EP 0847681 B1 20011205 - STRIKING CIRCUIT FOR A HIGH-PRESSURE GAS DISCHARGE LAMP
Title (en)
STRIKING CIRCUIT FOR A HIGH-PRESSURE GAS DISCHARGE LAMP
Title (de)
ZÜNDSCHALTUNG FÜR EINE HOCHDRUCK-GASENTLADUNGSLAMPE
Title (fr)
CIRCUIT D'AMORCAGE POUR LAMPE A DECHARGE EN ATMOSPHERE GAZEUSE HAUTE PRESSION
Publication
Application
Priority
- DE 19531622 A 19950828
- EP 9603397 W 19960801
Abstract (en)
[origin: WO9708921A1] A striking circuit for a high-pressure discharge lamp (4) connected via a choke (3) to an a.c. voltage source and with a pulse transformer (5), the secondary winding (6) of which is fitted between the choke (3) and the lamp (4) and the primary winding (8) of which, with a switching component (9), forms a series circuit which in turn is connected in parallel to a pulse capacitor, in which a controllable switch (10) is connected in series with the parallel circuit of the pulse capacitor (7) on the one hand and the primary winding (8) and the switching component (9) on the other, said switch (10) being actuated on the occurrence of a striking pulse for the high-pressure gas discharge lamp (4) in such a way that the settlement of the oscillating circuit consisting of the pulse capacitor (7), the primary winding (8) and the switching component (9) or the rapid recovery of the switching component (9) is ensured. It is thus possible to obtain a short striking pulse sequence with a large number of striking pulses, thus ensuring that the lamp is reliably struck.
IPC 1-7
IPC 8 full level
H05B 41/04 (2006.01)
CPC (source: EP)
H05B 41/042 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IE IT LI NL SE
DOCDB simple family (publication)
WO 9708921 A1 19970306; AT E210364 T1 20011215; AU 6741196 A 19970319; AU 698825 B2 19981105; DE 19531622 A1 19970306; DE 19531622 B4 20110113; DE 59608386 D1 20020117; EP 0847681 A1 19980617; EP 0847681 B1 20011205; ES 2169252 T3 20020701; NO 323736 B1 20070702; NO 980865 D0 19980227; NO 980865 L 19980227; NZ 315658 A 19990528; TR 199800235 T2 19980821; ZA 966972 B 19970919
DOCDB simple family (application)
EP 9603397 W 19960801; AT 96927655 T 19960801; AU 6741196 A 19960801; DE 19531622 A 19950828; DE 59608386 T 19960801; EP 96927655 A 19960801; ES 96927655 T 19960801; NO 980865 A 19980227; NZ 31565896 A 19960801; TR 9800235 T 19960801; ZA 966972 A 19960816