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:
Feb. 01, 2022

Filed:

Sep. 24, 2021
Applicant:

Ecoflow Inc., Shenzhen, CN;

Inventors:

Lei Wang, Shenzhen, CN;

Xi Chen, Shenzhen, CN;

Hongyu Qian, Shenzhen, CN;

Assignee:

ECOFLOW INC., Shenzhen, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/493 (2007.01); H02M 7/5387 (2007.01); H02M 1/00 (2006.01); H02J 3/38 (2006.01);
U.S. Cl.
CPC ...
H02M 7/493 (2013.01); H02J 3/38 (2013.01); H02M 1/007 (2021.05); H02M 7/53871 (2013.01);
Abstract

An inverter system, including a pre-conversion circuit, a post-conversion circuit, and a control circuit; the pre-conversion circuit is configured to convert a voltage of a power supply into a DC voltage and output the DC voltage to the post-conversion circuit; a voltage between the pre-conversion circuit and the post-conversion circuit is a DC bus voltage; the post-conversion circuit is configured to output an alternating current; the control circuit is configured to detect a DC component of an output terminal of the post-conversion circuit, calculate a difference value of a zero value and the DC component to obtain a DC component deviation value, and perform PI adjustment on the DC component deviation value to obtain a voltage compensation value; the voltage compensation value is used to adjust the DC bus voltage.


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