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JPS561621A - Signal switching circuit - Google Patents

Signal switching circuit

Info

Publication number
JPS561621A
JPS561621A JP7742279A JP7742279A JPS561621A JP S561621 A JPS561621 A JP S561621A JP 7742279 A JP7742279 A JP 7742279A JP 7742279 A JP7742279 A JP 7742279A JP S561621 A JPS561621 A JP S561621A
Authority
JP
Japan
Prior art keywords
base
control signal
transistor
signals
output
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
JP7742279A
Other languages
Japanese (ja)
Inventor
Akira Takayoshi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7742279A priority Critical patent/JPS561621A/en
Publication of JPS561621A publication Critical patent/JPS561621A/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
    • H03K17/56—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
    • H03K17/6257—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent occurrence of the click noise at the switching time of the output signals, by applying the base control signal of the other transistor before the potential of the control signal applied to one transistor base is extinguished. CONSTITUTION:The signals applied to input terminals 9 and 10 are led to the collectors of transistor (TR)12 and 18 via capacitors 11 and 17 each. And the control signals are supplied selectively to base terminals 14 and 20 of TR12, 18, and the outputs from TR12, 18 are extracted to output terminal 16 via capacitor 15. Here resistance 21 is inserted between the common-connected emitter and the earth of TR12, 18. Thus the base control signal of the other TR is applied before the potential of the control signal applied to the base of one TR is extinguished in case the output signal is switched to terminal 16. As a result, the click noise occurring at the switching time of the output signals can be prevented.
JP7742279A 1979-06-18 1979-06-18 Signal switching circuit Pending JPS561621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7742279A JPS561621A (en) 1979-06-18 1979-06-18 Signal switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7742279A JPS561621A (en) 1979-06-18 1979-06-18 Signal switching circuit

Publications (1)

Publication Number Publication Date
JPS561621A true JPS561621A (en) 1981-01-09

Family

ID=13633522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7742279A Pending JPS561621A (en) 1979-06-18 1979-06-18 Signal switching circuit

Country Status (1)

Country Link
JP (1) JPS561621A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113391U (en) * 1984-06-25 1986-01-25 三洋電機株式会社 Signal switching circuit
JPH0344320U (en) * 1989-08-31 1991-04-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113391U (en) * 1984-06-25 1986-01-25 三洋電機株式会社 Signal switching circuit
JPH0344320U (en) * 1989-08-31 1991-04-24

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