also connected to a host computer for reporting the operating state of each AC / DC power supply and each DC / DC power supply to the host computer.

[0011] In one embodiment of this application, the power management board is also used to report information about abnormal loads to the host computer.

[0012] A second aspect of this application provides a sequencer including multiple loads and a power system as described above; each of the loads is connected to the power system to receive a supply voltage output by the power system.

[0013] The power system of this application embodiment includes n parallel-connected AC / DC power supplies in the AC / DC power module. A power management board detects the operating parameters of each AC / DC power supply. If an AC / DC power supply malfunctions based on these parameters, it can be quickly shut down for isolation. This ensures that redundant backup AC / DC power supplies can seamlessly fill the power gap when an AC / DC power supply fails or malfunctions, thereby guaranteeing the stability of multiple loads operating in the sequencer. Furthermore, the DC / DC power module converts the single input DC voltage of the AC / DC power module into multiple independently adjustable supply voltages, thus meeting the power supply voltage requirements of different loads in the sequencer. Attached Figure Description

[0014] Figure 1 This is a schematic block diagram of a power supply system for a sequencer provided in an embodiment of this application.

[0015] Figure 2 This is a schematic block diagram of the power supply system of the second sequencer provided in the embodiments of this application.

[0016] Figure 3 This is a schematic block diagram of the power supply system of the third sequencer provided in the embodiments of this application.

[0017] Figure 4 This is a schematic block diagram of the power supply system of the fourth sequencer provided in the embodiments of this application.

[0018] Figure 5 This is a schematic block diagram of a power management board provided in an embodiment of this application.

[0019] Figure 6 This is a schematic block diagram of a sequencer provided in an embodiment of this application. Detailed Implementation

[0020] It should be noted that in the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone, where A and B can be singular or plural. The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and drawings of this application are used to distinguish similar objects, not to describe a specific order or sequence.

[0021] It should also be noted that the methods disclosed in the embodiments of this application or the methods shown in the flowcharts include one or more steps for implementing the method. Without departing from the scope of the claims, the execution order of multiple steps can be interchanged, and some steps can also be deleted.

[0022] Current sequencer power systems typically employ an N+1 power scheme, where the sequencer's power supply system consists of N+1 identical power modules, with one power supply used as backup. These N+1 power supplies are connected in parallel to power the sequencer's load. If only one power supply fails, the device can continue to operate normally using the redundant power modules. However, this current scheme is insufficient to meet the varying power supply voltage requirements of different loads within the sequencer.

[0023] This application provides a power supply system and a sequencer for ensuring the stability of multiple loads operating in the sequencer and meeting the power supply voltage requirements of different loads in the sequencer.

[0024] Please refer to Figure 1 , Figure 1 This is a schematic block diagram of a power supply system for a sequencer provided in an embodiment of this application. The power supply system 100 includes an AC / DC power module 110, a DC / DC power module 120, and a power management board 130.

[0025] In this embodiment, the AC / DC power module 110 is connected to the DC / DC power module 120, the DC / DC power module 120 is connected to the power management board 130, and the power management board 130 is communicatively connected to both the AC / DC power module 110 and the DC / DC power module 120.

[0026] The AC / DC power module 110 includes n AC / DC power supplies 111 connected in parallel with current sharing, where n is a positive integer greater than or equal to 1 (n is 3 in the example in the figure). The AC / DC power module 110 is used to convert the received AC voltage into DC voltage and output it. It can be understood that the AC / DC power module 110 in the power system 100 can achieve an N+1 redundancy design by working together with multiple AC / DC power supplies 111. In the event of a single failure of an AC / DC power supply 111, the normal operation of the system is not affected, making the system more resistant to power failure risks. At the same time, it makes the power system 100 more perceptible and controllable, and also makes the process of converting AC voltage to DC voltage more stable.

[0027] In some embodiments, the value of n can depend on the power, redundancy, and scalability requirements of the sequencer's multiple loads. For example, when the sequencer has N loads that require independent power supply, the AC / DC power module 110 can be equipped with N+1=n AC / DC power supplies 111 connected in parallel for current sharing. If one of the AC / DC power supplies 111 in the AC / DC power module 110 fails, the redundant backup AC / DC power supply 111 can seamlessly make up for the missing power supply requirements, thereby ensuring the stability of the operation of the multiple loads in the sequencer.

[0028] In the AC / DC power module 110, a current sharing circuit can be used to achieve parallel connection between each AC / DC power supply 111, so as to ensure that the output power of each AC / DC power supply 111 is consistent, prevent one AC / DC power supply 111 from failing due to overload, and improve the overall alternating efficiency.

