JPS61224189A - Index pulse detecting device - Google Patents

Index pulse detecting device

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Publication number
JPS61224189A
JPS61224189A JP6537685A JP6537685A JPS61224189A JP S61224189 A JPS61224189 A JP S61224189A JP 6537685 A JP6537685 A JP 6537685A JP 6537685 A JP6537685 A JP 6537685A JP S61224189 A JPS61224189 A JP S61224189A
Authority
JP
Japan
Prior art keywords
circuit
index
motor
power
detection 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.)
Pending
Application number
JP6537685A
Other languages
Japanese (ja)
Inventor
Masao Uchiumi
内海　政雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6537685A priority Critical patent/JPS61224189A/en
Publication of JPS61224189A publication Critical patent/JPS61224189A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To save electric power by so arranging that the power source to an index detecting circuit is turned ON/OFF by the ON/OFF control of the power source of a spindle motor and the current its not supplied to the index detecting circuit during stand-by time. CONSTITUTION:At the same time that a motor ON/OFF circuit 2 is turned ON by a motor ON/OFF control signal 5, a power source ON/OFF circuit 7 for the index detecting circuit is turned ON and the power is supplied to the spindle motor 3 and the index detecting circuit 4. When the motor ON/OFF control signal 5 is an OFF command, the motor ON/OFF circuit 2 and the electric power ON/OFF circuit 7 for the index detecting circuit 4 is simultaneously turned OFF so that the current supply to the spindle motor 3 and the detecting circuit 4 is interrupted. Thus the current is not supplied during stand-by to the index detecting circuit 4 so that the electric power saving is attained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明はフレキシブルディスクドライブ装置における
インデックスパルス検出装置に係り、特にインデックス
パルス検出回路の省電力化を可能にするものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an index pulse detection device in a flexible disk drive device, and particularly enables power saving of an index pulse detection circuit.

〔従来の技術〕[Conventional technology]

従来におけるフレキシブルディスクドライブ装置のイン
デックスパルス検出装置を第２図につ−て説明する。A conventional index pulse detection device for a flexible disk drive device will be explained with reference to FIG.

この第２図において、ｌはスピンドルモータ及びインデ
ックス検出回路の電源１コはスピンドルモータへの電源
をＯＮ／ＯＦＦする回路、３は記憶媒体を回転させるス
ピンドルモータ、ダはインデックス検出回路であり、こ
のインデックス検出回路ダからはインデックスパルス６
が出力される。In FIG. 2, 1 is a power supply for the spindle motor and index detection circuit, 1 is a circuit that turns on/off the power to the spindle motor, 3 is a spindle motor that rotates the storage medium, and DA is an index detection circuit. Index pulse 6 is output from the index detection circuit.
is output.

ｊは上記モータＯＮ／ＯＦＦ回路−の〇Ｎ１０ＦＦ制御
信号で、図示しない外部の制御装置から出力されるもの
である。j is a 0N10FF control signal of the motor ON/OFF circuit, which is output from an external control device (not shown).

上記構成のインデックスパルス検出装置において）モー
タＯＮ／ＯＦＦ制御信号ｊにより、モータＯＮ／ＯＦＦ
回路−をＯＮさせると、スピンド／Ｉ／％−夕３へ電源
が供給される。スピンドルモータ３の回転により発生す
るインデックス信号はインデックス検出回路ダにより検
出され、インデックスパルス６として図示しなり制御装
置へ送られる。なおインデックス検出回路ダには電源が
常時供給されている。In the index pulse detection device with the above configuration), the motor ON/OFF is controlled by the motor ON/OFF control signal j.
When the circuit - is turned on, power is supplied to the spindo/I/%-3. An index signal generated by the rotation of the spindle motor 3 is detected by an index detection circuit and sent as an index pulse 6 to a control device (not shown). Note that power is constantly supplied to the index detection circuit.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記のような従来のインデックスパルス検出装置では、
スピンドルモータ３へ無通電のときインデックス信号が
発生していないにも拘らず、インデックス検出回路ダへ
は常時通電されないため、十分な省電力化が実現できな
いと云う問題があった。In the conventional index pulse detection device as mentioned above,
Although the index signal is not generated when the spindle motor 3 is not energized, the index detection circuit DA is not energized at all times, so there is a problem in that sufficient power saving cannot be achieved.

