JPS58191708U - Muting amplifier malfunction prevention circuit - Google Patents

Muting amplifier malfunction prevention circuit

Info

Publication number
JPS58191708U
JPS58191708U JP8864282U JP8864282U JPS58191708U JP S58191708 U JPS58191708 U JP S58191708U JP 8864282 U JP8864282 U JP 8864282U JP 8864282 U JP8864282 U JP 8864282U JP S58191708 U JPS58191708 U JP S58191708U
Authority
JP
Japan
Prior art keywords
muting
prevention circuit
malfunction prevention
amplifier
muting amplifier
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.)
Granted
Application number
JP8864282U
Other languages
Japanese (ja)
Other versions
JPH0115227Y2 (en
Inventor
義 野口
正治 阪本
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 JP8864282U priority Critical patent/JPS58191708U/en
Publication of JPS58191708U publication Critical patent/JPS58191708U/en
Application granted granted Critical
Publication of JPH0115227Y2 publication Critical patent/JPH0115227Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (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 drawings]

第１図は従来のミューティング増幅器の回路図、第′２
図はとラテラルトランジスタＱ５とトランジスタＱ１の
断面図、第３図は本考案の一実施例の回路図である。 Ｑ□〜Ｑ１４・・・トランジスタ、１２・・・寄生トラ
ンジスタ。Figure 1 is a circuit diagram of a conventional muting amplifier.
The figure is a sectional view of the lateral transistor Q5 and the transistor Q1, and FIG. 3 is a circuit diagram of an embodiment of the present invention. Q□~Q14...transistor, 12...parasitic transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ベースに信号が入力される第１のラテラルＰＮＰトラン
ジスタと、１以上の定電流源として働く第２のラテラル
ＰＮＰ　トランジスタを有し、第２のラテラルＰＮＰト
ランジスタがオン中は増幅器として動作しかつオフ中は
ミューティングがかかるようにしたミューティング増幅
器において、ミューティング中は前記第２のラテラルＰ
ＮＰ　）ランジスタを強制的にオフ状態にする回路を備
えてなることを特徴とするミューティング増幅器の誤動
作防止回路。It has a first lateral PNP transistor to which a signal is input to the base, and a second lateral PNP transistor that functions as one or more constant current sources, and when the second lateral PNP transistor is on, it operates as an amplifier, and when it is off, it operates as an amplifier. is a muting amplifier in which muting is applied, and during muting, the second lateral P
NP) A malfunction prevention circuit for a muting amplifier, comprising a circuit that forcibly turns off a transistor.
JP8864282U 1982-06-16 1982-06-16 Muting amplifier malfunction prevention circuit Granted JPS58191708U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8864282U JPS58191708U (en) 1982-06-16 1982-06-16 Muting amplifier malfunction prevention circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8864282U JPS58191708U (en) 1982-06-16 1982-06-16 Muting amplifier malfunction prevention circuit

Publications (2)

Publication Number Publication Date
JPS58191708U true JPS58191708U (en) 1983-12-20
JPH0115227Y2 JPH0115227Y2 (en) 1989-05-08

Family

ID=30097305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8864282U Granted JPS58191708U (en) 1982-06-16 1982-06-16 Muting amplifier malfunction prevention circuit

Country Status (1)

Country Link
JP (1) JPS58191708U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162510A (en) * 1980-05-20 1981-12-14 Nec Corp Amplifier
JPS5769908A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Muting circuit
JPS58198907A (en) * 1982-05-17 1983-11-19 Pioneer Electronic Corp Malfunction preventing circuit of muting amplifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162510A (en) * 1980-05-20 1981-12-14 Nec Corp Amplifier
JPS5769908A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Muting circuit
JPS58198907A (en) * 1982-05-17 1983-11-19 Pioneer Electronic Corp Malfunction preventing circuit of muting amplifier

Also Published As

Publication number Publication date
JPH0115227Y2 (en) 1989-05-08

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