CN116909376B - Server power supply circuit and control method thereof - Google Patents

Server power supply circuit and control method thereof Download PDF

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Publication number
CN116909376B
CN116909376B CN202311163226.9A CN202311163226A CN116909376B CN 116909376 B CN116909376 B CN 116909376B CN 202311163226 A CN202311163226 A CN 202311163226A CN 116909376 B CN116909376 B CN 116909376B
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China
Prior art keywords
module
voltage
power
voltage conversion
conversion module
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CN116909376A (en
Inventor
李建宇
花得阳
王令岩
张东宇
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Suzhou Inspur Intelligent Technology Co Ltd
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Suzhou Inspur Intelligent Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The invention relates to the technical field of server power supply, and discloses a server power supply circuit and a control method thereof, wherein the invention comprises the following steps: the device comprises a voltage conversion module, a power-down maintaining module and a control module; the input end of the voltage conversion module is connected with the power-down maintaining module to convert the input voltage into a target voltage; the power-down maintaining module comprises an energy storage element and a power supply element; the energy storage element stores energy provided by the input voltage of the circuit and transmits the energy to the power supply element; the power supply element forms voltage by releasing energy transferred by the energy storage element so as to maintain the voltage input into the voltage conversion module; the control module is respectively connected with the voltage conversion module and the power-down holding module, and controls the access state of the power-down holding module according to the current state information. Thus, the access state of the power-down maintaining module is controlled through the current state information, so that the target voltage is maintained when the input voltage of the circuit is powered down, a certain time is provided for the backup data of the server, and the reliability of the power supply circuit of the server is improved.

Description

Server power supply circuit and control method thereof
Technical Field
The invention relates to the technical field of server power supplies, in particular to a server power supply circuit and a control method thereof.
Background
The server power source is used as a power supply unit (Power Support Unit, PSU) of the server, and needs to have high reliability, so that the server power source can detect and report relevant input and output states in real time and provide the relevant input and output states for the server, and simultaneously, the server power source can timely handle the abnormality, avoid the abnormality from being dispersed, and cause larger accidents or larger losses. Especially when the input voltage of the server power supply is abnormal in power failure, the server power supply cannot normally supply power to the server, so that the server cannot timely backup related data in the server when the server power supply cannot supply power to the server, and the reliability of the server power supply is reduced.
Disclosure of Invention
In view of the above, the present invention provides a server power circuit and a control method thereof, so as to solve the problem that the server cannot backup data in time when the input voltage of the server power fails to be abnormal, and the reliability of the server power is low.
In a first aspect, the present invention provides a server power circuit, the circuit comprising: the device comprises a voltage conversion module, a power-down maintaining module and a control module;
the input end of the voltage conversion module is connected with the power-down maintaining module; the voltage conversion module is used for converting the input voltage of the voltage conversion module into a target voltage; the target voltage is used for supplying power to the server;
The power-down maintaining module is used for maintaining the magnitude of the target voltage when the input voltage of the circuit is powered down; the power-down maintaining module comprises an energy storage element and a power supply element;
the first end of the energy storage element is connected with the input end of the circuit, and the second end of the energy storage element is connected with the input end of the voltage conversion module; the energy storage element is used for storing energy provided by the input voltage of the circuit and transmitting the energy to the power supply element;
the first end of the power supply element is connected with the input end of the circuit, and the second end of the power supply element is connected with the input end of the voltage conversion module; the power supply element forms voltage by releasing energy transferred by the energy storage element so as to maintain the voltage of the input voltage conversion module when the input voltage of the circuit is powered down, thereby maintaining the magnitude of the target voltage;
the control module is respectively connected with the voltage conversion module and the power-down holding module, and is used for collecting current state information of the circuit and controlling the access state of the power-down holding module according to the current state information so as to start the power-down holding module when the input voltage of the circuit is powered down.
Therefore, the access state of the power-down maintaining module can be controlled through the current state information acquired by the control module, so that the size of the target voltage is maintained when the input voltage of the circuit is powered down, a certain time is provided for server backup data, and the reliability of a power circuit of the server is improved.
In an alternative embodiment, the power down holding module further comprises a diversion switch; the diversion switch is used for controlling the frequency and the duration of energy transfer from the energy storage element to the power supply element so as to control the voltage provided by the power supply element;
the first end of the flow guiding switch is connected with the second end of the energy storage element, and the second end of the flow guiding switch is connected with the first end of the power supply element;
when the diversion switch is turned on, the energy storage element stores energy provided by the input voltage of the circuit;
when the diversion switch is turned off, the energy storage element transmits energy to the power supply element, and the power supply element releases the energy transmitted by the energy storage element to form voltage.
Thus, the voltage provided by the power supply element can be controlled through the diversion switch, so that the voltage of the input voltage conversion module is maintained when the input voltage of the circuit is powered down, and the target voltage is maintained.
In an alternative embodiment, the circuit further comprises a power down hold switch;
the first end of the power-down maintaining switch is connected with the power-down maintaining module, the second end of the power-down maintaining switch is connected with the voltage conversion module, and the third end of the power-down maintaining switch is connected with the control module;
the control module controls the connection and/or disconnection of the power-down holding module and the voltage conversion module through the power-down holding switch so as to control the connection state of the power-down holding module.
In an alternative embodiment, the power down hold switch is a transistor;
the control module controls the conduction of the transistor, and controls the connection of the power-down maintaining module and the voltage conversion module so as to control the starting of the power-down maintaining module;
and/or the control module controls the turn-off of the transistor, controls the disconnection of the power-down maintaining module and the voltage conversion module, and controls the turn-off of the power-down maintaining module.
In this way, the connection or disconnection of the power-down holding module and the voltage conversion module can be controlled through the power-down holding switch, so that the connection state of the power-down holding module is controlled.
In an alternative embodiment, the circuit further comprises a hot plug module, and the hot plug module is respectively connected with the control module and the control module;
the hot plug module is used for inhibiting a current peak generated by an input current when the circuit is plugged in and plugged out in an electrified manner;
the control module is used for controlling the access state of the hot plug module.
Therefore, the hot plug module is connected into the circuit to restrain the current peak generated by the input current when the circuit is plugged in and out, ensure the stability of the input current and avoid the fluctuation of the current output by the server power supply circuit.
In an alternative embodiment, the control module includes a first controller and a second controller; the first controller and the second controller are electrically isolated and connected in a communication way;
The current state information comprises an input voltage and a first temperature of an input end of the circuit, and an output current and a second temperature of an output end of the voltage conversion module;
the first controller is connected with the input end of the circuit and is used for collecting input voltage and first temperature;
the second controller is connected with the output end of the voltage conversion module and is used for collecting output current and second temperature.
