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:
Oct. 16, 2012
Filed:
Aug. 27, 2008
Applicants:
Oliver Brueckl, Waldmuenchen, DE;
Dieter Dohnal, Lappersdorf, DE;
Hans-henning Lessmann-mieske, Neutraubling, DE;
Inventors:
Oliver Brueckl, Waldmuenchen, DE;
Dieter Dohnal, Lappersdorf, DE;
Hans-Henning Lessmann-Mieske, Neutraubling, DE;
Assignee:
Maschinenfabrik Reinhausen GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for switching without any interruption between two winding taps (tap n, tap n+1) of a tap-changing transformer, wherein each of the two winding taps is connected to the common load output line via in each case one mechanical switch (Ds) and a series circuit, arranged in series thereto, comprising two IGBTs (Ip, In) which are switched in opposite directions.