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:
Jun. 06, 2006
Filed:
Mar. 05, 2003
Dietmar Czekay, Dresden, DE;
Martin Honsberg-riedl, Teisendorf, DE;
Dietmar Czekay, Dresden, DE;
Martin Honsberg-Riedl, Teisendorf, DE;
Abstract
A circuit () used for power factor correction, corresponds to a known circuit that includes a high-frequency frequency source () for generating a high-frequency voltage (Uf) for a pump capacitor (). The high-frequency voltage source () has two on/off switches () connected in series that generate, at an electric connection point (), a square wave voltage (U) that varies between these two switches with a frequency (f) of at least 1 megahertz. The voltage source further includes a smoothing device () for generating from the square wave voltage a smoothed voltage (Uf) for the pump capacitor, whereby the smoothed voltage varies with a frequency (f) of at least 1 megahertz.