Patent · US Active

Choke and choke core

US10170231B2 · kind B2 · utility

2Cited by

10References

12Claims

0Family size

Assignee

SUMIDA COMPONENTS & MODULES GMBH · DE

Inventors

Johann Winkler · Hutthurm, DE
Ernst Holzinger · Tettenweis, DE
Robert Ludwig · Pöcking, DE
Iyad Kebaisy · Passau, DE
Herbert Jungwirth · Hauzenberg, DE

Key dates

Filing date	Mar 31, 2015
Grant date	Jan 1, 2019
Priority date	—
Expiry date	Dec 7, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01F37/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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 A1 and the middle leg for the common section has a cross section A2<2×A1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.