GB2263549B - Improvements in and relating to proximity switches - Google Patents

Improvements in and relating to proximity switches

Info

Publication number
GB2263549B
GB2263549B GB9127572A GB9127572A GB2263549B GB 2263549 B GB2263549 B GB 2263549B GB 9127572 A GB9127572 A GB 9127572A GB 9127572 A GB9127572 A GB 9127572A GB 2263549 B GB2263549 B GB 2263549B
Authority
GB
United Kingdom
Prior art keywords
relating
proximity switches
proximity
switches
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 - Fee Related
Application number
GB9127572A
Other versions
GB9127572D0 (en
GB2263549A (en
Inventor
Douglas William Hudson Calder
Arthur James Bizley
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.)
Schneider Electric USA Inc
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
Priority to GB9127572A priority Critical patent/GB2263549B/en
Publication of GB9127572D0 publication Critical patent/GB9127572D0/en
Priority to PCT/US1992/011231 priority patent/WO1993013599A1/en
Priority to US08/244,828 priority patent/US5463333A/en
Priority to EP93902771A priority patent/EP0619925A4/en
Publication of GB2263549A publication Critical patent/GB2263549A/en
Application granted granted Critical
Publication of GB2263549B publication Critical patent/GB2263549B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0233—Bistable circuits
    • H03K3/02337—Bistables with hysteresis, e.g. Schmitt trigger
GB9127572A 1991-12-31 1991-12-31 Improvements in and relating to proximity switches Expired - Fee Related GB2263549B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9127572A GB2263549B (en) 1991-12-31 1991-12-31 Improvements in and relating to proximity switches
PCT/US1992/011231 WO1993013599A1 (en) 1991-12-31 1992-12-28 Integrator having switched hysteresis for proximity switches
US08/244,828 US5463333A (en) 1991-12-31 1992-12-28 Proximity switches
EP93902771A EP0619925A4 (en) 1991-12-31 1992-12-28 Integrator having switched hysteresis for proximity switches.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9127572A GB2263549B (en) 1991-12-31 1991-12-31 Improvements in and relating to proximity switches

Publications (3)

Publication Number Publication Date
GB9127572D0 GB9127572D0 (en) 1992-02-19
GB2263549A GB2263549A (en) 1993-07-28
GB2263549B true GB2263549B (en) 1996-04-03

Family

ID=10706945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9127572A Expired - Fee Related GB2263549B (en) 1991-12-31 1991-12-31 Improvements in and relating to proximity switches

Country Status (3)

Country Link
EP (1) EP0619925A4 (en)
GB (1) GB2263549B (en)
WO (1) WO1993013599A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015117436A1 (en) * 2014-07-21 2015-08-13 深圳市中兴微电子技术有限公司 Control circuit and terminal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07140258A (en) * 1993-11-19 1995-06-02 Aisin Seiki Co Ltd Device for detecting seated person on toilet seat
DE19803187C3 (en) * 1998-01-28 2003-06-18 Siemens Ag Device for recognizing the position of an element movable between two end positions, in particular a lock bolt of a motor vehicle lock, and method for actuating such a device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806882A (en) * 1985-06-20 1989-02-21 Siemens Aktiengesellschaft Oscillator/demodulator circuit for an inductive proximity switch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440448A (en) * 1965-11-01 1969-04-22 Hewlett Packard Co Generator for producing symmetrical triangular waves of variable repetition rate
US4384219A (en) * 1980-12-29 1983-05-17 Motorola, Inc. Voltage comparator hysteresis control circuit
JPS5944123A (en) * 1982-09-07 1984-03-12 Nec Corp Comparator circuit
JPS6046120A (en) * 1983-08-23 1985-03-12 Yamatake Honeywell Co Ltd Proximity switch
DE4016316B4 (en) * 1990-05-21 2004-02-12 Robert Bosch Gmbh Evaluation circuit for the signals of a signal source
JPH0646120A (en) * 1992-04-21 1994-02-18 Nec Corp Multiple telephone set

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806882A (en) * 1985-06-20 1989-02-21 Siemens Aktiengesellschaft Oscillator/demodulator circuit for an inductive proximity switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015117436A1 (en) * 2014-07-21 2015-08-13 深圳市中兴微电子技术有限公司 Control circuit and terminal
US10033380B2 (en) 2014-07-21 2018-07-24 Sanechips Technology Co., Ltd Control circuit and terminal

Also Published As

Publication number Publication date
EP0619925A4 (en) 1995-07-19
WO1993013599A1 (en) 1993-07-08
EP0619925A1 (en) 1994-10-19
GB9127572D0 (en) 1992-02-19
GB2263549A (en) 1993-07-28

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Legal Events

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

Effective date: 19961231