CN110221675A - Hard disk power supply circuit - Google Patents
Hard disk power supply circuit Download PDFInfo
- Publication number
- CN110221675A CN110221675A CN201810175426.9A CN201810175426A CN110221675A CN 110221675 A CN110221675 A CN 110221675A CN 201810175426 A CN201810175426 A CN 201810175426A CN 110221675 A CN110221675 A CN 110221675A
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- China
- Prior art keywords
- power supply
- hard disk
- voltage
- state
- electrically connected
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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
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Sources (AREA)
Abstract
A kind of hard disk power supply circuit including hard disk power supply interface and is the first power supply module of hard disk power supply interface power supply, and the input voltage of first power supply module is the supply voltage of S0 state.The hard disk power supply circuit further includes the second power supply module and control module；Second power supply module is electrically connected to the hard disk power supply interface, and the input voltage of second power supply module is the supply voltage of S5 state；Control module is electrically connected to second power supply module, for detecting and judging whether the supply voltage of the S0 state is less than predeterminated voltage, and when the supply voltage for judging the S0 state is less than the predeterminated voltage, controls second power supply module and power to the hard disk power supply interface.Above-mentioned hard disk power supply circuit may be implemented to continue to execute untreated complete hard disc data when hard disk operational power supply is abnormal, avoids hard disc data from damaging or lose, improves the job stability of hard disk.
Description
Technical field
The present invention relates to technical field of electronic equipment more particularly to a kind of hard disk power supply circuits.
Background technique
Existing computer mainly connects city's alternating current by power supply adaptor to power, and no expected computer power supply is disconnected
If electricity will cause disk read-write process and interrupt suddenly and lead to data damage or loss, more have at a time when hard disk is accessing data
It may cause hard disk failure.
Summary of the invention
In view of the foregoing, it is necessary to a kind of hard disk power supply circuit be provided, can be avoided hard in computer abnormal power-down
Disk data damage.
An embodiment of the present invention provides a kind of hard disk power supply circuit, including hard disk power supply interface and powers for the hard disk
First power supply module of interface power supply, the input voltage of first power supply module are the supply voltage of S0 state.The hard disk
Power supply circuit further include: the second power supply module is electrically connected to the hard disk power supply interface, the input electricity of second power supply module
Pressure is the supply voltage of S5 state；And control module, it is electrically connected to second power supply module, for detecting and judging the S0
Whether the supply voltage of state is less than predeterminated voltage, and is less than the predeterminated voltage in the supply voltage for judging the S0 state
When, it controls second power supply module and powers to the hard disk power supply interface.
Preferably, the control module is also used to be equal to 0V and duration in the supply voltage for detecting the S0 state
When greater than the first preset time, controls second power supply module and stop powering to the hard disk power supply interface.
Preferably, first power supply module includes first switch chip, and the first switch chip includes the first input
End, the first enable end, the first output end and the first ground terminal, the first input end are used to receive the power supply electricity of the S0 state
Pressure, first enable end are electrically connected to the hard disk power supply for receiving a high level enable signal, first output end
Interface, the first ground terminal ground connection.
Preferably, the control module includes a SIO chip, and the SIO chip includes sense terminal and control terminal, when described
When the supply voltage that sense terminal detects the S0 state is less than the predeterminated voltage, the control terminal exports high level signal.
Preferably, second power supply module includes second switch chip, and the second switch chip includes the second input
End, the second enable end, second output terminal and the second ground terminal, second input terminal are used to receive the power supply electricity of the S5 state
Pressure, second enable end are electrically connected to the control terminal of the SIO chip, the second output terminal electrical connection by first resistor
In the hard disk power supply interface, the second ground terminal ground connection.
Preferably, the control module further include:
Second resistance, one end are used to receive the supply voltage of the S0 state, and the other end is electrically connected to the SIO chip
Sense terminal；
First capacitor, one end are electrically connected to the other end of the second resistance, other end ground connection；
3rd resistor is connected in parallel with the first capacitor；
Second capacitor, one end are electrically connected to one end of the second resistance, other end ground connection；And
Zener diode, plus earth, cathode are electrically connected to one end of the second resistance.
