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:
Sep. 08, 2015

Filed:

Feb. 03, 2012
Applicants:

Haibing HU, Orlando, FL (US);

Xiang Fang, Orlando, FL (US);

Issa Batarseh, Orlando, FL (US);

Zheng John Shen, Oviedo, FL (US);

Inventors:

Haibing Hu, Orlando, FL (US);

Xiang Fang, Orlando, FL (US);

Issa Batarseh, Orlando, FL (US);

Zheng John Shen, Oviedo, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 3/28 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/28 (2013.01); H02M 3/335 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1491 (2013.01);
Abstract

A multi-transformer LLC (resonant) power converter having at least two transformers including a first Tand a second transformer Tin series includes a switch network configured for receiving input power including a first and second switched node. Resonant circuitry is coupled between the first and second switched node including a series combination of an inductor, a capacitor, a primary winding of Tand a primary winding of a T. At least one switch is operable for providing a first mode that includes Tin the resonant circuitry and a second mode that excludes Tfrom the resonant circuitry. Secondary windings of Tand Tare connected electrically in parallel for driving an output capacitor (Co) through respective rectifiers which provide conversion from AC to DC.


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