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1. WO2011107830 - PARALLEL-CONNECTED BALLAST CIRCUITS

Publication Number WO/2011/107830
Publication Date 09.09.2011
International Application No. PCT/IB2010/050942
International Filing Date 04.03.2010
IPC
H05B 41/288 2006.1
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
H02J 3/38 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
38Arrangements for parallelly feeding a single network by two or more generators, converters, or transformers
CPC
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
  • METROLIGHT LTD. [IL]/[IL] (AllExceptUS)
  • HOLLANDER, Jonathan [IL]/[IL]
Inventors
  • HOLLANDER, Jonathan
Agents
  • FARBER, Allan
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PARALLEL-CONNECTED BALLAST CIRCUITS
(FR) CIRCUITS DE BALLAST MONTÉS EN PARALLÈLE
Abstract
(EN) A ballast circuit adapted for converting an input alternating current (AC) mains power received at input terminals to an output alternating current (AC) to supply a load, e.g. a gas discharge lamp. The output terminals of the ballast connect to the load in parallel with another ballast circuit. The ballast circuit is configured to supply the output AC current to the load in parallel with an AC current output of the other ballast circuit. A synchronization module attached at the output is adapted for synchronizing the output alternating current (AC) of the ballast circuit with the AC current output of the other ballast circuit. The synchronization module is configured to synchronize phase of the output alternating current with phase of the AC current output of the other ballast circuit.
(FR) L'invention concerne un circuit de ballast conçu pour convertir une alimentation de secteur en courant alternatif d'entrée (CA) reçue sur des bornes d'entrée en un courant alternatif de sortie (CA) pour alimenter une charge, par exemple, une lampe à décharge gazeuse. Les bornes de sortie du ballast montent la charge en parallèle avec un autre circuit de ballast. Le circuit de ballast est configuré pour fournir le courant de sortie CA à la charge montée en parallèle avec une sortie de courant CA de l'autre circuit de ballast. Un module de synchronisation fixé à la sortie est conçu pour synchroniser le courant alternatif de sortie (CA) du circuit de ballast avec la sortie de courant CA de l'autre circuit de ballast. Le module de synchronisation est conçu pour synchroniser une phase du courant alternatif de sortie avec une phase de la sortie de courant CA de l'autre circuit de sortie.
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