JPS5678231A - High-frequency switch - Google Patents

High-frequency switch

Info

Publication number
JPS5678231A
JPS5678231A JP15483879A JP15483879A JPS5678231A JP S5678231 A JPS5678231 A JP S5678231A JP 15483879 A JP15483879 A JP 15483879A JP 15483879 A JP15483879 A JP 15483879A JP S5678231 A JPS5678231 A JP S5678231A
Authority
JP
Japan
Prior art keywords
terminal
diodes
signal
antenna
turned
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
Application number
JP15483879A
Other languages
Japanese (ja)
Inventor
Masayoshi Nawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsumi Electric Co Ltd
Original Assignee
Mitsumi Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsumi Electric Co Ltd filed Critical Mitsumi Electric Co Ltd
Priority to JP15483879A priority Critical patent/JPS5678231A/en
Publication of JPS5678231A publication Critical patent/JPS5678231A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To save energy while preventing a signal in switching from leaking by controlling a semiconductor element, connected in the opposite direction, by a switching control power source by using this semiconductor element to change over a TV receiver with VTR as an additional device. CONSTITUTION:A TV signal from antenna terminal 4a of antenna 4 and a picture signal from converter terminal 3a of VTR device 2 are changed over by high- frequency switch 5 and supplied to TV1. This switch 5 is composed of reversely connected diodes 16 and 17 connected to terminal 4a and diodes 18 and 19 connected in series to terminal 3a, and the connection points of diodes 16 and 17, and 18 and 19 are connected to switching control power terminal 20 via resistances 24 and 25 respectively. When terminal 20 is opened or short-circuited, diodes 16-19 are turned on and an input to terminal 4a is applied to antenna input terminal 1a to hold TV reception in readiness; when a positive voltage is applied to terminal 20, diodes 16-19 are turned off and a signal to terminal 3a is applied to terminal 1 without leakage and reproduced.
JP15483879A 1979-11-29 1979-11-29 High-frequency switch Pending JPS5678231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15483879A JPS5678231A (en) 1979-11-29 1979-11-29 High-frequency switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15483879A JPS5678231A (en) 1979-11-29 1979-11-29 High-frequency switch

Publications (1)

Publication Number Publication Date
JPS5678231A true JPS5678231A (en) 1981-06-27

Family

ID=15592980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15483879A Pending JPS5678231A (en) 1979-11-29 1979-11-29 High-frequency switch

Country Status (1)

Country Link
JP (1) JPS5678231A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101980A (en) * 1982-12-01 1984-06-12 Mitsubishi Electric Corp Magnetic picture recording and reproducing device
JPS60142684A (en) * 1983-12-29 1985-07-27 Matsushita Electric Ind Co Ltd Switching device of video signal
JPS61274405A (en) * 1985-03-21 1986-12-04 ゼネラル・エレクトリツク・カンパニイ Gate type modulator for wireless frequency carrier signal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101980A (en) * 1982-12-01 1984-06-12 Mitsubishi Electric Corp Magnetic picture recording and reproducing device
JPS60142684A (en) * 1983-12-29 1985-07-27 Matsushita Electric Ind Co Ltd Switching device of video signal
JPS61274405A (en) * 1985-03-21 1986-12-04 ゼネラル・エレクトリツク・カンパニイ Gate type modulator for wireless frequency carrier signal

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