EP 0922376 A1 19990616 - ELECTRONIC BALLAST FOR GAS DISCHARGE LAMPS
Title (en)
ELECTRONIC BALLAST FOR GAS DISCHARGE LAMPS
Title (de)
ELEKTRONISCHES VORSCHALTGERÄT FÜR GASENTLADUNGSLAMPEN
Title (fr)
ALLAST ELECTRONIQUE POUR LAMPES A DECHARGE
Publication
Application
Priority
- DE 19634850 A 19960828
- EP 9704150 W 19970730
Abstract (en)
[origin: WO9809483A1] An electronic ballast for gas discharge lamps has a rectifier (1) that can be connected to a voltage supply source, a condenser circuit which is connected to the rectifier and consists of a first capacitor (2) and a second capacitor (3), a series circuit which is connected to the capacitor connections and consists of a first controllable switch (4) and a second controllable switch (5) which can be alternately switched, and a load circuit which is connected to the connection point between the first and second switches and consists of a series resonance circuit composed of a resonance inductance (6) and of a resonance capacitor (7), as well as of a gas discharge lamp (8) connected thereto. In addition, a transformer is provided whose first winding (9) is connected to the connection point between the first and second capacitor (2, 3) and whose second winding (10) is connected to the resonance capacitor (7).
IPC 1-7
IPC 8 full level
H05B 41/292 (2006.01); H05B 41/295 (2006.01)
CPC (source: EP)
H05B 41/295 (2013.01)
Citation (search report)
See references of WO 9809483A1
Designated contracting state (EPC)
AT CH DE FR GB IT LI
DOCDB simple family (publication)
WO 9809483 A1 19980305; AT E214863 T1 20020415; AU 4453097 A 19980319; DE 19634850 A1 19980305; DE 59706691 D1 20020425; EP 0922376 A1 19990616; EP 0922376 B1 20020320; ZA 977311 B 19980302
DOCDB simple family (application)
EP 9704150 W 19970730; AT 97942836 T 19970730; AU 4453097 A 19970730; DE 19634850 A 19960828; DE 59706691 T 19970730; EP 97942836 A 19970730; ZA 977311 A 19970814