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1. WO2009051350 - PLANAR LIGHT-SOURCE PULSE-TYPE DRIVING CIRCUIT USING A CURRENT SOURCE

Publication Number WO/2009/051350
Publication Date 23.04.2009
International Application No. PCT/KR2008/005495
International Filing Date 17.09.2008
IPC
H05B 41/24 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
24in which the lamp is fed by high-frequency ac
CPC
H05B 41/2806
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
2806with semiconductor devices and specially adapted for lamps without electrodes in the vessel, e.g. surface discharge lamps, electrodeless discharge lamps
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
Applicants
  • SAMHWA YANG HENG CO., LTD. [KR]/[KR] (AllExceptUS)
  • PARK, Joung-Hu [KR]/[KR] (UsOnly)
  • BAEK, Jongbok [KR]/[KR] (UsOnly)
  • LEE, In-Kyu [KR]/[KR] (UsOnly)
  • CHO, Bo Hyung [KR]/[KR] (UsOnly)
Inventors
  • PARK, Joung-Hu
  • BAEK, Jongbok
  • LEE, In-Kyu
  • CHO, Bo Hyung
Agents
  • KIM, Sun-young
Priority Data
10-2007-010566919.10.2007KR
Publication Language English (EN)
Filing Language Korean (KO)
Designated States
Title
(EN) PLANAR LIGHT-SOURCE PULSE-TYPE DRIVING CIRCUIT USING A CURRENT SOURCE
(FR) CIRCUIT D'ATTAQUE DE TYPE À IMPULSION DE SOURCE DE LUMIÈRE BIDIMENSIONNELLE UTILISANT UNE SOURCE DE COURANT
Abstract
(EN)
A planar light-source driving circuit may include: a voltage source applying a DC voltage; an inductor supplying current depending on the DC voltage applied by the voltage source; a transformer having a primary side connected to the inductor and a secondary side connected to a planar light source, the transformer applying a pulse voltage to the planar light source using the current supplied from the inductor; and first and second switches respectively connected between both ends of the primary side of the transformer and a ground, the first and second switches controlling the current supplied to the transformer by on/off switching operations.
(FR)
Selon l'invention, un circuit d'attaque de source de lumière bidimensionnelle comprend une source de tension appliquant une tension de courant continu, un inducteur générant un courant en fonction de la tension de courant continu appliquée par la source de tension, un transformateur présentant un premier côté connecté à l'inducteur et un second côté connecté à une source de lumière bidimensionnelle, le transformateur appliquant une tension d'impulsion à la source de lumière bidimensionnelle au moyen du courant acheminé depuis l'inducteur et, enfin, des premier et second commutateurs connectés respectivement entre deux extrémités du premier côté du transformateur et d'une masse. Les premier et second commutateurs commandent le courant acheminé jusqu'au transformateur par des opérations de commutation marche/arrêt.
Also published as
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