GB1514762A - Solid-state fail-safe logic system - Google Patents

Solid-state fail-safe logic system

Info

Publication number
GB1514762A
GB1514762A GB20715/75A GB2071575A GB1514762A GB 1514762 A GB1514762 A GB 1514762A GB 20715/75 A GB20715/75 A GB 20715/75A GB 2071575 A GB2071575 A GB 2071575A GB 1514762 A GB1514762 A GB 1514762A
Authority
GB
United Kingdom
Prior art keywords
signal
circuit
load
transistor
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.)
Expired
Application number
GB20715/75A
Other languages
English (en)
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.)
SPX Corp
Original Assignee
General Signal 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 General Signal Corp filed Critical General Signal Corp
Publication of GB1514762A publication Critical patent/GB1514762A/en
Expired legal-status Critical Current

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
    • 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
    • H03K19/007—Fail-safe circuits

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)
GB20715/75A 1974-05-30 1975-05-15 Solid-state fail-safe logic system Expired GB1514762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47463874A 1974-05-30 1974-05-30

Publications (1)

Publication Number Publication Date
GB1514762A true GB1514762A (en) 1978-06-21

Family

ID=23884399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20715/75A Expired GB1514762A (en) 1974-05-30 1975-05-15 Solid-state fail-safe logic system

Country Status (5)

Country Link
FR (1) FR2273416B1 (da)
GB (1) GB1514762A (da)
IT (1) IT1033889B (da)
NL (1) NL170687C (da)
ZA (1) ZA753004B (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136233A (en) * 1983-02-28 1984-09-12 Westinghouse Electric Corp Circuit for sensing the status of a voltage input over a wide range of voltage levels and waveforms
GB2138229A (en) * 1983-04-08 1984-10-17 Gec General Signal Ltd Opto-isolator arrangement
CN109600135A (zh) * 2018-11-09 2019-04-09 天津航空机电有限公司 一种双模式独立控制的功率驱动电路

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136233A (en) * 1983-02-28 1984-09-12 Westinghouse Electric Corp Circuit for sensing the status of a voltage input over a wide range of voltage levels and waveforms
GB2138229A (en) * 1983-04-08 1984-10-17 Gec General Signal Ltd Opto-isolator arrangement
CN109600135A (zh) * 2018-11-09 2019-04-09 天津航空机电有限公司 一种双模式独立控制的功率驱动电路
CN109600135B (zh) * 2018-11-09 2023-05-23 天津航空机电有限公司 一种双模式独立控制的功率驱动电路

Also Published As

Publication number Publication date
FR2273416A1 (da) 1975-12-26
NL170687C (nl) 1982-12-01
IT1033889B (it) 1979-08-10
NL7506346A (nl) 1975-12-02
ZA753004B (en) 1976-03-31
NL170687B (nl) 1982-07-01
FR2273416B1 (da) 1980-01-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940515