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:
Apr. 13, 2021

Filed:

Jun. 18, 2020
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Yanzhong Zhang, Shanghai, CN;

Zheng Ma, Xi'an, CN;

Boning Huang, Dongguan, CN;

Grover Victor Torrico-Bascopé, Kista, SE;

Dianbo Fu, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 3/337 (2006.01); H02M 1/08 (2006.01); H02M 7/483 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33569 (2013.01); H02M 1/08 (2013.01); H02M 7/483 (2013.01); H02M 3/337 (2013.01); H02M 3/3376 (2013.01); H02M 3/33507 (2013.01); H02M 2001/0054 (2013.01);
Abstract

A resonant converter circuit comprises a multi-level inverter circuit placed before a resonant unit, and the multi-level inverter circuit can reduce a voltage to be input to the resonant unit. The reduced input voltage of the resonant unit results in a drop in an output voltage of the entire resonant converter circuit. In this process, the final output voltage is adjusted by adjusting the input voltage of the resonant unit, with no need to substantially adjust a switching frequency of the resonant converter circuit.


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