この発明は上記の問題点を解決するためになされたもの
で、スタンバイ時のインデックス検出回路への無通電化
Ｎ４ＪＩＩｌを可能にして省電力化を向上させなインデ
ックスパルス検出装置を提供することを目的とする。This invention was made to solve the above problems, and an object of the present invention is to provide an index pulse detection device that improves power saving by enabling non-energization of the index detection circuit during standby. shall be.

〔問題点を解決するための手段〕[Means for solving problems]

この発明にかかるインデックスパルス検出ｉｎは、スピ
ンドルモータの電源をＯＮ／ＯＦＦ制御するのに対応し
てインデックス検出回路への電源をＯＮ／ＯＦＦする回
路を設けたものである。The index pulse detection in according to the present invention is provided with a circuit that turns on/off the power to the index detection circuit in response to turning on/off the power to the spindle motor.

〔作用〕[Effect]

この発明においては、インデックス検出回路への電源が
、スピンドルモータの電１ＯＮ１０ＦＦ制御に対応して
制御される電源ＯＮ／ＯＦＦ回路により・ＯＮ／ＯＦＦ
制御されることになり−これによりスタンバイ時のイン
デックス検出回路への無通電化が可能にする。In this invention, the power to the index detection circuit is turned ON/OFF by a power ON/OFF circuit controlled in accordance with the 1ON/10FF control of the spindle motor.
This allows the index detection circuit to be de-energized during standby.

〔実施間〕[Performance period]

以下、この発明の一実施例を第１図について説明する。 An embodiment of the present invention will be described below with reference to FIG.

この第１図において、第２図と同一の部分には同一符号
を付してその説明を省略し、第２図と異なる部分を重点
に述べる。In FIG. 1, parts that are the same as those in FIG. 2 are given the same reference numerals, and their explanation will be omitted, and the parts that are different from FIG. 2 will be mainly described.

即ち１スタンバイ時はインデックス検出回路ダへの無通
電が可能になるよう＆Ｃ％電＃ｌとインデックス検出回
路ダとを結ぶラインにインデックス検出回路用電源のＯ
Ｎ／ＯＦＦ回路りを接続し１このＯＮ　／　ＯＦ　Ｆ回
路りはスピンドルモータＯＮ／ＯＦＦ回路−のＯＮ／Ｏ
ＦＦ制御信号３によって制御されるものである〇 次に上記のように構成されな本実施例の動作について説
明する。In other words, during standby, the power supply for the index detection circuit is connected to the line connecting the &C% power #l and the index detection circuit DA so that no power is applied to the index detection circuit DA.
Connect the N/OFF circuit and turn on/off the spindle motor ON/OFF circuit.
It is controlled by the FF control signal 3. Next, the operation of this embodiment configured as described above will be explained.

モータＯＮ／ＯＦＦ制御信号！によりモータＯＮ／ＯＦ
Ｆ回路−がＯＮされる°と同時に１インデックス検出回
路用電源ＯＮ／ＯＦＦ回路りもＯＮされ１スピンドルモ
ータ３及びインデックス検出回路参には電源ｌかも電力
が供給される。Motor ON/OFF control signal! Motor ON/OF
At the same time that the F circuit is turned on, the power supply ON/OFF circuit for the first index detection circuit is also turned on, and power is also supplied to the first spindle motor 3 and the index detection circuit from the power supply I.

スピンドルモータＪへの通電によシ、スピンドルモータ
３が回転し、その回転により発生するインデックス信号
はインデックス検出回路ダにより検出され為パルス化さ
れてインデックスパルス６として図示しな一制御装置へ
送られる。When the spindle motor J is energized, the spindle motor 3 rotates, and the index signal generated by the rotation is detected by the index detection circuit DA, converted into a pulse, and sent as an index pulse 6 to a control device (not shown). .

また１モ一タＯＮ／ＯＦＦ制御信号！がＯＦＦ指令にな
ると、モータＯＮ／ＯＦＦ回路コ及びインデックス検出
回路用の電源ＯＮ／ＯＦＦ回路７が同時にＯＦＦされ、
スピンドルモータ３及びインデックス検出回路ダへの通
電が断たれることになる。Also 1 motor ON/OFF control signal! When the OFF command is issued, the motor ON/OFF circuit 7 and the power supply ON/OFF circuit 7 for the index detection circuit are turned OFF at the same time.
Power to the spindle motor 3 and the index detection circuit DA is cut off.

従って、スタンバイ時はインデックス検出回路亭も無通
電となるため１省電力化を向上できる。Therefore, during standby, the index detection circuit is also de-energized, which improves power saving.

