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1. WO2006043144 - MAINS CONTROL OF LOAD POWER OUTPUT

Publication Number WO/2006/043144
Publication Date 27.04.2006
International Application No. PCT/IB2005/003081
International Filing Date 17.10.2005
IPC
H05B 41/298 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
295with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
298Arrangements for protecting lamps or circuits against abnormal operating conditions
CPC
H05B 41/392
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
36Controlling
38Controlling the intensity of light
39continuously
392using semiconductor devices, e.g. thyristor
H05B 41/3925
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
36Controlling
38Controlling the intensity of light
39continuously
392using semiconductor devices, e.g. thyristor
3921with possibility of light intensity variations
3925by frequency variation
Applicants
  • CORTE, Daniel, Alfonso [UY]/[ZA]
  • DE WET, Riccardo, Arthur [ZA]/[ZA]
Inventors
  • CORTE, Daniel, Alfonso
  • DE WET, Riccardo, Arthur
Agents
  • BOWMAN, GILFILLAN, INC., (JOHN, &, KERNICK)
Priority Data
2004/725018.10.2004ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MAINS CONTROL OF LOAD POWER OUTPUT
(FR) COMMANDE SECTEUR D'UNE SORTIE DE PUISSANCE DE CHARGE
Abstract
(EN)
An electronic circuit is provided for controlling the power output of a load connected to the circuit by manipulation of the amplitude of the mains voltage. The load may be fluorescent tube. A sensing circuit coupled to the mains voltage detects changes in the mains voltage amplitude and manipulates an oscillator that drives switching means, thereby changing the frequency of the wave passing through the load. The invention also extends to a dimmable fluorescent lamp including the electronic circuit described.
(FR)
L'invention concerne un circuit électronique destiné à commander la sortie de puissance d'une charge connectée au circuit par variation de l'amplitude de la tension de secteur, ladite charge pouvant être un tube fluorescent. Un circuit de détection couplé à la tension de secteur détecte des variations de l'amplitude de la tension de sortie et commande un oscillateur pilotant des éléments de commutation de manière à changer la fréquence des ondes traversant la charge. L'invention concerne également une lampe fluorescente à intensité réglable comportant le circuit électronique selon l'invention.
Also published as
Latest bibliographic data on file with the International Bureau