CA1005561A - Excitation control circuit for electromagnet coil - Google Patents

Excitation control circuit for electromagnet coil

Info

Publication number
CA1005561A
CA1005561A CA185,354A CA185354A CA1005561A CA 1005561 A CA1005561 A CA 1005561A CA 185354 A CA185354 A CA 185354A CA 1005561 A CA1005561 A CA 1005561A
Authority
CA
Canada
Prior art keywords
control circuit
excitation control
electromagnet coil
electromagnet
excitation
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
CA185,354A
Other versions
CA185354S (en
Inventor
Julian C. Kampf
Kenneth W. Retzer
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
Application granted granted Critical
Publication of CA1005561A publication Critical patent/CA1005561A/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
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
CA185,354A 1972-12-21 1973-11-08 Excitation control circuit for electromagnet coil Expired CA1005561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31744872A 1972-12-21 1972-12-21

Publications (1)

Publication Number Publication Date
CA1005561A true CA1005561A (en) 1977-02-15

Family

ID=23233692

Family Applications (1)

Application Number Title Priority Date Filing Date
CA185,354A Expired CA1005561A (en) 1972-12-21 1973-11-08 Excitation control circuit for electromagnet coil

Country Status (3)

Country Link
US (1) US3790862A (en)
CA (1) CA1005561A (en)
GB (1) GB1449198A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732512C2 (en) * 1977-07-19 1979-09-13 Frankl & Kirchner Gmbh & Co Kg Fabrik Fuer Elektromotoren U. Elektrische Apparate, 6830 Schwetzingen Protective circuit arrangement for an electronic switching amplifier in front of an electromagnet
US4204240A (en) * 1978-10-26 1980-05-20 Fischer & Porter Co. High-voltage impulse driver for electromagnetic flowmeter
US4344102A (en) * 1980-09-18 1982-08-10 Square D Company Anti-telegraph control circuit for electromagnet coil
US4510550A (en) * 1982-12-16 1985-04-09 At&T Bell Laboratories Relay driver
DE3321086A1 (en) * 1983-06-10 1984-12-13 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR REDUCING THE RESIDUAL VOLTAGE ON IMPERFECTLY DISCONNECTED ELECTRICAL CONSUMERS
GB2209640B (en) * 1987-09-08 1992-05-20 Crabtree Electrical Ind Ltd Improvements relating to relays
US4947284A (en) * 1989-03-06 1990-08-07 Square D Company Field-installable heavy duty undervoltage release
DE4209747A1 (en) * 1992-03-25 1993-09-30 Siemens Ag Current limiting circuit e.g. for relay or other inductive load - includes reference Zener diode to earth from control electrode of transistor switch having load in collector circuit
US6198614B1 (en) * 1998-09-30 2001-03-06 Rockwell Technologies, Llc Electrical contactor and method for controlling same
FR2943170B1 (en) * 2009-03-10 2013-03-22 Areva T & D Sa MAGNETIC ACTUATOR CIRCUIT
US11415629B2 (en) 2019-09-30 2022-08-16 Rockwell Automation Technologies, Inc. Relay coil drive circuit
US11676786B2 (en) * 2020-04-09 2023-06-13 Rockwell Automation Technologies, Inc. Systems and methods for controlling contactor open time

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB982651A (en) * 1960-04-23 1965-02-10 Wilhelm Binder Apparatus for supplying energising current to direct-current electro-magnets
NL126089C (en) * 1964-01-17
US3516526A (en) * 1968-06-17 1970-06-23 Singer Co Control circuits for electromagnetic clutch-brake driving devices

Also Published As

Publication number Publication date
GB1449198A (en) 1976-09-15
US3790862A (en) 1974-02-05

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