JPS5996916U - variable gain amplifier circuit - Google Patents

variable gain amplifier circuit

Info

Publication number
JPS5996916U
JPS5996916U JP19380382U JP19380382U JPS5996916U JP S5996916 U JPS5996916 U JP S5996916U JP 19380382 U JP19380382 U JP 19380382U JP 19380382 U JP19380382 U JP 19380382U JP S5996916 U JPS5996916 U JP S5996916U
Authority
JP
Japan
Prior art keywords
amplifier
variable gain
amplifier circuit
gain amplifier
variable resistor
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
JP19380382U
Other languages
Japanese (ja)
Inventor
章 菊池
Original Assignee
パイオニア株式会社
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 パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP19380382U priority Critical patent/JPS5996916U/en
Publication of JPS5996916U publication Critical patent/JPS5996916U/en
Pending legal-status Critical Current

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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) [Abstract] 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ａ、　　ｂ、　　ｃは、従来の利得可変回路、第
２図は、本発明の一実施例による利得可変回路、第３図
は、その動作利得を示す図である。 １、　４．　５・・・・・・ボリューム、２・・・・・
・増幅器、３・・・・・・スイッチ、Ｒｏ−Ｒ３・・・
・・・抵抗。1a, b, and c are conventional variable gain circuits, FIG. 2 is a variable gain circuit according to an embodiment of the present invention, and FIG. 3 is a diagram showing the operating gain thereof. 1, 4. 5...Volume, 2...
・Amplifier, 3...Switch, Ro-R3...
···resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 増幅器の出力側に接続された第１の可変抵抗と、前記増
幅器の負帰還回路に設けられた第２の可変抵抗とを備え
、前記第１および第２の可変抵抗を連動して、可変抵抗
の抵抗値により、増幅器の全、体の利得を可変するよう
にしたことを特徴とする可変利得増幅回路。a first variable resistor connected to the output side of an amplifier; and a second variable resistor provided in a negative feedback circuit of the amplifier; A variable gain amplifier circuit characterized in that the total gain of the amplifier is varied by the resistance value of the amplifier.
JP19380382U 1982-12-21 1982-12-21 variable gain amplifier circuit Pending JPS5996916U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19380382U JPS5996916U (en) 1982-12-21 1982-12-21 variable gain amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19380382U JPS5996916U (en) 1982-12-21 1982-12-21 variable gain amplifier circuit

Publications (1)

Publication Number Publication Date
JPS5996916U true JPS5996916U (en) 1984-06-30

Family

ID=30416740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19380382U Pending JPS5996916U (en) 1982-12-21 1982-12-21 variable gain amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5996916U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243908A (en) * 1985-08-21 1987-02-25 Matsushita Electric Ind Co Ltd Amplifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5314442B2 (en) * 1974-09-02 1978-05-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5314442B2 (en) * 1974-09-02 1978-05-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243908A (en) * 1985-08-21 1987-02-25 Matsushita Electric Ind Co Ltd Amplifier

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