CN102568548A - Hard disk power supply circuit - Google Patents
Hard disk power supply circuit Download PDFInfo
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- CN102568548A CN102568548A CN2010106174649A CN201010617464A CN102568548A CN 102568548 A CN102568548 A CN 102568548A CN 2010106174649 A CN2010106174649 A CN 2010106174649A CN 201010617464 A CN201010617464 A CN 201010617464A CN 102568548 A CN102568548 A CN 102568548A
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- hard disk
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- power supply
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Abstract
The invention relates to a hard disk power supply circuit, which is used for supplying power to a plurality of hard disks and comprises a complicated programmable logic device and a plurality of switch circuits, wherein the input end of the complicated programmable logic device is connected with a main board and is used for receiving hard disk state signals from the main board, and in addition, corresponding control signals are output at the corresponding output end according to the state of each hard disk for controlling the corresponding switch circuit, wherein each switch circuit is connected between one hard disk and a power supply and is used for connecting the hard disk with the power supply or disconnecting the hard disk from the power supply. The hard disk power supply circuit can switch off the power supply of a certain hard disk in time when the hard disk cannot normally work.
Description
Technical field
The present invention relates to a kind of hard disk feed circuit.
Background technology
Computer technology develops into today, because needed memory capacity such as software are increasing, so the user is also increasing to the requirement of the capacity of memory device.The capacity of single hard disk possibly be difficult to satisfy user's needs, two hard disks that arisen at the historic moment, or even the host computer of many hard disks at this moment.But, if wherein when hard disk is damaged or mistake occurs and can not work, host computer was still for should so bringing waste of electric energy from the hard disk power supply.In addition, when N hard disk starts running simultaneously, instantaneous peak current will reach N times of single hard disk startup electric current, and the common power feeding mechanism can't bear power consumption like this, very easily burns.Therefore, need use special power supply device instead, still, cost increases thereupon.
Summary of the invention
In view of above content, be necessary to provide a kind of hard disk feed circuit that can when hard disk corruptions, cut off the electricity supply automatically.
A kind of hard disk feed circuit; Be used to some hard disk power supplies; Said hard disk feed circuit comprise a CPLD and some on-off circuits, and the input end of said CPLD links to each other with a mainboard, are used to receive the disk state signal from mainboard; And in the output terminal of correspondence the corresponding control signal of state output according to each hard disk; With control corresponding switch circuit, wherein each on-off circuit is connected between a hard disk and the power supply, is used for connecting or breaking off said hard disk and power supply.
Above-mentioned hard disk feed circuit can realize breaking off when the hard disk cisco unity malfunction power supply of this hard disk through CPLD and on-off circuit.
Description of drawings
Fig. 1 is the circuit diagram of the preferred embodiments of hard disk feed circuit of the present invention.
The main element symbol description
First on-off circuit 15
First indicating circuit 18
First hard disk 20
Second hard disk 22
The first FET Q1
The second FET Q2
The first light emitting diode D1
The second light emitting diode D2
The 3rd light emitting diode D3
The 4th light emitting diode D4
Resistance R 1-R4
Voltage source V CC
Embodiment
Below in conjunction with accompanying drawing and preferred embodiments the present invention is described in further detail:
Please refer to Fig. 1, the preferred embodiments of hard disk feed circuit of the present invention comprise a CPLD (Complex Programmable Logic Device, CPLD) 12, some on-off circuits and some indicating circuits.Said hard disk feed circuit are used to a plurality of hard disk power supplies, and this embodiment is with two hard disks, and promptly first hard disk 20 and second hard disk 22 describe for example.At this moment, said on-off circuit then correspondence comprises first on-off circuit 15 and second switch circuit 16, and said indicating circuit then correspondence comprises first indicating circuit 18 and second indicating circuit 19.
The input end of said CPLD 12 links to each other with a mainboard 10, is used to receive the disk state signal from mainboard 10, and exports corresponding control signal at the output terminal of correspondence according to the state of each hard disk.In this embodiment; Said CPLD 12 comprises one first control signal output ends 1, one second control signal output ends 2, one first working state signal output terminal 3, one second working state signal output terminal 4, one first off working state signal output part 5 and one second off working state signal output part 6; Wherein, First control signal output ends 1, the first working state signal output terminal 3 and the first off working state signal output part 5 are formed first group of output terminal, and second control signal output ends 2, the second working state signal output terminal 4 and the second off working state signal output part 6 are formed second group of output terminal.Each group output terminal correspondence links to each other with an indicating circuit and an on-off circuit.
