ZA834105B - Proximity switch circuit - Google Patents

Proximity switch circuit

Info

Publication number
ZA834105B
ZA834105B ZA834105A ZA834105A ZA834105B ZA 834105 B ZA834105 B ZA 834105B ZA 834105 A ZA834105 A ZA 834105A ZA 834105 A ZA834105 A ZA 834105A ZA 834105 B ZA834105 B ZA 834105B
Authority
ZA
South Africa
Prior art keywords
switch circuit
proximity switch
proximity
circuit
switch
Prior art date
Application number
ZA834105A
Other languages
English (en)
Inventor
Geoffrey John Harris
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Publication of ZA834105B publication Critical patent/ZA834105B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/951—Measures for supplying operating voltage to the detector circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
    • H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
    • H03K17/9547—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable amplitude
ZA834105A 1982-06-11 1983-06-06 Proximity switch circuit ZA834105B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8217084 1982-06-11

Publications (1)

Publication Number Publication Date
ZA834105B true ZA834105B (en) 1984-02-29

Family

ID=10530989

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA834105A ZA834105B (en) 1982-06-11 1983-06-06 Proximity switch circuit

Country Status (10)

Country Link
US (1) US4920281A (it)
EP (1) EP0111517A1 (it)
JP (1) JPS59501040A (it)
AU (1) AU573169B1 (it)
CA (1) CA1216041A (it)
ES (1) ES523161A0 (it)
IT (2) IT1159035B (it)
MX (1) MX155394A (it)
WO (1) WO1983004458A1 (it)
ZA (1) ZA834105B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA834105B (en) * 1982-06-11 1984-02-29 Square D Co Proximity switch circuit
GB2180938B (en) * 1985-09-24 1990-02-28 Square D Co Low leakage, a c proximity switch circuit
DE3536925A1 (de) * 1985-10-17 1987-04-23 Balluff Gebhard Feinmech Zweidraht-schalter mit einem leistungstranistor
JPH069336B2 (ja) * 1987-04-03 1994-02-02 本田技研工業株式会社 高周波発振型近接スイツチ
EP0299259B1 (de) * 1987-07-11 1994-03-09 i f m electronic gmbh Elektronisches, vorzugsweise berührungslos arbeitendes Schaltgerät
FR2668257B1 (fr) * 1990-10-18 1994-05-13 Telemecanique Detecteur du type deux fils a tension regulee.
EP0541881B1 (en) * 1991-11-15 1995-07-19 Saqr Majed El Marry Intrusion detection apparatus
US5588593A (en) * 1995-06-05 1996-12-31 C.H. Heist Corp Safety apparatus for high pressure liquid jet system
US7174377B2 (en) * 2002-01-16 2007-02-06 Xerox Corporation Method and apparatus for collaborative document versioning of networked documents
US6945117B2 (en) * 2003-08-29 2005-09-20 Dana Corporation Gasket having a fiber-optic pressure sensor assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743865A (en) * 1971-12-29 1973-07-03 W Riechmann Proximity switch
US3935542A (en) * 1972-01-22 1976-01-27 Robert Buck Contactless oscillator-type proximity sensor with constant-voltage impedance
US3747010A (en) * 1972-09-21 1973-07-17 R Buck Power supply for oscillator circuit of contactless proximity indicator
IT975218B (it) * 1972-10-11 1974-07-20 Olivetti & Co Spa Sensore di prossimita
DE2356490C2 (de) * 1973-11-13 1975-10-02 Robert 7995 Neukirch Buck Elektronisches, vorzugsweise berührungslos arbeitendes Schaltgerät
US4138709A (en) * 1975-10-22 1979-02-06 Square D Company Proximity switch
DE3041840C2 (de) * 1980-11-06 1989-01-12 Honeywell Gmbh, 6050 Offenbach Zweidraht-Speiseschaltung
ZA834105B (en) * 1982-06-11 1984-02-29 Square D Co Proximity switch circuit

Also Published As

Publication number Publication date
US4920281A (en) 1990-04-24
IT8367643A0 (it) 1983-06-10
IT8353452V0 (it) 1983-06-10
MX155394A (es) 1988-02-26
EP0111517A1 (en) 1984-06-27
IT1159035B (it) 1987-02-25
CA1216041A (en) 1986-12-30
AU573169B1 (en) 1988-06-02
ES8405192A1 (es) 1984-05-16
JPS59501040A (ja) 1984-06-07
ES523161A0 (es) 1984-05-16
WO1983004458A1 (en) 1983-12-22

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