CN110244808A - Voltage adjusting method, device, equipment and storage medium - Google Patents
Voltage adjusting method, device, equipment and storage medium Download PDFInfo
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- CN110244808A CN110244808A CN201910594103.8A CN201910594103A CN110244808A CN 110244808 A CN110244808 A CN 110244808A CN 201910594103 A CN201910594103 A CN 201910594103A CN 110244808 A CN110244808 A CN 110244808A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
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Abstract
The application provides a kind of voltage adjusting method, device, equipment and storage medium, this method comprises: obtaining the load voltage values of each load；According to each load voltage values, load voltage median is determined；If the difference of the load voltage median and preset target voltage values is not within a preset range, adjust the output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting is within a preset range, the stability that server system works normally is improved.
Description
Technical field
This application involves field of computer technology more particularly to a kind of voltage adjusting method, device, equipment and storage to be situated between
Matter.
Background technique
With the continuous development of enterprise and being stepped up for portfolio, the quantity of enterprise servers also increasingly increases, therewith
And come, also increasingly increase severely to the consumption of electric energy.
It is that standardized module output voltage is fixed that server power supply, which is all made into, at present, such as intel CRPS series, CRPS: is
The abbreviation of Common Redundant Power Supply, is the power supply design specification that Intel is defined, but answers actual
In, for same power supply under different application scenarios, such as: different system layouts (walking wire length, short)；Different configurations
(configuration is high, low)；The power supply of load may be higher or relatively low, and long-term spread of voltage is unfavorable for the normal of server system
Work, such as will appear surge phenomenon or blue screen.
Summary of the invention
The application provides a kind of voltage adjusting method, device, equipment and storage medium, to solve prior art load power supply
The defects of unstable.
The application first aspect provides a kind of voltage adjusting method, comprising:
Obtain the load voltage values of each load；
According to each load voltage values, load voltage median is determined；
If the difference of the load voltage median and preset target voltage values within a preset range, does not adjust power supply
Output voltage, until the difference of load voltage median and the target voltage values after adjusting is within a preset range.
The application the second aspect provides a kind of voltage regulating device, comprising:
Module is obtained, for obtaining the load voltage values of each load；
Determining module, for determining load voltage median according to each load voltage values；
Adjustment module, if for the difference of the load voltage median and preset target voltage values not in preset range
It is interior, the output voltage of power supply is adjusted, until the difference of load voltage median and the target voltage values after adjusting is default
In range.
A kind of electronic equipment is provided in terms of the application third, comprising: at least one processor and memory；
The memory stores computer program；At least one described processor executes the computer of the memory storage
Program, the method to realize first aspect offer.
The 4th aspect of the application provides a kind of computer readable storage medium, stores in the computer readable storage medium
There is computer program, the computer program is performed the method for realizing that first aspect provides.
Voltage adjusting method, device, equipment and storage medium provided by the present application, by obtaining among each load voltage
Value, and is compared with target voltage values, adjusts the output voltage of power supply, until the load voltage median after adjusting with it is described
The difference of target voltage values within a preset range, improves the accuracy of electric power output voltage, while it is normal to improve server system
The stability of work.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this Shen
Some embodiments please for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram for the voltage adjusting method that one embodiment of the application provides；
Fig. 2 is the structural schematic diagram for the server power system that one embodiment of the application provides；
Fig. 3 is the flow diagram for the voltage adjusting method that the application another embodiment provides；
Fig. 4 is the structural schematic diagram for the voltage regulating device that one embodiment of the application provides；
Fig. 5 is the structural schematic diagram for the electronic equipment that one embodiment of the application provides.
Through the above attached drawings, it has been shown that the specific embodiment of the application will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of this disclosure concept by any means with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
Noun involved in the application is explained first:
BMC:Baseboard Management Controller, baseboard management controller, the function of support include: this
Ground and remote diagnosis, console support, configuration management, hardware management and troubleshooting, such as turn for rotation speed of the fan monitoring
Speed meter input is inputted for the pulse width regulator output of rotation speed of the fan control for the button of front panel button and switch,
A serial port etc. for multiplexing is carried out with server console port.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of following embodiment, the meaning of " plurality " is two
More than a, unless otherwise specifically defined.