Therefore, the input end and the output end of the voltage conversion module can be respectively collected in relevant states through the first controller and the second controller, and electrical isolation is formed while sampling and state information collection of all links of the server power supply are guaranteed, so that the influence on the output end caused by faults of the input end of the server power supply circuit is avoided.
In an alternative embodiment, the first controller is connected to the input of the voltage conversion module;
the first controller determines the working state of the circuit according to the input voltage and controls the access state of the power failure holding module, the hot plug module and/or the voltage conversion module.
Therefore, the control of the power failure maintaining module and the hot plug module can be realized through the first controller, so that the abnormality generated by the server power supply circuit is processed in time, and the reliability of the server power supply circuit is improved.
In an alternative embodiment, the first controller determines the working state of the circuit according to the first temperature and controls the access state of the voltage conversion module;
and the second controller determines the working state of the voltage conversion module according to the output current and the second temperature and controls the access state of the voltage conversion module.
Therefore, the voltage conversion module can be controlled through the first controller and the second controller, so that the abnormality generated by the server power supply circuit is processed in time, and the reliability of the server power supply circuit is improved.
In a second aspect, the present invention provides a method for controlling a server power supply circuit, where the method is applied to the server power supply circuit of the first aspect or any embodiment corresponding to the first aspect, and includes:
acquiring current state information of a server power supply circuit;
and controlling the access state of the power-down maintaining module based on the current state information.
Therefore, the access state of the power-down maintaining module can be controlled through the current state information acquired by the control module, so that the size of the target voltage is maintained when the input voltage of the circuit is powered down, a certain time is provided for server backup data, and the reliability of a power circuit of the server is improved.
In an alternative embodiment, the current state information includes an input voltage at an input of the server power circuit; based on the current state information, controlling the access state of the power-down maintaining module, including:
when the input voltage is smaller than a first preset voltage, determining that the working state of the power supply circuit of the server is a power-down state, and sending input undervoltage alarm information;
the power-down maintaining switch is controlled to be turned on, and the power-down maintaining module is controlled to be communicated with the voltage conversion module so as to turn on the power-down maintaining module.
Therefore, when the input voltage of the server power supply circuit is in a power-down state but not under-voltage, the voltage of the input voltage conversion module is maintained through the power-down maintaining module, the size of the target voltage output by the server power supply circuit is ensured, and meanwhile, the input under-voltage alarm information is sent, so that a user terminal is reminded of timely checking and adjusting the input voltage, and the under-voltage of the input voltage is avoided.
In an alternative embodiment, based on the current state information, controlling the access state of the power-down holding module further includes:
when the input voltage is greater than or equal to a first preset voltage, determining that the working state of the server power supply circuit is a normal state;
And the power-down maintaining module and the voltage conversion module are controlled to be disconnected by controlling the power-down maintaining switch to be turned off so as to turn off the power-down maintaining module.
Thus, the power-down maintaining module can be turned off when the input voltage of the server power supply circuit is recovered to be normal.
In an alternative embodiment, based on the current state information, controlling the access state of the power-down holding module further includes:
when the input voltage is smaller than a second preset voltage, determining that the working state of the power supply circuit of the server is a complete power-down state, and sending input undervoltage fault information; the second preset voltage is smaller than the first preset voltage;
and the power-down maintaining module and the voltage conversion module are controlled to be disconnected by controlling the power-down maintaining switch to be turned off so as to turn off the power-down maintaining module.
Therefore, when the input voltage of the server power supply circuit is in a complete power-down state, the power-down holding module is also closed only when the power-down holding module cannot maintain the output target voltage of the server power supply circuit, and the input undervoltage fault information is sent to remind a user terminal of timely checking and adjusting the input voltage.
In an alternative embodiment, the method further comprises:
And controlling the access state of the hot plug module and/or the voltage conversion module based on the current state information.
Therefore, the access state of the hot plug module and/or the voltage conversion module can be controlled through the current state information, so that the server power supply circuit abnormality can be responded and processed in time.
In an alternative embodiment, the current state information includes an input voltage at an input of the server power circuit; based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module comprises the following steps:
when the input voltage is smaller than a third preset voltage, determining that the working state of the server power supply circuit is an under-voltage state, and sending input under-voltage fault information; the third preset voltage is smaller than the first preset voltage and larger than the second preset voltage;
and controlling the hot plug module and the voltage conversion module to be closed.
Therefore, when the input voltage of the service power supply circuit is in an under-voltage state, the hot plug module and the voltage conversion module are turned off, the power failure maintaining module is used for maintaining the output target voltage of the server power supply circuit, and meanwhile, the input under-voltage fault information is sent to remind a user terminal of timely checking and adjusting the input voltage, so that the condition that the input voltage is always under-voltage and even completely power failure occurs is avoided.
In an alternative embodiment, the present state information includes an output current of the voltage conversion module; based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module comprises the following steps:
when the output current is larger than the first preset current, the working state of the voltage conversion module is determined to be an overcurrent alarm state, and the overcurrent alarm information is sent and output.
Therefore, when the output current of the voltage conversion module is in an overcurrent alarm state, the output overcurrent alarm information can be sent to remind the user terminal of timely checking and adjusting the voltage conversion module.
In an alternative embodiment, based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module further includes:
when the output current is larger than a second preset current, determining that the working state of the voltage conversion module is an overcurrent fault state, and sending and outputting overcurrent fault information; the second preset current is larger than the first preset current;
the control voltage conversion module is turned off.
Therefore, when the output current of the voltage conversion module is in an overcurrent fault state, the voltage conversion module is turned off, further faults and damage to related components caused by the overcurrent of the output current are avoided, and meanwhile, output overcurrent fault information is sent to remind a user terminal of timely checking and adjusting the voltage conversion module.
In an alternative embodiment, the current state information includes a first temperature of the server power circuit; based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module comprises the following steps:
when the first temperature is larger than a first preset temperature, determining that the working state of the server power supply circuit is an over-temperature alarm state, and sending first over-temperature alarm information.
Therefore, when the temperature of the server power supply circuit is in an over-temperature alarm state, the first over-temperature alarm information can be sent to remind the user side of timely checking and adjusting the server power supply circuit.
In an alternative embodiment, based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module further includes:
when the first temperature is higher than the second preset temperature, determining that the working state of the power supply circuit of the server is an overtemperature fault state, and sending first overtemperature fault information; the second preset temperature is greater than the first preset temperature;
the control voltage conversion module is turned off.
