GB1119957A - Improvements in or relating to operating circuit arrangements for electromagnetic devices - Google Patents

Improvements in or relating to operating circuit arrangements for electromagnetic devices

Info

Publication number
GB1119957A
GB1119957A GB3031567A GB3031567A GB1119957A GB 1119957 A GB1119957 A GB 1119957A GB 3031567 A GB3031567 A GB 3031567A GB 3031567 A GB3031567 A GB 3031567A GB 1119957 A GB1119957 A GB 1119957A
Authority
GB
United Kingdom
Prior art keywords
capacitor
supply
series
current
relating
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
GB3031567A
Inventor
Alfred Knappe
Gunther Arold
Leo Gorres
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.)
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
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 Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Publication of GB1119957A publication Critical patent/GB1119957A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/043—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current making use of an energy accumulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator
    • 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
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)

Abstract

1,119,957. Supply circuits for inductive loads. GRUNDIG E.M.V. ELEKTRO - MECHANISCHE VERSUCHSANSTALT INH. MAX GRUNDIG. 30 June, 1967 [1 July, 1966], No. 30315/67. Heading H2H. [Also in Divisions F2 and H3] A transistor T 1 switches current to an inductive load MV such as a clutch winding and a charged capacitor C is connected by a further transistor in series with the supply source to speed the build-up of current. The capacitor of Fig. 1 charges via D 1 and R 1 in the polarity indicated. When T 1 becomes conductive, T 2 also conducts so that the supply and the capacitor voltage act in series-aiding relation. When the capacitor has discharged, diode D 1 conducts to provide the maintaining current. In Fig. 2, the charged capacitor C acts in series aiding relation to the supply when T 1 and T 2 conduct. When conduction is terminated, the energy in the load MV is used to recharge the capacitor through D 1 and D 2 .
GB3031567A 1966-07-01 1967-06-30 Improvements in or relating to operating circuit arrangements for electromagnetic devices Expired GB1119957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0047331 1966-07-01

Publications (1)

Publication Number Publication Date
GB1119957A true GB1119957A (en) 1968-07-17

Family

ID=7128324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3031567A Expired GB1119957A (en) 1966-07-01 1967-06-30 Improvements in or relating to operating circuit arrangements for electromagnetic devices

Country Status (3)

Country Link
CH (1) CH468064A (en)
DE (1) DE1538527A1 (en)
GB (1) GB1119957A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144280A (en) * 1983-07-29 1985-02-27 Bosch Gmbh Robert Circuit means for rapid switching of a load
GB2310333A (en) * 1996-02-15 1997-08-20 Motorola Ltd Snubber circuit with energy recovery for boost voltage
EP1462683A2 (en) * 2003-03-26 2004-09-29 LuK Lamellen und Kupplungsbau Beteiligungs KG Device and method to control a hold magnet of a park-lock mechanism of a vehicle transmission

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144280A (en) * 1983-07-29 1985-02-27 Bosch Gmbh Robert Circuit means for rapid switching of a load
GB2310333A (en) * 1996-02-15 1997-08-20 Motorola Ltd Snubber circuit with energy recovery for boost voltage
GB2310333B (en) * 1996-02-15 2000-10-11 Motorola Ltd Switching circuit for an inductive load
EP1462683A2 (en) * 2003-03-26 2004-09-29 LuK Lamellen und Kupplungsbau Beteiligungs KG Device and method to control a hold magnet of a park-lock mechanism of a vehicle transmission
EP1462683A3 (en) * 2003-03-26 2005-11-23 LuK Lamellen und Kupplungsbau Beteiligungs KG Device and method to control a hold magnet of a park-lock mechanism of a vehicle transmission
US7442149B2 (en) 2003-03-26 2008-10-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Device and method for controlling a parking lock holding magnet

Also Published As

Publication number Publication date
CH468064A (en) 1969-01-31
DE1538527A1 (en) 1970-07-16

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