Preferably, the predeterminated voltage is 11V.
Compared with prior art, above-mentioned hard disk power supply circuit may be implemented to continue to hold when hard disk operational power supply is abnormal
The untreated complete hard disc data of row avoids hard disc data from damaging or lose, improves the job stability of hard disk, and at low cost
It is honest and clean.
Detailed description of the invention
Fig. 1 is the operation environment figure of an embodiment of hard disk power supply circuit of the present invention.
Fig. 2 is the functional block diagram of an embodiment of hard disk power supply circuit of the present invention.
Fig. 3 is the circuit diagram of an embodiment of hard disk power supply circuit of the present invention.
Main element symbol description
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
An embodiment of the present invention provides a kind of hard disk power supply circuit 100 referring to FIG. 1-2, for carrying out to hard disk 200
Power supply.The hard disk power supply circuit 100 and the hard disk 200 can be set in the host of an electronic equipment, and the electronics is set
It is standby to can be the equipment such as PC, industrial computer, server.
The hard disk power supply circuit 100 include hard disk power supply interface 10, the first power supply module 20, the second power supply module 30 and
Control module 40.First power supply module 20 is electrically connected to the hard disk power supply interface 10, and first power supply module 20 is used
It powers in for the hard disk power supply interface 10, the input voltage of first power supply module 20 is the supply voltage V1 of S0 state,
The S0 state refer to advanced configuration and power interface (Advanced Configuration and Power Interface,
ACPI S0 state).Second power supply module 30 is electrically connected to the hard disk power supply interface 10, second power supply module 30
Input voltage be S5 state supply voltage V2, the S5 state refers to the S5 state of ACPI.The control module 40 is electrically connected
Be connected to second power supply module 30, the control module 40 be used to detect and judge the S0 state supply voltage V1 whether
Less than predeterminated voltage, the control module 40 is also used to be less than the predeterminated voltage in the supply voltage V1 for judging the S0 state
When, it controls second power supply module 30 and powers to the hard disk power supply interface 10, and then realize the supply voltage in S0 state
When V1 power down, the hard disk 200 is powered by the supply voltage V2 of S5 state, to have handled unfinished hard disk number
According to, avoid hard disc data damage or lose.
In one embodiment, the supply voltage V1 of the S0 state is preferably equal to 12V, the supply voltage of the S5 state
V2 is preferably equal to 12V.The predeterminated voltage can be set according to practice situation, for example, the predeterminated voltage
It can be set as 11V, 10.5V.
In one embodiment, when the supply voltage V1 power down of the S0 state, the supply voltage V1 of the S0 state
0V is slowly dropped to by 12V.The control module 40 is also used to be down to 0V in the supply voltage V1 for detecting the S0 state and hold
When continuous time (duration of 0V) is greater than the first preset time, controls second power supply module 30 and stop supplying the hard disk
Electrical interface 10 is powered, and then may be implemented to power off hard disk after having handled unfinished hard disc data in hard disk 200, with symbol
Close power management specification.First preset time can be set according to practice situation, for example, described first is default
Time is set as 8s, 10s.
Please refer to Fig. 3, first power supply module 20 includes first switch chip U1.The first switch chip U1
Including first input end IN1, the first enable end EN1, the first output end OUT1, the first power end VCC1 and the first ground terminal
GND1.The first input end IN1 is used to receive the supply voltage V1, the first enable end EN1 of the S0 state for connecing
Receiving a high level enable signal SLP_S3, the first output end OUT1 is electrically connected to the hard disk power supply interface 10, and described
One power end VCC1 is electrically connected to the first power supply 3P3V_SB, the first ground terminal GND1 ground connection.When first enable end
When EN1 is high level, the first input end IN1 is connected with the first output end OUT1, and then first output end
The supply voltage V1 of the exportable S0 state of OUT1 is to the hard disk power supply interface 10.The first power supply 3P3V_SB is preferred
For 3.3V power supply.
