CN110515447A - The power supply system and method for storage medium - Google Patents
The power supply system and method for storage medium Download PDFInfo
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- CN110515447A CN110515447A CN201910736144.6A CN201910736144A CN110515447A CN 110515447 A CN110515447 A CN 110515447A CN 201910736144 A CN201910736144 A CN 201910736144A CN 110515447 A CN110515447 A CN 110515447A
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- 239000003990 capacitor Substances 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 description 16
- 230000010355 oscillation Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012938 design process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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Classifications
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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
- G06F1/305—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations in the event of power-supply fluctuations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
Abstract
This application provides a kind of power supply system of storage medium and method, which exports supply voltage by power supply module, to storage medium；Power supply module is fed back to the supply voltage that storage medium exports by feed circuit, obtains feedback voltage；Feedback voltage is compensated by the compensation factor in compensation circuit, to obtain the supply voltage within the scope of safe voltage thresholds.The system feeds back supply voltage by feed circuit, obtain feedback voltage, the feedback dynamics of feedback voltage is adjusted by the compensation factor in compensation circuit, and then controls supply voltage within the scope of safe voltage thresholds, and safe supply voltage is provided for storage medium.
Description
Technical field
This application involves power supply system technical fields, more particularly to the power supply system and method for a kind of storage medium.
Background technique
Storage medium is such as mechanical hard disk, solid state hard disk for storing data.Wherein, this every kind storage medium
The course of work is dependent on cooperating between the relevant devices such as control chip, power supply module, memory.In order to ensure
The normal work of storage medium needs to provide the support of stabilized power supply for the storage medium.
It is currently, there are a kind of power supply design method of storage medium, which exports power supply module
Voltage to storage medium carries out dynamic regulation.Specifically, storage medium, when being written and read, load can change therewith,
Power supply module needs to adjust the voltage of output to storage medium by compensated line thus, is drawn with reducing because loading variation
The oscillation risen, to guarantee that voltage fluctuates within the scope of secure threshold.And it is carried out by voltage of the feedback line to output
Real-time monitoring triggers compensated line when there are oscillation and is adjusted to realize the dynamic adjustment of voltage.
But storage medium, when carrying out overall write operation, load variation is excessive, power supply module passes through compensated line
The voltage of adjustment exceeds safe voltage thresholds range, and that triggers storage medium restarts protection mechanism, to cause in storage medium
The loss of data of storage.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of power supply system of storage medium, to solve because voltage is beyond peace
Full threshold range triggers the problem of restarting protection mechanism, cause the loss of data stored in storage medium of storage medium.Separately
Outside, the embodiment of the present application also provides a kind of method of supplying power to of storage medium, to guarantee above system being applied in practice
It was found that.
To achieve the above object, the embodiment of the present application provides the following technical solutions:
In a first aspect, this application provides a kind of power supply systems of storage medium, comprising:
Power supply module, for exporting supply voltage to storage medium；
Feed circuit, for obtaining the supply voltage of the power supply module output, according to the power supply power supply
The supply voltage of module output, generates feedback voltage；
Compensation circuit, for receiving the feedback voltage, and by the compensation factor in the compensation circuit to described anti-
Feedthrough voltage compensates, and the supply voltage exported based on compensated feedback voltage to the power supply module is adjusted,
So that supply voltage adjusted is within the scope of safe voltage thresholds.
Second aspect, this application provides a kind of method of supplying power to of storage medium, applied to described in above-mentioned first aspect
The power supply system of storage medium, which comprises
Obtain the supply voltage exported to storage medium；
According to the supply voltage, feedback voltage is generated；
The feedback voltage is compensated by compensation factor, based on compensated feedback voltage to the supply voltage
It is adjusted, so that the supply voltage after adjusting is within the scope of safe voltage thresholds.
As shown from the above technical solution, this application provides a kind of power supply system of storage medium, which passes through power supply
Power supply module exports supply voltage to storage medium；The power supply module is exported to storage medium by feed circuit
Supply voltage fed back, obtain feedback voltage；Feedback voltage is compensated by the compensation factor in compensation circuit, with
Obtain the supply voltage within the scope of safe voltage thresholds.The system feeds back supply voltage by feed circuit, obtains
Feedback voltage adjusts the feedback dynamics of feedback voltage by the compensation factor in compensation circuit, and then controls supply voltage and exist
Within the scope of safe voltage thresholds, safe supply voltage is provided for storage medium.
