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. 19, 2019

Filed:

Jan. 23, 2017
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Mehdi Rexha, Sterling Heights, MI (US);

Jaesam Lee, Ansan-si, KR;

Chieh-Kai Chang, Madison Heights, MI (US);

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01); H02M 3/158 (2006.01); G01R 31/40 (2014.01); G01R 19/165 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/1584 (2013.01); G01R 19/165 (2013.01); G01R 31/40 (2013.01); H02M 1/32 (2013.01); H02M 2003/1586 (2013.01);
Abstract

A power supply system having a detection system for determining an unbalanced current condition and an over-current condition in a DC-DC voltage converter is provided. The detection system has a detection circuit that outputs a first diagnostic voltage indicating an unbalanced current condition between first and second switching banks in the DC-DC voltage converter based on a first voltage and an average voltage, or an over-current condition in the first switching bank based on the first voltage. The detection circuit outputs a second diagnostic voltage indicating the unbalanced current condition between the first and second switching banks in the DC-DC voltage converter based on a second voltage and the average voltage, or an over-current condition in the second switching bank based on the second voltage.


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