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FR2227688A1 - Push button contactless electrical switching - avoids contact wear noise and bounce using light beam and window - Google Patents

Push button contactless electrical switching - avoids contact wear noise and bounce using light beam and window

Info

Publication number
FR2227688A1
FR2227688A1 FR7414830A FR7414830A FR2227688A1 FR 2227688 A1 FR2227688 A1 FR 2227688A1 FR 7414830 A FR7414830 A FR 7414830A FR 7414830 A FR7414830 A FR 7414830A FR 2227688 A1 FR2227688 A1 FR 2227688A1
Authority
FR
France
Prior art keywords
push button
window
light beam
bounce
electrical switching
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.)
Granted
Application number
FR7414830A
Other languages
French (fr)
Other versions
FR2227688B3 (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.)
MAECKER ELAN SCHALTELEMENTE
Original Assignee
MAECKER ELAN SCHALTELEMENTE
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
Priority claimed from DE19732349164 external-priority patent/DE2349164A1/en
Application filed by MAECKER ELAN SCHALTELEMENTE filed Critical MAECKER ELAN SCHALTELEMENTE
Publication of FR2227688A1 publication Critical patent/FR2227688A1/en
Application granted granted Critical
Publication of FR2227688B3 publication Critical patent/FR2227688B3/fr
Granted 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
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • 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
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices

Landscapes

  • Push-Button Switches (AREA)

Abstract

The push button operates the switch by moving a window into the path of a light beam which is normally broken, the movement being caused by a push button. The light source can be a photo-emissive diode running off a low voltage and the light receptor may be a photo-sensitive resistor placed in the bias network of a transistor switching circuit such as a Schmidt trigger. The mechanical and transistor components are mounted either singly or as a set of switches in a box and are unaffected by vitration and magnetic disturbances, giving electrically noiseless switching.
FR7414830A 1973-04-27 1974-04-29 Push button contactless electrical switching - avoids contact wear noise and bounce using light beam and window Granted FR2227688A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7316025 1973-04-27
DE19732349164 DE2349164A1 (en) 1973-09-29 1973-09-29 Push button contactless electrical switching - avoids contact wear noise and bounce using light beam and window

Publications (2)

Publication Number Publication Date
FR2227688A1 true FR2227688A1 (en) 1974-11-22
FR2227688B3 FR2227688B3 (en) 1977-03-04

Family

ID=25765889

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7414830A Granted FR2227688A1 (en) 1973-04-27 1974-04-29 Push button contactless electrical switching - avoids contact wear noise and bounce using light beam and window

Country Status (2)

Country Link
FR (1) FR2227688A1 (en)
IT (1) IT1010043B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000743A1 (en) * 1985-08-02 1987-02-12 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4786005A (en) * 1985-11-15 1988-11-22 Scott Paper Company Apparatus for dispensing sheet material
DE102016110785A1 (en) * 2016-04-26 2017-10-26 Ching-Hsiung Chu Pressure switch with tone feedback

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000743A1 (en) * 1985-08-02 1987-02-12 Louis Hoffman Associates Inc. Method and apparatus for dispensing flowable material
US4786005A (en) * 1985-11-15 1988-11-22 Scott Paper Company Apparatus for dispensing sheet material
DE102016110785A1 (en) * 2016-04-26 2017-10-26 Ching-Hsiung Chu Pressure switch with tone feedback
DE102016110785B4 (en) * 2016-04-26 2017-11-23 Ching-Hsiung Chu Pressure switch with tone feedback

Also Published As

Publication number Publication date
IT1010043B (en) 1977-01-10
FR2227688B3 (en) 1977-03-04

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