The control module 40 includes SIO chip U3, first to 3rd resistor R1~R3, first capacitor C1, the second capacitor
C2 and zener diode D1.The SIO chip U3 includes sense terminal DET, control terminal 12V_Y, third power end VCC3 and third
Ground terminal GND3.Control terminal 12V_Y is electrically connected to one end of the 3rd resistor R3, and the third power end VCC3 is electrically connected to
Second source 3V_SB, the third ground terminal GND3 ground connection.One end of the first resistor R1 is for receiving the S5 state
Supply voltage V2, the other end of the first resistor R1 be electrically connected to the first capacitor C1 one end and the SIO chip U3
Sense terminal DET, the first capacitor C1 the other end ground connection.One end of the second capacitor C2 is electrically connected to first electricity
Hinder one end of R1, the other end ground connection of the second capacitor C2.The cathode of the zener diode D1 is electrically connected to described first
One end of resistance R1, the plus earth of the zener diode D1.One end of the second resistance R2 is electrically connected to described first
The common end of resistance R1 and the first capacitor C1, the other end ground connection of the second resistance R2.The second source 3V_SB is excellent
It is selected as 3V power supply.
Second power supply module 30 includes second switch chip U2.The second switch chip U2 includes the second input terminal
IN2, the second enable end EN2, second output terminal OUT2, second source end VCC2 and the second ground terminal GND2.Second input
The supply voltage V2, the second enable end EN2 that end IN2 is used to receive the S5 state are electrically connected to the 3rd resistor R3's
The other end, the second output terminal OUT2 are electrically connected to the hard disk power supply interface 10, the second source end VCC2 electrical connection
In the first power supply 3P3V_SB, the second ground terminal GND2 ground connection.When the SIO chip U3 detects the S0 state
Supply voltage V1 when being less than the predeterminated voltage, the control terminal 12V_Y exports high level signal to second enable end
EN2, the second input terminal IN2 are connected with the second output terminal OUT2, and then the exportable institute of the second output terminal OUT2
The supply voltage V2 of S5 state is stated to the hard disk power supply interface 10.
Above-mentioned hard disk power supply circuit may be implemented when hard disk operational power supply is abnormal, continue to execute untreated complete hard
Disk data avoid hard disc data from damaging or lose, improve the job stability of hard disk, and low in cost.
It will be apparent to those skilled in the art that the reality of production can be combined with scheme of the invention according to the present invention and inventive concept
Border needs to make other and is altered or modified accordingly, and these change and adjustment all should belong to range disclosed in this invention.
Claims (7)
1. a kind of hard disk power supply circuit including hard disk power supply interface and is the first power supply mould of hard disk power supply interface power supply
Block, the input voltage of first power supply module are the supply voltage of S0 state, which is characterized in that the hard disk power supply circuit is also
Include:
Second power supply module, is electrically connected to the hard disk power supply interface, and the input voltage of second power supply module is S5 state
Supply voltage；And
Control module is electrically connected to second power supply module, for detect and judge the S0 state supply voltage whether
Less than predeterminated voltage, and when the supply voltage for judging the S0 state is less than the predeterminated voltage, second power supply is controlled
Module powers to the hard disk power supply interface.
2. hard disk power supply circuit as described in claim 1, which is characterized in that the control module be also used to detect it is described
The supply voltage of S0 state controls the second power supply module stopping pair equal to 0V and when the duration is greater than the first preset time
The hard disk power supply interface power supply.
3. hard disk power supply circuit as described in claim 1, which is characterized in that first power supply module includes first switch core
Piece, the first switch chip include first input end, the first enable end, the first output end and the first ground terminal, and described first
Input terminal is used to receive the supply voltage of the S0 state, and first enable end is for receiving a high level enable signal, institute
It states the first output end and is electrically connected to the hard disk power supply interface, the first ground terminal ground connection.
