JPS6147541U

JPS6147541U - signal transmission circuit

Info

Publication number: JPS6147541U
Application number: JP1984130412U
Authority: JP
Inventors: 繁澤田
Original assignee: 日本ビクター株式会社
Priority date: 1984-08-30
Filing date: 1984-08-30
Publication date: 1986-03-29

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

[Brief explanation of the drawing]

第１図は本考案回路の一実施例の回路構成図、第２図は
従来回路の一例の回路構成図、第３図は第２図示の回路
の一部の回路図である。ｌａ，ｌｂ・・・外部信号入力端子、２・・・外部機器
回路、６ａ，６ｂ・・・端子、１０・・・トランス駆動
回路、１１・・・絶縁トランス、１２・・・増幅回路、
Ｒｏ・・・信号源インピーダンス、ＲＬ・・・終端イン
ピーダンス、Ｒａ，Ｒｂ・・・抵抗。FIG. 1 is a circuit configuration diagram of an embodiment of the circuit of the present invention, FIG. 2 is a circuit diagram of an example of a conventional circuit, and FIG. 3 is a circuit diagram of a part of the circuit shown in FIG. la, lb... external signal input terminal, 2... external device circuit, 6a, 6b... terminal, 10... transformer drive circuit, 11... isolation transformer, 12... amplifier circuit,
Ro...Signal source impedance, RL...Terminal impedance, Ra, Rb...Resistance.

Claims

[Scope of utility model registration request]

In a signal transmission circuit that transmits an input signal supplied to an input terminal to a subsequent circuit via a transformer, a first impedance circuit and a second impedance whose impedance is sufficiently smaller than the impedance of the first impedance circuit. A transformer drive circuit is constructed by connecting the circuits in series to have a composite impedance approximately equal to the signal source inadance of the input signal, and the transformer drive circuit is connected to the input terminal to terminate the input signal. , a signal transmission circuit configured to supply both-end outputs of the second ispidance to the primary side of the transformer.