These specific embodiments can be combined with each other below, may be at certain for the same or similar concept or process
It is repeated no more in a little embodiments.Below in conjunction with attached drawing, the embodiment of the present invention is described.
One embodiment of the application provides a kind of voltage adjusting method, for adjusting the output voltage of power supply.The present embodiment
Executing subject is voltage regulating device, be can be set on the electronic equipment for supporting I2C interface (PMBus) pressure regulation.
Fig. 1 is the flow diagram for the voltage adjusting method that one embodiment of the application provides, as shown in Figure 1, this method packet
It includes:
S101 obtains the load voltage values of each load；
S102 determines load voltage median according to each load voltage values；
S103, if the difference of the load voltage median and preset target voltage values not within a preset range, is adjusted
The output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting is within a preset range.
Specifically, Fig. 2 is the structural schematic diagram for the server power system that one embodiment of the application provides, as shown in Fig. 2,
BMC passes through I2C interface or sensor get the load voltage values of each load, realize multi-point sampling, and according to each load
Voltage value determines load voltage median, if the difference of the load voltage median and preset target voltage values is not pre-
If in range, adjusting the output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting
Within a preset range.
Illustratively, preset target voltage values are 12V, and voltage preset range is +/- 0.1V；
It has been more than that voltage presets model if the difference of the load voltage median and goal-selling voltage value that obtain is 0.3V
0.1V is enclosed, the output voltage of power supply is adjusted, until the difference of load voltage median and the target voltage values after adjusting exists
In preset range, each load voltage values can be acquired in real time, and balanced each load voltage improves the accuracy of output voltage, can root
Electric power output voltage is adjusted according to actual demand.
Voltage adjusting method provided by the present application is carried out by obtaining each load voltage median, and with target voltage values
Compare, adjust the output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range, improving the accuracy of electric power output voltage, while improving the stability of server system normal work.
The another embodiment of the application does further supplementary explanation to method provided by the above embodiment.
It is on the basis of the above embodiments, optionally, described according to each load voltage as a kind of enforceable mode
Value, determines load voltage median, comprising:
Using the average value of each load voltage values as the load voltage median.
Specifically, the load voltage values of each load are added, obtain the sum of load voltage values；
By the sum of described load voltage values divided by the number of load voltage values, the load voltage median is obtained.
Specifically: the method for computational load voltage median:
V=(V1+V2+…+VN)/N；
Wherein, V is load voltage median；
V1,V2,…VNFor the load voltage values of each load；
N is the number of load.
It is on the basis of the above embodiments, described according to each load voltage values as another enforceable mode, it determines
Load voltage median, comprising:
According to each load voltage values and the corresponding default weighted value of each load voltage values, the load electricity is determined
Press median.
Specifically, weight is set for the load voltage values of each load in advance, and the sum of weight is 1；
V=a1V1+a2V2+…+anVN；
Wherein: V is load voltage median；
V1,V2,…VNFor the load voltage values of each load；
a1+a2+…+an=1；a1,a2,…,anIt is the weighted value defined according to the power reguirements of equipment under different scenes.
It should be noted that the mode of computational load voltage median includes above-mentioned method but be not limited to that above-mentioned
Mode.
Optionally, if the difference of the load voltage median and preset target voltage values is not in preset range
It is interior, the output voltage of power supply is adjusted, until the difference of load voltage median and the target voltage values after adjusting is default
In range, comprising:
If the load voltage median is greater than the preset target voltage values, with preset step-length and preset week
Phase turns down the output voltage of the power supply, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range.
If the load voltage median is less than the preset target voltage values, with the preset step-length and preset
Period the output voltage of the power supply is turned up, until the difference of load voltage median and the target voltage values after adjusting
Within a preset range.
On the basis of the above embodiments, after getting the load voltage median of each load, with preset target electricity
Pressure value is compared, if the load voltage median is greater than the preset target voltage values, and difference is greater than preset electricity
Range is pressed, then turns down the output voltage of power supply with preset step-length and preset period, and then reacquires the negative of each load
Carry voltage value, computational load voltage median, then be compared with preset target voltage values, if load voltage median and pre-
If target voltage values difference also not within a preset range, then continue with the defeated of preset step-length and preset periodic adjustment power supply
Voltage out, until the difference of load voltage median and the target voltage values after adjusting is within a preset range.
