JPS575435A - Optoelectronic switching circuit - Google Patents

Optoelectronic switching circuit

Info

Publication number
JPS575435A
JPS575435A JP7960780A JP7960780A JPS575435A JP S575435 A JPS575435 A JP S575435A JP 7960780 A JP7960780 A JP 7960780A JP 7960780 A JP7960780 A JP 7960780A JP S575435 A JPS575435 A JP S575435A
Authority
JP
Japan
Prior art keywords
turned
photodetectors
bias voltage
state
input
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
JP7960780A
Other languages
Japanese (ja)
Inventor
Susumu Machida
Erumaa.Eichi.Hara
Hiroshi Kanbe
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7960780A priority Critical patent/JPS575435A/en
Publication of JPS575435A publication Critical patent/JPS575435A/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
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To make a titled circuit small in size and economical, by only one amplifier circuit without using a resistance network. CONSTITUTION:An input electric signal from each input terminal Ai produces optical signals 2 with an electrooptic conversion element connected to each terminal and the optical signals are received with photodetectors 3 opposing thereto. Only an electric signal from an input terminal A1 is turned on to be picked up from an output terminal B and electric signals from other input terminals are turned off. In such a state, a control signal P1 is turned on, and a bias voltage applied to the detectors 3 is reversed with a bias voltage switching circuit 4, control signals at other terminals are turned off and the bias voltage is Voff. Thus, photodetectors in off-state cause high resitance and act as load resistances for the photodetectors in on-state normally without shortening a load resistance 6 normally, allowing to make unnecessary a synthesizer with one amplifier 8 for signal amplification.
JP7960780A 1980-06-14 1980-06-14 Optoelectronic switching circuit Pending JPS575435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7960780A JPS575435A (en) 1980-06-14 1980-06-14 Optoelectronic switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7960780A JPS575435A (en) 1980-06-14 1980-06-14 Optoelectronic switching circuit

Publications (1)

Publication Number Publication Date
JPS575435A true JPS575435A (en) 1982-01-12

Family

ID=13694698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7960780A Pending JPS575435A (en) 1980-06-14 1980-06-14 Optoelectronic switching circuit

Country Status (1)

Country Link
JP (1) JPS575435A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150032U (en) * 1984-03-15 1985-10-05 パラマウント硝子工業株式会社 insulation material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150032U (en) * 1984-03-15 1985-10-05 パラマウント硝子工業株式会社 insulation material
JPH0136598Y2 (en) * 1984-03-15 1989-11-07

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