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 only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 shows the structural block diagram of the power supply system of storage medium provided by the present application；
Fig. 2 shows the attachment structure schematic diagrams of comparator in feed circuit provided by the present application；
Fig. 3 shows the structural schematic diagram of compensation circuit provided by the present application；
Fig. 4 shows the waveform diagram of the oscillation of the prior art；
Fig. 5 shows the waveform diagram of the oscillation of the prior art；
Fig. 6 shows the waveform diagram of oscillation provided by the present application；
Fig. 7 shows the structural block diagram of the power supply system of another storage medium provided by the present application；
Fig. 8 shows the flow chart of the method for supplying power to of storage medium provided by the present application；
Fig. 9 shows the flow chart of the method for supplying power to of another storage medium provided by the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
In this application, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the process, method, article or equipment for including a series of elements not only includes those elements, but also including not having
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited in the case where more limiting by sentence "including a ...", it is not excluded that in the mistake including the element
There is also other identical elements in journey, method, article or equipment.
There are many storage mediums in the market, such as mechanical hard disk, solid state hard disk.Wherein, spy of the solid state hard disk because of itself
Point, such as the rate of data transmission, very fast feature, is liked by most people.With solid state hard disk for example, to guarantee that solid-state is hard
Disk can be stably carried out various working conditions, need to be arranged inside the solid state hard disk power supply module and state control
Module.Wherein, power supply module is used to provide supply voltage for solid state hard disk, and status control module is for controlling solid state hard disk
Working condition, such as reading and writing, full-time course and write state entirely.
It is currently, there are a kind of power supply system of solid state hard disk, which is exported by power supply module to solid state hard disk
Supply voltage.When the working condition of solid state hard disk changes, the load of solid state hard disk also changes therewith, so as to cause
The oscillation of supply voltage.The oscillation may cause supply voltage beyond safe voltage thresholds range now.To make
Supply voltage shakes within the scope of safe voltage thresholds, needs to be adjusted the supply voltage, specifically: pass through feed circuit
Supply voltage is fed back, the dynamics of feedback is adjusted to the compensation factor by compensation circuit, thus to supply voltage into
Mobile state adjustment.
But above-mentioned adjusting method existing defects.When solid state hard disk is full write state, through feed circuit and compensation electricity
The oscillation of supply voltage after the adjusting of road can exceed safe voltage thresholds range.The reason is that compensation in compensation circuit because
Compensation inaccuracy of the son to feedback voltage.To cause supply voltage beyond safe voltage thresholds range, so that solid state hard disk
Protection mechanism is restarted in starting, is restarted solid state hard disk, is caused the loss of data being stored in solid state hard disk.
For this purpose, this application provides a kind of power supply systems of storage medium.Referring to Fig. 1, which includes: power supply power supply mould
Block 101, feed circuit 102 and compensation circuit 103.Wherein:
Power supply module 101, for exporting supply voltage to storage medium.
It should be noted that power supply module is internally provided with voltage conversion device (such as potential device), which is supplied
What electric module input connect is the voltage of 12V, by the 12V voltage by the voltage conversion device, obtains the power supply of storage medium
Voltage, such as 2.4V, 3.3V, 1.85V.Thus the voltage obtained after voltage conversion device is converted is defeated as power supply module
The supply voltage that outlet is exported, and the power supply access interface of the output end and storage medium connects.
For any storage medium, the supply voltage of storage medium is provided with safe voltage thresholds range, specific
Value are as follows: 1.71V-1.89V, safe voltage thresholds value range are arranged according to the requirement of power specifications, can also be referred to as in the industry
For Device operating voltage section.To guarantee the voltage value of power supply module output as far as possible in safe voltage thresholds range
It is interior, it needs the voltage exported to power supply module to be adjusted, adjusts process by feed circuit 102 and compensation circuit 103
It executes.
