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1. US20070188114 - Methods and apparatus for high power factor controlled power delivery using a single switching stage per load

Office États-Unis d'Amérique
Numéro de la demande 11429715
Date de la demande 08.05.2006
Numéro de publication 20070188114
Date de publication 16.08.2007
Numéro de délivrance 7511437
Date de délivrance 31.03.2009
Type de publication B2
CIB
H05B 37/02
HÉLECTRICITÉ
05TECHNIQUES ÉLECTRIQUES NON PRÉVUES AILLEURS
BCHAUFFAGE ÉLECTRIQUE; ÉCLAIRAGE ÉLECTRIQUE NON PRÉVU AILLEURS
37Circuits pour sources lumineuses électriques en général
02Commande
CPC
H05B 33/0887
H02M 1/4225
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
4208Arrangements for improving power factor of AC input
4225using a non-isolated boost converter
H05B 33/0815
H05B 33/0818
H05B 33/0842
H05B 33/0848
Déposants Philips Solid-State Lighting Solutions, Inc.
Inventeurs Lys Ihor A.
Shikh Igor
Rabiner Mark David
Titre
(EN) Methods and apparatus for high power factor controlled power delivery using a single switching stage per load
Abrégé
(EN)

Methods and apparatus for high power factor power transfer to a load using a single switching stage. In exemplary implementations, a controllable variable power may be delivered to a load using a single switching stage while maintaining high power factor, in some cases without requiring any feedback information relating to the load conditions (i.e., without monitoring load voltage and/or current) to control normal switching operations in the single switching stage, and without requiring regulation of load voltage and/or load current. In one example, a single stage high power factor driver is used to control power delivery to an LED-based light source.