The first working state signal output terminal 3 and the first off working state signal output part 5 all link to each other with first indicating circuit 18, to control the duty of first indicating circuit 18.The second working state signal output terminal 4 and the second off working state signal output part 6 all link to each other with second indicating circuit 19, to control the duty of second indicating circuit 19.
First control signal output ends 1 links to each other with the control end of first on-off circuit 15, and second control signal output ends 2 links to each other with the control end of second switch circuit 16.The input end of first on-off circuit 15 and second switch circuit 16 all links to each other with a voltage source V CC, and output terminal then links to each other with first hard disk 20 and second hard disk 22 respectively.
Said first on-off circuit 15 comprises one first FET Q1, and its grid links to each other with said first control signal output ends 1, and drain electrode links to each other with said voltage source V CC, and source electrode links to each other with said first hard disk 20.Said second switch circuit 16 comprises one second FET Q2, and its grid links to each other with said second control signal output ends 2, and drain electrode links to each other with said voltage source V CC, and source electrode links to each other with said second hard disk 22.
First indicating circuit 18 comprises one first light emitting diode D1 and one second light emitting diode D2.The negative electrode of the said first light emitting diode D1 links to each other with the first working state signal output terminal 3; Anode links to each other with voltage source V CC through a resistance R 1; The negative electrode of the said second light emitting diode D2 links to each other with the first off working state signal output part 5, and anode links to each other with said voltage source V CC through another resistance R 2.Second indicating circuit 19 comprises one the 3rd light emitting diode D3 and one the 4th light emitting diode D4.The negative electrode of said the 3rd light emitting diode D3 links to each other with the second working state signal output terminal 4; Anode links to each other with voltage source V CC through a resistance R 3; The negative electrode of the said second light emitting diode D2 links to each other with the second off working state signal output part 6, and anode links to each other with said voltage source V CC through another resistance R 4.Shown in green when wherein said first light emitting diode D1 and the 3rd light emitting diode D3 are luminous, the second light emitting diode D2 and the 4th light emitting diode D4 are shown as ruddiness when luminous.
To the principle of work of above-mentioned hard disk feed circuit be described below:
During start, said CPLD 12 its two control signal output ends 1 of control and 2 equal output low level signals.This low level signal makes first and second FET Q1 and the Q2 in win on-off circuit 15 and the second switch circuit 16 all be in closed condition.Do not have electric current to export first hard disk 20 and second hard disk 22 to this moment, and above-mentioned two hard disks 20 and 22 all are not activated.
After postponing for first unit interval, its first control signal output ends, 1 output high level signal of said CPLD 12 controls, second control signal output ends 2 is the output low level signal still.This high level signal makes the FET Q1 conducting of winning, and this low level signal makes the second FET Q2 still be in closed condition.This moment, voltage source V CC exported first hard disk 20 to.After obtaining electric current, first hard disk 20 begins to start.
After postponing for second unit interval, said CPLD 12 its first control signal output ends 1 of control and second control signal output ends 2 are all exported high level signal.This high level signal makes the FET Q1 that wins keep conducting, and makes the second FET Q2 conducting.This moment, voltage source V CC exported second hard disk 22 to.After obtaining electric current, second hard disk 22 promptly begins to start.Cause excessive power consumption in the time of so can avoiding first hard disk 20 and second hard disk 22 to start simultaneously.
After first hard disk 20 and second hard disk 22 all started, said mainboard 10 read the state and the corresponding control signal of output of each hard disk.
When first hard disk, 20 operate as normal; Said mainboard 10 outputs one first control signal is given CPLD 12; 1 corresponding output high level signal of first control signal output ends of said CPLD 12; The first working state signal output terminal, 3 output low level signals, 5 output of first off working state signal output part high level signal.At this moment, the said first FET Q1 keeps conducting, and said first hard disk 20 works on.Simultaneously, the said first light emitting diode D1 must establish beginning work by cable, and it is in proper working order with prompting first hard disk 20 this moment to send green glow.
