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. 22, 2018

Filed:

Jan. 27, 2017
Applicant:

Dell Products L.p., Round Rock, TX (US);

Inventors:

Merle Wood, Round Rock, TX (US);

Wei-Cheng Yu, New Taipei, TW;

Tun-Chieh Liang, Taipei, TW;

Tsung-Cheng Liao, Taoyuan, TW;

Wen-Yung Chang, Jhong Li, TW;

Assignee:

Dell Products L.P., Round Rock, TX (US);

Attorney:
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 7/68 (2006.01); H02M 3/24 (2006.01); H02M 7/44 (2006.01); H02M 1/44 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 1/44 (2013.01);
Abstract

Systems and methods for enhancing peak power capability and hold-up time in a resonant converter having a LLC topology may include a couple choke transformer circuit that may control an inductance of the couple choke transformer circuit and improve power efficiency of the resonant converter. The resonant converter may also include a resonant tank circuit that may provide improved peak power delivery of the resonant converter. The resonant converter may further include a resonant tank control circuit to control the resonant tank circuit and may increase the peak gain of the resonant converter, increase a voltage range of the input voltage, and extend a hold-up time of the input voltage when an AC power failure occurs.


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