Global Patent Index - EP 2132851 A1

EP 2132851 A1 20091216 - CIRCUIT ARRANGEMENT FOR LIMITING VOLTAGE

Title (en)

CIRCUIT ARRANGEMENT FOR LIMITING VOLTAGE

Title (de)

SCHALTUNGSANORDNUNG ZUR SPANNUNGSBEGRENZUNG

Title (fr)

ENSEMBLE CIRCUIT LIMITEUR DE TENSION

Publication

EP 2132851 A1 20091216 (DE)

Application

EP 08716452 A 20080312

Priority

  • EP 2008001946 W 20080312
  • DE 102007016704 A 20070404

Abstract (en)

[origin: WO2008122339A1] The invention relates to a circuit arrangement for forcing an instrinsically safe situation in an area at risk, comprising a first switching device in the series arm and a second switching device in the shunt arm. If an error occurs, which would violate the conditions of intrinsic safety, the first switching device is initially blocked and the second switching device is connected with a certain time delay so that the output terminals are short-circuited with each other. A monitoring device for monitoring the load conditions which are applied at the switching device in the series arm is also provided.

IPC 8 full level

H02H 9/00 (2006.01); H02H 3/02 (2006.01)

CPC (source: EP US)

H02H 9/008 (2013.01 - EP US); H02H 9/025 (2013.01 - EP US)

Citation (search report)

See references of WO 2008122339A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102007016704 A1 20081009; EP 2132851 A1 20091216; US 2010116633 A1 20100513; US 8649145 B2 20140211; WO 2008122339 A1 20081016

DOCDB simple family (application)

DE 102007016704 A 20070404; EP 08716452 A 20080312; EP 2008001946 W 20080312; US 59453708 A 20080312