[0029] The DC / DC power module 120 is used to convert the received DC voltage into m different target voltage values, where m is a positive integer greater than or equal to 1. It can be understood that the DC / DC power module 120 in the power system 100 can convert the single input DC voltage of the AC / DC power module 110 into multiple independently adjustable supply voltage values ​​to meet the power supply voltage requirements of various loads in the sequencer.

[0030] In some embodiments, the DC / DC power module 120 can employ a multi-phase parallel topology or a cascaded topology to achieve independent output of multiple supply voltages. For example, the DC / DC power module 120 may include multiple parallel buck-boost circuit units, each of which can independently adjust its duty cycle to convert DC voltage into supply voltages of different values. Alternatively, the DC / DC power module 120 may include a high-frequency transformer with a multi-winding secondary side, where each winding has a different number of turns, and outputs different supply voltages through independent rectifier and filter circuits, isolating the various supply voltage outputs to avoid mutual interference.

[0031] The power management board 130 is connected to the sequencer's multiple loads to provide the required power supply voltage to the loads, control the operating status of each AC / DC power supply 111, and adjust the target voltage value of each DC / DC power supply. It can be understood that the power management board 130 is used for power distribution and regulation of the power system 100, and achieves control and management of the aforementioned AC / DC power supply modules 110 and DC / DC power supply modules 120 through coordinated control.

[0032] In some embodiments, the power management board 130 may include multiple output interface modules, each corresponding to a specific supply voltage value. Each output interface module includes multiple output interfaces for connecting to the sequencer's load and enabling hot-swapping between the module and the load. The power management board 130 may also include multiple input interfaces, each corresponding to a specific supply voltage value. These input interfaces receive individual supply voltages and enable hot-swapping between the input interface and the DC / DC power module 120. In some embodiments, the DC / DC power module 120 may also be integrated into the power management board 130; this is not a limitation.

[0033] In some embodiments, the power management board 130 is also used to detect the operating parameters of the AC / DC power supply 111 and control the AC / DC power supply 111 to shut down if the operating parameters are not within the preset parameter range. The aforementioned operating parameters include at least one parameter such as the operating voltage, operating current, operating power, and total harmonic distortion of the AC / DC power supply 111, which is not limited here.

[0034] It is understood that the power management board 130 can monitor the operating parameters of the AC / DC power supply 111 in real time. When it detects that the operating parameters of the AC / DC power supply 111 are not within the normal preset parameter range, it determines that the AC / DC power supply 111 is abnormal and can shut it down for rapid isolation. The AC / DC power supply 111 may be equipped with a sampling circuit connected to the power management board 130. The sampling circuit collects operating parameters such as the operating voltage, operating current, and operating power of the AC / DC power supply 111 in real time and transmits them to the power management board 130.

[0035] The power system of this embodiment includes n parallel-connected AC / DC power supplies 111 in the AC / DC power module 110, and a power management board 130 that detects the operating parameters of each AC / DC power supply 111. If an AC / DC power supply 111 is found to be faulty based on its operating parameters, it can be shut down for rapid isolation. This ensures that when an AC / DC power supply 111 fails or malfunctions, the redundant backup AC / DC power supply 111 can seamlessly fill the missing power demand, thereby guaranteeing the stability of multiple loads operating in the sequencer. Furthermore, the DC / DC power module 120 converts the single input DC voltage of the AC / DC power module 110 into multiple independently adjustable supply voltages, thus meeting the power supply voltage requirements of different loads in the sequencer.

[0036] Please refer to Figure 2 , Figure 2 This is a schematic block diagram of the power supply system 100 of a second sequencer provided in an embodiment of this application. Wherein, with Figure 1 Compared to the power supply system 100 shown, Figure 2 The power system 100 shown includes a DC / DC power module 120 comprising m DC / DC power supplies 121, where m is a positive integer greater than or equal to 1 (in the example in the figure, m is 3).

[0037] In this embodiment, each DC / DC power supply 121 is used to convert DC voltage into a corresponding supply voltage. The power management board 130 is also used to control the operating state of each DC / DC power supply 121. The operating state includes an on / off state, meaning the power management board 130 can individually control the start and stop of each DC / DC power supply 121.

[0038] The DC / DC power supply 121 includes both non-isolated and isolated types, which can be selected according to the load requirements of the sequencer; no limitation is made here. For example, for loads in the sequencer that require electrical isolation, a DC / DC power supply 121 composed of an LLC resonant circuit can be selected, while for loads that do not require electrical isolation, a DC / DC power supply 121 composed of a buck-boost circuit can be selected. The power management board 130 can control the voltage value of the supply voltage output by the DC / DC power supply 121 through a pulse width modulation signal.