Feed circuit 102, for obtaining the supply voltage of power supply module output, according to power supply module output
Supply voltage generates feedback voltage.
It is understood that the feed circuit 102 includes comparator and other related devices, referring to Fig. 2, comparator
First pin is connect with the output end of supply voltage module；The second pin of comparator is connect with reference voltage, and third pin is
Export the output pin of feedback voltage.
Specifically, the first pin of comparator is the supply voltage V for acquiring the output of supply voltage module0；Comparator
Second pin be for acquiring reference voltage VT.By comparator by supply voltage V0With reference voltage VTAfter being compared, obtain
To feedback voltage, using the feedback voltage as the output of feed circuit, i.e. feedback voltage is exported by third pin.
Compensation circuit 103 carries out feedback voltage for receiving feedback voltage, and by the compensation factor in compensation circuit
Compensation, the supply voltage exported based on compensated feedback voltage to power supply module is adjusted, so that confession adjusted
Piezoelectric voltage is within the scope of safe voltage thresholds.
In the present embodiment, a kind of alternative construction of compensation circuit is as shown in Figure 3, comprising: protective resistance, first capacitor with
And second capacitor.Wherein the first end ground connection of protective resistance, the second end of protective resistance are connected with the second end of the second capacitor；It protects
The resistance value of resistance is protected within the scope of preset resistive value；The first end of second capacitor is connected with the first end of first capacitor, the second capacitor
First end and first capacitor first end access pin of the tie point COMP as compensation circuit, access pin is for receiving
Feedback voltage；The second end of first capacitor is grounded.
Compensation factor in compensation circuit is determined jointly by protective resistance, first capacitor and the second capacitor in compensation circuit
Fixed.Wherein, protective resistance and first capacitor are an important factor for influencing compensation factor, by adjusting the resistance value of protective resistance
And the capacitance of first capacitor is adjusted to adjust the compensation factor of compensation circuit, wherein protective resistance is main regulating object,
Change the compensation factor of compensation circuit with the resistance value by adjusting protective resistance.
It should be noted that the resistance value of protective resistance be from preset resistive value range (such as: preset resistive value range are as follows: 3.01K
Ω -5K Ω, can change according to practical application) in choose.In the design process of compensation circuit, the guarantor of various resistance values is obtained
Influence of the compensation factor to feedback voltage corresponding to resistance is protected, so that it is determined that preset resistive value range.And meet preset resistive value model
Compensation factor corresponding to the protective resistance enclosed enables to compensated feedback voltage, the supply voltage after feedback voltage,
It can stablize within the scope of safe voltage thresholds.
It is corresponding, the capacitance of first capacitor be from predetermined capacitance range (such as: predetermined capacitance range are as follows: 1pf-
100pf can change according to practical application) in choose.In the design process of compensation circuit, the of various capacitances is obtained
Influence of the compensation factor corresponding to one capacitor to feedback voltage, so that it is determined that predetermined capacitance range.And belong to the default electricity
Capacitance within the scope of capacitance enables to compensation factor that can more preferably compensate to feedback voltage.
Specifically, it as described above, compensation circuit receives feedback voltage, and after feedback voltage is compensated, will mend
Feedback voltage after repaying acts on supply voltage, so as to adjust the output of supply voltage.For example, feedback voltage is -0.03V, warp
After feedback compensation circuit compensates feedback voltage, the feedback voltage of -0.046V is obtained, it is assumed that supply voltage 1.82,
Supply voltage after feed circuit and compensation circuit adjustment is 1.774V.The confession adjusted through feed circuit and compensation circuit
Piezoelectric voltage can shake within the scope of safe voltage thresholds.
As shown from the above technical solution, this application provides a kind of power supply system of storage medium, which passes through power supply
Power supply module exports supply voltage to storage medium；The power supply module is exported to storage medium by feed circuit
Supply voltage fed back, obtain feedback voltage；Feedback voltage is compensated by the compensation factor in compensation circuit, with
Obtain the supply voltage within the scope of safe voltage thresholds.The system feeds back supply voltage by feed circuit, obtains
Feedback voltage adjusts the feedback dynamics of feedback voltage by the compensation factor in compensation circuit, and then controls supply voltage and exist
Within the scope of safe voltage thresholds, safe supply voltage is provided for storage medium.
