JPS62164650U - - Google Patents
Info
- Publication number
- JPS62164650U JPS62164650U JP5215486U JP5215486U JPS62164650U JP S62164650 U JPS62164650 U JP S62164650U JP 5215486 U JP5215486 U JP 5215486U JP 5215486 U JP5215486 U JP 5215486U JP S62164650 U JPS62164650 U JP S62164650U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- supply voltage
- phase compensation
- fluctuations
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来のモータ駆動回路を示すブロツク図
である。
１…位相又は速度エラー信号、２…位相補償回
路、１４ａ〜１４ｃ…モータの固定子コイル、１
７…電源変動検出回路。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing a conventional motor drive circuit. DESCRIPTION OF SYMBOLS 1... Phase or speed error signal, 2... Phase compensation circuit, 14a-14c... Motor stator coil, 1
7...Power supply fluctuation detection circuit.
Claims (1)
補償回路と、該位相補償回路出力信号によりデイ
スクモータを駆動する駆動回路と、交流電源から
直流電圧を作成する電源電圧回路とを有して成る
ビデオデイスクプレーヤのモータ駆動回路におい
て、上記電源電圧回路出力の変動分を検出する検
出回路を設け、該検出回路出力信号を位相補償回
路に加算することにより電源電圧の変動によるデ
イスクモータの回転数変動を防止するようにした
ことを特徴とするビデオデイスクプレーヤのモー
タ駆動回路。 A video disc comprising a phase compensation circuit that amplifies and processes a phase or speed error signal, a drive circuit that drives a disc motor using the output signal of the phase compensation circuit, and a power supply voltage circuit that creates a DC voltage from an AC power supply. In the player's motor drive circuit, a detection circuit is provided to detect fluctuations in the power supply voltage circuit output, and the detection circuit output signal is added to a phase compensation circuit to prevent disc motor rotation speed fluctuations due to power supply voltage fluctuations. A motor drive circuit for a video disc player, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5215486U JPS62164650U (en) | 1986-04-09 | 1986-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5215486U JPS62164650U (en) | 1986-04-09 | 1986-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62164650U true JPS62164650U (en) | 1987-10-19 |
Family
ID=30877073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5215486U Pending JPS62164650U (en) | 1986-04-09 | 1986-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62164650U (en) |
-
1986
- 1986-04-09 JP JP5215486U patent/JPS62164650U/ja active Pending
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