IT1022723B - CIRCUIT FOR SWITCHING AN ELECTROMAGNET FROM ITS STARTING CURRENT TO A MAINTENANCE CURRENT - Google Patents

CIRCUIT FOR SWITCHING AN ELECTROMAGNET FROM ITS STARTING CURRENT TO A MAINTENANCE CURRENT

Info

Publication number
IT1022723B
IT1022723B IT2822774A IT2822774A IT1022723B IT 1022723 B IT1022723 B IT 1022723B IT 2822774 A IT2822774 A IT 2822774A IT 2822774 A IT2822774 A IT 2822774A IT 1022723 B IT1022723 B IT 1022723B
Authority
IT
Italy
Prior art keywords
current
electromagnet
switching
circuit
maintenance
Prior art date
Application number
IT2822774A
Other languages
Italian (it)
Original Assignee
Kromschroeder Ag G
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 DE19732353396 external-priority patent/DE2353396A1/en
Priority claimed from DE2420037A external-priority patent/DE2420037A1/en
Application filed by Kromschroeder Ag G filed Critical Kromschroeder Ag G
Application granted granted Critical
Publication of IT1022723B publication Critical patent/IT1022723B/en

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
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
IT2822774A 1973-10-25 1974-10-09 CIRCUIT FOR SWITCHING AN ELECTROMAGNET FROM ITS STARTING CURRENT TO A MAINTENANCE CURRENT IT1022723B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732353396 DE2353396A1 (en) 1973-10-25 1973-10-25 Electromagnet switching from attraction to holding excitation - uses only one winding designed for reduced holding current and accepting initial attraction current
DE2420037A DE2420037A1 (en) 1974-04-25 1974-04-25 Electromagnet excitation circuit - holding current is reduced by phase chopping control after initial full power excitation

Publications (1)

Publication Number Publication Date
IT1022723B true IT1022723B (en) 1978-04-20

Family

ID=25766002

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2822774A IT1022723B (en) 1973-10-25 1974-10-09 CIRCUIT FOR SWITCHING AN ELECTROMAGNET FROM ITS STARTING CURRENT TO A MAINTENANCE CURRENT

Country Status (4)

Country Link
FR (1) FR2249414B1 (en)
GB (1) GB1482815A (en)
IT (1) IT1022723B (en)
NL (1) NL7411941A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170669A (en) * 1985-02-05 1986-08-06 Era Patents Ltd Solenoid energisation circuit
US5128825A (en) * 1990-02-01 1992-07-07 Westinghouse Electric Corp. Electrical contactor with controlled closure characteristic

Also Published As

Publication number Publication date
FR2249414A1 (en) 1975-05-23
GB1482815A (en) 1977-08-17
NL7411941A (en) 1975-04-29
FR2249414B1 (en) 1979-02-16

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