[0039] In some embodiments, the power management board 130 is further configured to detect the output voltage of the DC / DC power supply 121, and when it determines that the output voltage is not within the target output voltage range, control the DC / DC power supply 121 to shut down. The target output voltage range is based on the target voltage value corresponding to the DC / DC power supply 121. The target output voltage range can be ±1% of the target voltage value; for example, when the target voltage value is 12V, the target output voltage range can be 12 ± 0.12V.

[0040] The DC / DC power supply 121 may include a voltage sampling circuit, which is connected to the power management board 130 to collect the output voltage of the DC / DC power supply 121 in real time and transmit it to the power management board 130.

[0041] In some embodiments, such as Figure 3 As shown, the DC / DC power module 120 also includes m first switching units 122. The input terminal of each DC / DC power supply 121 is connected to the AC / DC power module 110 through one of the first switching units 122. It can be understood that the first switching unit 122 includes a power switching transistor. By controlling the on / off state of the first switch, the connection between the DC / DC power supply 121 and the upstream AC / DC power module 110 can be controlled. In case of abnormal faults such as overcurrent or overvoltage in the DC / DC power supply 121, the connection can be cut off by the first switching unit 122, thereby preventing cascading damage in the power system 100. Furthermore, during hot-swapping of the DC / DC power supply 121, cutting off the connection between the DC / DC power supply 121 and the AC / DC power module 110 through the first switching unit 122 can suppress voltage surges during hot-swapping. The first switching unit 122 can be a functional unit integrated within the DC / DC power supply 121 or a functional unit located outside the DC / DC power supply 121.

[0042] The power management board 130 is also used to control the first switching unit 122 corresponding to the target DC / DC power supply 121 to disconnect, so that the output voltage of the target DC / DC power supply 121 is not within the target output voltage range. That is, the power management board 130 controls the first switching unit 122 of the abnormal DC / DC power supply 121 to disconnect by detecting the output voltage of the DC / DC power supply 121 in real time, thereby achieving isolation of the abnormal DC / DC power supply 121.

[0043] In some embodiments, when the power system 100 is off, the power management board 130 controls all first switching units 122 to be turned off. When the power system 100 is started, the power management board 130 is also used to control each first switching unit 122 to be turned on in sequence according to a preset order, thereby controlling the DC / DC power supply 121 to be powered on in a time sequence according to a preset order, thereby avoiding current surges when the power system 100 is started.

[0044] Please refer to Figure 4 , Figure 4 This is a schematic block diagram of the power supply system 100 of a fourth sequencer provided in an embodiment of this application. Wherein, with Figure 3 Compared to the power supply system 100 shown, Figure 4 The AC / DC power module 110 of the power system 100 shown also includes a power bus and n second switching units 112. The output terminal of each AC / DC power supply 111 is connected to the power bus through the second switching unit 112. The power bus is used to connect to the DC / DC power module 120. Similarly, the second switching unit 112 can be a functional unit integrated within the AC / DC power supply 111 or a functional unit located outside the AC / DC power supply 111.

[0045] In this embodiment, the second switch includes a power transistor switch. The AC / DC power supply 111 is connected to the power bus via the second switch unit 112 for connection control and fault isolation. The power bus serves as the main channel for transmitting electrical energy to the AC / DC power module 110, collecting the output voltages of n AC / DC power supplies 111 to provide a high-voltage DC voltage input to the DC / DC power module 120 in the downstream circuit.

[0046] The power management board 130 is also used to control the second switching unit 112 corresponding to the target AC / DC power supply 111 to be disconnected, so that the operating parameters of the target AC / DC power supply 111 are not within the preset parameter range.

[0047] When the power system 100 is off, the power management board 130 controls all the second switching units 112 to be disconnected. When the power system 100 is started, the power management board 130 is also used to control each second switching unit 112 to be turned on in sequence according to a preset order, thereby controlling the AC / DC power supply 111 to output voltage to the power bus in a time sequence according to a preset order, thereby avoiding current surge when the power system 100 is started.

[0048] In some embodiments, the operating states of the AC / DC power supply 111 and DC / DC power supply 121 include a startup state and a shutdown state. The power management board 130 is also connected to a host computer and is used to report the operating state of each AC / DC power supply 111 and each DC / DC power supply 121 to the host computer. The power management board 130 is also used to report information about abnormal loads to the host computer.

[0049] Please refer to Figure 5 , Figure 5 This is a schematic block diagram of a power management board provided in an embodiment of this application. The power management board 130 includes a control unit 131, m input interfaces 132, and m output interface modules 133.

