JPS6085456U - Amplifier switching circuit - Google Patents
Amplifier switching circuitInfo
- Publication number
- JPS6085456U JPS6085456U JP17692783U JP17692783U JPS6085456U JP S6085456 U JPS6085456 U JP S6085456U JP 17692783 U JP17692783 U JP 17692783U JP 17692783 U JP17692783 U JP 17692783U JP S6085456 U JPS6085456 U JP S6085456U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- switching circuit
- diode
- switching
- amplifier switching
- 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
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (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図は直流定電流による直列給電方式の伝送路の概略
構成図、第２図は従来の増幅器切替回路の回路図、第３
図は本考案の一実施例を示す回路図である。
３・・・現用増幅器、１０・・・補助増幅器、２４，２
８・・・ダイオード、２３，２５，２７，２９・・・コ
ンデンサ、３Ｂ、３９，４０，４１・・・ホトカプラ、
４２．４３・・・ツェナーダイオード、５２・・・バッ
テリ。Figure 1 is a schematic configuration diagram of a transmission line using a series power supply system using constant DC current, Figure 2 is a circuit diagram of a conventional amplifier switching circuit, and Figure 3 is a diagram of a conventional amplifier switching circuit.
The figure is a circuit diagram showing an embodiment of the present invention. 3... Working amplifier, 10... Auxiliary amplifier, 24,2
8... Diode, 23, 25, 27, 29... Capacitor, 3B, 39, 40, 41... Photocoupler,
42.43...Zener diode, 52...Battery.
Claims (1)
能を有する補助増幅器を具備し、前記現用増幅器を予備
増幅器に切り替える聞伝送路に挿入される増幅器切替回
路において、前記電送路に対して前記補助増幅器と直列
で、且つ前記直流定電流に対して順方向に接続されたダ
イオードと、前記補助増幅器を介して前記ダイオードを
逆バイアスする定電圧印加手段と、前記直流定電流の強
制的流入によって前記ダイオードに印加された逆バイア
スを順バイアスに切り替えるスイッチ手段とを具備した
増幅器切替回路。In an amplifier switching circuit inserted into a transmission line, the amplifier switching circuit is equipped with an auxiliary amplifier having the same function as a working amplifier of a series power supply system using a direct current constant current, and is inserted into a transmission line for switching the working amplifier to a standby amplifier. a diode connected in series with the amplifier and in a forward direction with respect to the constant DC current; a constant voltage applying means for reverse biasing the diode through the auxiliary amplifier; an amplifier switching circuit comprising switch means for switching reverse bias applied to a diode to forward bias;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17692783U JPS6085456U (en) | 1983-11-16 | 1983-11-16 | Amplifier switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17692783U JPS6085456U (en) | 1983-11-16 | 1983-11-16 | Amplifier switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6085456U true JPS6085456U (en) | 1985-06-12 |
Family
ID=30384525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17692783U Pending JPS6085456U (en) | 1983-11-16 | 1983-11-16 | Amplifier switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6085456U (en) |
-
1983
- 1983-11-16 JP JP17692783U patent/JPS6085456U/en active Pending
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