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:
Jan. 09, 2001
Filed:
Sep. 02, 1999
Applicant:
Inventors:
Stefan Nowak, Braeuningshof, DE;
Robert Bleisteiner, Dormitz, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/38 ;
U.S. Cl.
CPC ...
H03F 3/38 ;
Abstract
A switching amplifier operable in a switched mode has a common-mode charging current which arises due to charge reversals in the conductor to ground and coupling capacitances. In order to make this charging current easily filterable, in a switching amplifier and a method for operating a switching amplifier, n successively connected cascade elements are provided n being odd and greater than equal to three, and a control unit drives comparable switch elements in the individual cascade elements so that these comparable switch elements are driven offset from cascade element-to-cascade element by 1/n times the switching period.