The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2004
Filed:
Mar. 12, 2002
Applicant:
Inventor:
Machiel Antonius Martinus Hendrix, Eindhoven, NL;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 ;
U.S. Cl.
CPC ...
G05F 1/10 ;
Abstract
A boost-converter comprising an inductor, a switch operated by a high-frequency control signal with a frequency f and a diode, is equipped with a further switch operated by a high-frequency control signal with a frequency f and a further diode. The further switch and the further diode enable the conductor to carry current in two directions in each period of the control signal. A high power factor and low THD can be obtained while the frequency f can be maintained at a constant value over a wide range of the amplitude of the input voltage. Hard switching is prevented.