JPS6428569U - - Google Patents
Info
- Publication number
- JPS6428569U JPS6428569U JP12106187U JP12106187U JPS6428569U JP S6428569 U JPS6428569 U JP S6428569U JP 12106187 U JP12106187 U JP 12106187U JP 12106187 U JP12106187 U JP 12106187U JP S6428569 U JPS6428569 U JP S6428569U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- output
- power amplifier
- input
- linear 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
従来の光デイスク装置のリニアモータ位置決め回
路の回路図である。
１…位相保証回路、２…増幅器、３…増幅器、
４…アナログスイツチ又はリレー、５…パワーア
ンプ、６…リニアモータ、Ａ…位置信号、Ｇ…選
択信号。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional linear motor positioning circuit of an optical disk device. 1... Phase guarantee circuit, 2... Amplifier, 3... Amplifier,
4... Analog switch or relay, 5... Power amplifier, 6... Linear motor, A... Position signal, G... Selection signal.
Claims (1)
このリニアモータの位置信号を入力する位相補償
回路と、この位相補償回路の出力を入力する第１
の増幅器およびこの第１の増幅器よりゲインが小
さい第２の増幅器と、この第１または第２の増幅
器の出力をスイツチを介して入力し前記リニアモ
ータを駆動するためのパワーアンプとを含み、前
記光ヘツドを位置決めするときは前記第１の増幅
器の出力を前記スイツチを介して前記パワーアン
プに入力し、前記光ヘツドを光デイスクのトラツ
クに追従させるときは前記第２の増幅器の出力を
前記スイツチを介して前記パワーアンプに入力す
ることを特徴とする光デイスク装置。 a linear motor for moving the optical head;
A phase compensation circuit that inputs the position signal of this linear motor, and a first circuit that inputs the output of this phase compensation circuit.
an amplifier, a second amplifier having a smaller gain than the first amplifier, and a power amplifier for inputting the output of the first or second amplifier via a switch to drive the linear motor, When positioning the optical head, the output of the first amplifier is input to the power amplifier via the switch, and when the optical head is to follow the track of the optical disk, the output of the second amplifier is input to the power amplifier via the switch. An optical disk device characterized in that an input signal is input to the power amplifier via the power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12106187U JPS6428569U (en) | 1987-08-07 | 1987-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12106187U JPS6428569U (en) | 1987-08-07 | 1987-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428569U true JPS6428569U (en) | 1989-02-20 |
Family
ID=31367730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12106187U Pending JPS6428569U (en) | 1987-08-07 | 1987-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428569U (en) |
-
1987
- 1987-08-07 JP JP12106187U patent/JPS6428569U/ja active Pending