EP 0353533 B1 19921021 - END STAGE CIRCUIT ARRANGEMENT FOR CONTROLLING ELECTROMAGNETIC ACTUATORS
Title (en)
END STAGE CIRCUIT ARRANGEMENT FOR CONTROLLING ELECTROMAGNETIC ACTUATORS
Publication
Application
Priority
DE 3826087 A 19880801
Abstract (en)
[origin: EP0353533A1] In an end stage circuit arrangement for controlling electromagnetic actuators, a part of the switch-off energy, which is induced in the exciter winding (1) of the electromagnetic actuator by the switch-off operations carried out during operation, is picked up via a decoupler diode (19), in order to generate an auxiliary voltage (-UH or +UH) in cooperation with an auxiliary voltage open-loop or closed-loop control circuit (25). The auxiliary voltage open-loop or closed-loop control circuit (25) controls a switch element (15) which is switched in such a way that the switch-off energy for generating the auxiliary voltage is only used until a desired voltage value is reached. When this voltage value is exceeded, the switch element (15) acts like a free-wheeling diode connected to the exciter winding (1) for reducing induction voltages. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 7/18 (2006.01)
CPC (source: EP)
H01F 7/18 (2013.01)
Designated contracting state (EPC)
DE FR IT SE
DOCDB simple family (publication)
EP 0353533 A1 19900207; EP 0353533 B1 19921021; DE 3826087 A1 19900208; DE 58902496 D1 19921126
DOCDB simple family (application)
EP 89113115 A 19890718; DE 3826087 A 19880801; DE 58902496 T 19890718