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:
Feb. 14, 2012
Filed:
Nov. 28, 2008
Andrzej Pietkiewicz, Burgdorf, CH;
Fabian Beck, Rüttenen, CH;
Andrzej Pietkiewicz, Burgdorf, CH;
Fabian Beck, Rüttenen, CH;
Schaffner EMV AG, Luterbach, CH;
Abstract
A Passive harmonic filter (F) has an input node (B) for connection to a power supply (), an output node (C) for connection to a load () and an intermediate node (A). A first branch () located between the input node (B) and the intermediate node (A) has at least one first inductance (). A second branch () located between the intermediate node (A) and the output node (C) has at least one second inductance (). A third branch () is connected to the intermediate node (A) and has at least one capacitor (). The first, second and third branch thus build a low-pass T-filter. A damping branch () is provided having at least one first resistor (), where the damping branch is arranged in parallel to the first branch.