CN102213972B - Computer main board and SATA (serial advanced technology attachment) hard disk power supply circuit thereof - Google Patents
Computer main board and SATA (serial advanced technology attachment) hard disk power supply circuit thereof Download PDFInfo
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- CN102213972B CN102213972B CN 201010138387 CN201010138387A CN102213972B CN 102213972 B CN102213972 B CN 102213972B CN 201010138387 CN201010138387 CN 201010138387 CN 201010138387 A CN201010138387 A CN 201010138387A CN 102213972 B CN102213972 B CN 102213972B
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- electronic switch
- sata hard
- computer motherboard
- hard disk
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Abstract
The invention relates to a computer main board, which comprises a plurality of SATA (serial advanced technology attachment) hard disk interfaces used for connecting SATA hard disks and a plurality of SATA hard disk power supply circuits corresponding to the SATA hard disk interfaces one to one. Each SATA hard disk power supply circuit comprises a delay circuit as well as a first electronic switch, a second electronic switch and a third electronic switch. After the computer main board is turned on and a delay time passes, the delay circuit can control the turn-on of the first electronic switch and further control the turn-on of the second electronic switch and the third electronic switch, so that two voltage output terminals on the computer main board supply power for two power pins of the corresponding SATA hard disk interfaces respectively, and the delay times of the delay circuits of every two power supply circuits differ from each other. The computer main board and the SATA hard disk power supply circuits of the computer main board can be used for effectively preventing multiple SATA hard disks from simultaneously extracting high transient current.
Description
Technical field
The present invention relates to a kind of computer motherboard, the feed circuit of particularly powering for SATA (SerialAdvanced Technology Attachment, Serial Advanced Technology Attachment) hard disk on a kind of computer motherboard.
Background technology
At present, the SATA hard disk has been widely used in system that computer, server etc. use hard disks, and it has the advantages such as transmission speed is fast, hot-swappable.In a lot of systems, a plurality of SATA hard disks can be installed simultaneously, when the moment of system boot, all SATA hard disks can extract the large electric current of moment simultaneously, therefore might cause system in case of system halt.General solution is to utilize microprocessor to control to offer the power-on time of the power supply of SATA hard disk, to avoid all SATA hard disks to extract simultaneously the large electric current of moment, can cause cost excessive but utilize microprocessor to control, cause product competitiveness to reduce.
Summary of the invention
In view of foregoing, be necessary to provide a kind of computer motherboard and SATA hard disk feed circuit thereof, described feed circuit simplicity of design and cost are lower, can solve the instantaneous large-current problem simultaneously.
a kind of computer motherboard, comprise some SATA hard-disk interfaces for grafting SATA hard disk and some respectively with described SATA hard-disk interface feed circuit one to one, each feed circuit comprises a delay circuit and the first to the 3rd electronic switch, described the first electronic switch is controlled the keying of described second and third electronic switch, two power pins of corresponding SATA hard-disk interface are respectively by two voltage output ends on the described computer motherboard of described second and third electronic switch connection, described delay circuit is controlled described the first electronic switch conducting after in the start of described computer motherboard and through a time delay, and then control described second and third electronic switch conducting, so that two voltage output ends on described computer motherboard are respectively to two power pins power supplies of the SATA hard-disk interface of correspondence, and the time delay of the delay circuit of every two feed circuit is all not identical.
A kind of SATA hard disk feed circuit, be used to the SATA hard disk on a computer motherboard to power, described SATA hard disk feed circuit comprise a delay circuit and the first to the 3rd electronic switch, described delay circuit is controlled described the first electronic switch conducting after in the start of described computer motherboard and through a time delay, and then control described second and third electronic switch conducting, so that two voltage output ends on described computer motherboard are electrically connected to respectively two power pins of corresponding SATA hard-disk interface.
Compare prior art, computer motherboard of the present invention and SATA hard disk feed circuit thereof are used a delay circuit power-on time of each feed circuit are set, and control respectively described SATA hard disk reception power supply signal by described the first to the 3rd electronic switch, guaranteed that the SATA hard disk can not extract the large electric current of moment simultaneously.And the present invention does not control the SATA hard disk with expensive microprocessor, and is only to have used low-cost passive device to control, and can greatly save cost, and circuit is simple.
