CN107844716A - A kind of power-off protection of solid state disk device - Google Patents
A kind of power-off protection of solid state disk device Download PDFInfo
- Publication number
- CN107844716A CN107844716A CN201711129407.4A CN201711129407A CN107844716A CN 107844716 A CN107844716 A CN 107844716A CN 201711129407 A CN201711129407 A CN 201711129407A CN 107844716 A CN107844716 A CN 107844716A
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- Prior art keywords
- circuit
- solid state
- voltage detection
- protection
- hard disc
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/81—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Read Only Memory (AREA)
Abstract
The present invention relates to field of data storage; more particularly to a kind of power-off protection of solid state disk device, including the power supply circuit of energization input, booster circuit, protection circuit, capacitance group, solid state hard disc, first voltage detection circuit, second voltage detection circuit, tertiary voltage detection circuit and main control chip；When 3.3V IN disconnect; capacitance group performs the power supply circuit power supply inside to solid state hard disc; the circuit response of first voltage detection simultaneously; solid state disk buffer zone performs data protection processing; before second voltage detection circuit response; buffer data protection processing is completed and starts flash data processing, and tertiary voltage completes flash data processing before detecting circuit response, and the data protection processing to whole solid state hard disc is completed.
Description
Technical field
The present invention relates to field of data storage, more particularly to a kind of power-off protection of solid state disk device.
Background technology
MSATA is SATA associations (Serial ATA International Organization；SATA-IO) develop
The product specification of new mini-SATA (mSATA) interface controller, new controller can allow SATA Technology Integrations in small size
Device on.MSATA can be provided with the speed and reliability SATA interface standard simultaneously, there is provided small size CE products
The more efficient save scheme that economic benefit and can be met of the system development business of (such as Notebooks/Netbook) and manufacturer.By
In mSATA MINI PCI-E SSD compacts, more and more notes this products begin to use the notebook of this interface hard
Disk.
Power-off protection of solid state disk technology is progressively ripe at present, and power down protection technology refers to work as solid state hard disc externally fed
During the unexpected power down of power supply, cause brokenly also in the data of solid state disk buffer zone because failing being written in time in Flash chip
Bad or loss.
It is existing solution the problem most simple effective method be：The sufficiently large appearance in parallel on solid state hard disc in-line power circuit
The electric capacity of value stores electric energy, when unexpected power loss event occurs, can support hard disk controller by the electric energy that electric capacity stores
Complete the operation data of buffering area being written in Flash chip.
With the fast development that solid state hard disc stores, more and more electronic product uses solid state hard disc now, wherein
The mSATA solid state hard discs of small size use also more normalization on industry control class main frame, and these products are wanted to data protection
Ask also more and more stricter, it is therefore desirable to which a kind of power-off protection of solid state disk device effectively manages mSATA solid state hard discs, makes
MSATA solid state hard discs are using being above without fear of an attack from the rear.
The content of the invention
The technical problems to be solved by the invention are：A kind of power-down protection apparatus for mSATA solid state hard discs is provided.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of power-off protection of solid state disk device, including energization input, booster circuit, protection circuit, capacitance group, solid-state
Power supply circuit, first voltage detection circuit, second voltage detection circuit, tertiary voltage detection circuit and the main control chip of hard disk；
The energization input is connected by booster circuit with protection circuit, the power supply of the protection circuit and solid state hard disc
Circuit, the 3.3V supply voltages for energization input to be inputted are powered after boosting to 5V for the power supply circuit of solid state hard disc；
The protection circuit is connected with capacitance group, the power supply circuit of the capacitance group and solid state hard disc, for will be boosted
The voltage that circuit boosts to 5V is charged for capacitance group, and capacitance group is powered for the power supply circuit of solid state hard disc；
The first voltage detection circuit is arranged on the path between protection circuit and capacitance group, and is connected with main control chip
Connect, for detecting the magnitude of voltage after boosted circuit boosts and feeding back to main control chip；
The power supply circuit with solid state hard disc, tertiary voltage detect circuit and master control core to the second voltage detection circuit respectively
Piece is connected, and the tertiary voltage detection circuit is connected with main control chip；
The main control chip is used for magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit pre-
If in the period being 5V, then the branch road being made up of energization input, booster circuit and protection circuit is the power supply of solid state hard disc
Circuit is powered, under magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit continues in preset time period
Predetermined value is down to, then switches to the power supply circuit that capacitance group is solid state hard disc；When first voltage detection circuit response, control is solid
State hard disk buffering area performs data protection processing, and before second voltage detection circuit response at control buffer data protection
Reason is completed and starts flash data processing, and completes flash data processing before tertiary voltage detection circuit response.
