JPS619908U - Muting circuit - Google Patents
Muting circuitInfo
- 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
Links
Landscapes
- 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
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)
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.
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) |
-
1984
- 1984-06-20 JP JP9317084U patent/JPS619908U/en active Pending
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