Description of drawings
In conjunction with better embodiment, the present invention is described in further detail with reference to the accompanying drawings:
Fig. 1 is the circuit diagram of computer motherboard better embodiment of the present invention.
The main element symbol description
SATA hard-disk interface 10
Resistance R 1-R2
Capacitor C 1-C4
Field effect transistor Q1-Q3
Embodiment
Please refer to Fig. 1, the better embodiment of computer motherboard 100 of the present invention comprise some SATA hard-disk interfaces 10 for grafting SATA hard disk and some respectively with described SATA hard-disk interface 10 feed circuit 20 one to one.The quantity of described SATA hard-disk interface 10 can design as required, and the quantity of described feed circuit 20 equates with the quantity of described SATA hard-disk interface 10.Described SATA hard-disk interface 10 and described feed circuit 20 are located on described motherboard 100, and particular location can be set as required.
The electric circuit constitute of each feed circuit 20 and annexation are all identical, below only describe the physical circuit of feed circuit 20 in detail.Described feed circuit 20 comprise two resistance R 1 and R2, four capacitor C 1-C4, one first electronic switch as a field effect transistor Q1, one second electronic switch as a field effect transistor Q2, one the 3rd electronic switch as a field effect transistor Q3.Each SATA hard-disk interface 10 includes first power pins+5VH SATA0 and second source pin+12VH SATA0, be respectively used to receive two voltage signals (as 5V and 12V voltage signal) that corresponding feed circuit 20 send, to offer connected SATA hard disk.
One end of described resistance R 1 is connected to one first voltage output end (being 5V in present embodiment) on computer motherboard 100, the other end of described resistance R 1 is by described capacitor C 1 ground connection, described resistance R 1 forms a delay circuit with described capacitor C 1, the time delay of the resistance value by changing described resistance R 1 and the described delay circuit of capacitance capable of regulating of described capacitor C 1.It is all not identical that the choosing of the capacitance of the resistance value of described resistance R 1 and described capacitor C 1 need be satisfied the time delay that is determined by described resistance R 1 and described capacitor C 1 in every two feed circuit 20.
The grid of described field effect transistor Q1 is connected to the node between described resistance R 1 and described capacitor C 1, the source ground of described field effect transistor Q1, the drain electrode of described field effect transistor Q1 is connected to the source electrode of a second voltage output terminal on computer motherboard 100 (being 12V in present embodiment) and described field effect transistor Q2 by described resistance R 2, the drain electrode of described field effect transistor Q1 also is connected to the grid of described two field effect transistor Q2 and Q3 and by described capacitor C 2 ground connection.The drain electrode of described field effect transistor Q2 is connected to the second source pin of corresponding SATA hard-disk interface 10+12VH SATA0 and by capacitor C 3 ground connection.The source electrode of described field effect transistor Q3 is connected to described the first voltage output end, and the drain electrode of described field effect transistor Q3 is connected to the first power pins of corresponding SATA hard-disk interface 10+5VH SATA0 and by described capacitor C 4 ground connection.
The below lifts an example the present invention's principle of work is described, as the present invention includes first to fourth feed circuit 20, and the forward voltage of establishing described field effect transistor Q1 is 0.8V.Relation such as the following table of the resistance value of the time delay in each feed circuit 20 (time when namely the voltage of the grid from system boot to described field effect transistor Q1 reaches 0.8V) and described resistance R 1 and the capacitance of described capacitor C 1:
| The resistance value of R1 | The capacitance of C1 | Time delay | |
| The |
10KΩ | 0.1μF | 147μS |
| The |
20KΩ | 0.1μF | 349μS |
| The |
30KΩ | 0.1μF | 523μS |
| The |
40.2KΩ | 0.1μF | 701μS |
When described computer motherboard 100 works on power, field effect transistor Q1 on described the first feed circuit 20 conducting after the 147 μ S of electric delay on computer motherboard 100, described two field effect transistor Q2 and Q3 conducting subsequently, corresponding SATA hard-disk interface 10 receives 12V and 5V voltage, and then controls coupled SATA hard disk and enter duty.In like manner, field effect transistor Q1 on described the second to the 4th feed circuit 20 is conducting after the 349 μ S of electric delay on computer motherboard 100,523 μ S, 701 μ S respectively, four SATA hard disks that so are connected with SATA hard-disk interface 10 can not extract the large electric current of moment simultaneously, can effectively guarantee system stability work.Because the present invention does not control the SATA hard disk with expensive microprocessor, and be only to have used low-cost passive device to control, can greatly save cost, and circuit be simple.
