EP 1261240 B1 20040616 - Apparatus for discharge lamps with safe ignition
Title (en)
Apparatus for discharge lamps with safe ignition
Title (de)
Betriebsgerät für Entladungslampen mit sicherer Zündung
Title (fr)
Appareil pour des lampes à décharge avec un allumage sûr
Publication
Application
Priority
DE 10124636 A 20010518
Abstract (en)
[origin: CA2383331A1] Appliance for discharge lamps, which has a load circuit with a resonance point at a resonant frequency fres. In order to start the discharge lamps, the load circuit is fed with a square-wave source voltage Uq, whose period duration Tper multiplied by the resonant frequency fres of the load circuit produces approximately a natural number n which is greater than 1. The pulse duration Tpulse at the source voltage Uq is in a range which is described by the following condition: (see formula I)
IPC 1-7
IPC 8 full level
H05B 41/288 (2006.01)
CPC (source: EP US)
H05B 41/2883 (2013.01 - EP US); Y10S 315/07 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1261240 A1 20021127; EP 1261240 B1 20040616; CA 2383331 A1 20021118; DE 10124636 A1 20021121; DE 50200521 D1 20040722; US 2002180376 A1 20021205; US 6611112 B2 20030826
DOCDB simple family (application)
EP 02005923 A 20020314; CA 2383331 A 20020425; DE 10124636 A 20010518; DE 50200521 T 20020314; US 11984702 A 20020411