EP 2138014 A1 20091230 - CIRCUIT ARRANGEMENT FOR IGNITING AND OPERATING A DISCHARGE LAMP
Title (en)
CIRCUIT ARRANGEMENT FOR IGNITING AND OPERATING A DISCHARGE LAMP
Title (de)
SCHALTUNGSANORDNUNG ZUR ZÜNDUNG UND ZUM BETRIEB EINER ENTLADUNGSLAMPE
Title (fr)
CIRCUITERIE POUR L'ALLUMAGE ET L'UTILISATION D'UNE LAMPE À DÉCHARGE
Publication
Application
Priority
EP 2007053983 W 20070424
Abstract (en)
[origin: WO2008128577A1] The invention relates to a circuit arrangement for igniting and operating a gas discharge lamp. Said circuit arrangement comprises a half-bridge circuit acting as a step-down inverter, a lamp inductance (L1) and a resonance capacitor (19), which form a resonant circuit (17), and an ignition transformer (18) the secondary winding (L3) of which is connected on the end to a lamp electrode and on the other end to the junction (22) between the lamp inductance (L1) and the resonance capacitor (19). The primary winding (L2) of the ignition transformer is connected on the one end to the junction (22) between the lamp inductance (L1) and the resonance capacitor (19) and on the other end to the junction (20) of two series-connected diodes (D1, D2), said diodes being connected to the power supply (3) and to ground (1).
IPC 8 full level
H05B 41/04 (2006.01); H05B 41/288 (2006.01)
CPC (source: EP US)
H05B 41/042 (2013.01 - EP US); H05B 41/2881 (2013.01 - EP US)
Citation (search report)
See references of WO 2008128577A1
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
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008128577 A1 20081030; CN 101658072 A 20100224; CN 101658072 B 20130612; EP 2138014 A1 20091230; TW 200917901 A 20090416; US 2010060180 A1 20100311
DOCDB simple family (application)
EP 2007053983 W 20070424; CN 200780052714 A 20070424; EP 07728439 A 20070424; TW 97114491 A 20080421; US 53215907 A 20070424