JPS623672U - - Google Patents
Info
- Publication number
- JPS623672U JPS623672U JP9540085U JP9540085U JPS623672U JP S623672 U JPS623672 U JP S623672U JP 9540085 U JP9540085 U JP 9540085U JP 9540085 U JP9540085 U JP 9540085U JP S623672 U JPS623672 U JP S623672U
- Authority
- JP
- Japan
- Prior art keywords
- drive
- magnetic disk
- disk device
- motor
- drive 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図は本考案の原理説明図、第２図、第３図
、第４図は本考案の一実施例の説明図で、第２図
が構成と機能を説明するブロツク図、第３図がモ
ータの動作状態図での動作説明図、第４図が動作
図での説明図を示す。
図中、１がモータ、１１はＤＥモータ、２が速
度検出手段、２１は速度の検出素子、２２は基準
信号発生回路、２３は回転数差判定回路、２４は
大小判定回路、３が速度制御手段、３１はパルス
幅決定回路、３２はパワーアンプ、４が可変する
手段、４１は駆動電圧切換回路、４２は電源を示
す。なお記号中、ωは角速度、Ｔはインターバル
（時間）、ＵＴはトルク、ｔは時間、Ｉは電流、
Ｖは電圧を表し、角度表現はラジアンである。ま
たサフイツクスは同元のもの同志を区別するため
のものである。
Fig. 1 is a diagram explaining the principle of the present invention, Figs. 2, 3, and 4 are explanatory diagrams of an embodiment of the present invention, Fig. 2 is a block diagram explaining the configuration and functions, and Fig. 3 4 is an explanatory diagram of the operation state diagram of the motor, and FIG. 4 is an explanatory diagram of the operation diagram. In the figure, 1 is a motor, 11 is a DE motor, 2 is a speed detection means, 21 is a speed detection element, 22 is a reference signal generation circuit, 23 is a rotation speed difference determination circuit, 24 is a magnitude determination circuit, and 3 is a speed control 31 is a pulse width determining circuit, 32 is a power amplifier, 4 is a variable means, 41 is a drive voltage switching circuit, and 42 is a power source. In the symbols, ω is angular velocity, T is interval (time), UT is torque, t is time, I is current,
V stands for voltage and the angular expression is in radians. Also, safitzkus is used to distinguish between things of the same origin.
Claims (1)
、所定回転速度の検出手段２と速度制御手段３を
有し、所定速度で磁気ヘツドを浮上させるととも
にコンタクトスタートストツプを行う磁気デイス
ク装置において、駆動モータに供給する電圧を可
変する手段４を有し、起動より所定回転速度に達
する間は定常駆動電圧より大きな電圧を引加する
如く構成したことを特徴とする磁気デイスク装置
。 (2) 上に駆動モータがＤＣモータであつて駆動
電源の最大電流が定常駆動時の起動電流より上に
設定されて成ることを特徴とする実用新案登録請
求の範囲第(1)項記載の磁気デイスク装置。[Claims for Utility Model Registration] (1) It has a drive motor 1 for rotating a magnetic disk, a predetermined rotational speed detection means 2, and a speed control means 3, which levitates the magnetic head at a predetermined speed and also controls a contact start stop. A magnetic disk device for performing magnetic disk drive, comprising means 4 for varying the voltage supplied to the drive motor, and configured to apply a voltage greater than a steady drive voltage from startup until a predetermined rotational speed is reached. disk device. (2) The utility model claimed in claim (1), wherein the drive motor is a DC motor and the maximum current of the drive power source is set higher than the starting current during steady drive. magnetic disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9540085U JPS623672U (en) | 1985-06-24 | 1985-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9540085U JPS623672U (en) | 1985-06-24 | 1985-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS623672U true JPS623672U (en) | 1987-01-10 |
Family
ID=30654506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9540085U Pending JPS623672U (en) | 1985-06-24 | 1985-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS623672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63226591A (en) * | 1987-03-16 | 1988-09-21 | 株式会社神戸製鋼所 | Method of cooling molded form by hot hydrostatic pressure device |
-
1985
- 1985-06-24 JP JP9540085U patent/JPS623672U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63226591A (en) * | 1987-03-16 | 1988-09-21 | 株式会社神戸製鋼所 | Method of cooling molded form by hot hydrostatic pressure device |
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