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:
Oct. 30, 2018

Filed:

Sep. 12, 2016
Applicant:

Futurewei Technologies, Inc., Plano, TX (US);

Inventors:

Daoshen Chen, Allen, TX (US);

Heping Dai, Plano, TX (US);

Xujun Liu, Shenzhen, CN;

Zhihua Liu, Shenzhen, CN;

Liming Ye, Frisco, TX (US);

Dianbo Fu, Frisco, TX (US);

Ce Liu, Shenzhen, CN;

Bing Cai, Richardson, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 3/22 (2006.01); H02M 3/156 (2006.01); H02M 3/325 (2006.01); H02M 3/337 (2006.01); H02M 1/14 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 1/14 (2013.01); H02M 3/156 (2013.01); H02M 3/22 (2013.01); H02M 3/325 (2013.01); H02M 3/337 (2013.01); H02M 3/3376 (2013.01); H02M 3/33523 (2013.01); H02M 3/33569 (2013.01); H02M 3/33576 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1491 (2013.01);
Abstract

A method comprises connecting a first resonant converter and a second resonant converter in parallel, detecting a first signal indicating a first soft switching process of the first resonant converter and a second signal indicating a second soft switching process of the second resonant converter and adjusting a first switching frequency of the first resonant converter by a first control circuit and a second switching frequency of the second resonant converter by a second control circuit until a load current flowing through the first resonant converter is substantially equal to a load current flowing through the second resonant converter.


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