JPS63224078A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS63224078A JPS63224078A JP5854687A JP5854687A JPS63224078A JP S63224078 A JPS63224078 A JP S63224078A JP 5854687 A JP5854687 A JP 5854687A JP 5854687 A JP5854687 A JP 5854687A JP S63224078 A JPS63224078 A JP S63224078A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- power consumption
- signal
- circuit
- access
- 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.)
- Pending
Links
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、省電力化を考慮した磁気ディスク装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic disk device that takes into consideration power saving.
（従来の技術）
従来の磁気ディスクｆ装置にアクセスがなされていない
ときの省電力化については、対策が施こされていないの
が一般的である。(Prior Art) Generally, no measures have been taken to save power when a conventional magnetic disk f device is not being accessed.
（発明が解決しようとする問題点ン
したがって長時間に渡ってアクセスの必要がなく、待機
状態が続くような場合には通常動作時と同じ電力を消費
してｈるので発熱が大となるという問題があった。(Problem that the invention aims to solve) Therefore, if there is no need for access for a long time and the standby state continues, the same amount of power as during normal operation will be consumed and heat will be generated. There was a problem.
この対策として磁気ディスク装置に対するアクセスがな
いときに消費電力を減少させる動作を行う磁気ディスク
装置が存在していた。As a countermeasure to this problem, there are magnetic disk drives that operate to reduce power consumption when there is no access to the magnetic disk drive.
しかし、これらに採用される消費電力を減少させる手段
は磁気へラドアクチュエータの電源をＯＦＦするもので
あった。However, the means for reducing power consumption employed in these devices is to turn off the power to the magnetic heald actuator.
そのため磁気ディスク装置に対するアクセスは通常使用
時は頻繁に０Ｎ１０ＦＦされる友め再アクセス毎に磁気
ヘッド位置決め回復時間が必要となり、応答性が悪くな
るという欠点があつｆＦ−。Therefore, during normal use, access to the magnetic disk device is frequently 0N10FF, and each time the magnetic head is re-accessed, time is required to recover the position of the magnetic head, resulting in poor responsiveness.
（問題点を解決するための手段）
本発明の目的は上記欠点を解決するもので、頻繁に０Ｎ
１０ＦＦするアクセス時間に影響を与えるとと々〈％装
置の消費電流を減少させた磁気ディスク装置を提供する
ことにある。(Means for Solving the Problems) The object of the present invention is to solve the above-mentioned drawbacks.
The object of the present invention is to provide a magnetic disk device in which the current consumption of the device is reduced by 10% when it affects the access time for FF.
（問題点全解決する几めの手段）
前記目的を連取するために本発明による磁気ディスク装
置は磁気ディスク装置において、アクセスがないときに
出力されるインタフェース信号と、前記インタフェース
信号を受信する受信回路と、前記インタフェース信号を
受信し九ときに受信回路から出力される信号により磁気
ヘッドのアクチュエータの電流ヲ逍断ま几は減少させる
制御手段を設けて構成しである。(Elaborate Means for Solving All Problems) In order to achieve the above object, the magnetic disk device according to the present invention includes an interface signal that is output when there is no access, and a receiving circuit that receives the interface signal. The apparatus is further constructed by providing a control means for reducing the current cutoff of the actuator of the magnetic head by a signal outputted from the receiving circuit when the interface signal is received.
（実施例） 以下１図面を参照して本発明をさらに詳しく説明する。(Example) The present invention will be explained in more detail below with reference to one drawing.
第１図は本発明による磁気ディスクｆｃｆｔの実施例を
示すブロック図である。FIG. 1 is a block diagram showing an embodiment of a magnetic disk fcft according to the present invention.
図は本発明に直接関連する部分のみを記載してあｒ）、
磁気ヘッド位置決め制御回路３、磁気ヘッド位置決め駆
動回ｗＩ４．磁慨ヘッドアクチュエータ５、インタフェ
ース端子ｌおよび受信回路２を含んで構成されている。The figure shows only the parts directly related to the present invention.
Magnetic head positioning control circuit 3, magnetic head positioning drive circuit wI4. The magnetic head actuator 5 includes a magnetic head actuator 5, an interface terminal 1, and a receiving circuit 2.
インタフェース入力端子１には磁気ヘッドにアクセスが
ない場合に発生する信号が入力される。A signal generated when the magnetic head is not accessed is input to the interface input terminal 1.
この信号は受信口ｗ！２によって受信され、受信回路２
はその対応の信号全出力する。This signal is the receiving port lol! 2, the receiving circuit 2
outputs all the corresponding signals.
磁気ヘッド位置決め駆動回路４は磁気ヘッド位置決め制
御回路３の制御により磁気ヘッドの位置決め動作をして
いる。そして、受信回路２から信号を受信した場合（こ
のときは位置決め動作ハシていない）、アクチュエータ
５の消費電力を減少ま九は遮断させる制御を行なう。The magnetic head positioning drive circuit 4 performs a magnetic head positioning operation under the control of the magnetic head positioning control circuit 3. When a signal is received from the receiving circuit 2 (at this time, no positioning operation is being performed), control is performed to reduce or cut off the power consumption of the actuator 5.