[0050] Each input interface 132 is used to connect to one of the DC / DC power supplies 121 to receive the supply voltage from the DC / DC power supply 121. Each output interface module 133 is used to receive the supply voltage (VCC1~VCC3) from one of the DC / DC power supplies 121 and transmit it to the load connected to it.

[0051] Each output interface module 133 includes k output interfaces 1331, each output interface 1331 being connected to one of the loads, where k is a positive integer greater than or equal to 1 (k=2 in the example in the figure). Each output interface 1331 receives the supply voltage from one of the DC / DC power supplies 121 via a third switch 1332. Furthermore, each output interface 1331 is connected to the control unit 131 via a sampling unit 1333. The sampling unit 1333 collects current and voltage data from the output interface 1331 and transmits it to the control unit 131. When the control unit 131 determines that the load connected to the output interface 1331 is abnormal based on the current and voltage data, it can control the corresponding third switch 1332 to open, thereby stopping power supply to the abnormal load, such as stopping power supply to a short-circuited or burnt-out load.

[0052] Please refer to Figure 6 , Figure 6This is a schematic block diagram of a sequencer provided in an embodiment of this application. The sequencer 10 includes multiple loads 101 and a power system 100 as described in any of the above embodiments. Each load 101 is connected to the power system 100 to receive the power supply voltage output by the power system 100.

[0053] In this embodiment, the beneficial effects that the sequencer 10 can achieve can be referred to the beneficial effects of the power system 100 in the previous embodiment, and will not be repeated here.

[0054] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer storage medium or transmitted through the computer storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., Digital Versatile Discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0055] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks. Unless otherwise specified, the technical features of this embodiment and its implementation can be combined arbitrarily.

[0056] The embodiments described above are merely preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application should fall within the protection scope defined by the claims of this application.

Claims

1. A power supply system for a sequencer, characterized in that, It includes an AC / DC power module, a DC / DC power module, and a power management board. The AC / DC power module is connected to the DC / DC power module, the DC / DC power module is connected to the power management board, and the power management board is communicatively connected to both the AC / DC power module and the DC / DC power module. The AC / DC power module includes n AC / DC power supplies connected in parallel with current sharing, where n is a positive integer greater than or equal to 1. The AC / DC power module is used to convert the received AC voltage into DC voltage and output it. The DC / DC power module is used to convert the received DC voltage into a supply voltage with m different target voltage values, where m is a positive integer greater than or equal to 1; The power management board is connected to the multiple loads of the sequencer and is used to provide the required power supply voltage to the loads, control the operating state of each AC / DC power supply, and adjust the target voltage value of each DC / DC power supply.

2. The power supply system as described in claim 1, characterized in that, The DC / DC power module includes m DC / DC power supplies, where m is a positive integer greater than or equal to 1. Each DC / DC power supply is used to convert the DC voltage into the corresponding supply voltage.

3. The power supply system as described in claim 2, characterized in that, The power management board is also used to control the operating status of each of the DC / DC power supplies.

4. The power supply system as described in claim 3, characterized in that, The power management board is also used to detect the output voltage of the DC / DC power supply, and when it is determined that the output voltage is not within the target output voltage range, it controls the DC / DC power supply to turn off. The target output voltage range is based on the target voltage value corresponding to the DC / DC power supply.

5. The power supply system as described in claim 4, characterized in that, The DC / DC power module further includes m first switching units, and the input terminal of each DC / DC power supply is connected to the AC / DC power module through one of the first switching units; The power management board is also used to control the first switching unit corresponding to the target DC / DC power supply to disconnect, and the output voltage of the target DC / DC power supply is not within the target output voltage range.

6. The power supply system as described in claim 1, characterized in that, The power management board is also used to detect the operating parameters of the AC / DC power supply and control the AC / DC power supply to shut down if the operating parameters are not within the preset range.

7. The power supply system as described in claim 6, characterized in that, The AC / DC power module further includes a power bus and n second switching units. The output terminal of each AC / DC power supply is connected to the power bus through the second switching unit. The power bus is used to connect to the DC / DC power module. The power management board is also used to control the second switching unit corresponding to the target AC / DC power supply to disconnect, and the operating parameters of the target AC / DC power supply are not within the preset parameter range.

8. The power supply system as described in claim 3, characterized in that, The operating states include a startup state and a shutdown state; the power management board is also connected to a host computer for reporting the operating status of each AC / DC power supply and each DC / DC power supply to the host computer.

9. The power supply system as described in claim 8, characterized in that, The power management board is also used to report information about abnormal loads to the host computer.

10. A sequencer, characterized in that, It includes multiple loads and a power supply system as described in any one of claims 1 to 9; each of the loads is connected to the power supply system to receive the supply voltage output by the power supply system.

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