EP 0750447 B1 19980715 - Circuit arrangement for the ignition of a fluorescent lamp
Title (en)
Circuit arrangement for the ignition of a fluorescent lamp
Title (de)
Schaltungsanordnung zur Zündung einer Leuchtstofflampe
Title (fr)
Circuit pour allumer une lampe fluorescente
Publication
Application
Priority
DE 19522675 A 19950622
Abstract (en)
[origin: EP0750447A1] The circuit has a mains filter (16), an HF oscillator (18) and an ignition circuit (20). Each heater electrode (12) has a corresp. resistance (22) connected in parallel with it. Each resistance is a negative temp. coefficient resistance. The negative temp. coefficient resistances are low impedance when their parallel heater electrodes become open circuit. The mains filter input is connected to the mains supply. The ignition circuit is connected in parallel with the lamp.
IPC 1-7
IPC 8 full level
H05B 41/04 (2006.01); H05B 41/298 (2006.01)
CPC (source: EP)
H05B 41/2988 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0750447 A1 19961227; EP 0750447 B1 19980715; AT E168519 T1 19980815; DE 19522675 A1 19970102; DE 59600341 D1 19980820
DOCDB simple family (application)
EP 96109379 A 19960612; AT 96109379 T 19960612; DE 19522675 A 19950622; DE 59600341 T 19960612