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. 21, 2022

Filed:

Nov. 08, 2021
Applicant:

Ecoflow Inc., Shenzhen, CN;

Inventors:

Lei Wang, Shenzhen, CN;

Xi Chen, Shenzhen, CN;

Assignee:

ECOFLOW INC., Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02J 7/0068 (2013.01); H02J 2207/20 (2020.01);
Abstract

A bidirectional DC/DC converter and an energy storage system are provided. The bidirectional DC/DC converter includes: a first half-bridge circuit, a second half-bridge circuit, an inductor circuit, an inductor current detection circuit, and a control circuit. The control circuit is configured to: according to an operating mode, determine one of the first and second half-bridge circuits as a target half-bridge circuit; determine a target switch circuit and a freewheeling switch circuit; control the target switch circuit to be turned on and off periodically; control the freewheeling switch circuit to be turned off when the target switch circuit is turned on; control the freewheeling switch circuit to be turned on when the target switch circuit is turned off; and when an amplitude of a current flowing through the inductor circuit is less than or equal to a preset threshold value, control the freewheeling switch circuit to be turned off.


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