EP 0641510 A1 19950308 - ELECTRODELESS DISCHARGE LAMP INCLUDING IMPEDANCE MATCHING AND FILTER NETWORK.
Title (en)
ELECTRODELESS DISCHARGE LAMP INCLUDING IMPEDANCE MATCHING AND FILTER NETWORK.
Title (de)
ELEKTRODENLOSE ENTLADUNGSLAMPE MIT FILTER UND IMPEDANZANPASSUNGSSCHALTUNG.
Title (fr)
LAMPE A DECHARGE SANS ELECTRODES COMPORTANT UN RESEAU D'ADAPTATION D'IMPEDANCE ET DE FILTRAGE.
Publication
Application
Priority
- US 9304607 W 19930520
- US 88716692 A 19920520
- US 6477993 A 19930519
Abstract (en)
[origin: WO9323975A1] An impedance matching and filter network (13) is disclosed. The network (13) performs two preselected impedance transformations and provides a filtering function to attenuate harmonics of an electrical signal delivered at an input of the network. The network (13) may advantageously be structured in the form of balanced dual filters which are referenced to a virtual ground between them, the virtual ground being connected to a shield which surrounds the electric components. The network (13) is particularly suitable for use with electrodeless discharge lamps (15) to provide an impedance matching function for the induction coil (14) and to limit RFI.
IPC 1-7
IPC 8 full level
H05B 41/24 (2006.01)
CPC (source: EP)
H05B 41/24 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9323975 A1 19931125; AU 4249893 A 19931213; CA 2136086 A1 19931125; DE 69323742 D1 19990408; DE 69323742 T2 19990701; EP 0641510 A1 19950308; EP 0641510 A4 19950517; EP 0641510 B1 19990303; MX 9302912 A 19940228; PH 29972 A 19961003
DOCDB simple family (application)
US 9304607 W 19930520; AU 4249893 A 19930520; CA 2136086 A 19930520; DE 69323742 T 19930520; EP 93911322 A 19930520; MX 9302912 A 19930519; PH 46201 A 19930518