CN201153336Y - Control circuit of hard disk drive operating status indicating lamp - Google Patents
Control circuit of hard disk drive operating status indicating lamp Download PDFInfo
- Publication number
- CN201153336Y CN201153336Y CNU2007200589914U CN200720058991U CN201153336Y CN 201153336 Y CN201153336 Y CN 201153336Y CN U2007200589914 U CNU2007200589914 U CN U2007200589914U CN 200720058991 U CN200720058991 U CN 200720058991U CN 201153336 Y CN201153336 Y CN 201153336Y
- Authority
- CN
- China
- Prior art keywords
- transistor
- hard disk
- disk drive
- indicator light
- control circuit
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a control circuit for an HDD working state indicator light, which comprises a detecting unit, a drain of a first transistor, a collector of a second transistor and a gate of a third transistor, an indicator light and a control unit, wherein, the detecting unit is used for detecting the type of the HDD connected with the detecting unit; the drain of the first transistor, the collector of the second transistor and the gate of the third transistor are together connected to a power supply; the source of the first transistor and the base of the second transistor are together connected with the power supply; the gate of the first transistor and the emitter of the second transistor are both connected with the output end of the detecting unit; the cathode of the indicator light is connected with the drain of the third transistor and the anode is connected with the power supply; the output end of the control unit is connected with the source of the first transistor; the output end of the control unit transmits a corresponding control signal to control the indicator light according to the type and the working state of the HDD detected by the detecting unit. The control circuit for the HDD working state indicator light adopts a synclastic control signal to control the working state indicator light of SAS or SATA HDD, and has simple structure and low cost.
Description
Technical field
The utility model relates to a kind of control circuit, especially relates to a kind of control hard disk drive (HardDisk, HD) control circuit of working station indicator.
Background technology
Along with the fast development of information industry, on the one hand, the kind of information equipment is more and more, and information is also more and more thereupon, and on the other hand, the storage facilities of stored information information has also obtained fast development, to be suitable for the demand of information industry fast development.
With regard to hard disk, several years ago, SATA (Serial ATA, serial ATA) hard disk drive is represented high power capacity and low cost, has superior performance and reliability, becomes the preferred of people.Yet, along with the development of technology, for the higher mainstream server of bandwidth requirement and enterprise-level storage provide the demand of required high-performance, high scalability and reliability, SAS (Serial Attached SCSI, Serial Attached SCSI (SAS)) hard disk drive has appearred.Even, in current all multiple network equipments,, adopt the combination of SAS/SATA hard disk drive, so that storage system had not only had the high-performance of SAS hard disk drive but also possessed the cost advantage of SATA hard disk drive such as server.
Yet, in the server of the combination storage system that adopts the SAS/SATA hard disk drive, to the control signal of the working station indicator (being a LED lamp) of hard disk drive for oppositely: when hard disk drive is in (IDLE) state following time free time, the indicator light perseverance is bright, at this moment, if current use is the SAS hard disk drive, then described indicator light is sent and be low level control signal, and current use is the SATA hard disk drive, then described indicator light is sent control signal into high level; When hard disk drive is in use (ACTIVE) state following time, the indicator light flicker, at this moment, if current use is the SAS hard disk drive, then described indicator light is sent control signal into high level, and current use is the SATA hard disk drive, then described indicator light is sent to be low level control signal.
In view of existing server reverse to the control signal of the working station indicator of SAS/SATA hard disk drive, if the client need be provided with server to the control signal of the working station indicator of SAS/SATA hard disk drive in the same way the time, existing server can't satisfy this demand for control, therefore, be necessary to develop a kind of effective control circuit simple in structure, lower-cost, when server being used SAS or SATA hard disk drive, can adopt control signal in the same way that its working station indicator is controlled with realization.
The utility model content
In view of this, the purpose of this utility model is to disclose a kind of control circuit of hard disk drive working station indicator, to realize adopting control signal in the same way, the working station indicator of control SAS or SATA hard disk drive.
The utility model adopts following technical scheme to realize: a kind of control circuit of hard disk drive working station indicator comprises: detecting unit is used to detect the type of the hard disk drive that is attached thereto; First, second, third transistor, the drain of this first transistor, the collector electrode of transistor seconds and the 3rd transistorized gate are connected to a power supply jointly, the source electrode of the first transistor and the base stage of transistor seconds are connected to described power supply jointly, and the emitter of the gate of the first transistor and transistor seconds all is connected with the output of described detecting unit; Indicator light, its negative electrode is connected with the 3rd transistorized drain, and anode connects described power supply; Control unit, its output is connected with the source electrode of the first transistor, and according to the hard disk drive type of described detecting unit detection and the operating state of hard disk drive, the corresponding control signal of its output output is controlled described indicator light.
