JPS6365172U - - Google Patents
Info
- Publication number
- JPS6365172U JPS6365172U JP16045186U JP16045186U JPS6365172U JP S6365172 U JPS6365172 U JP S6365172U JP 16045186 U JP16045186 U JP 16045186U JP 16045186 U JP16045186 U JP 16045186U JP S6365172 U JPS6365172 U JP S6365172U
- Authority
- JP
- Japan
- Prior art keywords
- voltage drop
- signal
- head
- magnetic disk
- amplifier
- 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 4
- 238000010586 diagram Methods 0.000 description 1
Description
第１図はこの考案の一実施例による磁気デイス
ク装置のヘツドの駆動制御回路を示す回路図、第
２図は磁気デイスク装置のヘツド駆動制御系の構
成を示す正面図、第３図は磁気デイスクの構造を
示す正面図である。
５……磁気ヘツド、８……ＤＣモータ、１０…
…スイツチ、１１……電圧低下検出回路、１２…
…増幅器、Ｓ……駆動指令信号、Ｖｅ……オート
ランデイングのための信号電圧、Ｅ……電圧低下
検出回路１１の出力信号。
FIG. 1 is a circuit diagram showing a head drive control circuit of a magnetic disk device according to an embodiment of the invention, FIG. 2 is a front view showing the configuration of a head drive control system of a magnetic disk device, and FIG. It is a front view showing the structure of. 5...Magnetic head, 8...DC motor, 10...
...Switch, 11... Voltage drop detection circuit, 12...
...Amplifier, S...Drive command signal, Ve...Signal voltage for auto-landing, E...Output signal of voltage drop detection circuit 11.
Claims (1)
位置決めを指示する駆動指令信号を増幅し前記駆
動手段に印加する増幅器とを有する磁気デイスク
装置の制御回路において、電源電圧の低下を検出
し電圧低下を示す信号を発生する電圧低下検出回
路と、前記電圧低下検出回路によつて電圧低下が
検出された場合に前記増幅器の入力信号を前記駆
動指令信号から、予め設定された領域へ前記ヘツ
ドを移動させる制御信号へ切り替える入力切替手
段とを具備したことを特徴とする磁気デイスク装
置の制御回路。 In a control circuit for a magnetic disk device having a drive means for moving a head and an amplifier for amplifying a drive command signal instructing positioning of the head and applying it to the drive means, a drop in power supply voltage is detected and the voltage drop is indicated. A voltage drop detection circuit that generates a signal, and control for moving the head to a preset area by changing the input signal of the amplifier from the drive command signal when a voltage drop is detected by the voltage drop detection circuit. 1. A control circuit for a magnetic disk device, comprising input switching means for switching to a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16045186U JPS6365172U (en) | 1986-10-20 | 1986-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16045186U JPS6365172U (en) | 1986-10-20 | 1986-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6365172U true JPS6365172U (en) | 1988-04-28 |
Family
ID=31085844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16045186U Pending JPS6365172U (en) | 1986-10-20 | 1986-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6365172U (en) |
-
1986
- 1986-10-20 JP JP16045186U patent/JPS6365172U/ja active Pending