JPS648260U - - Google Patents
Info
- Publication number
- JPS648260U JPS648260U JP10081687U JP10081687U JPS648260U JP S648260 U JPS648260 U JP S648260U JP 10081687 U JP10081687 U JP 10081687U JP 10081687 U JP10081687 U JP 10081687U JP S648260 U JPS648260 U JP S648260U
- Authority
- JP
- Japan
- Prior art keywords
- head
- output
- target track
- speed
- track position
- 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.)
- Granted
Links
- 230000004886 head movement Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図はこの考案装置の一例の系統図、第２図
はその説明のためのタイミングチヤート、第３図
はその動作の説明のための図、第４図は従来装置
の説明のための図である。
１はデイスク、２はヘツド、４は駆動モータ、
５はフオトエンコーダ、１１は速度／位置信号形
成部、１２は周波数電圧変換回路、１３は比較器
、１５はコントロールユニツト、２３はスイツチ
回路、２４は積分器、２５はウインドーコンパレ
ータである。
Fig. 1 is a system diagram of an example of this invented device, Fig. 2 is a timing chart for explaining it, Fig. 3 is a diagram for explaining its operation, and Fig. 4 is a diagram for explaining the conventional device. It is. 1 is a disk, 2 is a head, 4 is a drive motor,
5 is a photo encoder, 11 is a speed/position signal forming section, 12 is a frequency-voltage conversion circuit, 13 is a comparator, 15 is a control unit, 23 is a switch circuit, 24 is an integrator, and 25 is a window comparator.
Claims (1)
ク位置との差に応じて形成される速度基準信号と
、現在ヘツド移動速度に対応した信号とを比較す
る比較器の出力に応じて、トラツクを横切る方向
にヘツドを移動させるヘツド駆動用モータを速度
制御し、上記ヘツドを目標トラツク位置に移動さ
せるようにする装置であつて、 上記比較器の出力が所定の値以内になつたこと
を検出する検出手段と、 この検出手段の出力に応じて上記ヘツド駆動用
モータの速度制御系内に積分器を挿入して低域ゲ
インを上げるようにする切換手段とを具備してな
るデイスク装置のヘツド移動速度制御装置。[Claims for Utility Model Registration] Output of a comparator that compares a speed reference signal formed according to the difference between the current position of the head on the disk and the target track position with a signal corresponding to the current head movement speed. The device controls the speed of a head drive motor that moves the head in a direction across the track in accordance with the target track position, and moves the head to a target track position, the output of the comparator being within a predetermined value. and a switching means for inserting an integrator into the speed control system of the head drive motor to increase the low-frequency gain according to the output of the detection means. A head movement speed control device for a disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987100816U JPH0728623Y2 (en) | 1987-06-30 | 1987-06-30 | Head movement speed control device for disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987100816U JPH0728623Y2 (en) | 1987-06-30 | 1987-06-30 | Head movement speed control device for disk device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648260U true JPS648260U (en) | 1989-01-18 |
| JPH0728623Y2 JPH0728623Y2 (en) | 1995-06-28 |
Family
ID=31329236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987100816U Expired - Lifetime JPH0728623Y2 (en) | 1987-06-30 | 1987-06-30 | Head movement speed control device for disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728623Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100679A (en) * | 1986-10-16 | 1988-05-02 | Fujitsu Ltd | Speed control system |
-
1987
- 1987-06-30 JP JP1987100816U patent/JPH0728623Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100679A (en) * | 1986-10-16 | 1988-05-02 | Fujitsu Ltd | Speed control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0728623Y2 (en) | 1995-06-28 |
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