EP 0225444 A1 19870616 - Process for the control of an electromagnet.
Title (en)
Process for the control of an electromagnet.
Title (de)
Verfahren zum Ansteuern eines Elektromagneten.
Title (fr)
Procédé de commande d'un électro-aimant.
Publication
Application
Priority
DE 3543055 A 19851205
Abstract (en)
1. Method for controlling an electromagnet (10) which attracts an armature, in which the electromagnet (10) in its holding phase is controlled with pulsed current from a power supply, the current being switched off when an upper threshold value is exceeded and is switched on when it falls below a lower threshold value, characterized in that the frequency of the pulsing is measured during the holding phase and compared with a preset frequency value, and an error signal is initiated when a maximum deviation is exceeded.
Abstract (de)
Es wird ein Verfahren und eine dazugehörige Schaltung beschrieben, um zu überwachen, ob der Anker eines Elektromagneten tatsächlich in die Arbeitsstellung angezogen wurde. Dazu wird die Frequenz des getakteten Haltestromes des Elektromagneten ausgewertet.
IPC 1-7
IPC 8 full level
F01L 9/04 (2006.01); F01L 9/20 (2021.01); H01F 7/18 (2006.01); H01H 47/32 (2006.01)
CPC (source: EP)
F01L 9/20 (2021.01); H01F 7/1805 (2013.01); H01H 47/325 (2013.01)
Citation (search report)
- [A] DE 2601799 A1 19770721 - LICENTIA GMBH
- [A] US 4123729 A 19781031 - BUETEMEISTER EARL H
- [A] DE 2208135 A1 19730906 - VOITH GETRIEBE KG
- [A] DE 2102595 A1 19720803 - SIEMENS AG
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
DE 3543055 C1 19861211; CA 1276679 C 19901120; DE 3675167 D1 19901129; EP 0225444 A1 19870616; EP 0225444 B1 19901024; ES 2018147 B3 19910401; JP H0368522 B2 19911028; JP S62134911 A 19870618
DOCDB simple family (application)
DE 3543055 A 19851205; CA 524701 A 19861205; DE 3675167 T 19861002; EP 86113598 A 19861002; ES 86113598 T 19861002; JP 27383786 A 19861117