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:
Apr. 21, 2015
Filed:
May. 31, 2012
Walter Beyerlein, Bubenreuth, DE;
Andre Gebhardt, Markt Erlbach, DE;
Tobias Graβl, Erlangen, DE;
Thomas Weidinger, Erlangen, DE;
Walter Beyerlein, Bubenreuth, DE;
Andre Gebhardt, Markt Erlbach, DE;
Tobias Graβl, Erlangen, DE;
Thomas Weidinger, Erlangen, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
A device for improving the filter effect of a filter connected up between an electrical energy source and a source of interference is provided. The filter is configured to feed back interference transients from ground to an input of the source of interference generating the interference transients. The device includes a measuring device for determining a leakage current flowing through the filter and a final control element configured to modify a limit frequency of the filter such that the leakage current through the filter is damped to below a predefined level if the measuring device detects the leakage current.