EP 0663789 B1 19991215 - Preheat start-up device for fluorescent lamps
Title (en)
Preheat start-up device for fluorescent lamps
Title (de)
Vorheizstartschaltung für Leuchtstofflampen
Title (fr)
Circuit d'amorçage, avec préchauffage, de lampes fluorescentes
Publication
Application
Priority
CN 94202144 U 19940118
Abstract (en)
[origin: EP0663789A1] A fluorescent lamp preheating start-up device to be used in the preheating start-up of fluorescent lamp. It consists of hot bonded temperature sensitive resistance layer (sheet) and voltage sensitive switching resistance layer (sheet), a silver conductive layer is coated between the two layers, and the periphery thereof is sealed with a sealing film. A lead is led out from each of the surface electrodes of said two resistance layers (sheets) of different characteristics, respectively. In operation, it is serially connected in the loop of the filament after the parallel connection of the present device with the resonant capacitor C in the electronic ballast. The device has both the characteristic of temperature resistance and the function of voltage switch. In normal operation of the light tube, the power consumption of the present device is only 0.4 to 5% of that of an ordinary PTC device. In addition, the self-temperature-rise is low and the starting time is appropriate. <IMAGE>
IPC 1-7
IPC 8 full level
H05B 41/295 (2006.01)
CPC (source: EP)
H05B 41/295 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0663789 A1 19950719; EP 0663789 B1 19991215; AT E187864 T1 20000115; CN 2183650 Y 19941123; DE 69422145 D1 20000120; DE 69422145 T2 20020627
DOCDB simple family (application)
EP 94305456 A 19940722; AT 94305456 T 19940722; CN 94202144 U 19940118; DE 69422145 T 19940722