Patent Number: 6,310,790

Title: High frequency DC-DC down converter with power feedback for improved power factor

Abstract: In a downconverter for supplying a DC current to a lamp, power feedback is achieved by adding a high frequency-operated switch and a capacitor to the topology. The power factor is improved thereby.

Inventors: Hendrix; Machiel A. M. (Eindhoven, NL), Antic; Darko (Eindhoven, NL)

Assignee: U.S. Philips Corporation

International Classification: H05B 41/28 (20060101); H05B 41/288 (20060101); H02M 007/217 ()

Expiration Date: 10/30/2018