CN109245208A - A kind of charging/discharging thereof and system of storage capacitor - Google Patents
A kind of charging/discharging thereof and system of storage capacitor Download PDFInfo
- Publication number
- CN109245208A CN109245208A CN201811108532.1A CN201811108532A CN109245208A CN 109245208 A CN109245208 A CN 109245208A CN 201811108532 A CN201811108532 A CN 201811108532A CN 109245208 A CN109245208 A CN 109245208A
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- Prior art keywords
- voltage
- storage capacitor
- charge
- charging
- input terminal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This application discloses a kind of charging/discharging thereofs of storage capacitor, are applied in CBU, comprising: when charging, after input terminal voltage is increased to first voltage by reference voltage, to storage capacitor inputing power；Upon discharging, after the voltage of the storage capacitor being dropped to the reference voltage, electric energy is exported by output end.Compared with prior art, input terminal voltage and output end voltage of the invention remains reference voltage, but due to first increasing input terminal voltage when charging, the voltage of storage capacitor is higher, and storage capacity greatly improves, in the case where discharge cut-off voltage is constant, electric discharge pressure difference of the invention is obviously bigger than the prior art, therefore in the present invention storage capacitor electric discharge duration is more long namely the working time of CBU is longer, ensure that storage system has more plenty of time to carry out Backup Data.Disclosed herein as well is a kind of charge-discharge system of storage capacitor, beneficial effect having the same.
Description
Technical field
The present invention relates to store standby electrical domain, the in particular to charging/discharging thereof and system of a kind of storage capacitor.
Background technique
In order to guarantee the data safety of storage system, in PSU (power supply unit) power down, storage system by
CBU (cap backup unit, the standby electric module of capacitor) power supply carries out data backup.Existing CBU is generally used as individual mould
Block, positioned at the dedicated location of complete machine.At work, CBU module is generally output and input using normal 12V voltage as benchmark, is put
Voltage lands since 12V when establishing the beginning by cable, drop to 9V or so and stops electric discharge.It, can since the supply voltage variation of CBU module is small
The electric energy for being supplied to storage system is few, and efficiency is very low.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that current those skilled in the art need to solve
Problem.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of charging/discharging thereof of storage capacitor that discharge capability is high and being
System, to provide more electric energy for data backup.Its concrete scheme is as follows:
A kind of charging/discharging thereof of storage capacitor is applied in CBU, comprising:
When charging, after input terminal voltage being increased to first voltage by reference voltage, to storage capacitor inputing power；
Upon discharging, after the voltage of the storage capacitor being dropped to the reference voltage, electric energy is exported by output end.
Preferably, the process to storage capacitor inputing power, specifically includes:
The input terminal voltage is down to charging voltage by the first voltage, constant current is carried out to the storage capacitor and is filled
Electricity, until the constant current ends, then to the storage capacitor with constant-voltage charge.
Correspondingly, being applied in CBU the invention discloses a kind of charge-discharge system of storage capacitor, comprising:
Boost charge module, it is defeated to storage capacitor after input terminal voltage is increased to first voltage by reference voltage
Enter electric energy；
Step-down discharge unit passes through output end after the voltage of the storage capacitor is dropped to the reference voltage
Export electric energy.
Preferably, the boost charge module specifically includes:
Boosting unit, for the input terminal voltage to be increased to the first voltage by the reference voltage；
Charhing unit, for the input terminal voltage to be inputted the storage capacitor, when filling the storage capacitor completely its
Voltage is second voltage.
Preferably, the charhing unit is specifically used for:
The input terminal voltage is down to charging voltage by the first voltage, constant current is carried out to the storage capacitor and is filled
Electricity, until the constant current ends, then to the storage capacitor with constant-voltage charge.
Preferably, the storage capacitor includes more concatenated super capacitors.
Preferably, the charge-discharge system further includes reverse-filling module, for the boost charge module and described to be isolated
The operating path of step-down discharge module.
Preferably, the charge-discharge system further include:
State detection module, for detecting the charging and discharging state of the storage capacitor.
Preferably, the charge-discharge system further include:
VPD module, for carrying out identity and the condition managing of CBU.