Claims (10)
1. computer motherboard, comprise some SATA hard-disk interfaces for grafting SATA hard disk and some respectively with described SATA hard-disk interface feed circuit one to one, each feed circuit comprises a delay circuit and the first to the 3rd electronic switch, described the first electronic switch is controlled the keying of described second and third electronic switch, two power pins of corresponding SATA hard-disk interface are respectively by two voltage output ends on the described computer motherboard of described second and third electronic switch connection, described delay circuit is controlled described the first electronic switch conducting after in the start of described computer motherboard and through a time delay, and then control described second and third electronic switch conducting, so that two voltage output ends on described computer motherboard are respectively to two power pins power supplies of the SATA hard-disk interface of correspondence, and the time delay of the delay circuit of every two feed circuit is all not identical.
2. computer motherboard as claimed in claim 1, it is characterized in that: described delay circuit comprises a resistance and an electric capacity, one end of described resistance is connected to a voltage output end of described computer motherboard, the other end of described resistance is by described capacity earth, and the node between described resistance and described electric capacity is connected to described the first electronic switch.
3. computer motherboard as claimed in claim 2, it is characterized in that: described the first electronic switch is a field effect transistor, the grid of described the first electronic switch is connected to the node between described resistance and described electric capacity, the source ground of described the first electronic switch, the drain electrode of described the first electronic switch are connected to described second and third electronic switch.
4. computer motherboard as claimed in claim 3, it is characterized in that: described the second electronic switch is a field effect transistor, the grid of described the second electronic switch is connected to the drain electrode of described the first electronic switch, the source electrode of described the second electronic switch connects a voltage output end of described computer motherboard, and the drain electrode of described the second electronic switch is connected to a power pins of corresponding SATA hard-disk interface.
5. computer motherboard as claimed in claim 4, it is characterized in that: described the 3rd electronic switch is a field effect transistor, the grid of described the 3rd electronic switch is connected to the drain electrode of described the first electronic switch, the source electrode of described the 3rd electronic switch connects another voltage output end of described computer motherboard, and the drain electrode of described the 3rd electronic switch is connected to another power pins of corresponding SATA hard-disk interface.
6. SATA hard disk feed circuit, be used to the SATA hard disk on a computer motherboard to power, described SATA hard disk feed circuit comprise a delay circuit and the first to the 3rd electronic switch, described the first electronic switch is controlled the keying of described second and third electronic switch, two power pins of corresponding SATA hard-disk interface are respectively by two voltage output ends on the described computer motherboard of described second and third electronic switch connection, described delay circuit is controlled described the first electronic switch conducting after in the start of described computer motherboard and through a time delay, and then control described second and third electronic switch conducting, so that two voltage output ends on described computer motherboard are respectively to two power pins power supplies of the SATA hard-disk interface of correspondence.
7. SATA hard disk feed circuit as claimed in claim 6, it is characterized in that: described delay circuit comprises a resistance and an electric capacity, one end of described resistance is connected to a voltage output end of described computer motherboard, the other end of described resistance is by described capacity earth, and the node between described resistance and described electric capacity is connected to described the first electronic switch.
8. SATA hard disk feed circuit as claimed in claim 7, it is characterized in that: described the first electronic switch is a field effect transistor, the grid of described the first electronic switch is connected to the node between described resistance and described electric capacity, the source ground of described the first electronic switch, the drain electrode of described the first electronic switch are connected to described second and third electronic switch.
