JPS5535583A - Signal transmission control device - Google Patents

Signal transmission control device

Info

Publication number
JPS5535583A
JPS5535583A JP10994678A JP10994678A JPS5535583A JP S5535583 A JPS5535583 A JP S5535583A JP 10994678 A JP10994678 A JP 10994678A JP 10994678 A JP10994678 A JP 10994678A JP S5535583 A JPS5535583 A JP S5535583A
Authority
JP
Japan
Prior art keywords
signal transmission
transistor
signal
capacitors
control device
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
JP10994678A
Other languages
Japanese (ja)
Inventor
Masaharu Iwashita
Hiroyuki Nagai
Kaoru Sasabe
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 JP10994678A priority Critical patent/JPS5535583A/en
Publication of JPS5535583A publication Critical patent/JPS5535583A/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

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To secure an easy control for the signal transmission by applying the control voltage to the base of the transistor which controls the signal transmisson via constant voltage diode, at the same time increasing the dynamic range to prevent occurrence of the signal distortion. CONSTITUTION:Two units of capacitors 17 and 18 connect input terminal 15 and output terminla 16 of the AC signals in series, and the collector and the emitter of transistor 19 are connected to the middle point between capacitors 17 and 18 as well as to the earth point. Then the control voltage is applied to the base of transistor 19 via constant voltage diode 20. As a result, the signal transmission can be controlled easily, and at the same time the dynamic range can be increased to prevent occurrence of the signal distortion.
JP10994678A 1978-09-06 1978-09-06 Signal transmission control device Pending JPS5535583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10994678A JPS5535583A (en) 1978-09-06 1978-09-06 Signal transmission control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10994678A JPS5535583A (en) 1978-09-06 1978-09-06 Signal transmission control device

Publications (1)

Publication Number Publication Date
JPS5535583A true JPS5535583A (en) 1980-03-12

Family

ID=14523117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10994678A Pending JPS5535583A (en) 1978-09-06 1978-09-06 Signal transmission control device

Country Status (1)

Country Link
JP (1) JPS5535583A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5128566A (en) * 1989-11-03 1992-07-07 Etymotic Research, Inc. Variable attenuator circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5128566A (en) * 1989-11-03 1992-07-07 Etymotic Research, Inc. Variable attenuator circuit

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