The beneficial effects of the present invention are：
A kind of power-off protection of solid state disk device provided by the invention, booster circuit are that 3.3V is raised to 5V to make main control chip
The function of self-test first voltage detection circuit is achieved, while fully charged to capacitance group, and capacitance group capacitance is sufficiently large, fully charged
Enough electric energy can be provided afterwards to the power supply circuit inside solid state hard disc, enable main control chip to have grace time to perform Data Protection Section
Manage whole process.Mainly when 3.3V IN disconnect, capacitance group performs the power supply circuit power supply inside to solid state hard disc, simultaneously
First voltage detection circuit response, solid state disk buffer zone performs data protection processing, and is rung in second voltage detection circuit
Ying Qian, buffer data protection processing are completed and start flash data processing, are completed before tertiary voltage detection circuit response
Flash data processing, so far the data protection processing of whole solid state hard disc are completed.
Brief description of the drawings
Fig. 1 is the structural representation of the power-off protection of solid state disk device of the present invention；
Label declaration：
1st, energization input；2nd, booster circuit；3rd, protection circuit；4th, capacitance group；
5th, the power supply circuit of solid state hard disc；6th, first voltage detection circuit；7th, second voltage detection circuit；
8th, tertiary voltage detection circuit；9th, main control chip.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
Most critical design of the present invention is：Voltage is raised to 5V by booster circuit from 3.3V, plays master control itself detection function
Fully charged with capacitance group, after 3.3V IN disconnect, capacitance group gives the power supply of solid state hard disc internal circuit, and main control chip is being examined
Voltage is measured less than after critical value, progress data protection handles measure.
It refer to Fig. 1, a kind of power-off protection of solid state disk device provided by the invention, including energization input 1, boosting electricity
Road 2, protection circuit 3, capacitance group 4, the power supply circuit 5 of solid state hard disc, first voltage detection circuit 6, second voltage detection circuit
7th, tertiary voltage detection circuit 8 and main control chip 9；
The energization input 1 is connected by booster circuit 2 with protection circuit 3, the protection circuit 3 and solid state hard disc
Power supply circuit 5, the 3.3V supply voltages for energization input to be inputted supply after boosting to 5V for the power supply circuit of solid state hard disc
Electricity；
The protection circuit 3 is connected with capacitance group 4, the power supply circuit 5 of the capacitance group 4 and solid state hard disc, for will be through
The voltage that booster circuit boosts to 5V is charged for capacitance group, and capacitance group is powered for the power supply circuit of solid state hard disc；
First voltage detection circuit 6 is arranged on the path between protection circuit 3 and capacitance group 4, and with master control core
Piece 9 connects, for detecting the magnitude of voltage after boosted circuit boosts and feeding back to main control chip；
The power supply circuit 5 with solid state hard disc, tertiary voltage detect circuit 8 and master to the second voltage detection circuit 7 respectively
Control chip 9 is connected, and the tertiary voltage detection circuit 8 is connected with main control chip 9；
The main control chip 9 is used for magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit pre-
If in the period being 5V, then the branch road being made up of energization input, booster circuit and protection circuit is the power supply of solid state hard disc
Circuit is powered, under magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit continues in preset time period
Predetermined value is down to, then switches to the power supply circuit that capacitance group is solid state hard disc；When first voltage detection circuit response, control is solid
State hard disk buffering area performs data protection processing, and before second voltage detection circuit response at control buffer data protection
Reason is completed and starts flash data processing, and completes flash data processing before tertiary voltage detection circuit response.
It was found from foregoing description, the beneficial effects of the present invention are：
A kind of power-off protection of solid state disk device provided by the invention, booster circuit are that 3.3V is raised to 5V to make main control chip
The function of self-test first voltage detection circuit is achieved, while fully charged to capacitance group, and capacitance group capacitance is sufficiently large, fully charged
Enough electric energy can be provided afterwards to the power supply circuit inside solid state hard disc, enable main control chip to have grace time to perform Data Protection Section
Manage whole process.Mainly when 3.3V IN disconnect, capacitance group performs the power supply circuit power supply inside to solid state hard disc, simultaneously
First voltage detection circuit response, solid state disk buffer zone performs data protection processing, and is rung in second voltage detection circuit
Ying Qian, buffer data protection processing are completed and start flash data processing, are completed before tertiary voltage detection circuit response
Flash data processing, so far the data protection processing of whole solid state hard disc are completed.