Therefore, when the temperature of the server power supply circuit is in an over-temperature fault state, the voltage conversion module is turned off, further faults and damage to related components caused by the over-high temperature are avoided, and meanwhile, first over-temperature fault information is sent to remind a user side of timely checking and adjusting the server power supply circuit.
In an alternative embodiment, the current state information includes a second temperature of the voltage conversion module; based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module comprises the following steps:
when the second temperature is higher than a third preset temperature, determining that the working state of the voltage conversion module is an over-temperature alarm state, and sending second over-temperature alarm information.
Therefore, when the temperature of the voltage conversion module is in an over-temperature alarm state, the first over-temperature alarm information can be sent to remind the user side of timely checking and adjusting the power supply circuit of the server.
In an alternative embodiment, based on the current state information, controlling the access state of the hot plug module and/or the voltage conversion module further includes:
when the second temperature is higher than the fourth preset temperature, determining that the working state of the voltage conversion module is an overtemperature fault state, and sending second overtemperature fault information; the fourth preset temperature is greater than the third preset temperature;
the control voltage conversion module is turned off.
Therefore, when the temperature of the voltage conversion module is in an over-temperature fault state, the voltage conversion module is turned off, further faults and damage to related components caused by the over-high temperature are avoided, and meanwhile, first over-temperature fault information is sent to remind a user side of timely checking and adjusting a server power supply circuit.
In an alternative embodiment, obtaining current state information of a server power circuit includes:
acquiring state information of a server power supply circuit every preset time;
and carrying out average value processing on the acquired preset number of state information, and taking the state information after average value processing as current state information.
Therefore, the current state information can be obtained through a method of sampling and averaging for multiple times, the problem of inaccurate data obtained through single sampling is avoided, and the reliability and accuracy of control of the server power supply circuit are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a structure of a server power supply circuit according to an embodiment of the present invention;
FIG. 2 is a circuit schematic of a server power circuit according to an embodiment of the invention;
FIG. 3 is a schematic diagram of another server power circuit according to an embodiment of the invention;
FIG. 4 is a flow chart of a method for controlling a server power circuit according to an embodiment of the invention;
FIG. 5 is a flow chart of one embodiment of a method for controlling a server power circuit according to an embodiment of the present invention;
FIG. 6 is a flow chart of another server power circuit control method according to an embodiment of the invention;
reference numerals are further described below:
a 100-voltage conversion module; 200-a power-down holding module; 210-an energy storage element; 220-a power supply element; 230-a diversion switch; 300-a control module; 310-a first controller; 320-a second controller; 400-power-down hold switch; 500-hot plug modules.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The server power supply is used as a power supply unit of the server and is a digital power supply with high power density and complex functions. The current power supply units used on the server all adopt 220V alternating current or 380V direct current as input and convert the input into 12V or 54V low-voltage direct current for output so as to supply power for the server. In the related art, in order to ensure the stability of power supply of the server power supply, the server power supply not only can provide voltage and current output with enough power for the server, but also generally has certain information detection and reporting functions, can collect state parameters of relevant input and output such as temperature, voltage and current information of input and output of the server power supply, and the server judges the reported input and output state after the server power supply detects and reports the relevant input and output state, so that hysteresis is usually existed in determining and processing abnormality or failure in the server power supply, and the reliability of the server power supply is reduced. Meanwhile, when the input voltage of the server power supply is abnormal in power failure, the server power supply cannot normally supply power to the server, so that the server cannot timely backup related data in the server when the server power supply cannot supply power to the server, and the reliability of the server power supply is reduced.
In order to solve the above problems, embodiments of the present invention provide a server power supply circuit and a control method thereof. In one aspect, an embodiment of the present invention provides a server power circuit, including: a voltage conversion module 100, a power down holding module 200, and a control module 300; the input end of the voltage conversion module 100 is connected with the power-down maintaining module 200; the voltage conversion module 100 is configured to convert an input voltage of the voltage conversion module 100 into a target voltage; the target voltage is used for supplying power to the server; the power-down maintaining module 200 is used for maintaining the magnitude of a target voltage when the input voltage of the circuit is powered down; the power down holding module 200 includes an energy storage element 210 and a power supply element 220; a first end of the energy storage element 210 is connected with an input end of the circuit, and a second end of the energy storage element 210 is connected with an input end of the voltage conversion module 100; the energy storage element 210 is configured to store energy provided by an input voltage of the circuit and transfer the energy to the power supply element 220; a first end of the power supply element 220 is connected with an input end of the circuit, and a second end of the power supply element 220 is connected with an input end of the voltage conversion module 100; the power supply element 220 forms a voltage by discharging the energy transferred from the energy storage element 210 to maintain the voltage of the input voltage conversion module 100 when the input voltage of the circuit is powered down, thereby maintaining the magnitude of the target voltage; the control module 300 is respectively connected with the voltage conversion module 100 and the power-down holding module 200, and the control module 300 is used for collecting current state information of the circuit and controlling the access state of the power-down holding module 200 according to the current state information so as to start the power-down holding module 200 when the input voltage of the circuit is powered down. Thus, the access state of the power-down maintaining module 200 can be controlled by the current state information acquired by the control module 300, so that the target voltage is maintained when the input voltage of the circuit is powered down, a certain time is provided for server backup data, and the reliability of the power circuit of the server is improved.
On the other hand, the embodiment of the invention provides a control method of a server power supply circuit, which is applied to the server power supply circuit, and specifically comprises the following steps: acquiring current state information of a server power supply circuit; based on the current state information, the access state of the power down holding module 200 is controlled. Thus, the access state of the power-down maintaining module 200 can be controlled by the current state information acquired by the control module 300, so that the target voltage is maintained when the input voltage of the circuit is powered down, a certain time is provided for server backup data, and the reliability of the power circuit of the server is improved.
According to an embodiment of the present invention, a server power circuit embodiment is provided, as the term "module" is used below, a combination of software and/or hardware that can implement a predetermined function. It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this embodiment, a server power supply circuit is provided, fig. 1 is a schematic structural diagram of the server power supply circuit according to an embodiment of the present invention, and as shown in fig. 1, the circuit includes: a voltage conversion module 100, a power down holding module 200, and a control module 300.
The input end of the voltage conversion module 100 is connected to the power-down maintaining module 200, and the voltage conversion module 100 is configured to convert an input voltage of the voltage conversion module 100 into a target voltage, where the target voltage is configured to supply power to the server.