The invention discloses a kind of charging/discharging thereofs of storage capacitor, are applied in CBU, comprising: when charging, will input
After end voltage is increased to first voltage by reference voltage, to storage capacitor inputing power；Upon discharging, by the storage capacitor
After voltage drops to the reference voltage, electric energy is exported by output end.Compared with prior art, input terminal voltage of the invention with
Output end voltage remains reference voltage, but due to first increasing input terminal voltage when charging, the voltage of storage capacitor is higher,
Storage capacity greatly improves, and in the case where discharge cut-off voltage is constant, electric discharge pressure difference of the invention is obviously more than the prior art
Greatly, the electric discharge duration of storage capacitor is more long therefore in the present invention namely the working time of CBU is longer, ensure that storage system has
More plenty of time carrys out Backup Data.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, 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 invention 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 is a kind of step flow chart of the charging/discharging thereof of storage capacitor in the embodiment of the present invention；
Fig. 2 is a kind of structure distribution figure of the charge-discharge system of storage capacitor in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to guarantee the data safety of storage system, in PSU (power supply unit) power down, storage system by
CBU (cap backup unit, the standby electric module of capacitor) power supply carries out data backup.Existing CBU is generally used as individual mould
Block, positioned at the dedicated location of complete machine.At work, CBU module is generally output and input using normal 12V voltage as benchmark, is put
Voltage lands since 12V when establishing the beginning by cable, drop to 9V or so and stops electric discharge.It, can since the supply voltage variation of CBU module is small
The electric energy for being supplied to storage system is few, and efficiency is very low.
Compared with prior art, input terminal voltage of the invention and output end voltage remain reference voltage, but due to filling
Input terminal voltage is first increased when electric, the voltage of storage capacitor is higher, and storage capacity greatly improves, constant in discharge cut-off voltage
In the case where, electric discharge pressure difference of the invention is obviously bigger than the prior art, therefore in the present invention storage capacitor electric discharge duration more
Long namely the working time of CBU is longer, ensure that storage system has more plenty of time to carry out Backup Data.
The embodiment of the invention discloses a kind of charging/discharging thereofs of storage capacitor, are applied in CBU, shown in Figure 1, packet
It includes:
S1: when charging, after input terminal voltage is increased to first voltage by reference voltage, electricity is inputted to storage capacitor
Energy；
In the prior art, when storage capacitor and the external world carry out energy transmission, using connector as Fabric Interface, directly
Using reference voltage as input terminal voltage and output end voltage, usual reference voltage is 12V.
It is understood that the first voltage in the present embodiment is apparently higher than reference voltage, it is traditionally arranged to be 24V；To
When storage capacitor inputing power, actually a kind of decompression charging, therefore the voltage value that storage capacitor is finally full of is less than first
Voltage may be configured as 20V or so.
Wherein, the storage capacitor in the present embodiment is generally more concatenated super capacitors, to meet the present embodiment to electricity
The double requirements of energy capacity and voltage.
Specifically, the process to storage capacitor inputing power includes:
The input terminal voltage is down to charging voltage by the first voltage, constant current is carried out to the storage capacitor and is filled
Electricity, until the constant current ends, then to the storage capacitor with constant-voltage charge.
It is understood that constant-voltage charge is a kind of conventional means for carrying out storage capacitor transmission of electricity to constant-current charge again.
S2: upon discharging, after the voltage of the storage capacitor is dropped to the reference voltage, electricity is exported by output end
Energy.
By learning above, when exporting electric energy to output end, acceptable voltage is still benchmark voltage, and energy storage at this time is electric
The voltage of appearance is higher than reference voltage, it is therefore desirable to carry out decompression processing.
It is understood that voltage can gradually decrease since storage capacitor exports electric energy, finally reaching blanking voltage
Stop output electric energy afterwards.Here blanking voltage is the minimum voltage that can support hardware effort in storage system, and different deposits
The corresponding minimum voltage of storage system may be different, but the range of blanking voltage is generally between 8~10V.
Discharge process in the prior art, the voltage of storage capacitor drops to blanking voltage by reference voltage, namely is dropped by 12V
To 9V；And the voltage of storage capacitor by slightly lower drops to blanking voltage with first voltage in the present invention, namely is down to 9V by 20V；Phase
Compared with for, discharge range of the invention is significantly wider, and discharge capability improves 3 times or more.Further, onesize in backup
Data when, the present invention is 3 times of the prior art to the support time of storage system, to reduce the rate request to hard disk,
The speed of backup harddisk can drop to original one third, and the hard disk cost for configuring storage system declines to a great extent.
