JPS6396655U - - Google Patents
Info
- Publication number
- JPS6396655U JPS6396655U JP18974986U JP18974986U JPS6396655U JP S6396655 U JPS6396655 U JP S6396655U JP 18974986 U JP18974986 U JP 18974986U JP 18974986 U JP18974986 U JP 18974986U JP S6396655 U JPS6396655 U JP S6396655U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- drive
- power
- control circuit
- level
- 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
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Description
第１図は本考案のＦＤＤの一実施例を示す構成
図、第２図は従来のＦＤＤのステツプモータの駆
動系を示す図、第３図は従来のＦＤＤの制御回路
における制御のようすを示す信号波形図、第４図
は制御回路と駆動回路との間の駆動信号の伝達部
分の構成を示す図、第５図は本考案のＦＤＤの制
御回路における制御のようすを示す信号波形図、
第６図は本考案のＦＤＤの制御回路を実現する駆
動信号の制御プログラムを示す流れ図である。
１０……制御回路、１１……レベル検出手段、
１３，１４……出力設定手段、２……駆動回路、
３……ステツプモータ。
Fig. 1 is a configuration diagram showing an embodiment of the FDD of the present invention, Fig. 2 is a diagram showing a drive system of a step motor of a conventional FDD, and Fig. 3 is a diagram showing a state of control in a conventional FDD control circuit. A signal waveform diagram, FIG. 4 is a diagram showing the configuration of the drive signal transmission part between the control circuit and the drive circuit, and FIG. 5 is a signal waveform diagram showing the state of control in the control circuit of the FDD of the present invention.
FIG. 6 is a flowchart showing a drive signal control program that implements the FDD control circuit of the present invention. 10...control circuit, 11...level detection means,
13, 14... Output setting means, 2... Drive circuit,
3...Step motor.
Claims (1)
およびパワーオフ信号を生成する制御回路と、前
記所定の駆動信号およびパワーオフ信号を受信し
、パワーオフ信号がハイレベルである時のみ所定
の駆動信号に基づいて駆動電流をステツプモータ
に供給する駆動回路とを備えたフレキシブルデイ
スク駆動装置において、 前記制御回路に、 パワーオフ信号のレベルを検出する手段と、 パワーオフ信号のレベルがローレベルの場合は
駆動信号としてローレベルの信号を出力する手段
とを設けた ことを特徴とするフレキシブルデイスク駆動装
置。[Claims for Utility Model Registration] A control circuit that generates a predetermined drive signal and a power-off signal based on an external control signal, and a control circuit that receives the predetermined drive signal and power-off signal, and the power-off signal is at a high level. a flexible disk drive device comprising: a drive circuit that supplies a drive current to a step motor based on a predetermined drive signal only when the control circuit is provided with means for detecting the level of a power-off signal; A flexible disk drive device comprising means for outputting a low-level signal as a drive signal when the level of the flexible disk drive is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18974986U JPS6396655U (en) | 1986-12-11 | 1986-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18974986U JPS6396655U (en) | 1986-12-11 | 1986-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6396655U true JPS6396655U (en) | 1988-06-22 |
Family
ID=31142321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18974986U Pending JPS6396655U (en) | 1986-12-11 | 1986-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6396655U (en) |
-
1986
- 1986-12-11 JP JP18974986U patent/JPS6396655U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6396655U (en) | ||
| JPH0340623U (en) | ||
| JPS62101194U (en) | ||
| JPS62158668U (en) | ||
| JPS6394285U (en) | ||
| JPS5844602U (en) | Failure mode discrimination circuit | |
| JPS62169831U (en) | ||
| JPS63119211U (en) | ||
| JPS5911305U (en) | Automatic operation position setting device for chairs, etc. | |
| JPS61112427U (en) | ||
| JPS59195838U (en) | Switching element control circuit | |
| JPH0164746U (en) | ||
| JPS6269741U (en) | ||
| JPH0255335U (en) | ||
| JPS6082840U (en) | Sleep function selector | |
| JPS62188826U (en) | ||
| JPH0283700U (en) | ||
| JPS60112803U (en) | electronic control unit | |
| JPS6312919U (en) | ||
| JPH01105792U (en) | ||
| JPH03101035U (en) | ||
| JPH01120800U (en) | ||
| JPH01120258U (en) | ||
| JPS6155221U (en) | ||
| JPS61192152U (en) |