JPH03111194U - - Google Patents
Info
- Publication number
- JPH03111194U JPH03111194U JP1990020577U JP2057790U JPH03111194U JP H03111194 U JPH03111194 U JP H03111194U JP 1990020577 U JP1990020577 U JP 1990020577U JP 2057790 U JP2057790 U JP 2057790U JP H03111194 U JPH03111194 U JP H03111194U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- motor
- disk drive
- drive device
- 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
Landscapes
- Rotational Drive Of Disk (AREA)
- Control Of Electric Motors In General (AREA)
Description
第１図はこの考案の実施例であるフレキシブル
デイスクドライブ装置における磁気記録媒体の回
転系を示すブロツク図、第２図は従来のフレキシ
ブルデイスクドライブ装置における磁気記録媒体
の回転系を示すブロツク図である。
図において、１……基準発振器（ＯＳＣ）、２
……位相比較器、３……積分回路、４……電力回
路、５−１……モータ、５−２……ＦＧ、６……
波形整形回路、７……増幅回路（ＡＭＰ）、８…
…コンパレータである。なお、図中、同一符号は
同一、又は相当部分を示す。
FIG. 1 is a block diagram showing a rotation system of a magnetic recording medium in a flexible disk drive device which is an embodiment of this invention, and FIG. 2 is a block diagram showing a rotation system of a magnetic recording medium in a conventional flexible disk drive device. . In the figure, 1... reference oscillator (OSC), 2
...Phase comparator, 3... Integrating circuit, 4... Power circuit, 5-1... Motor, 5-2... FG, 6...
Waveform shaping circuit, 7...Amplification circuit (AMP), 8...
...It is a comparator. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
周波数の信号とモータに取り付けられたＦＧが発
生するＦＧ信号との位相を比較する位相比較器と
、この位相比較器の出力を積分する積分回路と、
この積分回路の出力に往じて上記モータを制御す
る電力回路から成るモータ制御回路を有するフレ
キシブルデイスクドライブ装置において、上記Ｆ
Ｇ信号を増幅する増幅回路と、この増幅回路の出
力を波形整形し、かつヒステリシス特性を持つコ
ンパレータから成る回路を備えたことを特徴とす
るフレキシブルデイスクドライブ装置。 a reference oscillator, a phase comparator that compares the phase of a reference frequency signal generated by the reference oscillator and an FG signal generated by an FG attached to the motor, and an integrating circuit that integrates the output of the phase comparator;
In a flexible disk drive device having a motor control circuit comprising a power circuit that controls the motor using the output of the integrating circuit, the F
A flexible disk drive device comprising: an amplifier circuit that amplifies a G signal; and a comparator that shapes the output of the amplifier circuit and has hysteresis characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990020577U JPH03111194U (en) | 1990-03-01 | 1990-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990020577U JPH03111194U (en) | 1990-03-01 | 1990-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03111194U true JPH03111194U (en) | 1991-11-14 |
Family
ID=31523668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990020577U Pending JPH03111194U (en) | 1990-03-01 | 1990-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03111194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12351977B2 (en) | 2019-03-15 | 2025-07-08 | Ember Technologies, Inc. | Actively heated or cooled garments or footwear |
-
1990
- 1990-03-01 JP JP1990020577U patent/JPH03111194U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12351977B2 (en) | 2019-03-15 | 2025-07-08 | Ember Technologies, Inc. | Actively heated or cooled garments or footwear |
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