EP 0808085 B1 20011121 - High frequency operating circuit with improved electromagnetic compatibility for low pressure discharge lamps
Title (en)
High frequency operating circuit with improved electromagnetic compatibility for low pressure discharge lamps
Title (de)
Hochfrequenzbetriebsschaltung für eine Niederdruckentladungslampe mit verbesserter elektromagnetischer Verträglichkeit
Title (fr)
Alimentation à haute fréquence pour une lampe à décharge basse pression avec une compatibilité électromagnétique accrue
Publication
Application
Priority
DE 19619581 A 19960515
Abstract (en)
[origin: EP0808085A2] The operating circuit has a DC source coupled to a push-pull generator with a centre tap connected to one lamp electrode and 2 outer terminals, one of which is connected to the other lamp electrode. A smoothing filter (C4) is connected between the outer terminals, with an active wave filter having at least one capacitive pumping path with a pumping capacitor (C1,C2) for energy feedback to the smoothing capacitor. A trapeze capacitor (CT1,CT2) is connected between the pumping path and on of the outer terminals of the push-pull generator.
IPC 1-7
IPC 8 full level
H02M 1/12 (2006.01); H05B 41/28 (2006.01); H05B 41/295 (2006.01)
CPC (source: EP US)
H05B 41/28 (2013.01 - EP US); H05B 41/295 (2013.01 - EP US); H05B 45/355 (2020.01 - EP)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0808085 A2 19971119; EP 0808085 A3 19981118; EP 0808085 B1 20011121; CA 2205344 A1 19971115; CA 2205344 C 20040928; DE 19619581 A1 19971120; DE 59705440 D1 20020103; US 5880564 A 19990309
DOCDB simple family (application)
EP 97107207 A 19970430; CA 2205344 A 19970514; DE 19619581 A 19960515; DE 59705440 T 19970430; US 85399797 A 19970509