JPS6324766U - - Google Patents
Info
- Publication number
- JPS6324766U JPS6324766U JP11580386U JP11580386U JPS6324766U JP S6324766 U JPS6324766 U JP S6324766U JP 11580386 U JP11580386 U JP 11580386U JP 11580386 U JP11580386 U JP 11580386U JP S6324766 U JPS6324766 U JP S6324766U
- Authority
- JP
- Japan
- Prior art keywords
- track
- sensor
- circuit
- transistor
- disk drive
- 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
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 230000005284 excitation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図は本考案の実施例を示す主要回路ブロツ
ク図。第２図は、第１図におけるトラツクＯＯセ
ンサおよび記憶回路の具体的回路図。第３図は、
第１図および第２図における各部の信号のタイム
・チヤート図。
１０１……ＡＮＤ回路、１０２……一安定発振
回路、１０３……トランジスタ、１０４……トラ
ツクＯＯセンサ、１０５……記憶回路、２０１…
…発光ダイオード、２０２……フオト・トランジ
スタ、２０３……遅延回路。
FIG. 1 is a main circuit block diagram showing an embodiment of the present invention. FIG. 2 is a specific circuit diagram of the track OO sensor and memory circuit in FIG. 1. Figure 3 shows
FIG. 2 is a time chart of signals of each part in FIGS. 1 and 2. FIG. 101...AND circuit, 102...monostable oscillation circuit, 103...transistor, 104...truck OO sensor, 105...memory circuit, 201...
...Light emitting diode, 202...Photo transistor, 203...Delay circuit.
Claims (1)
を行なうフロツピー・デイスク・ドライブにおい
て、ステツプ・モータの励磁相φＡ，φＢおよび
信号の論理積をとる手段１０
１、前記論理積の結果により動作する一安定発振
回路１０２、前記一安定発振回路の出力により制
御され、トラツクＯＯセンサ１０４への電力供給
を行なうトランジスタ１０３、前記トラツクＯＯ
センサの出力を前記論理積の結果に同期して取り
込み、記憶し、信号として出力す
る記憶回路１０５から構成されるトラツクＯＯ検
出回路を有することを特徴とするフロツピー・デ
イスク・ドライブ。 In a floppy disk drive that performs track OO detection using a track OO sensor, means 10 for calculating the AND of excitation phases φA and φB of a step motor and a signal.
1. A monostable oscillation circuit 102 that operates according to the result of the AND, a transistor 103 that is controlled by the output of the monostable oscillation circuit and supplies power to the track OO sensor 104, and a transistor 103 that supplies power to the track OO sensor 104.
A floppy disk drive characterized by having a track OO detection circuit comprising a storage circuit 105 which captures the output of the sensor in synchronization with the result of the AND, stores it, and outputs it as a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11580386U JPS6324766U (en) | 1986-07-28 | 1986-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11580386U JPS6324766U (en) | 1986-07-28 | 1986-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6324766U true JPS6324766U (en) | 1988-02-18 |
Family
ID=30999800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11580386U Pending JPS6324766U (en) | 1986-07-28 | 1986-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110860A (en) * | 1988-10-20 | 1990-04-24 | Matsushita Electric Ind Co Ltd | floppy disk drive |
-
1986
- 1986-07-28 JP JP11580386U patent/JPS6324766U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02110860A (en) * | 1988-10-20 | 1990-04-24 | Matsushita Electric Ind Co Ltd | floppy disk drive |