JPS6218865U - - Google Patents
Info
- Publication number
- JPS6218865U JPS6218865U JP11062185U JP11062185U JPS6218865U JP S6218865 U JPS6218865 U JP S6218865U JP 11062185 U JP11062185 U JP 11062185U JP 11062185 U JP11062185 U JP 11062185U JP S6218865 U JPS6218865 U JP S6218865U
- Authority
- JP
- Japan
- Prior art keywords
- drive motor
- disk drive
- rotation speed
- current
- motor
- 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
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図、第２図は同実施例における電源投入後の
消費電流の変化を示す図、第３図は従来の磁気デ
イスク装置のスピンドルモータの電源投入後の回
転速度の変化を示す図、第４図は従来の磁気デイ
スク装置の電源投入後の消費電流の変化を、第３
図に対応して示した図である。
１……スピンドルモータ（デイスク駆動用モー
タ）、２……スピンドルモータ駆動回路、３……
回転速度検出用センサ（回転速度検出手段）、４
……スピンドルモータ回転制御回路（回転速度制
御手段）、５……電流検出器（電流検出手段）、
６……ステツピングモータ（ヘツド送り用モータ
）、７……ステツピングモータ駆動回路、８……
制御回路（制御手段）。
Fig. 1 is a block diagram showing the configuration of an embodiment of this invention, Fig. 2 is a diagram showing the change in current consumption after power is turned on in the same embodiment, and Fig. 3 is a diagram of the spindle motor of a conventional magnetic disk device. Figure 4 shows the change in rotational speed after the power is turned on, and Figure 4 shows the change in current consumption after the power is turned on in a conventional magnetic disk device.
It is a figure shown corresponding to the figure. 1...Spindle motor (disk drive motor), 2...Spindle motor drive circuit, 3...
Rotation speed detection sensor (rotation speed detection means), 4
... spindle motor rotation control circuit (rotation speed control means), 5 ... current detector (current detection means),
6... Stepping motor (head feeding motor), 7... Stepping motor drive circuit, 8...
Control circuit (control means).
Claims (1)
と、磁気デイスクを回転駆動するデイスク駆動用
モータと、このデイスク駆動用モータの回転速度
を検出する回転速度検出手段と、前記回転速度検
出手段の検出結果に基づいて前記デイスク駆動用
モータの回転を制御し、前記デイスク駆動用モー
タの回転速度を所定の回転速度に維持する回転速
度制御手段とを有する磁気デイスク装置において
、前記デイスク駆動用モータによつて消費される
電流を検出する電流検出手段と、電源が投入され
ると同時に前記デイスク駆動用モータを起動する
と共に、前記デイスク駆動用モータの回転速度が
前記所定の回転速度に達する直前で生じる消費電
流の減少を前記電流検出手段によつて検知し、こ
の消費電流が減少した時点で前記ヘツド送り用モ
ータの駆動を開始する制御手段とを具備すること
を特徴とする磁気デイスク装置。 A head feeding motor that reciprocates the magnetic head, a disk drive motor that rotationally drives the magnetic disk, a rotational speed detection means that detects the rotational speed of the disk drive motor, and a detection result of the rotational speed detection means. and a rotation speed control means for controlling the rotation of the disk drive motor based on the rotation speed of the disk drive motor and maintaining the rotation speed of the disk drive motor at a predetermined rotation speed. a current detecting means for detecting the current generated by the disk driving motor at the same time as the power is turned on; A magnetic disk device characterized by comprising: a control means for detecting a decrease in the current consumption by the current detection means and starting driving the head feeding motor at the time when the current consumption decreases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11062185U JPS6218865U (en) | 1985-07-19 | 1985-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11062185U JPS6218865U (en) | 1985-07-19 | 1985-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6218865U true JPS6218865U (en) | 1987-02-04 |
Family
ID=30989789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11062185U Pending JPS6218865U (en) | 1985-07-19 | 1985-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH038185A (en) * | 1989-06-02 | 1991-01-16 | Fujitsu Ltd | Head positioning control method for disk device |
| JPH0744993A (en) * | 1993-07-29 | 1995-02-14 | Rohm Co Ltd | Driver circuit for optical disk and device for driving optical disk using it |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737776A (en) * | 1980-08-16 | 1982-03-02 | Pioneer Electronic Corp | Control system of record player |
| JPS57164473A (en) * | 1981-03-31 | 1982-10-09 | Fujitsu Ltd | Magnetic disk device |
-
1985
- 1985-07-19 JP JP11062185U patent/JPS6218865U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737776A (en) * | 1980-08-16 | 1982-03-02 | Pioneer Electronic Corp | Control system of record player |
| JPS57164473A (en) * | 1981-03-31 | 1982-10-09 | Fujitsu Ltd | Magnetic disk device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH038185A (en) * | 1989-06-02 | 1991-01-16 | Fujitsu Ltd | Head positioning control method for disk device |
| JPH0744993A (en) * | 1993-07-29 | 1995-02-14 | Rohm Co Ltd | Driver circuit for optical disk and device for driving optical disk using it |
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