More excellent, described detecting unit, when being the SAS hard disk drive, output is output as the signal of electronegative potential.
More excellent, the described first and the 3rd transistor is a nmos pass transistor, described transistor seconds is N type three polar bodys.
More excellent, described indicator light is a light-emitting diode.
More excellent, the gate of described the first transistor, the base stage of transistor seconds and the 3rd transistorized gate are connected in series a resistor respectively.
Control circuit of the present utility model has simple in structure, lower-cost advantage, can effectively realize adopting control signal in the same way, the working station indicator of control SAS or SATA hard disk drive.
For making the purpose of this utility model, structural feature and function thereof there are further understanding, cooperate diagram to be described in detail as follows now:
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of the disclosed control circuit of the utility model.
Embodiment
The utility model is intended to propose a kind of control circuit of hard disk drive working station indicator, to realize adopting control signal in the same way, the working station indicator of control SAS or SATA hard disk drive.
That is to say, both can use the SAS hard disk drive at one, but memory device that again can the SATA hard disk drive (such as, the webserver) in: when hard disk drive is in (IDLE) state following time free time, no matter current use is SAS hard disk drive or SATA hard disk drive, all described indicator light is sent the control signal that is all low level or high level, the indicator light of control hard disk drive is permanent bright; When hard disk drive is in use (ACTIVE) state following time, then control described indicator light flicker.
Please refer to shown in Figure 1ly, is the structural representation of a preferred embodiment of the disclosed control circuit of the utility model.
This control circuit comprises: detecting unit 110; Control unit 120; First, second, third transistor 131,132 and 133; Indicator light 150.Wherein, described detecting unit 110 is used to detect the type of the hard disk drive that is attached thereto, and when being the SAS hard disk drive, output is output as the signal of electronegative potential; The collector electrode (C) of the drain of described the first transistor 131 (D), transistor seconds 132 and the gate (G) of the 3rd transistor 133 are connected to a power supply jointly, the source electrode of the first transistor 131 (S) is connected to described power supply jointly with the base stage (B) of transistor seconds 132, and the emitter (E) of the gate of the first transistor 131 and transistor seconds 132 all is connected with the output of described detecting unit 110; The negative electrode of described indicator light 150 is connected with the 3rd transistorized drain, and anode connects described power supply; The output of described control unit 120 is connected with the source electrode of the first transistor 131, and according to the hard disk drive type of described detecting unit 110 detections and the operating state of hard disk drive, the corresponding control signal of its output output is controlled described indicator light 150.
Wherein, described the first, the 3rd transistor 131 and 133 is a nmos pass transistor, and described transistor seconds 132 is N type three polar bodys; Described indicator light 150 is a light-emitting diode; And the gate of described the first transistor 13l is connected in series with first resistor 141, and the gate of described transistor seconds 132 is connected in series with second resistor 142; The gate of described the 3rd transistor 133 is connected in series with the 3rd resistor 143, and described power supply is 5.2 volts a DC power supply.
The following specifically describes the operation principle of the control circuit of present embodiment.
Have difference on SAS hard disk drive and the SATA hard disk drive structure, therefore, also have difference on data/control interface, comparatively common is that the data/control interface of SATA hard disk drive is generally the interface of 7 pin bits (pin); And the data/control interface of SAS hard disk drive has gone out to have beyond 7 identical pin positions, also have one and be the signal pins bit of mini_SAS, therefore, described detecting unit 110 can be judged the type of current hard disk drive by detecting the signal of this pin bit.
When the type that detects currentfixeddiskdrive when described detecting unit 110 is the SAS hard disk drive, output output low level (the being equal to ground connection) signal of described detecting unit 110.At this moment, the gate of described the first transistor 131 and the voltage Vgs=0 volt between the source electrode are so described the first transistor 131 ends; And because the emitter of transistor seconds 132 is connected with the output of described detecting unit 110, so the emission of transistor seconds 132 electronegative potential very.
Situation one, when described control unit 120 its outputs of control are output as the control signal of electronegative potential, at this moment, the base stage of described transistor seconds 132 also is an electronegative potential, described transistor seconds 132 not conductings, make the gate of described the 3rd transistor 133 and voltage Vgs＞0 between the source electrode and conducting, spur described indicator light 150 conductings thus, promptly described indicator light 150 is lighted.
