EP 0594880 B1 19980128 - Process and circuit for starting fluorescent lamps at a given temperature of the preheating electrodes
Title (en)
Process and circuit for starting fluorescent lamps at a given temperature of the preheating electrodes
Title (de)
Verfahren und Schaltungsanordnung zum Zünden von Leuchtstofflampen bei vorbestimmter Temperatur der Lampenkathoden
Title (fr)
Procédé et circuit d'amorçage de lampes fluorescentes lorsque les électrodes de préchauffage ont atteint une température donnée
Publication
Application
Priority
EP 92118404 A 19921028
Abstract (en)
[origin: EP0594880A1] For determining the effective cathode temperature of a lamp during the preheating phase, the resistance of the lamp cathode is measured. The lamp is started only when the temperature has reached for example 600@C. As a result, the service life of lamps can be increased considerably.
IPC 1-7
IPC 8 full level
H05B 41/04 (2006.01); H05B 41/295 (2006.01)
CPC (source: EP US)
H05B 41/046 (2013.01 - EP US); H05B 41/295 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0594880 A1 19940504; EP 0594880 B1 19980128; AT E162922 T1 19980215; DE 59209173 D1 19980305; US 5455486 A 19951003
DOCDB simple family (application)
EP 92118404 A 19921028; AT 92118404 T 19921028; DE 59209173 T 19921028; US 14152493 A 19931027