The embodiment of the invention discloses a kind of charging/discharging thereofs of storage capacitor, are applied in CBU, comprising: when charging,
After input terminal voltage is increased to first voltage by reference voltage, to storage capacitor inputing power；Upon discharging, by the energy storage
After the voltage of capacitor drops to the reference voltage, electric energy is exported by output end.Compared with prior art, input terminal of the invention
Voltage and output end voltage remain reference voltage, but due to first increasing input terminal voltage, the electricity of storage capacitor when charging
Pressure is higher, and storage capacity greatly improves, and in the case where discharge cut-off voltage is constant, electric discharge pressure difference of the invention is obviously than existing
Technology is bigger, thus in the present invention storage capacitor electric discharge duration is more long namely the working time of CBU is longer, ensure that storage
System has more plenty of time to carry out Backup Data.
Correspondingly, being applied in CBU, referring to fig. 2 the embodiment of the invention discloses a kind of charge-discharge system of storage capacitor
It is shown, comprising:
Boost charge module 1, it is defeated to storage capacitor after input terminal voltage is increased to first voltage by reference voltage
Enter electric energy；
Step-down discharge unit 2 passes through output end after the voltage of the storage capacitor is dropped to the reference voltage
Export electric energy.
Further, the boost charge module 1 specifically includes:
Boosting unit 11, for the input terminal voltage to be increased to the first voltage by the reference voltage；
Charhing unit 12, for the input terminal voltage to be inputted the storage capacitor, when filling the storage capacitor completely
Its voltage is second voltage.
Compared with prior art, input terminal voltage of the invention and output end voltage remain reference voltage, but due to filling
Input terminal voltage is first increased when electric, the voltage of storage capacitor is higher, and storage capacity greatly improves, constant in discharge cut-off voltage
In the case where, electric discharge pressure difference of the invention is obviously bigger than the prior art, therefore in the present invention storage capacitor electric discharge duration more
Long namely the working time of CBU is longer, ensure that storage system has more plenty of time to carry out Backup Data.
Wherein, the charhing unit 12 is specifically used for:
The input terminal voltage is down to charging voltage by the first voltage, constant current is carried out to the storage capacitor and is filled
Electricity, until the constant current ends, then to the storage capacitor with constant-voltage charge.
Specifically, the storage capacitor includes more concatenated super capacitors.
Further, the charge-discharge system further includes reverse-filling module 3, for 1 He of boost charge module to be isolated
The operating path of the step-down discharge module 2.
Because boost charge module 1 and some circuit of step-down discharge module 2 are overlapped, but operating current direction is different,
In order to avoid operating current reverse irrigation, provided with the reverse-filling module 3 comprising diode.
Further, the charge-discharge system further includes state detection module 4, for detecting the charge and discharge of the storage capacitor
Electricity condition.State detection module 4 is connect by managing bus with ROM, outer welding system, not only can be by the data of charging and discharging state
Record storage is got off, and the related command for storage capacitor and execution can also be obtained.
Further, the charge-discharge system can also include VPD module 5, for carrying out the identity and state of CBU
Management.
It is understood that passing through company when charge-discharge system and the external world carry out information and energy transmission in the present embodiment
The input and output pin for connecing device is realized.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The charging/discharging thereof and system of a kind of storage capacitor provided by the present invention are described in detail above, herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention；At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (9)
1. a kind of charging/discharging thereof of storage capacitor is applied in CBU characterized by comprising
When charging, after input terminal voltage being increased to first voltage by reference voltage, to storage capacitor inputing power；
Upon discharging, after the voltage of the storage capacitor being dropped to the reference voltage, electric energy is exported by output end.
2. charging/discharging thereof according to claim 1, which is characterized in that the process to storage capacitor inputing power, tool
Body includes:
The input terminal voltage is down to charging voltage by the first voltage, constant-current charge is carried out to the storage capacitor, directly
End to the constant current, then to the storage capacitor with constant-voltage charge.
