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. 16, 2019
Filed:
Nov. 16, 2017
Audi Ag, Ingolstadt, DE;
Maximilian Schiedermeier, Ingolstadt, DE;
Cornelius Rettner, Erlangen, DE;
AUDI AG, Ingolstadt, DE;
Abstract
A rectifier device which is used for a motor vehicle. Such a device includes a switching unit, which is connected to an intermediate circuit and can be operated with a predetermined switching frequency and provided with a plurality of filter elements connected in an intermediate circuit. Each is equipped with an inter intermediate circuit capacitance. A minimum of the magnitude frequency response of a respective filter element is within a different frequency interval, which has a harmonic of the switching frequency as a middle frequency and an interval length corresponding to the switching frequency as a respective minimum of the magnitude frequency response.