EP 1956621 B1 20100811 - Relay switching-on circuit
Title (en)
Relay switching-on circuit
Title (de)
Relais-Einschaltkreis
Title (fr)
Circuit de mise en marche de relais
Publication
Application
Priority
EP 07290182 A 20070212
Abstract (en)
[origin: EP1956621A1] Disclosed is a relay switching-on circuit, comprising: a relay (K1) having a first terminal (K11) and a second terminal (K12); a first switching element (T1) connected between the first terminal and a first operating voltage (+VCC); a second switching element (T2) connected between the second terminal and a second operating voltage (-VCC), wherein said first and second switching elements are operatively connected with a respective control channel (CH1, CH2) for controlling a respective switching action of said switching elements. The proposed circuit further comprises: a first resistor (R1) connected between said first operating voltage and one of said first and second terminals; a second resistor (R2) connected between said second operating voltage and the other one of said first and second terminals; and a comparator unit (CU) connected with said first and second terminals for comparing a potential at said first and second terminals with a respective reference potential (UREF1, UREF2) in a switched-off state of the relay, wherein said comparator unit is configured to issue at least one fault disclosure signal (FDS1, FDS2) in response to a relation between the potential at said first and/or second terminal and the corresponding reference potential.
IPC 8 full level
H01H 47/00 (2006.01)
CPC (source: EP)
H01H 47/002 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1956621 A1 20080813; EP 1956621 B1 20100811; DE 602007008354 D1 20100923
DOCDB simple family (application)
EP 07290182 A 20070212; DE 602007008354 T 20070212