The power-down holding module 200 is used for holding the magnitude of the target voltage when the input voltage of the circuit is powered down. The power down holding module 200 includes an energy storage element 210 and a power supply element 220. A first end of the energy storage element 210 is connected with an input end of the circuit, and a second end of the energy storage element 210 is connected with an input end of the voltage conversion module 100; the energy storage element 210 is used to store energy provided by the input voltage of the circuit and transfer the energy to the power supply element 220. A first end of the power supply element 220 is connected with an input end of the circuit, and a second end of the power supply element 220 is connected with an input end of the voltage conversion module 100; the power supply element 220 forms a voltage by discharging the energy transferred from the energy storage element 210 to maintain the voltage of the input voltage conversion module 100 when the input voltage of the circuit is powered down, thereby maintaining the magnitude of the target voltage.
The control module 300 is respectively connected with the voltage conversion module 100 and the power-down holding module 200, and the control module 300 is used for collecting current state information of the circuit and controlling the access state of the power-down holding module 200 according to the current state information so as to start the power-down holding module 200 when the input voltage of the circuit is powered down.
Through the above circuit structure, the access state of the power-down maintaining module 200 can be controlled by the current state information acquired by the control module 300, so that the magnitude of the target voltage is maintained when the input voltage of the circuit is powered down, a certain time is provided for the backup data of the server, and the reliability of the power supply circuit of the server is improved.
In an alternative implementation, fig. 2 is a schematic circuit diagram of a server power circuit according to an embodiment of the present invention, and it should be noted that fig. 2 only schematically illustrates related modules and connection relationships between the modules, and more devices or modules may be included in the actual server power circuit; fig. 3 is a schematic structural diagram of another server power circuit according to an embodiment of the present invention, as shown in fig. 2 and 3, the power-down maintaining module 200 may further include a diversion switch 230, where the diversion switch 230 is used to control the frequency and duration of the energy storage element 210 transferring energy to the power supply element 220, so as to control the voltage provided by the power supply element 220. The first end of the diversion switch 230 is connected with the second end of the energy storage element 210, and the second end of the diversion switch 230 is connected with the first end of the power supply element 220; when the diversion switch 230 is turned on, the energy storage element 210 stores energy provided by the input voltage of the circuit; when the diversion switch 230 is turned off, the energy storage element 210 transfers energy to the power supply element 220, and the power supply element 220 releases the energy transferred by the energy storage element 210 to form a voltage. Thus, the magnitude of the voltage supplied from the power supply element 220 is controlled by the diversion switch 230, so that the magnitude of the voltage of the input voltage conversion module 100 is maintained when the input voltage of the circuit is powered down, thereby maintaining the magnitude of the target voltage.
In an alternative embodiment, the control module 300 may also be connected to the diversion switch 230, and control the frequency and duration of energy transfer from the energy storage element 210 to the power supply element 220 by controlling the on-off frequency of the diversion switch 230, so that the on-off frequency of the diversion switch 230 is real-time according to the power failure condition of the input voltage of the server power circuit, so that the voltage output by the power failure maintaining module 200 to the voltage conversion module 100 can be always maintained within a constant range.
In an alternative embodiment, the energy storage element 210 may be an inductor, the power supply element 220 may be a capacitor, and the diversion switch 230 may be a transistor.
In an alternative embodiment, the power down holding module 200 may also include a filter capacitor and a diode. The first end of the filter capacitor is connected to the first end of the energy storage element 210, the second end of the filter capacitor is connected to the second end of the diversion switch 230, and the filter capacitor is used for filtering out the voltage input into the power-down holding module 200, that is, noise interference of the input voltage of the server power supply circuit, so as to improve the stability of the voltage output by the power-down holding module 200; the first end of the diode is connected to the second end of the energy storage element 210, the second end of the diode is connected to the second end of the power supply element 220, and the diode is used to prevent the power supply element 220 from discharging to the ground when the diverter switch 230 is turned off.
In an alternative embodiment, as shown in fig. 2 and 3, the server power circuit further includes a power-down maintaining switch 400, a first end of the power-down maintaining switch 400 is connected to the power-down maintaining module 200, a second end of the power-down maintaining switch 400 is connected to the voltage converting module 100, and a third end of the power-down maintaining switch 400 is connected to the control module 300. The control module 300 may control the connection and/or disconnection of the power down holding module 200 and the voltage conversion module 100 through the power down holding switch 400 to control the connection state of the power down holding module 200.
In an alternative embodiment, as shown in FIG. 2, the power down retention switch 400 may be a transistor. Specifically, the control module 300 controls the conduction of the transistor, and controls the power-down holding module 200 to be communicated with the voltage conversion module 100, so as to control the starting of the power-down holding module 200; the control module 300 controls the turning off of the transistor, and controls the power-down maintaining module 200 and the voltage converting module 100 to be turned off, so as to control the power-down maintaining module 200 to be turned off. Thereby controlling connection or disconnection of the power down holding module 200 and the voltage conversion module 100 through the power down holding switch 400, thereby controlling an on state of the power down holding module 200.
In an alternative embodiment, the power down hold switch 400 may also be other electronically controlled switches or digital switches.
In an alternative embodiment, as shown in fig. 2 and 3, the server power circuit may further include a hot plug module 500. The hot plug module 500 is respectively connected with the control module 300 and the control module 300, and the hot plug module 500 is used for inhibiting a current peak generated by an input current when the circuit is plugged in and plugged out in an electrified manner; the control module 300 is used for controlling the access state of the hot plug module 500. Therefore, by connecting the hot plug module 500 into the circuit, the current peak generated by the input current when the circuit is plugged in and out is restrained, the stability of the input current is ensured, and the fluctuation of the current output by the server power supply circuit is avoided.
In an alternative embodiment, as shown in fig. 2, the hot plug module 500 may suppress a current spike generated by an input current when the circuit is plugged in and out by using the first transistor or the electromagnetic relay, so that the input current is stable, and a fluctuation of the current output by the server power circuit is avoided. Accordingly, devices or functional units other than the first transistor or the electromagnetic relay for implementing other auxiliary functions may be included in the hot plug module 500.
In an alternative embodiment, as shown in fig. 2, the voltage conversion module 100 may be, but is not limited to, an LLC half-bridge resonant converter or a phase-shifted full-bridge converter, etc. that may be used for dc voltage conversion.
In an alternative embodiment, as shown in fig. 2, the server power supply circuit may further include an electromagnetic interference filtering module, corresponding to the EMI portion in fig. 2, where the electromagnetic interference filtering module is configured to filter electromagnetic interference in the input voltage of the server power supply circuit, and specifically may filter higher harmonics and high-frequency harmonics of the input voltage, so as to implement electromagnetic compatibility, and ensure normal operation of the server power supply circuit.