When first hard disk, 20 cisco unity malfunctions; Said mainboard 10 outputs one second control signal is given CPLD 12; 1 corresponding output low level signal of first control signal output ends of said CPLD 12; The first working state signal output terminal, 3 output high level signals, 5 output low level signals of the first off working state signal output part.At this moment, the said first FET Q1 breaks off, to stop to be 20 power supplies of said first hard disk.Simultaneously, the said second light emitting diode D2 must establish beginning work by cable, and sends ruddiness with prompting first hard disk, 20 cisco unity malfunctions this moment.
When second hard disk, 22 operate as normal; Said mainboard 10 outputs one the 3rd control signal is given CPLD 12; 2 corresponding output high level signals of second control signal output ends of said CPLD 12; The second working state signal output terminal, 4 output low level signals, 6 output of second off working state signal output part high level signal.At this moment, the said second FET Q2 keeps conducting, and said second hard disk 22 works on.Simultaneously, said the 3rd light emitting diode D3 must establish beginning work by cable, and it is in proper working order with prompting second hard disk 22 this moment to send green glow.
When second hard disk, 22 cisco unity malfunctions; Said mainboard 10 outputs one the 4th control signal is given CPLD 12; 2 corresponding output low level signals of second control signal output ends of said CPLD 12; The second working state signal output terminal, 3 output high level signals, 5 output low level signals of the second off working state signal output part.At this moment, the said second FET Q2 breaks off, to stop to be 22 power supplies of said second hard disk.Simultaneously, said the 4th light emitting diode D4 must establish beginning work by cable, and sends ruddiness with prompting second hard disk, 22 cisco unity malfunctions this moment.
Above-mentioned hard disk feed circuit can realize breaking off when the hard disk cisco unity malfunction power supply of this hard disk through CPLD 12; Also can make a plurality of hard disk sequence startings simultaneously, thereby avoid a plurality of hard disks to start the too high starting current that is brought simultaneously.
Can find out from principle of work; The said first FET Q1 and the second FET Q2 play the effect of electronic switch in circuit; Therefore; In other embodiments, the said first FET Q1 and the second FET Q2 also can adopt the FET of other types or triode to replace, even other electronic components with electronic switch function all can.Such as; When utilizing a triode to replace the said first FET Q1, the base stage of said triode corresponding to the collector of the grid of the said first FET Q1, triode corresponding to the emitter of the drain electrode of the first FET Q1, triode source electrode corresponding to the said first FET Q1.This electronic switch comprises one first end, one second end and one the 3rd end, and said first end links to each other with first control signal output ends 1 of CPLD 12, and second end links to each other with said voltage source V CC, and the 3rd end links to each other with said first hard disk 20.
Claims (7)
1. hard disk feed circuit; Be used to some hard disk power supplies; Said hard disk feed circuit comprise a CPLD and some on-off circuits, and the input end of said CPLD links to each other with a mainboard, are used to receive the disk state signal from mainboard; And in the output terminal of correspondence the corresponding control signal of state output according to each hard disk; With control corresponding switch circuit, wherein each on-off circuit is connected between a hard disk and the power supply, is used for connecting or breaking off said hard disk and power supply.
2. hard disk feed circuit as claimed in claim 1 is characterized in that: when start, said its output terminal of CPLD control is all exported one first switching signal, so that some on-off circuits all break off; After postponing for first unit interval; Said its first output terminal of CPLD control is exported a second switch signal; Other output terminals are then still exported first switching signal, so that the first on-off circuit conducting is to start one first hard disk, other on-off circuits then still break off.
3. hard disk feed circuit as claimed in claim 2; It is characterized in that: after postponing for second unit interval; Said CPLD its first output terminal of control and second output terminal are all exported the second switch signal; Other output terminals are then still exported first switching signal, so that first and second on-off circuit conducting is to start one second hard disk, other on-off circuits then still break off.
4. hard disk feed circuit as claimed in claim 1; It is characterized in that: each on-off circuit comprises an electronic switch, and first end of said electronic switch links to each other with said CPLD, with the receiving key signal; Second end links to each other with said power supply, and the 3rd end links to each other with a hard disk.
