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.:

US 7199695 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 03, 2007

Filed:

Oct. 25, 2005
Applicants:

Jinghai Zhou, Blacksburg, VA (US);

Fred C. Lee, Blacksburg, VA (US);

Ming Xu, Blacksburg, VA (US);

Yan Dong, Blacksburg, VA (US);

Inventors:

Jinghai Zhou, Blacksburg, VA (US);

Fred C. Lee, Blacksburg, VA (US);

Ming Xu, Blacksburg, VA (US);

Yan Dong, Blacksburg, VA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multiple phase buck converter or boost converter, or buck-boost converter has an inductor in each phase. A magnetic core with a unique woven topology provides inverse coupling between the inductors. The inductors can comprise straight conductors since the magnetic core has the woven topology wrapped around each inductor. The inductors have a reduced electrical resistance since they are straight and do not loop around the magnetic core. The reduced electrical resistance increases energy efficiency and improves transient response of the circuit. The magnetic core can comprise top and bottom portions that are magnetically connected. The inductors can comprise straight circuit board traces and the circuit board can have holes to accommodate the magnetic core.


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Zhou, Jinghai. (2007). Multiphase voltage regulator having coupled inductors with reduced winding resistance (U.S. Patent No. 7199695). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7199695

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