In an alternative embodiment, as shown in fig. 2 and 3, the control module 300 includes a first controller 310 and a second controller 320, where the first controller 310, i.e., the Pri DSP in fig. 3, and the second controller 320, i.e., the Sec DSP in fig. 3, are electrically Isolated by an isolator and are communicatively coupled based on a universal asynchronous receiver/Transmitter (UART) serial port protocol. The current state information includes an input voltage and a first temperature of an input terminal of the server power circuit, and an output voltage and a second temperature of an output terminal of the voltage conversion module 100. Specifically, the first controller 310 is connected to the input terminal of the server power circuit, and collects the input voltage and the first temperature of the input terminal of the circuit; the second controller 320 is connected to the output terminal of the voltage conversion module 100, and collects the output current and the second temperature of the output terminal of the voltage conversion module 100. In this way, the first controller 310 and the second controller 320 can respectively collect the relevant states of the input end and the output end of the voltage conversion module 100, so that electrical isolation is formed while sampling and collecting state information of each link of the server power supply are ensured, and the influence of faults generated at the input end of the server power supply circuit on the output end is avoided.
In an alternative embodiment, the first controller 310 is connected to an input of the voltage conversion module 100. The first controller 310 determines the operating state of the circuit according to the input voltage and controls the on state of the power down holding module 200, the hot plug module 500, and/or the voltage conversion module 100. In this way, the first controller 310 can control the power failure holding module 200 and the hot plug module 500, so as to process the voltage abnormality generated by the server power circuit in time, and improve the reliability of the server power circuit.
In an alternative embodiment, the first controller 310 determines the operating state of the circuit according to the first temperature, and controls the on state of the voltage conversion module 100; the second controller 320 determines an operation state of the voltage conversion module 100 according to the output current and the second temperature, and controls an on state of the voltage conversion module 100. In this way, the voltage conversion module 100 can be controlled by the first controller 310 and the second controller 320, so that the abnormality generated by the server power circuit can be handled in time, and the reliability of the server power circuit is improved.
According to an embodiment of the present invention, there is provided a server power supply circuit control method embodiment, it being noted that the steps shown in the flowcharts of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.
In this embodiment, a method for controlling a server power supply circuit is provided, which may be used for the server power supply circuit described above, and fig. 4 is a flowchart of a method for controlling a server power supply circuit according to an embodiment of the present invention, as shown in fig. 4, where the flowchart includes the following steps:
step S401, obtaining current state information of a server power circuit.
In the embodiment of the present invention, the current state information is obtained by sampling each link and module in the server power supply circuit by the control module 300, and may specifically include information such as temperature, voltage, and current of each module.
In an alternative embodiment, the current state information may be divided into current state information obtained by sampling the input of the server power circuit and current state information obtained by sampling the output of the voltage conversion module 100. Specifically, the current state information obtained by sampling the input end of the server power supply circuit includes the input voltage and the first temperature of the server power supply circuit, and may be obtained by sampling by the first controller 310; the current state information obtained by sampling the output terminal of the voltage conversion module 100 includes the output current of the voltage conversion module 100 and the second temperature, and may be obtained by sampling the second controller 320.
In an alternative embodiment, the output current of the voltage conversion module 100 may be determined by a resistor provided at the output terminal of the voltage conversion module 100, and the current flowing through the resistor, that is, the output current, may be calculated by sampling the voltage difference across the resistor.
In step S402, the access state of the power-down maintaining module 200500100 is controlled based on the current state information.
In the embodiment of the present invention, the control module 300 controls the access state of the power-down maintaining module 200500100 based on the current state information, specifically, the input voltage of the power supply circuit of the server. The access state may include on and off, that is, on and off of the power down holding module 200 is controlled.
In an alternative embodiment, the current status information further includes a first temperature of the server power circuit, and the output current and the second temperature of the voltage conversion module 100, and accordingly, the control module 300 is also capable of controlling 200500100 the connection status of the hot plug module 500 and the voltage conversion module 100 according to different situations of the output current, the first temperature, and the second temperature.
In an alternative embodiment, when the current state information is the input voltage of the server power circuit, the above step S402 may be divided into the following cases:
In the first case, when the input voltage is smaller than a first preset voltage, determining that the working state of the power supply circuit of the server is a power-down state, and sending input undervoltage alarm information; the power down holding module 200 is controlled to communicate with the voltage conversion module 100 by controlling the power down holding switch 400 to be turned on, so as to turn on the power down holding module 200. The first preset voltage is lower than the normal input voltage of the server power circuit, but is higher than the voltage in the under-voltage state, at this time, the input voltage of the server power circuit may be lower due to voltage fluctuation and other reasons, and the voltage value of the input voltage conversion module 100 can be normal by boosting the input voltage through the power-down control module 300, so that the target voltage output by the server power circuit is ensured to be in the normal state. Therefore, when the input voltage of the server power supply circuit is in a power-down state but is not under-voltage, the power-down maintaining module 200 maintains the voltage of the input voltage conversion module 100, so that the size of the target voltage output by the server power supply circuit is ensured, a certain time is reserved for the server to backup related data in the target voltage, the phenomenon that the server cannot work normally and data are lost due to continuous under-voltage of the input voltage of the subsequent server power supply circuit is avoided, and meanwhile, input under-voltage alarm information is sent to remind a user terminal to check and adjust the input voltage in time, and the input voltage is prevented from being under-voltage.
In the second case, when the input voltage is greater than or equal to a first preset voltage, determining that the working state of the server power supply circuit is a normal state; the power down holding module 200 and the voltage conversion module 100 are controlled to be turned off by controlling the power down holding switch 400 to be turned off to turn off the power down holding module 200. At this time, the input voltage is restored to be normal, and the power-down maintaining module 200 is not required to boost the input voltage, so that the power-down maintaining module 200 is turned off.
In the third case, when the input voltage is smaller than a third preset voltage, determining that the working state of the server power supply circuit is an under-voltage state, and sending input under-voltage fault information; the hot plug module 500 and the voltage conversion module 100 are controlled to be turned off. The third preset voltage is smaller than the first preset voltage and larger than the second preset voltage, the third preset voltage is an input voltage in an under-voltage state, when the input voltage is smaller than the third preset voltage, the input voltage of the server power supply circuit can be confirmed to be in an under-voltage state, but still is not completely powered down, and at the moment, the voltage value of the input voltage conversion module 100 cannot be raised to a normal value only by means of boosting the input voltage by the power-down control module 300, so that the hot plug module 500 and the voltage conversion module 100 are closed, the voltage is directly output as the output voltage of the server power supply circuit through the power-down holding module 200, and meanwhile, a certain time is provided for the server to execute the operation of reserving necessary data, so that the data loss caused by sudden power failure is avoided. Therefore, when the input voltage of the service power supply circuit is in an under-voltage state, the hot plug module 500 and the voltage conversion module 100 are turned off, the power failure maintaining module 200 is used for maintaining the output target voltage of the server power supply circuit, and meanwhile, the input under-voltage fault information is sent to remind the user terminal to timely check and adjust the input voltage, so that the condition that the input voltage is under-voltage all the time and even completely power failure occurs is avoided.