9. SATA hard disk feed circuit as claimed in claim 8, it is characterized in that: described the second electronic switch is a field effect transistor, the grid of described the second electronic switch is connected to the drain electrode of described the first electronic switch, the source electrode of described the second electronic switch connects a voltage output end of described computer motherboard, and the drain electrode of described the second electronic switch is connected to a power pins of corresponding SATA hard-disk interface.
10. SATA hard disk feed circuit as claimed in claim 9, it is characterized in that: described the 3rd electronic switch is a field effect transistor, the grid of described the 3rd electronic switch is connected to the drain electrode of described the first electronic switch, the source electrode of described the 3rd electronic switch connects another voltage output end of described computer motherboard, and the drain electrode of described the 3rd electronic switch is connected to another power pins of corresponding SATA hard-disk interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010138387 CN102213972B (en) | 2010-04-02 | 2010-04-02 | Computer main board and SATA (serial advanced technology attachment) hard disk power supply circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010138387 CN102213972B (en) | 2010-04-02 | 2010-04-02 | Computer main board and SATA (serial advanced technology attachment) hard disk power supply circuit thereof |
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| Publication Number | Publication Date |
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| CN102213972A CN102213972A (en) | 2011-10-12 |
| CN102213972B true CN102213972B (en) | 2013-06-05 |
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| CN 201010138387 Expired - Fee Related CN102213972B (en) | 2010-04-02 | 2010-04-02 | Computer main board and SATA (serial advanced technology attachment) hard disk power supply circuit thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2582012A1 (en) * | 2011-10-13 | 2013-04-17 | Siemens Aktiengesellschaft | Method for operating an electric device |
| CN103077735A (en) * | 2011-10-25 | 2013-05-01 | 鸿富锦精密工业（深圳）有限公司 | Power supply protection circuit for hard disk |
| CN108109644B (en) * | 2013-08-12 | 2020-07-17 | 林希忠 | Heat exchange circuit and application method thereof |
| CN104407677A (en) * | 2014-10-29 | 2015-03-11 | 浪潮电子信息产业股份有限公司 | Current rectifying method for hard-disk protection |
| CN105354515A (en) * | 2015-12-09 | 2016-02-24 | 浪潮电子信息产业股份有限公司 | Hard disk backboard protection method |
| CN105959607A (en) * | 2015-12-30 | 2016-09-21 | 天津天地伟业数码科技有限公司 | Power supply low-power circuit of hard disk video device and design method thereof |
| CN108900087A (en) * | 2018-09-05 | 2018-11-27 | 郑州云海信息技术有限公司 | A kind of power supply circuit |
| CN111766933B (en) * | 2019-04-02 | 2023-08-15 | 鸿富锦精密工业(武汉)有限公司 | Power supply protection circuit and electronic device with same |
| CN112732056A (en) * | 2019-10-14 | 2021-04-30 | 贝里斯商基电力能科技有限公司台湾分公司 | Universal serial bus power supply device with delay function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7406614B2 (en) * | 2004-12-23 | 2008-07-29 | Microsemi Corp. - Analog Mixed Signal Group, Ltd. | Electronically implemented dynamic start up method for ports with inrush current limiting functionality |
| US7552351B2 (en) * | 2006-03-23 | 2009-06-23 | Inventec Corporation | System for controlling sequential startup of hard disks |
| CN101593016A (en) * | 2008-05-30 | 2009-12-02 | 鸿富锦精密工业（深圳）有限公司 | Power control circuit |
-
2010
- 2010-04-02 CN CN 201010138387 patent/CN102213972B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7406614B2 (en) * | 2004-12-23 | 2008-07-29 | Microsemi Corp. - Analog Mixed Signal Group, Ltd. | Electronically implemented dynamic start up method for ports with inrush current limiting functionality |
| US7552351B2 (en) * | 2006-03-23 | 2009-06-23 | Inventec Corporation | System for controlling sequential startup of hard disks |
| CN101593016A (en) * | 2008-05-30 | 2009-12-02 | 鸿富锦精密工业（深圳）有限公司 | Power control circuit |
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| CN102213972A (en) | 2011-10-12 |
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