EP 1733470 B1 20120815 - CIRCUIT DEVICE FOR OPERATING A MOTOR AND CORRESPONDING METHOD
Title (en)
CIRCUIT DEVICE FOR OPERATING A MOTOR AND CORRESPONDING METHOD
Title (de)
SCHALTVORRICHTUNG ZUM BETREIBEN EINES MOTORS UND ENTSPRECHENDES VERFAHREN
Title (fr)
DISPOSITIF DE COMMUTATION SERVANT A FAIRE FONCTIONNER UN MOTEUR, ET PROCEDE CORRESPONDANT
Publication
Application
Priority
- EP 2005051222 W 20050316
- DE 102004016739 A 20040405
Abstract (en)
[origin: WO2005099080A1] The aim of the invention is to provide an inexpensive electronic arc quenching system which reliably detects and processes a non-functional state of opening of the bypass contacts (1) of a circuit device for starting a motor for example due to malfunction or mechanical stress. For this purpose, the voltage across a parallel circuit device consisting of the bypass system (1) and a semiconductor device (2) is detected and the circuit elements (1, 3, 4) are controlled in accordance therewith. If the bypass system (1) is unintentionally opened, an arc voltage is applied to the bypass contacts. When this voltage is detected, the control unit (8) switches on the semiconductor device (2) so that the current flows across the semiconductor device (2) and the arc is extinguished.
IPC 8 full level
CPC (source: EP)
H01H 9/542 (2013.01); H01H 2009/546 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005099080 A1 20051020; DK 1733470 T3 20121203; EP 1733470 A1 20061220; EP 1733470 B1 20120815
DOCDB simple family (application)
EP 2005051222 W 20050316; DK 05717083 T 20050316; EP 05717083 A 20050316