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GB972316A - Electronic switch - Google Patents

Electronic switch

Info

Publication number
GB972316A
GB972316A GB532862A GB532862A GB972316A GB 972316 A GB972316 A GB 972316A GB 532862 A GB532862 A GB 532862A GB 532862 A GB532862 A GB 532862A GB 972316 A GB972316 A GB 972316A
Authority
GB
United Kingdom
Prior art keywords
load
transformer
feb
oscillator
air gap
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
GB532862A
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.)
Compagnie Electro Mecanique SA
Original Assignee
Compagnie Electro Mecanique 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 Compagnie Electro Mecanique SA filed Critical Compagnie Electro Mecanique SA
Publication of GB972316A publication Critical patent/GB972316A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • 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
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/30—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using a transformer for feedback, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Dc-Dc Converters (AREA)

Abstract

972,316. Transistor switching circuits. COMPAGNIE ELECTRO-MECANIQUE. Feb. 12, 1962 [Feb. 10, 1961], No. 5328/62. Heading H3T. A switch for connecting a power supply 5 to a load 2 comprises a transistor blocking oscillator connected in parallel with the load, variation in the air gap of the transformer Tf producing starting and stopping of the oscillator so as to effectively cut the supply off from the load or connect it to the load respectively, the mark to space ratio of the oscillator output being large. As described, the transformer comprises a potshaped dust core moved by a push-button. In the oscillating condition of the circuit the pulses are absorbed by capacitor C 2 which produces an effective low impedance shunt across the load 2. The transformer may be provided with a large number of turns so that, on opening the air gap, oscillation does not cease immediately, but continues until the end of an oscillation period. A base bias circuit including a N.T.C. resistor may be provided for temperature stabilization, Fig. 2 (not shown).
GB532862A 1961-02-10 1962-02-12 Electronic switch Expired GB972316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR852275A FR1288215A (en) 1961-02-10 1961-02-10 Electronic switch

Publications (1)

Publication Number Publication Date
GB972316A true GB972316A (en) 1964-10-14

Family

ID=8748535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB532862A Expired GB972316A (en) 1961-02-10 1962-02-12 Electronic switch

Country Status (4)

Country Link
CH (1) CH374107A (en)
DE (1) DE1196704B (en)
FR (1) FR1288215A (en)
GB (1) GB972316A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783774A1 (en) * 2005-11-07 2007-05-09 Acard Technology Corp. Wire-free sensing apparatus for disc system
WO2008031748A2 (en) * 2006-09-15 2008-03-20 Paul Hettich Gmbh & Co. Kg Sensor device of a deployment mechanism for furniture parts
US7606457B2 (en) 2005-09-26 2009-10-20 Acard Technology Corp. Wire-free sensing apparatus for disc system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1513058B1 (en) * 1966-08-27 1970-09-24 Siemens Ag Electronic proximity switch
DE1265785B (en) * 1966-09-17 1968-04-11 Bosch Gmbh Robert Electronic proximity switch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088542B (en) * 1958-10-21 1960-09-08 Wilhelm Husmeier Electronic switch
DE1088531B (en) * 1959-09-02 1960-09-08 Siemens Ag Circuit arrangement for inductivities to be de-energized by short-circuiting the excitation circuit, in particular relays or control magnets in teleprinter systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7606457B2 (en) 2005-09-26 2009-10-20 Acard Technology Corp. Wire-free sensing apparatus for disc system
EP1783774A1 (en) * 2005-11-07 2007-05-09 Acard Technology Corp. Wire-free sensing apparatus for disc system
WO2008031748A2 (en) * 2006-09-15 2008-03-20 Paul Hettich Gmbh & Co. Kg Sensor device of a deployment mechanism for furniture parts
WO2008031748A3 (en) * 2006-09-15 2009-01-29 Hettich Paul Gmbh & Co Kg Sensor device of a deployment mechanism for furniture parts

Also Published As

Publication number Publication date
FR1288215A (en) 1962-03-24
CH374107A (en) 1963-12-31
DE1196704B (en) 1965-07-15

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