4. hard disk power supply circuit as described in claim 1, which is characterized in that the control module includes a SIO chip, described
SIO chip includes sense terminal and control terminal, when the supply voltage that the sense terminal detects the S0 state is less than described preset
When voltage, the control terminal exports high level signal.
5. hard disk power supply circuit as claimed in claim 4, which is characterized in that second power supply module includes second switch core
Piece, the second switch chip include the second input terminal, the second enable end, second output terminal and the second ground terminal, described second
Input terminal is used to receive the supply voltage of the S5 state, and second enable end is electrically connected to the SIO by first resistor
The control terminal of chip, the second output terminal are electrically connected to the hard disk power supply interface, the second ground terminal ground connection.
6. hard disk power supply circuit as claimed in claim 4, which is characterized in that the control module further include:
Second resistance, one end are used to receive the supply voltage of the S0 state, and the other end is electrically connected to the detecting of the SIO chip
End；
First capacitor, one end are electrically connected to the other end of the second resistance, other end ground connection；
3rd resistor is connected in parallel with the first capacitor；
Second capacitor, one end are electrically connected to one end of the second resistance, other end ground connection；And
Zener diode, plus earth, cathode are electrically connected to one end of the second resistance.
7. hard disk power supply circuit as described in claim 1, which is characterized in that the predeterminated voltage is 11V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175426.9A CN110221675A (en) | 2018-03-02 | 2018-03-02 | Hard disk power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175426.9A CN110221675A (en) | 2018-03-02 | 2018-03-02 | Hard disk power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110221675A true CN110221675A (en) | 2019-09-10 |
Family
ID=67821877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810175426.9A Pending CN110221675A (en) | 2018-03-02 | 2018-03-02 | Hard disk power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110221675A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515194A (en) * | 2008-02-21 | 2009-08-26 | 鸿富锦精密工业（深圳）有限公司 | Computer operating state converting method |
| CN102646176A (en) * | 2011-02-17 | 2012-08-22 | 宏碁股份有限公司 | Hard disk data protection system and protection method thereof |
| CN103473186A (en) * | 2012-06-07 | 2013-12-25 | 鸿富锦精密工业（深圳）有限公司 | SSD (solid state disc) data protection circuit |
| CN103793033A (en) * | 2012-10-29 | 2014-05-14 | 鸿富锦精密工业(武汉)有限公司 | USB power supply circuit |
| CN104914969A (en) * | 2014-03-13 | 2015-09-16 | 鸿富锦精密工业(武汉)有限公司 | Connector port power supply circuit |
| CN105739658A (en) * | 2014-12-08 | 2016-07-06 | 鸿富锦精密工业(武汉)有限公司 | Interface power supply circuit |
| US9424886B1 (en) * | 2015-05-11 | 2016-08-23 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Hard disk device and temperature alarm circuit of hard disk device |
-
2018
- 2018-03-02 CN CN201810175426.9A patent/CN110221675A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515194A (en) * | 2008-02-21 | 2009-08-26 | 鸿富锦精密工业（深圳）有限公司 | Computer operating state converting method |
| CN102646176A (en) * | 2011-02-17 | 2012-08-22 | 宏碁股份有限公司 | Hard disk data protection system and protection method thereof |
| CN103473186A (en) * | 2012-06-07 | 2013-12-25 | 鸿富锦精密工业（深圳）有限公司 | SSD (solid state disc) data protection circuit |
| CN103793033A (en) * | 2012-10-29 | 2014-05-14 | 鸿富锦精密工业(武汉)有限公司 | USB power supply circuit |
| CN104914969A (en) * | 2014-03-13 | 2015-09-16 | 鸿富锦精密工业(武汉)有限公司 | Connector port power supply circuit |
| CN105739658A (en) * | 2014-12-08 | 2016-07-06 | 鸿富锦精密工业(武汉)有限公司 | Interface power supply circuit |
| US9424886B1 (en) * | 2015-05-11 | 2016-08-23 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Hard disk device and temperature alarm circuit of hard disk device |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190910 |
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| WD01 | Invention patent application deemed withdrawn after publication |