5. hard disk feed circuit as claimed in claim 4 is characterized in that: said electronic switch is a FET, and the grid of said FET, drain electrode and source electrode be first end, second end and the 3rd end of corresponding said electronic switch respectively.
6. hard disk feed circuit as claimed in claim 1; It is characterized in that: said hard disk feed circuit also comprise some indicating circuits; Be used to receive the corresponding indicating circuit of control signal control that CPLD is exported, to show the duty of corresponding hard disk.
7. hard disk feed circuit as claimed in claim 6; It is characterized in that: each indicating circuit comprises one first light emitting diode and one second light emitting diode; The negative electrode correspondence of said first and second light emitting diode links to each other with the output terminal of said CPLD; Anode all links to each other with said power supply, sends the light of different colours when wherein said first light emitting diode and the work of second light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106174649A CN102568548A (en) | 2010-12-31 | 2010-12-31 | Hard disk power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106174649A CN102568548A (en) | 2010-12-31 | 2010-12-31 | Hard disk power supply circuit |
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| Publication Number | Publication Date |
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| CN102568548A true CN102568548A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106174649A Pending CN102568548A (en) | 2010-12-31 | 2010-12-31 | Hard disk power supply circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885686A (en) * | 2017-12-01 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of system and method for controlling single hard disk to restart using BMC |
| CN109710323A (en) * | 2018-12-28 | 2019-05-03 | 联想(北京)有限公司 | A kind of control method and electronic equipment |
| CN111734668A (en) * | 2020-06-19 | 2020-10-02 | 山东海量信息技术研究院 | Server fan control method, device, equipment and readable storage medium |
| CN113253825A (en) * | 2020-02-11 | 2021-08-13 | 盛令章 | Centralized hard disk power supply abnormity protection system |
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| CN2655309Y (en) * | 2003-07-16 | 2004-11-10 | 华为技术有限公司 | Power supply time sequence controlling circuit |
| CN1627412A (en) * | 2003-12-13 | 2005-06-15 | 鸿富锦精密工业（深圳）有限公司 | Control circuit and method for starting up multiple hard disks with multiple backboards in sequence |
| CN1627411A (en) * | 2003-12-09 | 2005-06-15 | 鸿富锦精密工业（深圳）有限公司 | Control circuit and method for starting up multiple hard disks with multiple backboards in sequence |
| CN201302715Y (en) * | 2008-11-11 | 2009-09-02 | 英业达科技有限公司 | Device for computers |
| CN101751320A (en) * | 2008-12-04 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Computer hardware device state indicating circuit |
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2010
- 2010-12-31 CN CN2010106174649A patent/CN102568548A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655309Y (en) * | 2003-07-16 | 2004-11-10 | 华为技术有限公司 | Power supply time sequence controlling circuit |
| CN1627411A (en) * | 2003-12-09 | 2005-06-15 | 鸿富锦精密工业（深圳）有限公司 | Control circuit and method for starting up multiple hard disks with multiple backboards in sequence |
| CN1627412A (en) * | 2003-12-13 | 2005-06-15 | 鸿富锦精密工业（深圳）有限公司 | Control circuit and method for starting up multiple hard disks with multiple backboards in sequence |
| CN201302715Y (en) * | 2008-11-11 | 2009-09-02 | 英业达科技有限公司 | Device for computers |
| CN101751320A (en) * | 2008-12-04 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Computer hardware device state indicating circuit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885686A (en) * | 2017-12-01 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of system and method for controlling single hard disk to restart using BMC |
| CN107885686B (en) * | 2017-12-01 | 2020-10-23 | 苏州浪潮智能科技有限公司 | System and method for controlling restart of single hard disk by adopting BMC |
| CN109710323A (en) * | 2018-12-28 | 2019-05-03 | 联想(北京)有限公司 | A kind of control method and electronic equipment |
| CN113253825A (en) * | 2020-02-11 | 2021-08-13 | 盛令章 | Centralized hard disk power supply abnormity protection system |
| CN111734668A (en) * | 2020-06-19 | 2020-10-02 | 山东海量信息技术研究院 | Server fan control method, device, equipment and readable storage medium |
| CN111734668B (en) * | 2020-06-19 | 2022-04-22 | 山东海量信息技术研究院 | Server fan control method, device, equipment and readable storage medium |
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Application publication date: 20120711 |