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:
Jul. 10, 2018

Filed:

Oct. 28, 2016
Applicant:

Postech Academy-industry Foundation, Pohang-si, KR;

Inventors:

Bong Koo Kang, Pohang-si, KR;

Sang Won Lee, Daejeon-si, KR;

Kyung Min Lee, Daejeon-si, KR;

Yoon Geol Choi, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/04 (2006.01); H02J 7/16 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0014 (2013.01); H02J 7/0052 (2013.01); H02J 7/0068 (2013.01); H02M 3/33507 (2013.01); H02M 3/33584 (2013.01); H02J 7/0065 (2013.01); H02J 2007/0059 (2013.01); Y02B 40/90 (2013.01);
Abstract

The present invention relates to a technique for implementing a bidirectional DC-DC converter applied to an energy storage system. The bidirectional DC-DC converter includes a magnetically coupled inductor and a charging/discharging voltage storage unit between a DC link power supply and a battery power supply, and implements a high gain through a two-step voltage transformation process when a charging process or discharging process is performed. Thus, the bidirectional DC-DC converter can reduce the construction cost of the battery cell, guarantee a high voltage available range, and reduce the influence of leakage inductance.


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