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:
Jan. 01, 2019
Filed:
Mar. 31, 2015
Sumida Components & Modules Gmbh, Obernzell, DE;
Johann Winkler, Hutthurm, DE;
Ernst Holzinger, Tettenweis, DE;
Robert Ludwig, Pocking, DE;
Iyad Kebaisy, Passau, DE;
Herbert Jungwirth, Hauzenberg, DE;
Sumida Components & Modules GmbH, Obernzell, DE;
Abstract
The present invention relates to a choke with two coils and a core for interleaved applications in step-up or step-down circuits or power factor compensation circuits. The core comprises several core sections with several lateral legs and a middle leg, whereby the core is designed such, that a coupling factor k of the two coils is smaller than 3%-5%. Furthermore, the core is designed such, that the core section form two loops with the middle leg as a common section, whereby each of the two coils lies on different loops outside of the common section. The lateral legs have a cross section Aand the middle leg for the common section has a cross section A<2×A