なお、上記実施例でＦｉ１インデックス検出回路用電源
のＯＮ／ＯＦＦ回路の制御信号に、モータＯＮ／ＯＦＦ
制御信号を使用した場合につ―て述ぺたが−これと類似
の制御信号を使用しても良い。In addition, in the above embodiment, the control signal of the ON/OFF circuit of the power supply for the Fi1 index detection circuit includes the motor ON/OFF signal.
Although the use of control signals has been described above, similar control signals may also be used.

また１上記実施例では１スピンドルモータへの通電と同
一タイミングでインデックス検出回路への通電をＱ　Ｎ
　／　ＯＦ　Ｆする場合を示したが１同一タイミングで
なくとも良−０ 〔発明の効果〕 以上のように１この発明によれば、インデックス検出回
路の電源をＯＮ／ＯＦＦ制御可能にして、スタンバイ時
のインデックス検出回路への無通電化を行うようにした
ので、より省電力化の装置を得ることができる。In addition, in the above embodiment, power is supplied to the index detection circuit at the same timing as power is supplied to the spindle motor.
/ OFF is shown, but 1 does not have to be at the same timing - 0 [Effects of the Invention] As described above, 1 According to the present invention, it is possible to control ON/OFF of the power supply of the index detection circuit, and the Since power is not supplied to the index detection circuit of the index detecting circuit, it is possible to obtain a device that saves even more power.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明にかかるインデックスパルス検出装置
の一例を示すブロック図、第２図は従来におけるインデ
ックスパルス検出装置のブロック図である。 ／・・・ＩＥ源、−・・・モータＯＮ／ＯＦＦ回路、３
・・・スピンドルモータ、ダ・・・インデックス検出回
路１Ｓ・・・モータＯＮ／ＯＦＦ制御信号−％６・・・
インデックスパルス、り・・・インデックス検出回路用
’ｌｌ渾ノＯＮ／ＯＦＦ回路。 なお、図中、同一符号は同−又は相当部分を示す。FIG. 1 is a block diagram showing an example of an index pulse detection device according to the present invention, and FIG. 2 is a block diagram of a conventional index pulse detection device. /...IE source, -...Motor ON/OFF circuit, 3
... Spindle motor, da... Index detection circuit 1S... Motor ON/OFF control signal -%6...
Index pulse, ri... 'll 澾ノ ON/OFF circuit for index detection circuit. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (2)

【特許請求の範囲】[Claims] （１）記憶媒体回転用のスピンドルモータと、このスピ
ンドルモータから発生するインデックス信号を検出する
インデックス検出回路と、上記スピンドルモータ及び上
記インデックス検出回路の駆動用電源と、外部からのモ
ータＯＮ／ＯＦＦ制御信号により上記スピンドルへの電
源をＯＮ／ＯＦＦする回路と、外部信号により上記イン
デツクス検出回路への電源をＯＮ／ＯＦＦする回路とを
備えたことを特徴とするインデックスパルス検出装置。(1) A spindle motor for rotating a storage medium, an index detection circuit that detects an index signal generated from this spindle motor, a power source for driving the spindle motor and the index detection circuit, and an external motor ON/OFF control. An index pulse detection device comprising: a circuit for turning on/off power to the spindle in response to a signal; and a circuit for turning on/off power to the index detection circuit in response to an external signal. （２）インデックス検出回路の電源ＯＮ／ＯＦＦ回路を
制御する外部信号が、モータＯＮ／ＯＦＦ制御信号であ
ることを特徴とする特許請求の範囲第１項記載のインデ
ックスパルス検出装置。(2) The index pulse detection device according to claim 1, wherein the external signal for controlling the power ON/OFF circuit of the index detection circuit is a motor ON/OFF control signal.
JP6537685A 1985-03-29 1985-03-29 Index pulse detecting device Pending JPS61224189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6537685A JPS61224189A (en) 1985-03-29 1985-03-29 Index pulse detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6537685A JPS61224189A (en) 1985-03-29 1985-03-29 Index pulse detecting device

Publications (1)

Publication Number Publication Date
JPS61224189A true JPS61224189A (en) 1986-10-04

Family

ID=13285184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6537685A Pending JPS61224189A (en) 1985-03-29 1985-03-29 Index pulse detecting device

Country Status (1)

Country Link
JP (1) JPS61224189A (en)

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