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:
Jun. 08, 2021

Filed:

Dec. 16, 2019
Applicant:

Delta Electronics, Inc., Taoyuan, TW;

Inventors:

Xingkuan Guo, Taoyuan, TW;

Xinwei Liu, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 3/28 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/335 (2013.01); H02M 3/285 (2013.01); H02M 3/33538 (2013.01); H02M 3/33569 (2013.01); H02M 2001/0058 (2013.01); H02M 2001/0077 (2013.01);
Abstract

Embodiments of the present disclosure provide an LLC resonant converter system. The LLC resonant converter system includes: a first resonant circuit including a first switch circuit, a first LC resonant circuit, a first transformer, and a first rectifier circuit; and a second resonant circuit including a second switch circuit, a second LC resonant circuit, a second transformer, and a second rectifier circuit; where one secondary side winding of the first transformer is connected in series with one secondary side winding of the second transformer to form a first series branch, and the other secondary side winding of the first transformer is connected in series with the other secondary side winding of the second transformer to form a second series branch. The LLC resonant converter system achieves current equilibrium or voltage equilibrium in a two-branch resonant circuit, thereby simplifying a control circuit and improving current equilibrium or voltage equilibrium effects.


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