Fourth, when the input voltage is smaller than the second preset voltage, determining that the working state of the power supply circuit of the server is a complete power-down state, and sending input undervoltage fault information; the power down holding module 200 and the voltage conversion module 100 are controlled to be turned off by controlling the power down holding switch 400 to be turned off to turn off the power down holding module 200. The second preset voltage is smaller than the first preset voltage and the third preset voltage, the second preset voltage is an input voltage in a complete power-down state, and the voltage directly output by the power-down control module 300 cannot maintain the output voltage of the server power circuit at this time, so that the power-down holding module 200 is turned off. Therefore, when the input voltage of the server power supply circuit is in a complete power-down state, the power-down holding module 200 is also turned off and the input under-voltage fault information is sent to remind the user terminal to timely check and adjust the input voltage even though the power-down holding module 200 cannot maintain the output target voltage of the server power supply circuit.
In an alternative embodiment, when the present state information is the output current of the voltage conversion module 100, the step S402 includes the following cases:
In the first case, when the output current is greater than the first preset current, the working state of the voltage conversion module 100 is determined to be an overcurrent alarm state, and the output overcurrent alarm information is sent. The first preset current may be a current maximum value in a normal state, when the output current is greater than the first preset current, the voltage conversion module 100 is over-current, and an over-current abnormality is generated, but the voltage conversion module 100 can still work at this time, so that only output over-current alarm information is sent to remind the user terminal to timely check and adjust the voltage conversion module 100.
In the second case, when the output current is greater than the second preset current, determining that the working state of the voltage conversion module 100 is an overcurrent fault state, and transmitting output overcurrent fault information; the control voltage conversion module 100 is turned off. When the output current is greater than the second preset current, it may be determined that the voltage conversion module 100 has an overcurrent fault, and at this time, the voltage conversion module 100 cannot work normally, or even if the voltage conversion module can continue to work, an abnormality or a fault is gradually generated due to the overcurrent fault, or the abnormality is transmitted to the server, so that at this time, the voltage conversion module 100 needs to be turned off, further faults and damage to related components caused by the overcurrent of the output current are avoided, and at the same time, output overcurrent fault information is sent to remind the user terminal to timely check and adjust the voltage conversion module 100.
By the method, the first preset current is set to be a recovery value, the second preset current is set to be an overcurrent value, hysteresis control is formed, the output current is considered to be normal only when the output current is lower than the first preset current, so that the output current can be reliably reduced to a normal current value by adjusting the output current, and reliability is improved.
In an alternative embodiment, when the current state information is the first temperature of the server power circuit, the step S402 includes the following cases:
in the first case, when the first temperature is greater than a first preset temperature, the working state of the server power supply circuit is determined to be an over-temperature alarm state, and first over-temperature alarm information is sent. The first preset temperature may be the maximum temperature in a normal state, when the first temperature is greater than the first preset temperature, the server power supply circuit is over-current, and generates an over-current abnormality, but the server power supply circuit can still work at this time, so that only the first over-temperature alarm information is sent to remind the user side to timely check and adjust the server power supply circuit.
In the second case, when the first temperature is greater than the second preset temperature, determining that the working state of the server power supply circuit is an overtemperature fault state, and sending first overtemperature fault information; the control voltage conversion module 100 is turned off. The second preset temperature is greater than the first preset temperature, when the output temperature is greater than the second preset temperature, it can be determined that the server power supply circuit has an over-temperature fault, at this time, the server power supply circuit cannot work normally, or even if the server power supply circuit can work continuously, an abnormality or a fault can be generated gradually due to the over-current fault, or the abnormality is transmitted to the server, so that at this time, the voltage conversion module 100 needs to be turned off to turn off the server power supply current, further faults and damage related components caused by the first over-temperature are avoided, and meanwhile, the first over-temperature fault information is transmitted and output to remind the user terminal to timely check and adjust the server power supply circuit.
By the method, the first preset temperature is set to be a recovery value, the second preset temperature is set to be an over-temperature value, hysteresis control is formed, the first temperature is considered to be normal only when the first temperature is lower than the first preset temperature, and therefore the first temperature can be reliably reduced to the normal temperature value through adjustment of the first temperature, and reliability is improved.
In an alternative embodiment, when the current state information includes the second temperature of the voltage conversion module 100, the step S402 may include:
in the first case, when the second temperature is greater than the third preset temperature, it is determined that the operating state of the voltage conversion module 100 is an overtemperature alarm state, and the second overtemperature alarm information is sent. The third preset temperature may be the maximum temperature in the normal state, when the second temperature is greater than the third preset temperature, the voltage conversion module 100 is over-current, and an over-current abnormality is generated, but the server power circuit can still work at this time, so that only the second over-temperature alarm information is sent to remind the user terminal to timely check and adjust the voltage conversion module 100.
In the second case, when the second temperature is greater than the fourth preset temperature, determining that the working state of the voltage conversion module 100 is an overtemperature fault state, and sending second overtemperature fault information; the control voltage conversion module 100 is turned off. When the output temperature is greater than the fourth preset temperature, it may be determined that the voltage conversion module 100 has an over-temperature fault, and at this time, the voltage conversion module 100 cannot work normally, or even if the voltage conversion module can continue to work, an abnormality or a fault will gradually occur due to the over-current fault, or the abnormality is transferred to the server, so that at this time, the voltage conversion module 100 needs to be turned off to turn off the power supply current of the server, so that further faults and damage to related components caused by the second over-temperature are avoided, and at the same time, the second over-temperature fault information is sent and output to remind the user terminal to timely check and adjust the voltage conversion module 100.
By the method, the third preset temperature is set to be a recovery value, the fourth preset temperature is set to be an over-temperature value, hysteresis control is formed, the second temperature is considered to be normal only when the second temperature is lower than the third preset temperature, and therefore the second temperature can be reliably reduced to the normal temperature value through adjustment of the second temperature, and reliability is improved.
In an alternative implementation, fig. 5 is a flowchart of a specific embodiment of a control method of a server power circuit according to an embodiment of the present invention, as shown in fig. 5, when the server power circuit is started, the control module 300 samples the temperature of the voltage conversion module 100, that is, the second temperature, the temperature of the server power circuit, that is, the first temperature, the input voltage of the server power circuit, and the output current of the server power circuit, respectively, and determines the samples, and performs the steps described in step S402 above to regulate the server power circuit in time.
