METHODS AND APPARATUS FOR HIGH POWER FACTOR CONTROLLED POWERDELIVERY USING A SINGLE SWITCHING STAGE PER LOAD

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...

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Bibliographische Detailangaben
Hauptverfasser:	LYS, IHOR A, RABINER, MARK DAVID, SHIKH, IGOR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEATING LIGHTING LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE ORSPECIALLY ADAPTED FOR TRANSPORTATION MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	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.