EP 1276355 B1 20070418 - Circuit arrangement to determine the pre-heating power
Title (en)
Circuit arrangement to determine the pre-heating power
Title (de)
Schaltungsanordnung zum Bestimmen eines Vorheizleistungswerts
Title (fr)
Circuit ballast pour determiner la puissance de préchauffage
Publication
Application
Priority
DE 10133515 A 20010710
Abstract (en)
[origin: EP1276355A2] The circuit arrangement has a half bridge arrangement whose output signal is fed to a load circuit (LK) for connection to a fluorescent lamp (LA) with helical electrodes, a preheating device for the electrodes and a preheating power determination device. The power flowing in the load circuit during preheating is determined by the power determination device. AN Independent claim is also included for the following: a method of operating a fluorescent lamp.
IPC 8 full level
H05B 41/298 (2006.01); H05B 41/295 (2006.01); H05B 41/36 (2006.01)
CPC (source: EP US)
H05B 41/295 (2013.01 - EP US); H05B 41/36 (2013.01 - EP US); Y10S 315/05 (2013.01 - EP US); Y10S 315/07 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1276355 A2 20030115; EP 1276355 A3 20030212; EP 1276355 B1 20070418; CA 2392978 A1 20030110; DE 10133515 A1 20030130; DE 50209956 D1 20070531; US 2003011328 A1 20030116; US 6657403 B2 20031202
DOCDB simple family (application)
EP 02010871 A 20020515; CA 2392978 A 20020709; DE 10133515 A 20010710; DE 50209956 T 20020515; US 17920602 A 20020626