The method for controlling the power supply current of the server provided by the embodiment of the invention can control the power failure maintaining module 200, the hot plug module 500 and/or the voltage conversion module 100 to be turned on and/or turned off according to the current state information of the power supply circuit of the server, thereby timely processing the abnormality in the power supply circuit of the server and improving the reliability of the power supply circuit of the server.
In this embodiment, a method for controlling a server power supply circuit is provided, which may be used for the server power supply circuit described above, and fig. 6 is a flowchart of another method for controlling a server power supply circuit according to an embodiment of the present invention, as shown in fig. 6, where the flowchart includes the following steps:
step S601, current state information of the server power supply circuit is acquired.
Specifically, step S601 includes:
step S6011, acquiring state information of the server power circuit at intervals of a preset time.
In the embodiment of the present invention, each state information of the server power circuit is collected at intervals of a preset time, and specifically, the input voltage and the first temperature of the server power circuit, and the output current and the second temperature of the voltage conversion module 100 are collected respectively.
In an alternative embodiment, each state information, that is, the preset time corresponding to the input voltage, the first temperature, the output current and the second temperature, that is, the sampling time, may be different, and may be set according to the actual requirement.
Step S6012, performing mean processing on the obtained preset number of state information, and taking the state information after mean processing as current state information.
In the embodiment of the invention, average value processing is respectively carried out on the acquired preset quantity of state information, and the state information after the average value processing is used as the current state information.
In an alternative embodiment, a data set, that is, an input voltage set, a first temperature set, an output current set and a second temperature set, may be set for each state information, and then the collected information is put into the corresponding data set, and average processing is performed on a preset number of latest data in each data set at each sampling time, so as to obtain corresponding current state information.
In an alternative embodiment, corresponding sampling periods may be set for each state information, each state information is collected for a preset number of times in each sampling period, and average processing is performed on the obtained state information of the preset number of times to obtain current state information.
In step S602, the access state of the power-down maintaining module 200500100 is controlled based on the current state information. Please refer to step S502 in the embodiment shown in fig. 5 in detail, which is not described herein.
According to the server power supply current control method provided by the embodiment of the invention, the current state information is obtained through a method of sampling and averaging for multiple times, the problem of inaccurate data obtained through single sampling is avoided, and the reliability and accuracy of control of the server power supply circuit are improved.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims (19)

1. A server power circuit, the circuit comprising: a voltage conversion module (100), a power-down holding module (200), a control module (300) and a power-down holding switch (400);
the input end of the voltage conversion module (100) is connected with the power-down maintaining module (200); the voltage conversion module (100) is configured to convert an input voltage of the voltage conversion module (100) into a target voltage; the target voltage is used for supplying power to the server;
the power-down maintaining module (200) is used for maintaining the magnitude of the target voltage when the input voltage of the circuit is powered down; the power-down maintaining module (200) comprises an energy storage element (210), a power supply element (220) and a diversion switch (230);
a first end of the energy storage element (210) is connected with an input end of the circuit, and a second end of the energy storage element (210) is connected with an input end of the voltage conversion module (100); the energy storage element (210) is used for storing energy provided by an input voltage of the circuit and transmitting the energy to the power supply element (220);
A first end of the power supply element (220) is connected with an input end of the circuit, and a second end of the power supply element (220) is connected with an input end of the voltage conversion module (100); the power supply element (220) forms a voltage by releasing energy transferred by the energy storage element (210) to maintain a voltage input to the voltage conversion module (100) when an input voltage of the circuit is powered down, thereby maintaining a magnitude of the target voltage;
the flow guiding switch (230) is a transistor, and the flow guiding switch (230) is used for controlling the frequency and the duration of energy transmitted by the energy storage element (210) to the power supply element (220) so as to control the voltage provided by the power supply element (220); the first end of the flow guiding switch (230) is connected with the second end of the energy storage element (210), and the second end of the flow guiding switch (230) is connected with the first end of the power supply element (220); when the diversion switch (230) is turned on, the energy storage element (210) stores energy provided by the input voltage of the circuit; when the diversion switch (230) is turned off, the energy storage element (210) transmits energy to the power supply element (220), and the power supply element (220) releases the energy transmitted by the energy storage element (210) to form a voltage;
The control module (300) is respectively connected with the voltage conversion module (100) and the power failure maintaining module (200); the control module (300) is used for collecting input voltage of the input end of the circuit in the current state information of the circuit and controlling the access state of the power-down holding module (200) according to the input voltage of the input end of the circuit in the current state information so as to start the power-down holding module (200) when the input voltage of the circuit is powered down;
the first end of the power-down maintaining switch (400) is connected with the power-down maintaining module (200), the second end of the power-down maintaining switch (400) is connected with the voltage conversion module (100), and the third end of the power-down maintaining switch (400) is connected with the control module (300); the control module (300) controls the connection and/or disconnection of the power-down holding module (200) and the voltage conversion module (100) through a power-down holding switch (400) so as to control the connection state of the power-down holding module (200);
the current state information also comprises an output current of an output end of the voltage conversion module (100); the control module (300) is further configured to control an access state of the voltage conversion module (100) based on a magnitude relation between the output current and the first preset current and the second preset current; the first preset current is a recovery value, the second preset current is an overcurrent value, and the second preset current is larger than the first preset current.
2. The circuit of claim 1, wherein the power down hold switch (400) is a transistor;
the control module (300) controls the conduction of the transistor, and controls the communication between the power-down holding module (200) and the voltage conversion module (100) so as to control the starting of the power-down holding module (200);
or the control module (300) controls the turn-off of the transistor, and controls the disconnection of the power-down maintaining module (200) and the voltage conversion module (100) so as to control the power-down maintaining module (200) to be turned off.
3. The circuit of claim 1, further comprising a hot plug module (500), the hot plug module (500) being connected to the control module (300) and the control module (300), respectively;
the hot plug module (500) is used for inhibiting a current peak generated by an input current when the circuit is plugged in and out in a live mode;
the control module (300) is used for controlling the access state of the hot plug module (500).
4. The circuit of claim 1, wherein the control module (300) comprises a first controller (310) and a second controller (320); the first controller (310) and the second controller (320) are electrically isolated and are in communication connection;
The current state information further comprises a first temperature of an input of the circuit and a second temperature of an output of the voltage conversion module (100);
the first controller (310) is connected with an input end of the circuit, and the first controller (310) is used for acquiring the input voltage and the first temperature;
the second controller (320) is connected with the output end of the voltage conversion module (100), and the second controller (320) is used for collecting the output current and the second temperature.