If load voltage median is less than preset target voltage values, electricity is turned up with preset step-length and preset period
The output voltage in source, and then reacquire the load voltage values of each load, computational load voltage median, then with preset target
Voltage value is compared, if the difference of load voltage median and preset target voltage values is also not within a preset range, after
The continuous output voltage with preset step-length and preset periodic adjustment power supply, until load voltage median and the mesh after adjusting
Mark the difference of voltage value within a preset range.
Illustratively, table 1 is the voltage value contrast table for adjusting front and back, if preset target voltage values are 12V, preset range
For +/- 0.1V, under different application scenarios, the load voltage of each load got is different, and according to above scheme tune
The voltage value contrast table of whole front and back is as shown in table 1.
Wherein, preset step-length, preset target voltage values, preset range and preset period can be according to practical need
It is set, is not specifically limited in this application.
Optionally, the electric power output voltage after electric power output voltage or height-regulating after turning down is in ceiling voltage limit value and minimum
Between voltage limits.
It should be noted that each enforceable mode can individually be implemented in the present embodiment, it can also be in the feelings not conflicted
It is combined in any combination under condition and implements the application without limitation.
Table 1
From above table, wherein the corresponding data of 2a and the corresponding data of 3a are data adjusted, and each point is all
As far as possible close to target value 12V.
Voltage adjusting method provided by the present application is carried out by obtaining each load voltage median, and with target voltage values
Compare, adjust the output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range, improving the accuracy of electric power output voltage, while improving the stability of server system normal work.
Fig. 3 is the flow diagram for the voltage adjusting method that the application another embodiment provides, as shown in figure 3, specifically:
1, calculate median: BMC baseboard management controller passes through I2C interface or sensor obtain in practical application, each
The voltage value for loading point, calculates load voltage median.
2, by practical application median compared with target median 12V.
The median that step 1 calculates is compared with target median, judges whether to be turned up or turn down voltage；
3. adjustment: guarantee all load point voltages all in the case where high and low limit value, height-regulating, low output voltage value；It adjusts
Into for +/- 0.05V (customized), the period 10 seconds (customized), be 12V+/- 0.1V until meeting practical application median for synchronizing,
Stop adjustment.
According to adjustment stepping, it is turned up/is turned down electric power output voltage value, step 1 is then repeated and calculates median~step
3, until practical application median is 12V+/- 0.1V, stopping adjustment.
Voltage adjusting method provided by the present application, applicable application conditions are wider, in systems using more stable.
Another embodiment of the application provides a kind of voltage regulating device, for executing method provided by the above embodiment.
Fig. 4 is the structural schematic diagram for the voltage regulating device that one embodiment of the application provides, as shown in figure 4, the voltage tune
Regulating device includes obtaining module 10, determining module 20 and adjustment module 30；
Wherein, the load voltage values that module 10 is used to obtain each load are obtained；
Determining module 20 is used to determine load voltage median according to each load voltage values；
If adjustment module 30 is for the difference of the load voltage median and preset target voltage values not in default model
In enclosing, the output voltage of power supply is adjusted, until the difference of the load voltage median after adjusting and the target voltage values is pre-
If in range.
Device in this present embodiment is closed, wherein modules execute the concrete mode of operation in related this method
It is described in detail in embodiment, no detailed explanation will be given here.
Voltage regulating device provided by the present application is carried out by obtaining each load voltage median, and with target voltage values
Compare, adjust the output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range, improving the accuracy of electric power output voltage, while improving the stability of server system normal work.The application is again
One embodiment does further supplementary explanation to device provided by the above embodiment.
As a kind of enforceable mode, on the basis of the above embodiments, optionally, the determining module is specifically used
In:
Using the average value of each load voltage values as the load voltage median.
Specifically, the load voltage values of each load are added, obtain the sum of load voltage values；
By the sum of described load voltage values divided by the number of load voltage values, the load voltage median is obtained.
