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:
Jun. 16, 2026

Filed:

Mar. 01, 2024
Applicant:

Delta Electronics (Shanghai) Co., Ltd., Shanghai, CN;

Inventors:

Hong Liu, Shanghai, CN;

Wen Zhang, Shanghai, CN;

Baihui Song, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2006.01); H02M 1/38 (2007.01); H02M 3/00 (2006.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33584 (2013.01); H02M 1/0012 (2021.05); H02M 1/0054 (2021.05); H02M 1/385 (2021.05); H02M 3/01 (2021.05); H02M 3/33515 (2013.01); H02M 3/33569 (2013.01); H02M 7/4807 (2013.01); H02M 1/0003 (2021.05);
Abstract

The disclosure discloses a DC bias suppression method and a high-frequency power conversion circuit using the same. The high-frequency power conversion circuit includes a high-frequency AC port, a switching circuit, a DC port and a power source connected sequentially, and the DC bias suppression method includes: acquiring voltage information or current information of the DC port at N times, where N≥2; obtaining a corresponding first voltage difference or a corresponding first current difference according to the voltage information or the current information at the N times; regulating a duty ratio of a driving signal according to the first voltage difference or the first current difference; and regulating duty ratios of switching tubes in the switching circuit according to the driving signal.


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