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:
Nov. 23, 2004
Filed:
Sep. 20, 2002
Peter Dähler, Remigen, CH;
Osvin Gaupp, Baden, CH;
ABB Schweiz AG, Baden, CH;
Abstract
A converter circuit arrangement is disclosed for matching a variable DC voltage to a drive circuit for producing drive signals and having a three-point DC voltage intermediate circuit ( ), which three-point DC voltage intermediate circuit ( ) is formed by a first capacitor ( ) and a second capacitor ( ) connected in series with it, with one connection of the first capacitor ( ) forming an upper connection ( ) of the three-point DC voltage intermediate circuit ( ), and the first capacitor ( ) forming a center point connection ( ) at the junction point with the second capacitor ( ) and one connection of the second capacitor ( ) forming a lower connection ( ) of the three-point DC voltage intermediate circuit ( ). A first partial converter system ( ) and a second partial converter system ( ) are provided, with the input side of the first partial converter system ( ) being connected to a first pole ( ) of a DC voltage source ( ) which produces the DC voltage, and the input side of the second partial converter system ( ) being connected to a second pole ( ) of the DC voltage source ( ), a first output ( ) of the first partial converter system ( ) being connected to the upper connection ( ), and a first output ( ) of the second partial converter system ( ) being connected to the lower connection ( ). Furthermore, a second output ( ) of the first partial converter system ( ) is connected in series with a second output ( ) of the second partial converter system ( ) via the center point connection ( ). A method for matching a variable DC voltage is also specified.