EP 1901591 B1 20090729 - Ignition of gas discharge lamps in variable ambient conditions
Title (en)
Ignition of gas discharge lamps in variable ambient conditions
Title (de)
Zündung von Gasentladungslampen unter variablen Umgebungsbedingungen
Title (fr)
Allumage de lampes à décharge dans des conditions environnementales variables
Publication
Application
Priority
DE 102006042954 A 20060913
Abstract (en)
[origin: EP1901591A1] The method involves overlaying a direct current in a fluorescent lamp and determining a direct current portion of a fluorescent lamp current. A lamp power output of the fluorescent lamp is controlled with the determined direct current portion as a control variable and a variable analog or digital direct current-reference variable. An operation of the fluorescent lamp is controlled before igniting the lamp based on the direct current portion as the control variable. An independent claim is also included for an operating device for controlling a fluorescent lamp.
IPC 8 full level
H05B 41/392 (2006.01)
CPC (source: EP)
H05B 41/3921 (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 LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1901591 A1 20080319; EP 1901591 B1 20090729; AT E438286 T1 20090815; CN 101146393 A 20080319; CN 101146393 B 20110706; DE 102006042954 A1 20080327; DE 502007001177 D1 20090910
DOCDB simple family (application)
EP 07113856 A 20070806; AT 07113856 T 20070806; CN 200710149586 A 20070912; DE 102006042954 A 20060913; DE 502007001177 T 20070806