Specifically: the method for computational load voltage median:
V=(V1+V2+…+VN)/N；
Wherein, V is load voltage median；
V1,V2,…VNFor the load voltage values of each load；
N is the number of load.
As another enforceable mode, on the basis of the above embodiments, optionally, the determining module is also used
In:
According to each load voltage values and the corresponding default weighted value of each load voltage values, the load electricity is determined
Press median.
Specifically, weight is set for the load voltage values of each load in advance, and the sum of weight is 1；
V=a1V1+a2V2+…+anVN；
Wherein: V is load voltage median；
V1,V2,…VNFor the load voltage values of each load；
a1+a2+…+an=1；a1,a2,…,anIt is the weighted value defined according to the power reguirements of equipment under different scenes.
It should be noted that the mode of computational load voltage median includes above-mentioned method but be not limited to that above-mentioned
Mode.
Optionally, the adjustment module is also used to:
If the load voltage median is greater than the preset target voltage values, with preset step-length and preset week
Phase turns down the output voltage of the power supply, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range.
If the load voltage median is less than the preset target voltage values, with the preset step-length and preset
Period the output voltage of the power supply is turned up, until the difference of load voltage median and the target voltage values after adjusting
Within a preset range.
On the basis of the above embodiments, after getting the load voltage median of each load, with preset target electricity
Pressure value is compared, if the load voltage median is greater than the preset target voltage values, and difference is greater than preset electricity
Range is pressed, then turns down the output voltage of power supply with preset step-length and preset period, and then reacquires the negative of each load
Carry voltage value, computational load voltage median, then be compared with preset target voltage values, if load voltage median and pre-
If target voltage values difference also not within a preset range, then continue with the defeated of preset step-length and preset periodic adjustment power supply
Voltage out, until the difference of load voltage median and the target voltage values after adjusting is within a preset range.
If load voltage median is less than preset target voltage values, electricity is turned up with preset step-length and preset period
The output voltage in source, and then reacquire the load voltage values of each load, computational load voltage median, then with preset target
Voltage value is compared, if the difference of load voltage median and preset target voltage values is also not within a preset range, after
The continuous output voltage with preset step-length and preset periodic adjustment power supply, until load voltage median and the mesh after adjusting
Mark the difference of voltage value within a preset range.
The electric power output voltage after electric power output voltage or height-regulating after turning down is limited in ceiling voltage limit value and minimum voltage
Between value.
Device in this present embodiment is closed, wherein modules execute the concrete mode of operation in related this method
It is described in detail in embodiment, no detailed explanation will be given here.
It should be noted that each enforceable mode can individually be implemented in the present embodiment, it can also be in the feelings not conflicted
It is combined in any combination under condition and implements the application without limitation.
Voltage regulating device provided by the present application is carried out by obtaining each load voltage median, and with target voltage values
Compare, adjust the output voltage of power supply, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range, improving the accuracy of electric power output voltage, while improving the stability of server system normal work.
The application another embodiment provides a kind of electronic equipment, for executing method provided by the above embodiment.
Fig. 5 is the structural schematic diagram for the electronic equipment that one embodiment of the application provides, as shown in figure 5,
The electronic equipment includes: at least one processor 51 and memory 52；
The memory stores computer program；At least one described processor executes the computer of the memory storage
Program, to realize method provided by the above embodiment.
Electronic equipment provided by the present application by obtaining each load voltage median, and is compared with target voltage values,
The output voltage of power supply is adjusted, until the difference of load voltage median and the target voltage values after adjusting is in preset range
It is interior, the accuracy of electric power output voltage is improved, while improving the stability of server system normal work.
The another embodiment of the application provides a kind of computer readable storage medium, stores in the computer readable storage medium
There is computer program, the computer program is performed the method for realizing that any of the above-described embodiment provides.
According to the computer readable storage medium of the present embodiment, by obtaining each load voltage median, and it is electric with target
Pressure value is compared, and adjusts the output voltage of power supply, until the load voltage median and the target voltage values after adjusting
Difference within a preset range, improves the accuracy of electric power output voltage, while improving the stability of server system normal work.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or unit
Letter connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the application
The part steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. it is various
It can store the medium of program code.