Situation two, when described control unit 120 its outputs of control are output as the control signal of high potential, at this moment, the base stage of described transistor seconds 132 is high potential and conducting, make the gate of described the 3rd transistor 133 and voltage Vgs＜0 between the source electrode and not conducting, so the two ends of described indicator light 150 are high potential and not conducting, promptly described indicator light 150 is not luminous.
When the type of seeing currentfixeddiskdrive when described detecting unit 110 was the SATA hard disk drive, the output of described detecting unit 110 was unsettled, is similar to the output high potential.At this moment, described the first transistor 131 conductings; And the emitter of transistor seconds 132 is connected with the output of described detecting unit 110, so the emitter of transistor seconds 132 is in suspension joint (floating) state and ends.
Situation one, when described control unit 120 its outputs of control are output as the control signal of electronegative potential, at this moment, the 133 not conductings of described the 3rd transistor are so the two ends of described indicator light 150 are high potential and not conducting.
Situation two, when described control unit 120 its outputs of control are output as the control signal of high potential, at this moment, described the 3rd transistor 133 conductings, and spur described indicator light 150 conductings
In addition, what need supplementary notes is, when the type that detects currentfixeddiskdrive when described detecting unit 110 was the SAS hard disk drive, the control signal of described control unit 120 outputs can be reversed, to realize control signal in the same way.
Therefore, in the present embodiment, no matter hard disk drive still be the SATA type for the SAS type, all can simply, effectively control when hard disk drive and be in the free time during (IDLE) state, described indicator light 150 perseverances are bright.And be in use (ACTIVE) state following time when hard disk drive, only the control signal that need constantly be changed by described control unit 120 outputs then can effectively be controlled described indicator light 150 flickers, at this enumeration no longer.
The above person only is the utility model preferred embodiment wherein, is not to be used for limiting practical range of the present utility model; Be that all equalizations of being done according to the utility model claim change and modification, be all the utility model claim and contain.
Claims (4)
1, a kind of control circuit of hard disk drive working station indicator is characterized in that, comprising:
Detecting unit is used to detect the type of the hard disk drive that is attached thereto;
First, second, third transistor, the drain of this first transistor, the collector electrode of transistor seconds and the 3rd transistorized gate are connected to a power supply jointly, the source electrode of the first transistor and the base stage of transistor seconds are connected to described power supply jointly, and the emitter of the gate of the first transistor and transistor seconds all is connected with the output of described detecting unit;
Indicator light, its negative electrode is connected with the 3rd transistorized drain, and anode connects described power supply;
Control unit, its output is connected with the source electrode of the first transistor, and according to the hard disk drive type of described detecting unit detection and the operating state of hard disk drive, the corresponding control signal of its output output is controlled described indicator light.
2, the control circuit of hard disk drive working station indicator according to claim 1 is characterized in that: the described first and the 3rd transistor is a nmos pass transistor, and described transistor seconds is N type three polar bodys.
3, the control circuit of hard disk drive working station indicator according to claim 1 is characterized in that: described indicator light is a light-emitting diode.
