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. 28, 2025
Filed:
Sep. 16, 2022
Harman Becker Automotive Systems Gmbh, Karlsbad, DE;
Zhongfeng Pan, Shanghai, CN;
Chong Liu, Jiangsu, CN;
Weijia Lu, Shanghai, CN;
Lei Wang, Jiangsu, CN;
Qingfeng Xia, Jiangsu, CN;
Shangpeng Li, Jiangsu, CN;
Qiang Zhou, Shanghai, CN;
Guangjun Qin, Shanghai, CN;
HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH, Karlsbad-Ittersbach, DE;
Abstract
The present disclosure provides a power filter. The power filter may include an overvoltage protection circuit and an LC filter circuit connected to the overvoltage protection circuit, wherein the overvoltage protection circuit includes a voltage regulator and a peak compensation circuit. The peak compensation circuit is configured to generate a gain peak at a resonance frequency of the LC filter circuit, so as to compensate for a gain dip at the voltage regulator stage occurring at the resonance frequency of the LC filter circuit.