For convenience of the modules for understanding above-described embodiment, this application provides the realities of the power supply system of above-mentioned storage medium
Border application process.
Assuming that V1-V2 is voltage threshold range, wherein V1=1.71V, V2=1.89V
In the prior art, power supply module provides supply voltage for storage medium, when the working condition of storage medium
When into full write state, the oscillation that will lead to supply voltage is widely varied, or even exceeds safe voltage thresholds range.Such as
The waveform diagram of oscillation shown in Fig. 4, the signified part of arrow are oscillations beyond safe voltage thresholds range
The voltage value of part, the part is 1.992V, greater than the maximum value 1.89V of safe voltage thresholds.The waveform as shown in oscillograph
Schematic diagram can be seen that even if the supply voltage within the scope of safe voltage thresholds there is also the oscillation of varying strength,
Reason can refer to Fig. 5, and shown in fig. 5 is oscillation present in the prior art.
For this purpose, this application provides the power supply systems of storage medium.Referring to Fig. 1, which includes power supply module, anti-
Current feed circuit and compensation circuit.
The concrete application process of above-described embodiment for convenience of description, it is assumed that V1-V2 is safe voltage thresholds range, wherein V1
=1.71V, V2=1.89V, the supply voltage of power supply module output are 1.85.When storage medium enters full write state,
The load of storage medium increases, and corresponding supply voltage can be stretched, and may exceed safe voltage thresholds range.For this purpose,
Supply voltage is adjusted, feed circuit is introduced, the feed circuit is in order to realize: when supply voltage is too low, improving power supply electricity
Pressure；The demand that supply voltage is reduced when supply voltage is excessively high, needs to introduce negative-feedback in a feedback circuit.If the dynamics of feedback is smaller
Or feedback dynamics is larger, also results in supply voltage and is unsatisfactory for safe voltage thresholds range.For this purpose, feed circuit is generated
Feedback voltage introduces compensation circuit, and after compensated circuit compensation, the supply voltage exported is more steady, as shown in FIG. 6
Waveform diagram reduces oscillation, can also be controlled by compensation circuit feedback dynamics.
Most of storage medium is designed with protection mechanism, to prevent the transmission of contingency, as solid state hard disk is provided with
Standby electric protection mechanism.Its protection mechanism principle be all it is much the same, i.e., by detection storage medium supply voltage whether meet
The safe operation of storage medium.And then corresponding protection mechanism is set.
In one example, the power supply system of storage medium.Referring to Fig. 7, the system in addition to include 101-103 module it
It outside, can also include: voltage detection module 104 and status control module 105.
Voltage detection module 104, for executing voltage detecting step, voltage detecting step is specific as follows:
Obtain the supply voltage of power supply module output；Judge supply voltage whether within the scope of safe voltage thresholds；
If supply voltage within the scope of safe voltage thresholds, generates the first level signal；If supply voltage is not in safe voltage thresholds
In range, then second electrical level signal is generated.
It should be noted that one of the first level signal and second electrical level signal can be high level signal, it is another
A is low level signal, and such as the first level signal is high level signal；Second electrical level signal is low level signal.
Specifically, the supply voltage of power supply module output is acquired by feedback line, and by supply voltage and is pacified
Full voltage threshold range compares, if supply voltage within the scope of safe voltage thresholds, generates high level signal, and exports
To status control module；If supply voltage not within the scope of safe voltage thresholds, generates low level signal, and exports to state
Control module.
Status control module 105, is used for: when receiving the first level signal, control storage medium executes the first operation,
And when receiving second electrical level signal, control storage medium executes the second operation, and the first operation is different with the second operation.
It should be noted that status control module is to control the module of the working condition of storage medium.Such as: state control
The working condition into protection mechanism of module control storage medium.