3. a kind of charge-discharge system of storage capacitor is applied in CBU characterized by comprising
Boost charge module inputs electricity to storage capacitor after input terminal voltage is increased to first voltage by reference voltage
Energy；
Step-down discharge unit is exported after the voltage of the storage capacitor is dropped to the reference voltage by output end
Electric energy.
4. charge-discharge system according to claim 3, which is characterized in that the boost charge module specifically includes:
Boosting unit, for the input terminal voltage to be increased to the first voltage by the reference voltage；
Charhing unit, for the input terminal voltage to be inputted the storage capacitor, its voltage when filling the storage capacitor completely
For second voltage.
5. charge-discharge system according to claim 4, which is characterized in that the charhing unit is specifically used for:
The input terminal voltage is down to charging voltage by the first voltage, constant-current charge is carried out to the storage capacitor, directly
End to the constant current, then to the storage capacitor with constant-voltage charge.
6. according to any one of claim 3 to 5 charge-discharge system, which is characterized in that
The storage capacitor includes more concatenated super capacitors.
7. charge-discharge system according to claim 6, which is characterized in that further include reverse-filling module, for the liter to be isolated
Press the operating path of charging module and the step-down discharge module.
8. charge-discharge system according to claim 7, which is characterized in that further include:
State detection module, for detecting the charging and discharging state of the storage capacitor.
9. charge-discharge system according to claim 8, which is characterized in that further include:
VPD module, for carrying out identity and the condition managing of CBU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108532.1A CN109245208A (en) | 2018-09-21 | 2018-09-21 | A kind of charging/discharging thereof and system of storage capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108532.1A CN109245208A (en) | 2018-09-21 | 2018-09-21 | A kind of charging/discharging thereof and system of storage capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109245208A true CN109245208A (en) | 2019-01-18 |
Family
ID=65057351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108532.1A Pending CN109245208A (en) | 2018-09-21 | 2018-09-21 | A kind of charging/discharging thereof and system of storage capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN109245208A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803388A (en) * | 2021-03-19 | 2021-05-14 | 株洲中车时代电气股份有限公司 | Discharging system of energy storage device and ground discharging system of new energy traffic vehicle |
| CN113054735A (en) * | 2019-12-26 | 2021-06-29 | 西安华为技术有限公司 | Circuit module and electronic equipment |
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| CN201656419U (en) * | 2010-01-12 | 2010-11-24 | 瑞斯康达科技发展股份有限公司 | Power failure warning circuit of network terminal equipment |
| CN205377418U (en) * | 2016-01-26 | 2016-07-06 | 成都赛林科技有限公司 | Special type communications facilities power supply conditioning module |
| CN107294197A (en) * | 2017-06-27 | 2017-10-24 | 郑州云海信息技术有限公司 | A kind of solid state hard disc and its electric circuit of incense |
| CN107608495A (en) * | 2017-11-01 | 2018-01-19 | 郑州云海信息技术有限公司 | A kind of topology type redundancy is for method for electrically, system, equipment and readable storage medium storing program for executing |
| CN207052297U (en) * | 2017-08-18 | 2018-02-27 | 深圳源创存储科技有限公司 | Power-off protection of solid state disk circuit and solid state hard disc |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656419U (en) * | 2010-01-12 | 2010-11-24 | 瑞斯康达科技发展股份有限公司 | Power failure warning circuit of network terminal equipment |
| CN205377418U (en) * | 2016-01-26 | 2016-07-06 | 成都赛林科技有限公司 | Special type communications facilities power supply conditioning module |
| CN107294197A (en) * | 2017-06-27 | 2017-10-24 | 郑州云海信息技术有限公司 | A kind of solid state hard disc and its electric circuit of incense |
| CN207052297U (en) * | 2017-08-18 | 2018-02-27 | 深圳源创存储科技有限公司 | Power-off protection of solid state disk circuit and solid state hard disc |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054735A (en) * | 2019-12-26 | 2021-06-29 | 西安华为技术有限公司 | Circuit module and electronic equipment |
| CN112803388A (en) * | 2021-03-19 | 2021-05-14 | 株洲中车时代电气股份有限公司 | Discharging system of energy storage device and ground discharging system of new energy traffic vehicle |
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