EP 1477046 B1 20100414 - LAMP SENSOR FOR A CHOKE FOR OPERATING A GAS DISCHARGE LAMP
Title (en)
LAMP SENSOR FOR A CHOKE FOR OPERATING A GAS DISCHARGE LAMP
Title (de)
LAMPENSENSOR FÜR EIN VORSCHALTEGERÄT ZUM BETRIEB EINER GASENTLADUNGSLAMPE
Title (fr)
CAPTEUR DE LAMPE POUR BALLAST CONCU POUR FAIRE FONCTIONNER UNE LAMPE A DECHARGE GAZEUSE
Publication
Application
Priority
- DE 10206731 A 20020218
- EP 0301046 W 20030203
Abstract (en)
[origin: WO03069963A1] The invention relates to a choke for operating a gas discharge lamp (4), which comprises an inverter (1) that has two transistor switches (17 and 18) that are connected in series to a direct voltage source (Ubus) in a push-pull circuit. The inverter (1) is linked with a load circuit (3) via a coupling capacitor (2) to which a high-impedance resistor (12) is connected in parallel, said load circuit comprising the gas discharge lamp (4) and an acceptor circuit (22). A sensor circuit (6) is used to detect both a lamp malfunction and the voltage applied to the lamp (4). The sensor circuit (6) is provided with a voltage divider (7) that is connected in parallel to the lamp filaments (8, 9) and the resonance capacitor (5) on the side facing away from the coupling capacitor (2) of the lamp (4). A sensor signal (10) detects a lamp malfunction or determines the lamp voltage that is tapped in a center (11) of the voltage divider (7).
IPC 8 full level
H05B 41/298 (2006.01); H05B 41/285 (2006.01)
CPC (source: EP)
H05B 41/2855 (2013.01); H05B 41/2985 (2013.01)
Citation (examination)
DE 4120649 A1 19921224 - VOSSLOH SCHWABE GMBH [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03069963 A1 20030821; AT E464774 T1 20100415; AU 2003206824 A1 20030904; CN 1633830 A 20050629; CN 1633830 B 20100630; DE 10206731 A1 20030828; DE 10206731 B4 20161222; DE 50312613 D1 20100527; EP 1477046 A1 20041117; EP 1477046 B1 20100414; EP 1945008 A1 20080716; EP 1945008 B1 20130911
DOCDB simple family (application)
EP 0301046 W 20030203; AT 03704522 T 20030203; AU 2003206824 A 20030203; CN 03804114 A 20030203; DE 10206731 A 20020218; DE 50312613 T 20030203; EP 03704522 A 20030203; EP 08155561 A 20030203