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1. WO2000025556 - CIRCUIT ARRANGEMENT

Publication Number WO/2000/025556
Publication Date 04.05.2000
International Application No. PCT/EP1999/007462
International Filing Date 28.09.1999
IPC
H05B 41/282 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41Circuit arrangements or apparatus for igniting or operating discharge lamps
14Circuit arrangements
26in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
28using static converters
282with semiconductor devices
CPC
H05B 41/2821
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41Circuit arrangements or apparatus for igniting or operating discharge lamps
14Circuit arrangements
26in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
28using static converters
282with semiconductor devices
2821by means of a single-switch converter or a parallel push-pull converter in the final stage
Y02B 20/00
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
20Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Y10S 315/05
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
315Electric lamp and discharge devices: systems
05Starting and operating circuit for fluorescent lamp
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL]/[NL]
Inventors
  • MARINUS, Antonius, A., M.
  • OOSTVOGELS, Ludovicus, F., J.
  • EBERSON, Etienne, N., K., P., M.
  • VAN DEN BERG, Arjan
Agents
  • BOSMA, Rudolphus, H., A.
Priority Data
98203563.622.10.1998EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CIRCUIT ARRANGEMENT
(FR) AGENCEMENT DE CIRCUIT
Abstract
(EN)
A ballast circuit for a compact fluorescent lamp includes a down-converter for operating the lamp with a DC current during stationary operation. The ballast circuit is equipped with an additional inductor. The choke of the down-converter and the additional inductor jointly ignite the lamp. During stationary operation, the additional inductor conveys no current.
(FR)
L'invention porte sur un circuit de ballast d'une lampe compacte à fluorescence, ce circuit comprenant un convertisseur abaisseur permettant de faire fonctionner la lampe avec un courant continu au cours d'une opération fixe. Le circuit de ballast est doté d'une bobine d'induction supplémentaire. La bobine d'arrêt du convertisseur abaisseur et la bobine d'induction supplémentaire allument conjointement la lampe. Au cours d'une opération fixe, la bobine d'induction supplémentaire n'achemine pas de courant.
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