A kind of operation principle of power-off protection of solid state disk device provided by the invention is：
Booster circuit is that 3.3V is raised to 5V to be achieved the function of master control self-test voltage detecting 1, while gives capacitance group
It is fully charged.Capacitance group capacitance is sufficiently large, and can provide enough electric energy after fully charged gives solid state hard disc internal circuit, master control is had and fills
The sufficient time performs data protection processing whole process.When 3.3V IN disconnect, capacitance group performs to be supplied to solid state hard disc internal circuit
Electricity, while voltage detecting 1 responds, solid state disk buffer zone performs data protection processing, before voltage detecting 2 responds, number of buffer
Completed according to protection processing and start flash data processing, voltage detecting 3 completes flash data processing before responding.So far it is whole solid
The data protection processing of state hard disk is completed.
The structure of wherein first voltage detection circuit, second voltage detection circuit and tertiary voltage detection circuit is conventional
Voltage detecting circuit, the structure of three voltage detecting circuits can be identical, can also differ.Booster circuit is energy
Enough circuits that 3.3V voltage is risen to 5V.
Further, the test side of the first voltage detection circuit is set close to the output end of protection circuit.
This structure can be advantageous to quick response, avoid because response speed causes data write-in to trigger data to lose not in time slowly
The influence of mistake.
Further, the solid state hard disc is mSATA solid state hard discs.
Fig. 1 is refer to, embodiments of the invention one are：
A kind of power-off protection of solid state disk device provided by the invention, including energization input 1, booster circuit 2, protection electricity
Road 3, capacitance group 4, the power supply circuit 5 of solid state hard disc, first voltage detection circuit 6, second voltage detection circuit 7, tertiary voltage
Detect circuit 8 and main control chip 9；Wherein first voltage detection circuit, second voltage detection circuit and tertiary voltage detection circuit
Structure be conventional voltage detecting circuit, the structure of three voltage detecting circuits can be identical, can also differ.
Booster circuit is the circuit that 3.3V voltage can be risen to 5V.Wherein described solid state hard disc is mSATA solid state hard discs.
The energization input 1 is connected by booster circuit 2 with protection circuit 3, the protection circuit 3 and solid state hard disc
Power supply circuit 5, the 3.3V supply voltages for energization input to be inputted supply after boosting to 5V for the power supply circuit of solid state hard disc
Electricity；
The protection circuit 3 is connected with capacitance group 4, the power supply circuit 5 of the capacitance group 4 and solid state hard disc, for will be through
The voltage that booster circuit boosts to 5V is charged for capacitance group, and capacitance group is powered for the power supply circuit of solid state hard disc；
First voltage detection circuit 6 is arranged on the path between protection circuit 3 and capacitance group 4, and with master control core
Piece 9 connects, for detecting the magnitude of voltage after boosted circuit boosts and feeding back to main control chip；
The power supply circuit 5 with solid state hard disc, tertiary voltage detect circuit 8 and master to the second voltage detection circuit 7 respectively
Control chip 9 is connected, and the tertiary voltage detection circuit 8 is connected with main control chip 9；
The main control chip 9 is used for magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit pre-
If in the period being 5V, then the branch road being made up of energization input, booster circuit and protection circuit is the power supply of solid state hard disc
Circuit is powered, under magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit continues in preset time period
Predetermined value is down to, then switches to the power supply circuit that capacitance group is solid state hard disc；When first voltage detection circuit response, control is solid
State hard disk buffering area performs data protection processing, and before second voltage detection circuit response at control buffer data protection
Reason is completed and starts flash data processing, and completes flash data processing before tertiary voltage detection circuit response.
The test side of above-mentioned first voltage detection circuit is set close to the output end of protection circuit.This structure can be advantageous to
Quick response, avoid because response speed causes data write-in to trigger the influence of loss of data not in time slowly.
