ES8506414A1 - Disposicion de circuito logico de umbral y de seguridad intrinseca - Google Patents

Disposicion de circuito logico de umbral y de seguridad intrinseca

Info

Publication number
ES8506414A1
ES8506414A1 ES536626A ES536626A ES8506414A1 ES 8506414 A1 ES8506414 A1 ES 8506414A1 ES 536626 A ES536626 A ES 536626A ES 536626 A ES536626 A ES 536626A ES 8506414 A1 ES8506414 A1 ES 8506414A1
Authority
ES
Spain
Prior art keywords
resistance
voltage
logic circuit
threshold
safe logic
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
ES536626A
Other languages
English (en)
Other versions
ES536626A0 (es
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.)
Jeumont Schneider SA
Original Assignee
Jeumont Schneider SA
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 Jeumont Schneider SA filed Critical Jeumont Schneider SA
Publication of ES536626A0 publication Critical patent/ES536626A0/es
Publication of ES8506414A1 publication Critical patent/ES8506414A1/es
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
    • H03K19/007—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)
  • Logic Circuits (AREA)
  • Manipulation Of Pulses (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

DISPOSICION DE CIRCUITO LOGICO DE UMBRAL Y DE SEGURIDAD INTRINSECA.COMPRENDE UN COMPARADOR (7) A UNA DE LAS ENTRADAS DEL CUAL SE APLICA UNA TENSION CONTINUA DE REFERENCIA, AL PASO QUE LA OTRA ENTRADA ESTA CONECTADA AL PUNTO DE UNION DE UNA PRIMERA (1) Y UNA SEGUNDA (2) RESISTENCIAS, SIENDO APLICADA UNA PRIMERA TENSION CONTINUA DE VALOR RELATIVO BAJO V1 AL OTRO EXTREMO DE LA PRIMERA RESISTENCIA Y SIENDO APLICADA UNA SEGUNDA TENSION CONTINUA DE VALOR RELATIVO ELEVADO V2 AL OTRO EXTREMO DE LA SEGUNDA RESISTENCIA POR MEDIO DE UNA TERCERA RESISTENCIA (3); EN DONDE SE APLICA EL PUNTO DE UNION DE LA SEGUNDA Y TERCERA RESISTENCIAS UNA TERCERA TENSION CONTINUA DE VALOR RELATIVO INTERMEDIO V3 A TRAVES DE UNA CUARTA RESISTENCIA (4) EN SERIE CON UN CONMUTADOR (6) DE ONDULACION.
ES536626A 1983-10-13 1984-10-09 Disposicion de circuito logico de umbral y de seguridad intrinseca Expired ES8506414A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8316331A FR2553605B1 (fr) 1983-10-13 1983-10-13 Circuit logique a seuil et a securite intrinseque

Publications (2)

Publication Number Publication Date
ES536626A0 ES536626A0 (es) 1985-07-16
ES8506414A1 true ES8506414A1 (es) 1985-07-16

Family

ID=9293114

Family Applications (1)

Application Number Title Priority Date Filing Date
ES536626A Expired ES8506414A1 (es) 1983-10-13 1984-10-09 Disposicion de circuito logico de umbral y de seguridad intrinseca

Country Status (11)

Country Link
US (1) US4677316A (es)
EP (1) EP0138706B1 (es)
BR (1) BR8405080A (es)
CA (1) CA1213006A (es)
DE (1) DE3480454D1 (es)
ES (1) ES8506414A1 (es)
FR (1) FR2553605B1 (es)
IN (1) IN163002B (es)
MX (1) MX156832A (es)
PT (1) PT79313B (es)
ZA (1) ZA847983B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9606174D0 (en) * 1996-03-23 1996-05-29 Atomic Energy Authority Uk Signal monitor
EP1285497A1 (en) 1999-12-30 2003-02-26 Ge-Harris Railway Electronics L.L.C. Vital "and" gate apparatus and method
FR2870652B1 (fr) * 2004-05-24 2007-08-03 Scle Soc De Construction De Li Dispositif de securite reproduisant une fonction logique notamment un "et" de securite

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274016A (es) * 1961-01-26
US3430066A (en) * 1965-08-31 1969-02-25 Westinghouse Air Brake Co Unit gain fail safe "and" logic circuit
GB1242540A (en) * 1967-12-21 1971-08-11 Westinghouse Brake & Signal Static gating circuits
US3995173A (en) * 1974-05-30 1976-11-30 General Signal Corporation Solid state fail-safe logic system
US4130764A (en) * 1977-07-27 1978-12-19 Westinghouse Air Brake Company Fail-safe or logic circuit
US4125784A (en) * 1977-07-27 1978-11-14 Westinghouse Air Brake Company Fail-safe or gate
FR2510845A1 (fr) * 1981-07-31 1983-02-04 Omera Segid Circuits logiques de securite utilisables notamment en signalisation ferroviaire et boite de traitement electronique, ou automatisme incorporant au moins un de ces circuits
JPS58188923A (ja) * 1982-04-28 1983-11-04 Nippon Denso Co Ltd 周期信号検出回路

Also Published As

Publication number Publication date
FR2553605A1 (fr) 1985-04-19
BR8405080A (pt) 1985-08-20
ZA847983B (en) 1985-05-29
EP0138706B1 (fr) 1989-11-08
EP0138706A3 (es) 1985-06-12
DE3480454D1 (en) 1989-12-14
PT79313B (fr) 1986-08-19
FR2553605B1 (fr) 1988-12-02
MX156832A (es) 1988-10-05
CA1213006A (fr) 1986-10-21
US4677316A (en) 1987-06-30
PT79313A (fr) 1984-11-01
EP0138706A2 (fr) 1985-04-24
ES536626A0 (es) 1985-07-16
IN163002B (es) 1988-07-30

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