EP 1677323 A1 20060705 - Low voltage power switch and method to avoid damage to contacts
Title (en)
Low voltage power switch and method to avoid damage to contacts
Title (de)
Niederspannungsleistungsschalter und Verfahren zum Vermeiden von Kontaktabbrand in denselben
Title (fr)
Disjoncteur de puissance à basse tension et procédé pour éviter la détérioration des contacts
Publication
Application
Priority
EP 04030922 A 20041228
Abstract (en)
The method reduces the risk of contacts burning in a lower voltage power switch having at least one controllable semiconductor device (10) and at least one electromechanical switch device (20) connected in parallel to the semiconductor device. The method involves identifying the start and/or end of a switch on/off signal for closing and/opening the switch device. The method also involves generating an oscillating control signal lasting a predetermined period of time, to repeatedly successively switch the semiconductor device on, as soon as the start/end of the switch on/of signal is recognized. Independent claims also cover the low voltage switch and the use of such a switch.
IPC 8 full level
CPC (source: EP)
H01H 9/542 (2013.01)
Citation (search report)
[X] EP 0926809 A1 19990630 - SCHNEIDER ELECTRIC SA [FR]
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)
DOCDB simple family (application)
EP 04030922 A 20041228; EP 2005056915 W 20051219