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.

Date of Patent:
Apr. 23, 2019

Filed:

Feb. 06, 2017
Applicants:

Wenkang Huang, East Greenwich, RI (US);

Bradley M. Lehman, Belmont, RI (US);

Inventors:

Wenkang Huang, East Greenwich, RI (US);

Bradley M. Lehman, Belmont, RI (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); H01F 27/40 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1584 (2013.01); H01F 27/24 (2013.01); H01F 27/28 (2013.01); H01F 27/40 (2013.01);
Abstract

A multiphase switching DC-DC converter generates an output voltage from an input voltage. The converter includes multiphase coupled inductors having lateral magnetic core and non-looping conductors. The currents in conductors of the inductors flow in opposite directions, and therefore, the coupled inductors are inversely coupled and have a relatively low resistance and relatively small core volume. The reduced resistance of the inductor windings combined with smaller volume of magnetic core in the coupled inductors increases energy conversion efficiency and improves transient response of the converter. The coupled inductors can be employed in buck or boost or buck-boost converters, and they can also be used in buck or boost or buck-boost derived converters with isolation transformers.


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