In summary, a kind of power-off protection of solid state disk device provided by the invention, booster circuit is that 3.3V is raised to 5V
The function of main control chip self-test first voltage detection circuit is achieved, while, capacitance group capacitance foot fully charged to capacitance group
It is enough big, enough electric energy can be provided after fully charged to the power supply circuit inside solid state hard disc, enable main control chip to have grace time to hold
Row data protection handles whole process.Mainly when 3.3V IN disconnect, capacitance group performs the power supply electricity inside to solid state hard disc
Road powers, while first voltage detection circuit response, solid state disk buffer zone perform data protection processing, and in second voltage
Before detecting circuit response, buffer data protection processing is completed and starts flash data processing, tertiary voltage detection circuit response
Preceding completion flash data processing, so far the data protection processing of whole solid state hard disc are completed.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (3)
1. a kind of power-off protection of solid state disk device, it is characterised in that including energization input, booster circuit, protection circuit, electricity
Appearance group, the power supply circuit of solid state hard disc, first voltage detection circuit, second voltage detection circuit, tertiary voltage detection circuit and
Main control chip；
The energization input is connected by booster circuit with protection circuit, the power supply electricity of the protection circuit and solid state hard disc
Road, the 3.3V supply voltages for energization input to be inputted are powered after boosting to 5V for the power supply circuit of solid state hard disc；
The protection circuit is connected with capacitance group, the power supply circuit of the capacitance group and solid state hard disc, for by boosted circuit
The voltage for boosting to 5V is charged for capacitance group, and capacitance group is powered for the power supply circuit of solid state hard disc；
The first voltage detection circuit is arranged on the path between protection circuit and capacitance group, and is connected with main control chip,
For detecting the magnitude of voltage after boosted circuit boosts and feeding back to main control chip；
The power supply circuit with solid state hard disc, tertiary voltage detection circuit and main control chip connect the second voltage detection circuit respectively
Connect, the tertiary voltage detection circuit is connected with main control chip；
The magnitude of voltage that the main control chip is used for after first voltage detection electric circuit inspection to boosted circuit boosting is when default
Between be 5V in section, then the branch road being made up of energization input, booster circuit and protection circuit is the power supply circuit of solid state hard disc
Power supply, continuous decrease is extremely in preset time period for magnitude of voltage after first voltage detection electric circuit inspection is boosted to boosted circuit
Predetermined value, then switch to the power supply circuit that capacitance group is solid state hard disc；When first voltage detection circuit response, control solid-state is hard
Disk buffering area performs data protection processing, and control buffer data protection has been handled before second voltage detection circuit response
Into and start flash data processing, and tertiary voltage detection circuit response before complete flash data processing.
2. power-off protection of solid state disk device according to claim 1, it is characterised in that the first voltage detects circuit
Test side close to protection circuit output end set.
3. power-off protection of solid state disk device according to claim 1, it is characterised in that the solid state hard disc is mSATA
Solid state hard disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129407.4A CN107844716A (en) | 2017-11-15 | 2017-11-15 | A kind of power-off protection of solid state disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129407.4A CN107844716A (en) | 2017-11-15 | 2017-11-15 | A kind of power-off protection of solid state disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107844716A true CN107844716A (en) | 2018-03-27 |
Family
ID=61678948
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711129407.4A Pending CN107844716A (en) | 2017-11-15 | 2017-11-15 | A kind of power-off protection of solid state disk device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857317A (en) * | 2020-07-24 | 2020-10-30 | 苏州浪潮智能科技有限公司 | Voltage pump circuit and method supporting power failure data protection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810331A (en) * | 2011-05-31 | 2012-12-05 | 鸿富锦精密工业（深圳）有限公司 | Data storage device power supply circuit |
| CN103995578A (en) * | 2013-03-15 | 2014-08-20 | 晶天电子（深圳）有限公司 | Member driving device possessing green energy data persisting mode |
| CN105279109A (en) * | 2014-11-25 | 2016-01-27 | 天津市英贝特航天科技有限公司 | Solid state disk power down protection circuit and power down protection method |
| WO2017138235A1 (en) * | 2016-02-08 | 2017-08-17 | ソニー株式会社 | Memory controller, non-volatile memory, and control method for memory controller |
-
2017
- 2017-11-15 CN CN201711129407.4A patent/CN107844716A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810331A (en) * | 2011-05-31 | 2012-12-05 | 鸿富锦精密工业（深圳）有限公司 | Data storage device power supply circuit |
| CN103995578A (en) * | 2013-03-15 | 2014-08-20 | 晶天电子（深圳）有限公司 | Member driving device possessing green energy data persisting mode |
| CN105279109A (en) * | 2014-11-25 | 2016-01-27 | 天津市英贝特航天科技有限公司 | Solid state disk power down protection circuit and power down protection method |
| WO2017138235A1 (en) * | 2016-02-08 | 2017-08-17 | ソニー株式会社 | Memory controller, non-volatile memory, and control method for memory controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857317A (en) * | 2020-07-24 | 2020-10-30 | 苏州浪潮智能科技有限公司 | Voltage pump circuit and method supporting power failure data protection |
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Application publication date: 20180327 |