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. 21, 2026

Filed:

Dec. 01, 2022
Applicant:

Hoymiles Power Electronics Inc., Hangzhou, CN;

Inventors:

Bingwen Weng, Hangzhou, CN;

Yi Zhao, Hangzhou, CN;

Junxiong Wu, Hangzhou, CN;

Yafeng Liao, Hangzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/08 (2006.01); H02M 1/088 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33573 (2021.05); H02M 1/083 (2013.01); H02M 1/088 (2013.01);
Abstract

A control method for a resonant dual active bridge conversion circuit, including the following steps: sampling a voltage on a direct current side of a primary circuit, a voltage on a direct current side of a secondary circuit, and a secondary current; calculating a voltage gain based on an input voltage and an output voltage; calculating, based on the voltage gain, an intra-bridge phase shift angle Φand a phase angle difference Φ, the intra-bridge phase shift angle Φand the phase angle difference Φbeing values at a resonant frequency; calculating a switching frequency of the resonant dual active bridge conversion circuit based on the secondary current; and generating control signals based on the switching frequency, the intra-bridge phase shift angle Φand the phase angle difference Φat the resonant frequency, to control the switches in the primary circuit and the secondary circuit.


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