JPS5558624A - Switching circuit - Google Patents

Switching circuit

Info

Publication number
JPS5558624A
JPS5558624A JP13159578A JP13159578A JPS5558624A JP S5558624 A JPS5558624 A JP S5558624A JP 13159578 A JP13159578 A JP 13159578A JP 13159578 A JP13159578 A JP 13159578A JP S5558624 A JPS5558624 A JP S5558624A
Authority
JP
Japan
Prior art keywords
resistances
emitter
terminal
signals
conductive
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.)
Granted
Application number
JP13159578A
Other languages
Japanese (ja)
Other versions
JPS5836855B2 (en
Inventor
Mitsuo Fujita
Kazuo Negishi
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP53131595A priority Critical patent/JPS5836855B2/en
Publication of JPS5558624A publication Critical patent/JPS5558624A/en
Publication of JPS5836855B2 publication Critical patent/JPS5836855B2/en
Expired 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
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To use a small number of transistors to realize a circuit which switches different input signals and takes out them, by taking out input signals in a form of emitter follower. CONSTITUTION:When the control signal at terminal 3 is H-level, Tr3 becomes non-conductive because transistor Tr5 performs saturation operation. Therefore, since the resistance across the collector and the emitter of Tr1 becomes large sufficiently in comparison with resistance R9, a voltage determined by resistances R7 and R9 is applied to the emitter of Tr1, and Tr1 becomes non-conductive by selecting resistances R1 and R2. Consequently, signals applied to input terminal 1 are broken and do not appear at output terminal 4. Meanwhile, Tr4 performs saturation operation, and Tr2 operates in an active region at a bias value determined by resistances R3 and R4, so that signals applied to input terminal 2 can be taken out from output terminal 4 with a low impedance.
JP53131595A 1978-10-27 1978-10-27 switching circuit Expired JPS5836855B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53131595A JPS5836855B2 (en) 1978-10-27 1978-10-27 switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53131595A JPS5836855B2 (en) 1978-10-27 1978-10-27 switching circuit

Publications (2)

Publication Number Publication Date
JPS5558624A true JPS5558624A (en) 1980-05-01
JPS5836855B2 JPS5836855B2 (en) 1983-08-12

Family

ID=15061722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53131595A Expired JPS5836855B2 (en) 1978-10-27 1978-10-27 switching circuit

Country Status (1)

Country Link
JP (1) JPS5836855B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585524A1 (en) * 1985-07-23 1987-01-30 Blaupunkt Werke Gmbh Input changeover switch for satellite receiver circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042646U (en) * 1973-08-17 1975-04-30
JPS5286350U (en) * 1975-12-24 1977-06-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042646U (en) * 1973-08-17 1975-04-30
JPS5286350U (en) * 1975-12-24 1977-06-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585524A1 (en) * 1985-07-23 1987-01-30 Blaupunkt Werke Gmbh Input changeover switch for satellite receiver circuit

Also Published As

Publication number Publication date
JPS5836855B2 (en) 1983-08-12

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