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.
Patent No.:
Date of Patent:
Jul. 16, 2024
Filed:
Apr. 07, 2020
Applicant:
Ls Electric Co., Ltd., Anyang-si, KR;
Inventors:
Chengde Xu, Anyang-si, KR;
Chun-Suk Yang, Anyang-si, KR;
Assignee:
LS ELECTRIC CO., LTD., Anyang-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/52 (2020.01); G01R 1/20 (2006.01); G01R 31/42 (2006.01); H02H 7/122 (2006.01);
U.S. Cl.
CPC ...
G01R 31/52 (2020.01); G01R 1/203 (2013.01); G01R 31/42 (2013.01); H02H 7/1227 (2013.01);
Abstract
The present disclosure relates to an inverter system capable of detecting an output ground fault and an output ground fault detection method using same and, particularly, to an inverter for detecting an output ground fault by detecting the current of a leg-shunt resistor, and an inverter output ground detection fault method using same. The present disclosure compares absolute peak values of 3-phase current AD raw values detected from a shunt resistor, and thus may reliably detect the output ground fault of an inverter.