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.
Patent No.:
Date of Patent:
Aug. 15, 2017
Filed:
Oct. 09, 2015
Applicant:
Dell Products, L.p., Round Rock, TX (US);
Inventors:
Tsai-Fu Hung, Taipei, TW;
Yu-Hung Lai, Taipei, TW;
Shih-Chieh Wang, Taipei, TW;
Feng-Yu Wu, Taipei, TW;
Assignee:
Dell Products, L.P., Round Rock, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/14 (2006.01); H02M 1/42 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33546 (2013.01); H02M 1/14 (2013.01); H02M 1/42 (2013.01);
Abstract
Systems and methods for reducing the line frequency ripple in a resonant converter are described. In some embodiments, a power supply includes a switching network; an LLC resonant tank coupled to the switching network; a rectifier coupled to the LLC resonant tank; and a control circuit coupled to the switching network and to the rectifier, where the control circuit is configured to modify an operating frequency of the switching network to reduce a line frequency ripple at an output of the rectifier.