JPS619908U - Muting circuit - Google Patents

Muting circuit

Info

Publication number
JPS619908U
JPS619908U JP9317084U JP9317084U JPS619908U JP S619908 U JPS619908 U JP S619908U JP 9317084 U JP9317084 U JP 9317084U JP 9317084 U JP9317084 U JP 9317084U JP S619908 U JPS619908 U JP S619908U
Authority
JP
Japan
Prior art keywords
switching element
amplifier
command
muting circuit
turn
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
JP9317084U
Other languages
Japanese (ja)
Inventor
洋 黒田
Original Assignee
三洋電機株式会社
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 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP9317084U priority Critical patent/JPS619908U/en
Publication of JPS619908U publication Critical patent/JPS619908U/en
Pending legal-status Critical Current

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  • 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図および第2図はそれぞれ従来のミューテイング回
路の結線図、第3図以下の図面はこの考案のミューテイ
ング回路の1実施例を示し、第3図は結線図、第4図は
詳細な結線図である。 3・・・主電力増幅器、10・・・帰還回路、13・・
・トランジスタ、14.15・・・指令部、27・・・
ポジスタ。
Figures 1 and 2 are wiring diagrams of conventional muting circuits, Figure 3 and the following figures show an embodiment of the muting circuit of this invention, Figure 3 is a wiring diagram, and Figure 4 is a detailed diagram. This is a wiring diagram. 3... Main power amplifier, 10... Feedback circuit, 13...
・Transistor, 14.15... Command section, 27...
Posista.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 負帰還型電力増幅器の帰還回路のアース端子とアースと
の間に設けられオン時、オフ時に前記増幅器の利得を高
、低に制御するスイッチング素子と、前記増幅器への電
源投入および電源遮断をそれぞれ検知して前記スイッチ
ング素子に所定時間オフ指令信号を出力し前記スイッチ
ング素子をオフさせる第1、第2指令部と、温度検知素
子からなり前記増幅器温度の所定温度以上への上昇を検
知して前記スイッチング素子にオフ指令信号を出力し前
記スイッチング素子をオフさせる第3指令部とを備えた
ミューテイング回路。
A switching element is provided between the ground terminal of the feedback circuit of the negative feedback power amplifier and the ground, and controls the gain of the amplifier to be high or low when on and off, and turns on and off the power to the amplifier, respectively. The first and second command sections detect and output an off command signal to the switching element for a predetermined period of time to turn off the switching element, and a temperature detection element detects an increase in the temperature of the amplifier to a predetermined temperature or higher and A muting circuit comprising: a third command section that outputs an off command signal to a switching element to turn off the switching element.
JP9317084U 1984-06-20 1984-06-20 Muting circuit Pending JPS619908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9317084U JPS619908U (en) 1984-06-20 1984-06-20 Muting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9317084U JPS619908U (en) 1984-06-20 1984-06-20 Muting circuit

Publications (1)

Publication Number Publication Date
JPS619908U true JPS619908U (en) 1986-01-21

Family

ID=30650606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9317084U Pending JPS619908U (en) 1984-06-20 1984-06-20 Muting circuit

Country Status (1)

Country Link
JP (1) JPS619908U (en)

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