BE882340A - Circuit de detection de l'etat d'un interrupteur - Google Patents

Circuit de detection de l'etat d'un interrupteur

Info

Publication number
BE882340A
BE882340A BE0/199878A BE199878A BE882340A BE 882340 A BE882340 A BE 882340A BE 0/199878 A BE0/199878 A BE 0/199878A BE 199878 A BE199878 A BE 199878A BE 882340 A BE882340 A BE 882340A
Authority
BE
Belgium
Prior art keywords
detecting
switch
circuit
state
Prior art date
Application number
BE0/199878A
Other languages
English (en)
Inventor
N Weiner
D Ketchum
Original Assignee
Electronics Corp America
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 Electronics Corp America filed Critical Electronics Corp America
Publication of BE882340A publication Critical patent/BE882340A/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication
BE0/199878A 1979-05-03 1980-03-20 Circuit de detection de l'etat d'un interrupteur BE882340A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/035,534 US4272725A (en) 1979-05-03 1979-05-03 Interface circuit for use with electronic control devices

Publications (1)

Publication Number Publication Date
BE882340A true BE882340A (fr) 1980-09-22

Family

ID=21883309

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/199878A BE882340A (fr) 1979-05-03 1980-03-20 Circuit de detection de l'etat d'un interrupteur

Country Status (5)

Country Link
US (1) US4272725A (fr)
BE (1) BE882340A (fr)
CA (1) CA1138045A (fr)
DE (1) DE3016287A1 (fr)
GB (1) GB2049960B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565027B1 (fr) * 1984-05-23 1986-09-26 Aerospatiale Dispositif pour controler l'etat de contacts electriques
US4697093A (en) * 1985-01-23 1987-09-29 Westinghouse Electric Corp. Testable, fault-tolerant power interface circuit for controlling plant process equipment
US4683105A (en) * 1985-10-31 1987-07-28 Westinghouse Electric Corp. Testable, fault-tolerant power interface circuit for normally de-energized loads
US4864285A (en) * 1988-05-11 1989-09-05 O G & E Method and apparatus for testing contacts to determine if opened or closed
DE4311883A1 (de) * 1993-04-10 1994-10-13 Tehalit Gmbh EIB-Modul
FR2704370B1 (fr) * 1993-04-19 1995-07-07 Matra Transport Relais statique de securite pour installation de commande ou de controle.
US6250936B1 (en) * 1998-08-05 2001-06-26 Cisco Technology, Inc. Single-port connection and circuitry accepting both balanced and unbalanced data signals
AT506138B1 (de) * 2007-11-22 2009-11-15 Fronius Int Gmbh Verfahren zur erkennung der betätigung eines bedienelements einer bedienfront und bedienfront mit zumindest einem bedienelement
CN105182173B (zh) * 2015-08-07 2018-08-28 国网山东省电力公司淄博供电公司 新型组合式互感器极性测试仪
MX2018011236A (es) * 2016-03-15 2019-05-16 Schlumberger Technology Bv Sistema y metodo para detectar filtraciones de corriente electrica en un sistema sismico de terrestre.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774106A (en) * 1971-09-15 1973-11-20 Federal Pacific Electric Co Electrical grounding system and ground integrity checker
US3869664A (en) * 1973-06-08 1975-03-04 Avtron Manufacturing Inc Improved surge tester for electrical windings

Also Published As

Publication number Publication date
US4272725A (en) 1981-06-09
CA1138045A (fr) 1982-12-21
GB2049960A (en) 1980-12-31
GB2049960B (en) 1983-03-09
DE3016287A1 (de) 1980-11-06

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