Those skilled in the art can be understood that, for convenience and simplicity of description, only with above-mentioned each functional module
Division progress for example, in practical application, can according to need and above-mentioned function distribution is complete by different functional modules
At the internal structure of device being divided into different functional modules, to complete all or part of the functions described above.On
The specific work process for stating the device of description, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent
Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of voltage adjusting method characterized by comprising
Obtain the load voltage values of each load；
According to each load voltage values, load voltage median is determined；
If the difference of the load voltage median and preset target voltage values within a preset range, does not adjust the output of power supply
Voltage, until the difference of load voltage median and the target voltage values after adjusting is within a preset range.
2. determining in load voltage the method according to claim 1, wherein described according to each load voltage values
Between be worth, comprising:
Using the average value of each load voltage values as the load voltage median；Alternatively,
According to each load voltage values and the corresponding default weighted value of each load voltage values, determine in the load voltage
Between be worth.
3. if the method according to claim 1, wherein the load voltage median and preset target
The difference of voltage value within a preset range, does not adjust the output voltage of power supply, until load voltage median and institute after adjusting
State the difference of target voltage values within a preset range, comprising:
If the load voltage median is greater than the preset target voltage values, with preset step-length and preset period tune
The output voltage of the low power supply, until the difference of load voltage median and the target voltage values after adjusting is in default model
In enclosing；
If the load voltage median is less than the preset target voltage values, with the preset step-length and preset week
The output voltage of the power supply is turned up in phase, until the difference of load voltage median and the target voltage values after adjusting is pre-
If in range.
4. according to the method described in claim 3, it is characterized in that, the power supply after electric power output voltage or height-regulating after turning down is defeated
Voltage is between ceiling voltage limit value and minimum voltage limit value out.
5. a kind of voltage regulating device characterized by comprising
Module is obtained, for obtaining the load voltage values of each load；
Determining module, for determining load voltage median according to each load voltage values；
Adjustment module, if difference for the load voltage median and preset target voltage values is not within a preset range,
The output voltage of power supply is adjusted, until the difference of load voltage median and the target voltage values after adjusting is in preset range
It is interior.
6. device according to claim 5, which is characterized in that the determining module, comprising:
Using the average value of each load voltage values as the load voltage median.
7. device according to claim 5, which is characterized in that the determining module, comprising:
According to each load voltage values and the corresponding default weighted value of each load voltage values, determine in the load voltage
Between be worth.
8. device according to claim 5, which is characterized in that the adjustment module, comprising:
If the load voltage median is greater than the preset target voltage values, the power supply is turned down with preset step-length
Output voltage, until the difference of load voltage median and the target voltage values after adjusting is within a preset range；
If the load voltage median is less than the preset target voltage values, the electricity is turned up with the preset step-length
The output voltage in source, until the difference of load voltage median and the target voltage values after adjusting is within a preset range.
9. a kind of electronic equipment characterized by comprising at least one processor and memory；
The memory stores computer program；At least one described processor executes the computer journey of the memory storage
Sequence, to realize method of any of claims 1-4.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer journey in the computer readable storage medium
Sequence, the computer program, which is performed, realizes method of any of claims 1-4.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111641957A (en) * | 2020-06-09 | 2020-09-08 | 展讯通信（上海）有限公司 | APT voltage configuration method and system, electronic device and computer readable medium |
| CN113741669A (en) * | 2021-07-30 | 2021-12-03 | 苏州浪潮智能科技有限公司 | Server power supply matching method and device and related components |
| CN113965051A (en) * | 2021-09-30 | 2022-01-21 | 苏州浪潮智能科技有限公司 | Method and device for reducing voltage fluctuation influence and storage medium |
| CN113961029A (en) * | 2021-12-23 | 2022-01-21 | 苏州浪潮智能科技有限公司 | Method, device and medium for improving output voltage precision |
| CN114527859A (en) * | 2022-02-21 | 2022-05-24 | 苏州浪潮智能科技有限公司 | Power supply voltage adjusting method, system, storage medium and equipment |
| WO2023185348A1 (en) * | 2022-03-31 | 2023-10-05 | 华为技术有限公司 | Voltage regulation method and apparatus |
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