EP 1330946 B1 20050316 - CIRCUIT ARRANGEMENT FOR OPERATING SEVERAL GAS DISCHARGE LAMPS
Title (en)
CIRCUIT ARRANGEMENT FOR OPERATING SEVERAL GAS DISCHARGE LAMPS
Title (de)
SCHALTUNGSANORDNUNG ZUM BETREIBEN VON MEHREREN GASENTLADUNGSLAMPEN
Title (fr)
CIRCUIT POUR FAIRE FONCTIONNER PLUSIEURS LAMPES A DECHARGE GAZEUSE
Publication
Application
Priority
- DE 10049842 A 20001009
- EP 0111073 W 20010925
Abstract (en)
[origin: US2003214252A1] A circuitry arrangement for operating n gas discharge lamps, n being a whole number greater than 1, includes a single inverter, fed with d.c. voltage, for generating an a.c. voltage alterable in its frequency, delivered to a load circuit arranged at the inverter's output. The load circuit includes a series resonant circuit of an inductance and capacitance, n gas discharge lamps connected to a common node point between the inductance and capacitance, which lamps are connected in parallel to one another, and (n-1) balancing transformers for balancing currents in two gas discharge lamps. The load circuit further has for each gas discharge lamp at least one d.c. current supply line, connected between an output side terminal of a corresponding balancing transformer winding and gas discharge lamp and via which there is delivered to each gas discharge lamp a d.c. current, so as to avoid an unintended extinguishing of a lamp.
IPC 1-7
IPC 8 full level
H05B 41/392 (2006.01)
CPC (source: EP US)
H05B 41/392 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2003214252 A1 20031120; US 6765354 B2 20040720; AT E291342 T1 20050415; AU 1395902 A 20020422; AU 2002213959 B2 20051222; DE 10049842 A1 20020411; DE 50105646 D1 20050421; EP 1330946 A1 20030730; EP 1330946 B1 20050316; WO 0232196 A1 20020418
DOCDB simple family (application)
US 40824803 A 20030408; AT 01982352 T 20010925; AU 1395902 A 20010925; AU 2002213959 A 20010925; DE 10049842 A 20001009; DE 50105646 T 20010925; EP 0111073 W 20010925; EP 01982352 A 20010925