JPS6068714U - Bidirectional amplifier for audio signals - Google Patents
Bidirectional amplifier for audio signalsInfo
- Publication number
- JPS6068714U JPS6068714U JP15941483U JP15941483U JPS6068714U JP S6068714 U JPS6068714 U JP S6068714U JP 15941483 U JP15941483 U JP 15941483U JP 15941483 U JP15941483 U JP 15941483U JP S6068714 U JPS6068714 U JP S6068714U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- communication system
- wire
- voice communication
- simultaneous
- 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)
- Interconnected Communication Systems, Intercoms, And Interphones (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図は従来の音声信号の双方向増幅器を示す回路図、
第２図はこの考案の一実施例による音声信号の双方向増
幅器を示す回路図、第３図はこの考案の基本原理を適用
した２線−４線変換器の回路図である。
２１．２２・・・２線式音声同時通話システム、３０．
２４・・・第１、第２のハイブリッドトランス、２４
ａ、 ３０ ａ・・・１次コイル、２４ｂ、３０ｂ−
・・２次コイル、２４ｃ、３０ｃ・・・３次コイル、２
４ｍ、３０ｍ・・・中間タップ、２５．２６・・・バラ
ンス用抵抗、２７．２８・・・第１、第２の増幅器。な
お図中、同一符号は同−又は相当部分を示す。FIG. 1 is a circuit diagram showing a conventional bidirectional audio signal amplifier.
FIG. 2 is a circuit diagram showing a bidirectional audio signal amplifier according to an embodiment of this invention, and FIG. 3 is a circuit diagram of a two-wire to four-wire converter to which the basic principle of this invention is applied. 21.22...Two-wire simultaneous voice call system, 30.
24...first and second hybrid transformers, 24
a, 30 a...primary coil, 24b, 30b-
...Secondary coil, 24c, 30c...Tertiary coil, 2
4m, 30m...Intermediate tap, 25.26...Balancing resistor, 27.28...First and second amplifiers. In the drawings, the same reference numerals indicate the same or equivalent parts.
Claims (1)
式音声同時通話システムを結合するための音声信号の双
方向増幅器において、一方の２線式音声同時通話システ
ムからの音声信号を増幅する第１の増幅器と、他方の２
線式音声同時通話システムからの音声信号を増幅する第
２の増幅器と、上記第１の増幅器の出力に接続された１
次コイル、その両端間に２つのバランス用抵抗が接続さ
れその一端と中間タップ間に上記他方の２線式音声通話
システムの線路が接続された２次コイル、及びその一端
が上記２次コイルの中間タップに接続され他端が上記２
つのバランス用抵抗の接続点に接続された３次コイルか
らなり上記第１の増幅器と上記他方の゛２２線音声同時
通話システムとを接続す−る第１のハイブリッドトラン
スと、上記第２の増幅器と上記一方の２線式音声同時通
話システムとを接続する上記第１のハイブリッドトラン
スと同一構成になる第２のハイブリッドトランスとを備
えたことを特徴とする音声信号の双方向増幅器。In a bidirectional audio signal amplifier for combining two two-wire simultaneous voice communication systems having the same or different line impedance, a first amplifier for amplifying the voice signal from one two-wire simultaneous voice communication system is used. amplifier and the other two
a second amplifier for amplifying the audio signal from the wired voice simultaneous communication system; and a first amplifier connected to the output of the first amplifier.
A secondary coil with two balancing resistors connected between its ends and a line of the other two-wire voice communication system connected between its one end and the intermediate tap; Connected to the intermediate tap and the other end is connected to the above 2
a first hybrid transformer comprising a tertiary coil connected to the connection point of two balancing resistors, and connecting the first amplifier and the other 22-wire voice communication system; and a second hybrid transformer having the same configuration as the first hybrid transformer that connects the two-wire simultaneous voice communication system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15941483U JPS6068714U (en) | 1983-10-15 | 1983-10-15 | Bidirectional amplifier for audio signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15941483U JPS6068714U (en) | 1983-10-15 | 1983-10-15 | Bidirectional amplifier for audio signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6068714U true JPS6068714U (en) | 1985-05-15 |
Family
ID=30350925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15941483U Pending JPS6068714U (en) | 1983-10-15 | 1983-10-15 | Bidirectional amplifier for audio signals |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6068714U (en) |
-
1983
- 1983-10-15 JP JP15941483U patent/JPS6068714U/en active Pending
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