Specifically, when status control module receives high level signal, indicate what power supply module was exported at this time
Supply voltage is within the scope of safe voltage thresholds, and in such cases, status control module can control storage medium and execute the first behaviour
Make；For the generation for preventing contingency, need to be set as the second operation of storage medium setting.Specifically, working as status control module
It when receiving low level signal, indicates at this time, the supply voltage that power supply module is exported is not in safe voltage thresholds range
Interior, in such cases, status control module can control storage medium and execute the second operation.
Wherein: the first operation is to maintain the current working condition of storage medium；Second operation is start-up study waiting, and
The level signal of voltage detection module output is judged after delay waiting terminates；If level signal is the first level signal,
Maintain the current working condition of storage medium；If level signal is second electrical level signal, start standby electric protection mechanism.
Specifically, when status control module receives high level signal, instruction storage medium maintains current work shape
State；When status control module receives low level signal, start-up study is waited, such as: wait 15 clock signals.It is being delayed
Wait end and then the secondary received level signal state of detection；If the level signal state detected again is high level signal,
Then indicate that the low level signal before delay waits is, without carrying out other steps, to maintain currently stored caused by emergency event
The working condition of medium；If detection level signal state is low level signal state again, then it represents that supply voltage occurs
Failure, in such cases, status control module will indicate that storage medium starts standby electric protection mechanism, to prevent in storage medium
Loss of data.
Present invention also provides a kind of method of supplying power to of storage medium.Referring to Fig. 8, the method comprising the steps of S801-S803.
S801: the supply voltage exported to storage medium is obtained.
S802: according to supply voltage, feedback voltage is generated.
S803: compensating feedback voltage by compensation factor, based on compensated feedback voltage to supply voltage into
Row is adjusted, so that the supply voltage after adjusting is within the scope of safe voltage thresholds.
As shown from the above technical solution, this application provides a kind of method of supplying power to of storage medium, this method passes through power supply
Power supply module exports supply voltage to storage medium；The power supply module is exported to storage medium by feed circuit
Supply voltage fed back, obtain feedback voltage；Feedback voltage is compensated by the compensation factor in compensation circuit, is obtained
To the supply voltage within the scope of safe voltage thresholds.This method feeds back supply voltage by feed circuit, obtains anti-
Feedthrough voltage adjusts the feedback dynamics of feedback voltage by the compensation factor in compensation circuit, and then controls supply voltage and pacifying
In full voltage threshold range, safe supply voltage is provided for storage medium.
In one example, referring to Fig. 9, the method for supplying power to of storage medium other than including above-mentioned steps S801-S803,
It further include step S804-S807.
S804: supply voltage is obtained.
S805: judge supply voltage whether within the scope of safe voltage thresholds.
S806: if supply voltage within the scope of safe voltage thresholds, generates the first level signal；If supply voltage does not exist
Within the scope of safe voltage thresholds, then second electrical level signal is generated.
S807: when generating the first level signal, control storage medium executes the first operation, and when generation second electrical level
When signal, control storage medium executes the second operation, and the first operation is different with the second operation.
In one example, when generating the first level signal, control storage medium executes the first operation, and when generation
When second electrical level signal, control storage medium executes the second operation, specifically includes:
When generating the first level signal, the current working condition of storage medium is maintained；When generation second electrical level signal
When, start-up study waits, and the decision level signal condition after the delay waiting time terminates；If level signal state is first
Level signal then maintains the current working condition of storage medium；If level signal state is second electrical level signal, start standby
Electric protection mechanism.
The detailed description of method of supplying power to correlation step about above-mentioned storage medium can refer to the power supply of above-mentioned storage medium
System embodiment no longer illustrates herein.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.System and system embodiment described above is only schematical, wherein the conduct
The unit of separate part description may or may not be physically separated, component shown as a unit can be or
Person may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can root
According to actual need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel can understand and implement without creative efforts.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (11)
1. a kind of power supply system of storage medium characterized by comprising
Power supply module, for exporting supply voltage to storage medium；
Feed circuit, for obtaining the supply voltage of the power supply module output, according to the power supply module
The supply voltage of output generates feedback voltage；
Compensation circuit, for receiving the feedback voltage, and by the compensation factor in the compensation circuit to the feedback electricity
Pressure compensates, and the supply voltage exported based on compensated feedback voltage to the power supply module is adjusted, so that
Supply voltage adjusted is within the scope of safe voltage thresholds.
