JPH01140665U - - Google Patents
Info
- Publication number
- JPH01140665U JPH01140665U JP3555988U JP3555988U JPH01140665U JP H01140665 U JPH01140665 U JP H01140665U JP 3555988 U JP3555988 U JP 3555988U JP 3555988 U JP3555988 U JP 3555988U JP H01140665 U JPH01140665 U JP H01140665U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- motor
- impedance element
- variable impedance
- controlled
- 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 3
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図及び第２図は本考案の一実施例を示す回
路構成図及び波形図、第３図は従来例を示す回路
構成図である。
１……オペアンプ、２……モータ、Ｑ……スイ
ツチングトランジスタ、Ｒ１３……抵抗（ゲイン
変更回路）。
1 and 2 are circuit configuration diagrams and waveform diagrams showing one embodiment of the present invention, and FIG. 3 is a circuit configuration diagram showing a conventional example. 1...Operation amplifier, 2...Motor, Q...Switching transistor, R13 ...Resistor (gain change circuit).
Claims (1)
るデイスクプレーヤのモータ制御回路において、
前記モータを駆動する信号により制御される可変
インピーダンス素子と、該可変インピーダンス素
子により切換制御され、前記制御回路のゲインを
変更するゲイン変更回路とを有することを特徴と
するデイスクプレーヤのモータ制御回路。 In a disc player motor control circuit that controls a disc drive motor using a control signal,
A motor control circuit for a disc player, comprising: a variable impedance element controlled by a signal for driving the motor; and a gain change circuit that is switched and controlled by the variable impedance element and changes the gain of the control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3555988U JPH01140665U (en) | 1988-03-17 | 1988-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3555988U JPH01140665U (en) | 1988-03-17 | 1988-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01140665U true JPH01140665U (en) | 1989-09-26 |
Family
ID=31262204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3555988U Pending JPH01140665U (en) | 1988-03-17 | 1988-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01140665U (en) |
-
1988
- 1988-03-17 JP JP3555988U patent/JPH01140665U/ja active Pending