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:
Mar. 06, 2012
Filed:
Jul. 08, 2009
Norbert Benesch, Heroldsberg, DE;
Norbert Benesch, Heroldsberg, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
A method and an apparatus for setting a feedback power of a converter clocked at a fundamental frequency on the power supply side are disclosed. The converter includes a bridge circuit equipped with controllable semiconductor switches, wherein the semiconductor switches are clocked at the fundamental frequency depending on a desired direction of a power flow through the bridge circuit. Drive signals for the semiconductor switches are derived from the clock pulses at the fundamental frequency and a switch-on delay which depends on a DC link voltage of a DC link connected to the converter. The switch-on delay is determined based on a predetermined characteristic curve that depends on the DC link voltage.