JPS628773U - - Google Patents
Info
- Publication number
- JPS628773U JPS628773U JP9866085U JP9866085U JPS628773U JP S628773 U JPS628773 U JP S628773U JP 9866085 U JP9866085 U JP 9866085U JP 9866085 U JP9866085 U JP 9866085U JP S628773 U JPS628773 U JP S628773U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- mode
- long
- time
- capstan 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
Description
第１図は本考案に係るキヤプスタンモータの帰
還制御回路の一実施例のブロツク図であり、第２
図は上記実施例におけるスイツチ制御の説明のた
めのタイミングチヤートである。第３図はキヤプ
スタンモータの特性の一例を示す特性図である。
１……システムコントロール部、２……誤差検
出回路、３……スイツチ、４……演算増幅器、５
……駆動回路、６……キヤプスタンモータ、７…
…回転検出器、Ｒ０，Ｒ１，Ｒ２……抵抗。
FIG. 1 is a block diagram of an embodiment of a feedback control circuit for a capstan motor according to the present invention, and FIG.
The figure is a timing chart for explaining the switch control in the above embodiment. FIG. 3 is a characteristic diagram showing an example of the characteristics of a capstan motor. 1... System control section, 2... Error detection circuit, 3... Switch, 4... Operational amplifier, 5
...Drive circuit, 6...Capstan motor, 7...
...Rotation detector, R0, R1, R2...Resistance.
Claims (1)
ープレコーダのキヤプスタンモータの帰還制御回
路において、 長時間モードにおけるループゲインと標準モー
ドにおけるループゲインとを切換えるスイツチと
、 上記二つのモードの切換えに応じて上記スイツ
チを制御する制御手段とを備え、 長時間モードにおけるスチール再生から通常再
生への遷移の際、上記制御手段により上記スイツ
チを所定の時間、標準モードに切換えるようにし
たことを特徴とするビデオテープレコーダのキヤ
プスタンモータの帰還制御回路。[Claim for Utility Model Registration] In a feedback control circuit for a capstan motor of a video tape recorder having a long-time mode and a standard mode, a switch for switching between a loop gain in the long-time mode and a loop gain in the standard mode; and control means for controlling the switch in response to switching between the two modes, and the control means switches the switch to the standard mode for a predetermined period of time when transitioning from still playback to normal playback in the long-time mode. A feedback control circuit for a capstan motor of a video tape recorder, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9866085U JPS628773U (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9866085U JPS628773U (en) | 1985-06-28 | 1985-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS628773U true JPS628773U (en) | 1987-01-20 |
Family
ID=30966804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9866085U Pending JPS628773U (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS628773U (en) |
-
1985
- 1985-06-28 JP JP9866085U patent/JPS628773U/ja active Pending
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