JPS59183198U - Electric volume drive circuit - Google Patents

Electric volume drive circuit

Info

Publication number
JPS59183198U
JPS59183198U JP1983075910U JP7591083U JPS59183198U JP S59183198 U JPS59183198 U JP S59183198U JP 1983075910 U JP1983075910 U JP 1983075910U JP 7591083 U JP7591083 U JP 7591083U JP S59183198 U JPS59183198 U JP S59183198U
Authority
JP
Japan
Prior art keywords
drive circuit
electric volume
volume
resistance value
electric
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
Application number
JP1983075910U
Other languages
Japanese (ja)
Inventor
泰弘 植木
Original Assignee
日本ビクター株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本ビクター株式会社 filed Critical 日本ビクター株式会社
Priority to JP1983075910U priority Critical patent/JPS59183198U/en
Publication of JPS59183198U publication Critical patent/JPS59183198U/en
Pending legal-status Critical Current

Links

Landscapes

  • Adjustable Resistors (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案になる電動ボリウム駆動回路の一実施例
を示す回路図、第２図はデユーティ比とモータの速度の
関係を示す図、第３図は本考案になる電動ボリウム駆動
回路に供給するパルスの一例を示す図である。 ′　１・・・アップパルス入力端子、２・・・ダウンパ
ルス入力端子、Ｑ、、　Ｑ、・・・ＮＰＮ　トランジス
タ（第１、第２の制御手段）　、Ｒ１，Ｒ２・・・ベー
ス抵抗、Ｒ３゜Ｒ４・・・エミッタ抵抗、Ｍ・・・直流
モータ（駆動手段）、＋ｖＣＣ・−・・電源端子。Figure 1 is a circuit diagram showing an example of the electric volume drive circuit according to the present invention, Figure 2 is a diagram showing the relationship between duty ratio and motor speed, and Figure 3 is a circuit diagram showing an example of the electric volume drive circuit according to the present invention. FIG. 3 is a diagram showing an example of pulses to be supplied. ' 1...Up pulse input terminal, 2...Down pulse input terminal, Q,, Q,...NPN transistor (first and second control means), R1, R2...Base resistance, R3゜R4... Emitter resistance, M... DC motor (drive means), +vCC... Power supply terminal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電動ボリウムを駆動してこの電動ボリウムの抵抗値を可
変する駆動手段と、前記駆動手段により駆動されるボリ
ウムの抵抗値を供給されるパルス制御信号の周波数やデ
ユーティ比に応じた速度で可変増大方向に制御する第１
の制御手段と、前記駆動手段により駆動されるボリウム
の抵抗値を供給されるパルス制御信号の周波数やデユー
ティ比に応じた速度で可変減少方向に制御子る第２の制
御手段とより構成したことを特徴とする電動ボリウム駆
動回路。a driving means for driving an electric volume to vary the resistance value of the electric volume, and a direction in which the resistance value of the volume driven by the driving means is variably increased at a speed according to the frequency and duty ratio of a pulse control signal supplied. The first to control
and a second control means for controlling the resistance value of the volume driven by the drive means in a variable decreasing direction at a speed according to the frequency and duty ratio of the supplied pulse control signal. An electric volume drive circuit featuring:
JP1983075910U 1983-05-20 1983-05-20 Electric volume drive circuit Pending JPS59183198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983075910U JPS59183198U (en) 1983-05-20 1983-05-20 Electric volume drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983075910U JPS59183198U (en) 1983-05-20 1983-05-20 Electric volume drive circuit

Publications (1)

Publication Number Publication Date
JPS59183198U true JPS59183198U (en) 1984-12-06

Family

ID=30205970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983075910U Pending JPS59183198U (en) 1983-05-20 1983-05-20 Electric volume drive circuit

Country Status (1)

Country Link
JP (1) JPS59183198U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100096A (en) * 1980-01-12 1981-08-11 Tokyo Shibaura Electric Co Vibrationnproof device for hydroextractor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100096A (en) * 1980-01-12 1981-08-11 Tokyo Shibaura Electric Co Vibrationnproof device for hydroextractor

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