ZA743109B - Fail-safe optically coupled logic networks - Google Patents

Fail-safe optically coupled logic networks

Info

Publication number
ZA743109B
ZA743109B ZA00743109A ZA743109A ZA743109B ZA 743109 B ZA743109 B ZA 743109B ZA 00743109 A ZA00743109 A ZA 00743109A ZA 743109 A ZA743109 A ZA 743109A ZA 743109 B ZA743109 B ZA 743109B
Authority
ZA
South Africa
Prior art keywords
fail
safe
optically coupled
coupled logic
logic networks
Prior art date
Application number
ZA00743109A
Other languages
English (en)
Inventor
R Perry
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ZA743109B publication Critical patent/ZA743109B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/14—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Electronic Switches (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Optical Communication System (AREA)
  • Led Devices (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Logic Circuits (AREA)
ZA00743109A 1973-06-05 1974-05-15 Fail-safe optically coupled logic networks ZA743109B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00367255A US3826930A (en) 1973-06-05 1973-06-05 Fail-safe optically coupled logic networks

Publications (1)

Publication Number Publication Date
ZA743109B true ZA743109B (en) 1975-05-28

Family

ID=23446473

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00743109A ZA743109B (en) 1973-06-05 1974-05-15 Fail-safe optically coupled logic networks

Country Status (13)

Country Link
US (1) US3826930A (xx)
JP (1) JPS5023552A (xx)
AU (1) AU6914974A (xx)
BE (1) BE815913A (xx)
CA (1) CA1023010A (xx)
CH (1) CH591185A5 (xx)
DE (1) DE2425904C2 (xx)
ES (1) ES426953A1 (xx)
FR (1) FR2232883B1 (xx)
IN (1) IN141692B (xx)
IT (1) IT1013916B (xx)
SE (1) SE7407424L (xx)
ZA (1) ZA743109B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995173A (en) * 1974-05-30 1976-11-30 General Signal Corporation Solid state fail-safe logic system
US4075512A (en) * 1975-02-04 1978-02-21 The United States Of America As Represented By The Secretary Of The Army Light pipe technique for grid pulsing
US4247790A (en) * 1976-01-22 1981-01-27 Westinghouse Electric Corp. Failsafe train vehicle control signal threshold detector apparatus
US4179629A (en) * 1977-08-10 1979-12-18 Westinghouse Electric Corp. Failsafe logic function apparatus
US4412140A (en) * 1981-11-19 1983-10-25 Motorola, Inc. Circuit for reducing current to light emitting diode of optically coupled driver
JPS59125675A (ja) * 1983-01-07 1984-07-20 Oki Electric Ind Co Ltd 発光受光装置
JPS59125677A (ja) * 1983-01-07 1984-07-20 Oki Electric Ind Co Ltd 発光受光装置
DE3519252A1 (de) * 1985-05-29 1986-12-04 Fresenius AG, 6380 Bad Homburg Fehlersichere logikschaltung
US4812677A (en) * 1987-10-15 1989-03-14 Motorola Power supply control with false shut down protection
CN100398721C (zh) * 2002-06-11 2008-07-02 乐金电子(天津)电器有限公司 洗衣机的操作电路
US11307601B2 (en) * 2020-09-24 2022-04-19 Polaris Semiconductor LLC Linear voltage regulator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995664A (en) * 1954-06-01 1961-08-08 Rca Corp Transistor gate circuits
US3231758A (en) * 1962-12-12 1966-01-25 Singer Inc H R B Pulse gate
DE1264513C2 (de) * 1963-11-29 1973-01-25 Texas Instruments Inc Bezugspotentialfreier gleichstromdifferenzverstaerker
US3430066A (en) * 1965-08-31 1969-02-25 Westinghouse Air Brake Co Unit gain fail safe "and" logic circuit
US3486029A (en) * 1965-12-29 1969-12-23 Gen Electric Radiative interconnection arrangement
US3492488A (en) * 1967-09-11 1970-01-27 Bell Telephone Labor Inc Photon coupling for a communication circuit
US3600604A (en) * 1968-12-03 1971-08-17 Westinghouse Electric Corp Failsafe logic gates
BE786430A (fr) * 1971-07-22 1973-01-18 Westinghouse Electric Corp Circuit electronique de verrouillage

Also Published As

Publication number Publication date
US3826930A (en) 1974-07-30
SE7407424L (sv) 1975-02-17
JPS5023552A (xx) 1975-03-13
IN141692B (xx) 1977-04-09
DE2425904A1 (de) 1975-01-02
AU6914974A (en) 1975-11-20
ES426953A1 (es) 1976-09-01
IT1013916B (it) 1977-03-30
FR2232883A1 (xx) 1975-01-03
BE815913A (fr) 1974-12-04
FR2232883B1 (xx) 1978-01-13
DE2425904C2 (de) 1983-01-13
CH591185A5 (xx) 1977-09-15
CA1023010A (en) 1977-12-20

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