2. the power supply system of storage medium according to claim 1, which is characterized in that further include: voltage detection module；Institute
Voltage detection module is stated, for executing voltage detecting step:
Obtain the supply voltage of the power supply module output；
Judge the supply voltage whether within the scope of the safe voltage thresholds；
If the supply voltage within the scope of the safe voltage thresholds, generates the first level signal；
If the supply voltage generates second electrical level signal not within the scope of the safe voltage thresholds.
3. the power supply system of storage medium according to claim 2, which is characterized in that further include: status control module；Institute
Status control module is stated, is used for:
When receiving first level signal, controls the storage medium and execute the first operation, and is described when receiving
When second electrical level signal, controls the storage medium and execute the second operation, first operation is different with second operation.
4. the power supply system of storage medium according to claim 3, which is characterized in that the status control module, specifically
For:
When receiving first level signal, the current working condition of storage medium is maintained；
When receiving the second electrical level signal, start-up study is waited, and judges the voltage after delay waiting terminates
The level signal of detection module output；If the level signal is first level signal, the current of storage medium is maintained
Working condition；If the level signal is the second electrical level signal, start standby electric protection mechanism.
5. the power supply system of storage medium according to claim 2, which is characterized in that the voltage detection module is also used
In:
Enable signal is received, when the enable signal is useful signal, executes the voltage detecting step.
6. the power supply system of storage medium according to claim 1, which is characterized in that the compensation circuit includes: protection
Resistance, first capacitor and the second capacitor；
The first end of the protective resistance is grounded, and the second end of the protective resistance is connected with the second end of second capacitor；
Wherein, the resistance value of the protective resistance is within the scope of preset resistive value；
The first end of second capacitor is connected with the first end of first capacitor, the first end of second capacitor and described first
Access pin of the tie point of the first end of capacitor as compensation circuit, the access pin is for receiving the feedback voltage；
The second end of the first capacitor is grounded.
7. a kind of method of supplying power to of storage medium, which is characterized in that applied to the power supply system of storage medium, the method packet
It includes:
Obtain the supply voltage exported to storage medium；
According to the supply voltage, feedback voltage is generated；
The feedback voltage is compensated by compensation factor, the supply voltage is carried out based on compensated feedback voltage
It adjusts, so that the supply voltage after adjusting is within the scope of safe voltage thresholds.
8. the method for supplying power to of storage medium according to claim 7, which is characterized in that further include:
Obtain the supply voltage；
Judge the supply voltage whether within the scope of the safe voltage thresholds；
If the supply voltage within the scope of the safe voltage thresholds, generates the first level signal；
If the supply voltage generates second electrical level signal not within the scope of the safe voltage thresholds.
9. the method for supplying power to of storage medium according to claim 8, which is characterized in that further include:
When generating first level signal, controls the storage medium and execute the first operation, and when generation described second
When level signal, controls the storage medium and execute the second operation, first operation is different with second operation.
10. the method for supplying power to of storage medium according to claim 9, which is characterized in that described electric when generating described first
When ordinary mail, controls the storage medium and execute the first operation, and when generating the second electrical level signal, deposited described in control
Storage media executes the second operation, comprising:
When generating first level signal, the current working condition of storage medium is maintained；
When generating the second electrical level signal, start-up study is waited, and decision level is believed after the delay waiting time terminates
Number state；If the level signal state is first level signal, the current working condition of storage medium is maintained；If
The level signal state is the second electrical level signal, then starts standby electric protection mechanism.
11. the method for supplying power to of storage medium according to claim 8, which is characterized in that further include: enable signal is received,
When the enable signal is useful signal, the step of obtaining the supply voltage is executed.
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| CN201910736144.6A CN110515447B (en) | 2019-08-09 | 2019-08-09 | Power supply system and method for storage medium |
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| CN201910736144.6A CN110515447B (en) | 2019-08-09 | 2019-08-09 | Power supply system and method for storage medium |
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| CN110515447B CN110515447B (en) | 2021-05-04 |
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