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:
May. 06, 2014

Filed:

Dec. 01, 2011
Applicants:

Sang Gab Park, Suwon-si, KR;

Nam Jin Park, Suwon-si, KR;

Han Hee Lee, Suwon-si, KR;

Hyo Joong an, Suwon-si, KR;

Gyu Min Park, Suwon-si, KR;

Heung Gyoon Choi, Suwon-si, KR;

Inventors:

Sang Gab Park, Suwon-si, KR;

Nam Jin Park, Suwon-si, KR;

Han Hee Lee, Suwon-si, KR;

Hyo Joong An, Suwon-si, KR;

Gyu Min Park, Suwon-si, KR;

Heung Gyoon Choi, Suwon-si, KR;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a control circuit of an LLC resonant converter including a minimum switching frequency variable circuit of varying a minimum switching frequency corresponding to an AC input voltage of the LLC resonant converter; and a first pulse signal generating unit and a second pulse signal generating unit to generate a first pulse signal and a second pulse signal based on a switching frequency limited by the minimum switching frequency variable circuit.


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