4, the control circuit of hard disk drive working station indicator according to claim 1 is characterized in that: the gate of described the first transistor, the base stage of transistor seconds and the 3rd transistorized gate are connected in series a resistor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200589914U CN201153336Y (en) | 2007-10-31 | 2007-10-31 | Control circuit of hard disk drive operating status indicating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200589914U CN201153336Y (en) | 2007-10-31 | 2007-10-31 | Control circuit of hard disk drive operating status indicating lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201153336Y true CN201153336Y (en) | 2008-11-19 |
Family
ID=40129011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200589914U Expired - Fee Related CN201153336Y (en) | 2007-10-31 | 2007-10-31 | Control circuit of hard disk drive operating status indicating lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201153336Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929766A (en) * | 2012-10-24 | 2013-02-13 | 浙江宇视科技有限公司 | Method, device and storage system for turning on state indicator lamps of hard disks |
| CN103279412A (en) * | 2013-06-18 | 2013-09-04 | 浪潮电子信息产业股份有限公司 | Method for solving problem of normally-off state of SATA (serial advanced technology attachment) hard disk power supply indicator lamp of SAS backboard |
| CN104516802A (en) * | 2015-01-08 | 2015-04-15 | 浪潮(北京)电子信息产业有限公司 | Method and system for indicating statuses of different types of hard disks |
| CN107463521A (en) * | 2016-06-06 | 2017-12-12 | 瑞昱半导体股份有限公司 | Solid state hard disc control device and method |
| CN109062773A (en) * | 2018-08-03 | 2018-12-21 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| US10776288B2 (en) | 2016-06-01 | 2020-09-15 | Raymx Microelectronics Corp. | Apparatus for adapting interface type of peripheral device and method thereof |
| US10909047B2 (en) | 2016-06-01 | 2021-02-02 | Raymx Microelectronics Corp. | Flash memory control device capable of detecting type of interface and method thereof |
-
2007
- 2007-10-31 CN CNU2007200589914U patent/CN201153336Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929766A (en) * | 2012-10-24 | 2013-02-13 | 浙江宇视科技有限公司 | Method, device and storage system for turning on state indicator lamps of hard disks |
| CN102929766B (en) * | 2012-10-24 | 2016-03-23 | 浙江宇视科技有限公司 | A kind of method, device and storage system realizing disk state lighting |
| CN103279412A (en) * | 2013-06-18 | 2013-09-04 | 浪潮电子信息产业股份有限公司 | Method for solving problem of normally-off state of SATA (serial advanced technology attachment) hard disk power supply indicator lamp of SAS backboard |
| CN104516802A (en) * | 2015-01-08 | 2015-04-15 | 浪潮(北京)电子信息产业有限公司 | Method and system for indicating statuses of different types of hard disks |
| US10776288B2 (en) | 2016-06-01 | 2020-09-15 | Raymx Microelectronics Corp. | Apparatus for adapting interface type of peripheral device and method thereof |
| US10817437B2 (en) | 2016-06-01 | 2020-10-27 | Raymx Microelectronics Corp. | Solid state drive control device and method |
| US10909047B2 (en) | 2016-06-01 | 2021-02-02 | Raymx Microelectronics Corp. | Flash memory control device capable of detecting type of interface and method thereof |
| CN107463521A (en) * | 2016-06-06 | 2017-12-12 | 瑞昱半导体股份有限公司 | Solid state hard disc control device and method |
| CN107463521B (en) * | 2016-06-06 | 2020-09-01 | 合肥沛睿微电子股份有限公司 | Solid state disk control device and method |
| CN109062773A (en) * | 2018-08-03 | 2018-12-21 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201153336Y (en) | Control circuit of hard disk drive operating status indicating lamp | |
| CN101246659A (en) | Display screen capable of self-checking trouble point and method thereof | |
| CN101470172A (en) | CMOS battery voltage test device | |
| CN100590677C (en) | Heat sensitive resistance, photosensitive resistance, force sensitive resistance, humidity sensitive resistance, magnetism sensitive resistance variability feature demonstrator | |
| CN206340160U (en) | A kind of state-signal collection loop of tape light | |
| CN202309677U (en) | An input circuit capable of being compatible with the polarity of different signal levels | |
| CN100490597C (en) | Drive circuit of power supply indicating lamp | |
| TWI613932B (en) | Driving module and light source system having the driving module | |
| TW200537290A (en) | A multi-state identification device of a blade type server system | |
| CN201583940U (en) | Device for indicating running state of network and network terminal | |
| TW201310231A (en) | Hard disk drive indication light circuit | |
| CN104022563A (en) | Dual-battery-pack switching circuit used for electric vehicles | |
| CN104159358A (en) | Electric torch drive circuit and mobile terminal | |
| CN101860999A (en) | Circuit for preventing reverse connection of power supply, LED lamp circuit and LED lamp | |
| CN201017606Y (en) | Display screen capable of self detecting trouble point | |
| CN1124493C (en) | Chargeable cell test loop contact resistance monitoring method | |
| CN103531144A (en) | Wireless control full color LED display screen | |
| US9996141B2 (en) | Storage device and electronic device using the same | |
| CN103458552B (en) | A kind of LED lamp and start control circuit thereof | |
| CN102402885A (en) | Instrument for demonstrating characteristics of commonly used light sensitive element | |
| CN201781660U (en) | Television indicator light driver circuit | |
| CN103311961A (en) | Charger indicating lamp circuit | |
| CN101231422A (en) | Backlight tube protective circuit | |
| CN206075814U (en) | With the portable hard drive near magnetic field automatic early-warning | |
| CN102419924A (en) | Humidity sensing characteristic demonstration instrument of organic polymer humidity sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20121031 |