Industry Patents

Patent: 7511437

Methods and Apparatus for High Power Factor Controlled Power Delivery Using a SIngle Switching Stage per Load

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Patent Number: 7511437 
Title: Methods and Apparatus for High Power Factor Controlled Power Delivery Using a SIngle Switching Stage per Load 
Abstract: 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.  
Country of Issue: US 
First Named Inventor: Lys, Shikh, Rabiner 
Assignee: Philips SSL 
Continuation or Divisional of:  
International Classification: H05B 37/02 
US Classification: 315/307 
Issue Date: 03-31-2009 
Filing Date: 05-08-2006 
Application : 11/429715 
Notes:  
Link to Patent at freepatentsonline.com: 7511437 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 7511437 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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