Processing

Please wait...

Settings

Settings

Goto Application

1. EP1686838 - HIGH VOLTAGE DISCHARGE LAMP LIGHTING APPARATUS

Office
European Patent Office
Application Number 04799451
Application Date 02.11.2004
Publication Number 1686838
Publication Date 02.08.2006
Publication Kind A4
IPC
H05B 41/288
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
H05B 41/24
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
24in which the lamp is fed by high-frequency ac
CPC
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
H05B 41/26
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
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 41/288
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
Applicants SUMIDA CORP
Inventors KANNO TOMOYUKI
Designated States
Priority Data 2003377346 06.11.2003 JP
Title
(DE) HOCHSPANNUNGS-ENTLADUNGSLAMPEN-BELEUCHTUNGSVORRICHTUNG
(EN) HIGH VOLTAGE DISCHARGE LAMP LIGHTING APPARATUS
(FR) DISPOSITIF D'ECLAIRAGE A LAMPE A DECHARGE HAUTE TENSION
Abstract
(EN) A high voltage discharge lamp lighting apparatus, wherein a high voltage required to light a high voltage discharge lamp can be obtained with the size of the whole apparatus reduced. A rectification circuit (6), which is disposed on the secondary side of a transformer having a primary winding (3), a secondary winding (4) and a core (5) to receive a secondary side voltage, has a forward function and a flyback function. A voltage-doubler circuit (7) adds an output voltage generated by the rectification circuit (6) to the secondary side voltage. Inclusion of the rectification circuit (6) and voltage-doubler circuit (7) can efficiently boost the secondary voltage. Additionally, an inverter circuit (8) and a booster circuit (9) are disposed in a stage following the voltage-doubler circuit (7).
(FR) L'invention concerne un dispositif d'éclairage à lampe à décharge haute tension, nécessitant une tension élevée pour le fonctionnement de la lampe à décharge considérée. Aux fins de l'invention, tout le dispositif peut être réalisé avec une taille réduite. Un circuit redresseur (6), placé sur le côté secondaire d'un transformateur ayant un premier enroulement (3) un second enroulement (4) et un noyau (5) pour la réception d'une tension sur le côté secondaire, comporte une fonction de sens direct et une fonction de sens indirect. Un circuit doubleur de tension (7) ajoute une tension de sortie produite par le circuit redresseur (6) à la tension du côté secondaire. L'insertion du circuit redresseur (6) et du circuit doubleur de tension (7) peut apporter une élévation efficace à la tension du côté secondaire. Par ailleurs, un circuit inverseur (8) et un circuit élévateur (9) sont placés au niveau d'un étage qui se trouve après le circuit doubleur de tension (7).
Related patent documents
US2007080649This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.