JPH0332761U - - Google Patents
Info
- Publication number
- JPH0332761U JPH0332761U JP9067689U JP9067689U JPH0332761U JP H0332761 U JPH0332761 U JP H0332761U JP 9067689 U JP9067689 U JP 9067689U JP 9067689 U JP9067689 U JP 9067689U JP H0332761 U JPH0332761 U JP H0332761U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- power supply
- output voltage
- voltage
- predetermined value
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図はコンパクトデイスク２の平面図、第３図はモ
ータ３を制動するためのライン３０に導出される
信号の制動時間を示すグラフ、第４図は処理回路
１８の動作を説明するためのフローチヤートであ
る。
１……コンパクトデイスク再生装置、２……コ
ンパクトデイスク、３……モータ、４……ピツク
アツプ素子、５……ピツクアツプ素子制御回路、
６……半導体集積回路、７……モータ駆動回路、
８……バツテリ、９……切換えスイツチ、１６，
２４……安定化回路、１８……処理回路、１９…
…コンデンサ。
Fig. 1 is a block diagram of an embodiment of the present invention;
3 is a graph showing the braking time of the signal derived to the line 30 for braking the motor 3, and FIG. 4 is a flowchart for explaining the operation of the processing circuit 18. It is. DESCRIPTION OF SYMBOLS 1... Compact disc playback device, 2... Compact disc, 3... Motor, 4... Pick-up element, 5... Pick-up element control circuit,
6...Semiconductor integrated circuit, 7...Motor drive circuit,
8... Battery, 9... Changeover switch, 16,
24... Stabilization circuit, 18... Processing circuit, 19...
...capacitor.
Claims (1)
したことを検出する電圧検出手段と、 システム全体を管理するための情報をストアす
るランダムアクセスメモリを備え、コンデンサを
介する電力によつて電力付勢され、電圧検出手段
の出力に応答し、直流電源の出力電圧が前記予め
定める値以上であるときモータの駆動のために制
動を行い、直流電源の出力電圧が前記予め定める
値未満であるとき、モータの停止のための制動を
、コンデンサに充電されている電圧が前記メモリ
の記憶動作を保持する値以上に保たれるように、
短時間だけ行い、または全く行わないモータ制御
手段とを含むことを特徴とするコンパクトデイス
ク駆動用モータの制御装置。[Scope of claim for utility model registration] A motor that drives a compact disk, a DC power supply, a capacitor connected in parallel to the DC power supply, and a voltage detection device that detects when the output voltage of the DC power supply has fallen below a predetermined value. means, a random access memory for storing information for managing the entire system, powered by the power through the capacitor and responsive to the output of the voltage sensing means, the output voltage of the DC power supply being determined by said predetermined voltage. When the output voltage of the DC power supply is less than the predetermined value, braking is performed to drive the motor, and when the output voltage of the DC power source is less than the predetermined value, braking is performed to stop the motor. so that the memory behavior is kept above the value that preserves it.
1. A control device for a motor for driving a compact disk, comprising a motor control means that performs control only for a short time or does not perform control at all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9067689U JPH0332761U (en) | 1989-07-31 | 1989-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9067689U JPH0332761U (en) | 1989-07-31 | 1989-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332761U true JPH0332761U (en) | 1991-03-29 |
Family
ID=31640192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9067689U Pending JPH0332761U (en) | 1989-07-31 | 1989-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332761U (en) |
-
1989
- 1989-07-31 JP JP9067689U patent/JPH0332761U/ja active Pending
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