上記動作により磁気ヘッドがアクセスされていない場合
は、待機中の磁気ヘッドの消費電力を抑制している。When the magnetic head is not being accessed by the above operation, the power consumption of the standby magnetic head is suppressed.
しかし、磁気ヘッドのアクチュエータの電源全オフしな
いので再アクセス時における磁気ヘッド位置決めの回復
時間を要することはなく、応答性に影響を与えることは
ない。However, since the power to the actuator of the magnetic head is not completely turned off, there is no need for recovery time for magnetic head positioning upon re-accessing, and responsiveness is not affected.
なお、上記実施例では出猟へラドアクチュエータの電流
のみを遮断する等の例について説明したが、同時にスピ
ンドルモータをも停止させるという応用ができることは
いうまでもない。In the above embodiment, an example has been described in which only the current of the rad actuator is cut off when going out for hunting, but it goes without saying that the present invention can also be applied to stopping the spindle motor at the same time.
（発明の効果）
以上、説明したように本発明は消費電力減少を指示する
インタフェース信号を受信する回路を設け、磁気ディス
ク装置が長時間に渡ってアクセスされない場合には、ア
クチュエータの電流ヲ逍断ま次は減少させることにより
消費電力を抑え、無駄な発熱を防ぐように構成されてい
る。(Effects of the Invention) As explained above, the present invention includes a circuit that receives an interface signal that instructs to reduce power consumption, and when the magnetic disk device is not accessed for a long time, the current of the actuator is stopped. The structure is designed to reduce power consumption and prevent unnecessary heat generation by reducing the power consumption.
したがって、頻繁にアクセスされるような使い方の場合
でもアクセスのｔび毎に回復時間を待つ必要はなく、良
好な応答を得ることができるという効果がある。Therefore, even in the case of frequent accesses, there is no need to wait for recovery time every time there is an access, and a good response can be obtained.
第１図は本発明による磁気ディスク装置の一実施例を示
すブロック図である。
ｌ・・・インタフェース入力端子
２・・・受信回路FIG. 1 is a block diagram showing an embodiment of a magnetic disk device according to the present invention. l...Interface input terminal 2...Receiving circuit
Claims (1)
されるインタフェース信号と、前記インタフェース信号
を受信する受信回路と、前記インタフェース信号を受信
したときに受信回路から出力される信号により磁気ヘッ
ドのアクチエータの電流を遮断または減少させる制御手
段を設けたことを特徴とする磁気ディスク装置。In a magnetic disk drive, current in the actuator of a magnetic head is controlled by an interface signal output when there is no access, a receiving circuit that receives the interface signal, and a signal output from the receiving circuit when the interface signal is received. A magnetic disk device characterized in that it is provided with a control means for shutting off or reducing the amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5854687A JPS63224078A (en) | 1987-03-13 | 1987-03-13 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5854687A JPS63224078A (en) | 1987-03-13 | 1987-03-13 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63224078A true JPS63224078A (en) | 1988-09-19 |
Family
ID=13087450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5854687A Pending JPS63224078A (en) | 1987-03-13 | 1987-03-13 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63224078A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452277A (en) * | 1993-12-30 | 1995-09-19 | International Business Machines Corporation | Adaptive system for optimizing disk drive power consumption |
| US5682273A (en) * | 1995-06-30 | 1997-10-28 | International Business Machines Corporation | Disk drive for portable computer with adaptive demand-driven power management |
| US5801894A (en) * | 1994-10-11 | 1998-09-01 | International Business Machines Corporation | Power-saving high performance data storage system |
| US5954820A (en) * | 1997-09-26 | 1999-09-21 | International Business Machines Corporation | Portable computer with adaptive demand-driven power management |
-
1987
- 1987-03-13 JP JP5854687A patent/JPS63224078A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452277A (en) * | 1993-12-30 | 1995-09-19 | International Business Machines Corporation | Adaptive system for optimizing disk drive power consumption |
| US5521896A (en) * | 1993-12-30 | 1996-05-28 | International Business Machines Corporation | Adaptive system for optimizing disk drive power consumption |
| US5544138A (en) * | 1993-12-30 | 1996-08-06 | International Business Machines Corporation | Adaptive system for optimizing disk drive power consumption |
| US5801894A (en) * | 1994-10-11 | 1998-09-01 | International Business Machines Corporation | Power-saving high performance data storage system |
| US5682273A (en) * | 1995-06-30 | 1997-10-28 | International Business Machines Corporation | Disk drive for portable computer with adaptive demand-driven power management |
| US5954820A (en) * | 1997-09-26 | 1999-09-21 | International Business Machines Corporation | Portable computer with adaptive demand-driven power management |
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