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:
Feb. 06, 2018

Filed:

Jul. 23, 2015
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Ramanujam Ramabhadran, Niskayuna, NY (US);

Yehuda Daniel Levy, Lod, IL;

Xu She, Niskayuna, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2006.01); H02M 7/757 (2006.01); H02M 5/42 (2006.01); H02M 7/04 (2006.01); H02M 7/68 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 3/33546 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1475 (2013.01); Y02B 70/1491 (2013.01);
Abstract

A resonant converter includes a primary stage having first and second switches coupled in series, a controller coupled to the first switch and the second switch to control operation thereof, a first transformer comprising a primary coil coupled to a node between the first and second switches, and a resonant inductor coupled to the primary coil of the first transformer. The resonant converter also includes a secondary stage having a second transformer formed of a primary coil coupled to the resonant inductor and a secondary coil comprising first and second coil sections, a third switch coupled to the first coil section of the secondary coil, and a fourth switch coupled to the second coil section of the secondary coil. A switch drive circuit is provided to drive the third and fourth switches for synchronous rectification, with the switch drive circuit comprising a secondary coil of the first transformer.


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