5. The circuit according to claim 4, wherein the first controller (310) is connected to an input of the voltage conversion module (100);
the first controller (310) determines the working state of the circuit according to the input voltage, and controls the connection state of the power failure holding module (200), the hot plug module (500) and/or the voltage conversion module (100).
6. The circuit of claim 4, wherein the first controller (310) determines an operating state of the circuit based on the first temperature and controls an on state of the voltage conversion module (100);
The second controller (320) determines the operating state of the voltage conversion module (100) according to the output current and the second temperature, and controls the access state of the voltage conversion module (100).
7. A control method of a server power supply circuit, characterized by being applied to the server power supply circuit as claimed in any one of claims 1 to 6, the method comprising:
acquiring current state information of the server power supply circuit;
controlling the access state of the power-down holding module (200) based on the input voltage of the input end of the server power supply circuit in the current state information; and controlling the access state of the voltage conversion module (100) based on the magnitude relation between the output current of the output end of the voltage conversion module (100) in the current state information and the first preset current and the second preset current; the first preset current is a recovery value, the second preset current is an overcurrent value, and the second preset current is larger than the first preset current.
8. The method according to claim 7, wherein controlling the access state of the power-down holding module (200) based on the input voltage of the input terminal of the server power supply circuit in the current state information comprises:
When the input voltage is smaller than a first preset voltage, determining that the working state of the server power supply circuit is a power-down state, and sending input undervoltage alarm information;
and controlling the power-down maintaining module (200) to be communicated with the voltage conversion module (100) by controlling the power-down maintaining switch (400) to be turned on so as to turn on the power-down maintaining module (200).
9. The method of claim 8, wherein controlling the access state of the power down holding module (200) based on the input voltage of the input of the server power circuit in the current state information further comprises:
when the input voltage is greater than or equal to the first preset voltage, determining that the working state of the server power supply circuit is a normal state;
and controlling the power-down maintaining switch (400) to be turned off, and controlling the power-down maintaining module (200) to be disconnected with the voltage conversion module (100) so as to close the power-down maintaining module (200).
10. The method of claim 8, wherein controlling the access state of the power down holding module (200) based on the input voltage of the input of the server power circuit in the current state information further comprises:
When the input voltage is smaller than a second preset voltage, determining that the working state of the server power supply circuit is a complete power-down state, and sending input undervoltage fault information; the second preset voltage is smaller than the first preset voltage;
and controlling the power-down maintaining switch (400) to be turned off, and controlling the power-down maintaining module (200) to be disconnected with the voltage conversion module (100) so as to close the power-down maintaining module (200).
11. The method of claim 7, wherein the method further comprises:
based on the current state information, controlling the access state of the hot plug module (500) and/or the voltage conversion module (100).
12. The method of claim 11, wherein the current state information comprises an input voltage at an input of the server power circuit; the controlling the access state of the hot plug module (500) and/or the voltage conversion module (100) based on the current state information comprises:
when the input voltage is smaller than a third preset voltage, determining that the working state of the server power supply circuit is an under-voltage state, and sending input under-voltage fault information; the third preset voltage is smaller than the first preset voltage and larger than the second preset voltage;
And controlling the hot plug module (500) and the voltage conversion module (100) to be closed.
13. The method according to claim 7, wherein controlling the access state of the voltage conversion module (100) based on the magnitude relation between the output current of the output terminal of the voltage conversion module (100) and the first preset current and the second preset current in the current state information includes:
when the output current is larger than the first preset current, the working state of the voltage conversion module (100) is determined to be an overcurrent alarm state, and output overcurrent alarm information is sent.
14. The method according to claim 13, wherein controlling the access state of the voltage conversion module (100) based on the magnitude relation between the output current of the output terminal of the voltage conversion module (100) and the first preset current and the second preset current in the current state information further comprises:
when the output current is larger than the second preset current, determining that the working state of the voltage conversion module (100) is an overcurrent fault state, and sending the output overcurrent fault information;
the voltage conversion module (100) is controlled to be turned off.
15. The method of claim 11, wherein the current state information comprises a first temperature of the server power circuit; the controlling the access state of the hot plug module (500) and/or the voltage conversion module (100) based on the current state information comprises:
when the first temperature is larger than a first preset temperature, determining that the working state of the server power supply circuit is an over-temperature alarm state, and sending first over-temperature alarm information.
16. The method according to claim 15, wherein said controlling the access state of a hot plug module (500) and/or the voltage conversion module (100) based on the current state information further comprises:
when the first temperature is higher than a second preset temperature, determining that the working state of the server power supply circuit is an overtemperature fault state, and sending first overtemperature fault information; the second preset temperature is greater than the first preset temperature;
the voltage conversion module (100) is controlled to be turned off.
17. The method of claim 11, wherein the current state information comprises a second temperature of the voltage conversion module (100); the controlling the access state of the hot plug module (500) and/or the voltage conversion module (100) based on the current state information comprises:
And when the second temperature is greater than a third preset temperature, determining that the working state of the voltage conversion module (100) is an over-temperature alarm state, and sending second over-temperature alarm information.
18. The method according to claim 17, wherein said controlling the access state of a hot plug module (500) and/or the voltage conversion module (100) based on the current state information further comprises:
when the second temperature is larger than a fourth preset temperature, determining that the working state of the voltage conversion module (100) is an over-temperature fault state, and sending second over-temperature fault information; the fourth preset temperature is greater than the third preset temperature;
the voltage conversion module (100) is controlled to be turned off.
19. The method of claim 7, wherein obtaining current state information of the server power circuit comprises:
acquiring state information of the server power supply circuit every preset time;
and carrying out average processing on the obtained preset quantity of state information, and taking the state information after average processing as the current state information.
CN202311163226.9A 2023-09-11 2023-09-11 Server power supply circuit and control method thereof Active CN116909376B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114552762A (en) * 2022-02-22 2022-05-27 苏州浪潮智能科技有限公司 Method and system for controlling power-down maintenance time of server power supply
CN115825799A (en) * 2022-12-16 2023-03-21 苏州浪潮智能科技有限公司 Device and method for identifying abnormal power failure of server power supply
CN116243777A (en) * 2023-02-02 2023-06-09 苏州浪潮智能科技有限公司 Power failure maintaining device and server

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114552762A (en) * 2022-02-22 2022-05-27 苏州浪潮智能科技有限公司 Method and system for controlling power-down maintenance time of server power supply
CN115825799A (en) * 2022-12-16 2023-03-21 苏州浪潮智能科技有限公司 Device and method for identifying abnormal power failure of server power supply
CN116243777A (en) * 2023-02-02 2023-06-09 苏州浪潮智能科技有限公司 Power failure maintaining device and server

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