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1. WO1997014274 - CIRCUIT ARRANGEMENT

Publication Number WO/1997/014274
Publication Date 17.04.1997
International Application No. PCT/IB1996/001030
International Filing Date 01.10.1996
IPC
H05B 41/28 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
H05B 41/288 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
288with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
CPC
H05B 41/28
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
H05B 41/2886
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
288with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
2885Static converters especially adapted therefor; Control thereof
2886comprising a controllable preconditioner, e.g. a booster
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 315/07
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
07Starting and control circuits for gas discharge lamp using transistors
Applicants
  • PHILIPS ELECTRONICS N.V. [NL]/[NL]
  • PHILIPS NORDEN AB [SE]/[SE] (SE)
Inventors
  • BLANKERS, Hendrik, J.
Agents
  • DUSSELDORP, Jan, C.
Priority Data
95202699.509.10.1995EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CIRCUIT ARRANGEMENT
(FR) MONTAGE DE CIRCUIT
Abstract
(EN)
The invention relates to a circuit arrangement for operating a high-pressure discharge lamp, provided with switching means, inductive means and rectifying means together forming a Buck converter, connected to input terminals for connection to a supply source and output terminals for connection of the lamp, comprising means for supplying the lamp with a current through periodic switching of the switching means alternately into a conducting and a non-conducting state by means of a switch-on and switch-off signal, respectively, which inductive means comprise a primary and a secondary winding, the secondary winding forming part of an integration network for generating the switch-off signal. The circuit arrangement is in addition provided with detection means for detecting a current which flows through the rectifying means.
(FR)
La présente invention concerne un montage servant au fonctionnement d'une lampe à décharge haute pression, et équipé d'un organe de commutation, d'un élément inductif et d'un redresseur formant ensemble un convertisseur abaisseur de tension relié à des bornes d'entrée pour le branchement à une source d'alimentation et à des bornes de sortie pour le branchement de la lampe et comprenant un dispositif servant à alimenter la lampe en courant pendant toute la commutation périodique de l'organe de commutation, alternativement à l'état conducteur et à l'état non conducteur, au moyen d'un signal de marche et d'un signal d'arrêt. L'élément inductif comprend un enroulement primaire et un enroulement secondaire, ce dernier faisant partie d'un réseau d'intégration pour produire le signal de coupure. Le montage selon l'invention possède en outre un organe de détection d'un courant passant dans le redresseur.
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