EP 1276120 B1 20100901 - Device to control an electromagnet
Title (en)
Device to control an electromagnet
Title (de)
Vorrichtung zur Ansteuerung eines Elektromagneten
Title (fr)
Appareil de commande d'un électroaimant
Publication
Application
Priority
DE 10134346 A 20010714
Abstract (en)
[origin: EP1276120A2] The control device has a switch (5), controlled by a clock source (4), connected in series with a solenoid (1) for operation of a magnetic armature (3) and closed for application of a DC voltage to the solenoid, which is temporarily interrupted upon detection of a given current through the solenoid, via a series current detector switch (7). An ohmic resistance (6) across the current detector switch determines the holding current for the armature in conjunction with the response threshold of the latter, a second ohmic resistance (9) connected in the current circuit under control of a second clock source (8), for providing a displacement current for the armature.
IPC 8 full level
H01F 7/18 (2006.01); E05B 47/00 (2006.01)
CPC (source: EP US)
E05B 47/00 (2013.01 - EP US); H01F 7/1844 (2013.01 - EP US); Y10T 70/60 (2015.04 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1276120 A2 20030115; EP 1276120 A3 20041110; EP 1276120 B1 20100901; CA 2393180 A1 20030114; CA 2393180 C 20100914; DE 10134346 A1 20030206; DE 10134346 B4 20100715; DE 50214620 D1 20101014; JP 2003124025 A 20030425; JP 3803309 B2 20060802; US 2003016102 A1 20030123; US 6798634 B2 20040928
DOCDB simple family (application)
EP 02014583 A 20020702; CA 2393180 A 20020712; DE 10134346 A 20010714; DE 50214620 T 20020702; JP 2002204473 A 20020712; US 19444902 A 20020711