JPS60189180U

JPS60189180U - high frequency switch

Info

Publication number: JPS60189180U
Application number: JP5028585U
Authority: JP
Inventors: 名和　正義
Original assignee: ミツミ電機株式会社
Priority date: 1985-04-04
Filing date: 1985-04-04
Publication date: 1985-12-14
Also published as: JPS6238381Y2

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図は高周波スイッチの一般例をテレビジョン及びＶ
ＴＲ装置に使用した場合の概略構成図、第′２図以下は
本考案に係るもので、第２図Ａ。Ｂ、　Ｃは基本構成図、第３図は第１の実施例で第　　
。２図Ａを具体化した回路図、第４図は第２の実施例で第
２図Ａを具体化した回路図、第５図は第３の実施例で第
２図Ｂを具体化した回、略図である。　　　′１・・、
・テレビジョン、１ａ・・・アンテナ入力端子、２・・
−ＶＴＲ装置、３ａ・・・コンバータ端子、３・・・Ｒ
Ｆコンバータ、４・・・アンテナ、４ａ・・・アンテナ
端　　−子、５・・・高周波スイッチ、９，１０・・・
常開型スイッチ。Figure 1 shows general examples of high frequency switches for television and V
A schematic configuration diagram when used in a TR device, Fig. 2A and the following are related to the present invention. B and C are basic configuration diagrams, and Figure 3 shows the first embodiment.
. Figure 2 is a circuit diagram embodying Figure 2A, Figure 4 is a circuit diagram embodying Figure 2A in the second embodiment, and Figure 5 is a circuit diagram embodying Figure 2B in the third embodiment. , is a schematic diagram. '1...,
・Television, 1a...Antenna input terminal, 2...
-VTR device, 3a...converter terminal, 3...R
F converter, 4... Antenna, 4a... Antenna terminal terminal, 5... High frequency switch, 9, 10...
Normally open switch.

Claims

[Scope of utility model registration request]

a first input for providing a first signal in a radio frequency switch for switching to receive either a first signal having a plurality of television broadcast signals and a second signal having a single television broadcast signal; a filter circuit that passes the first signal between the terminal and the receiving terminal; a normally open first switch means that changes an element constant of the closing time filter circuit; and a second switch that supplies the second signal. A normally open type second switch means interlocked with the first switch means is provided between the terminal of the terminal and the receiving terminal, and the first and second switch means have two diodes connected in opposite directions. A power supply for switching control is supplied to the connection midpoint of the switching element, and the first terminal and the receiving terminal are always kept in a conductive state, and the closing of the first and second switch means causes the first terminal to be switched on. A high frequency switch characterized in that a conductive state is established between a second terminal and a receiving terminal.