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:
Nov. 22, 2016

Filed:

Jul. 03, 2014
Applicant:

Lsis Co., Ltd., Anyang-si, Gyeonggi-do, KR;

Inventors:

Jun Bum Kwon, Seoul, KR;

Teag Sun Jung, Seoul, KR;

Seung Taek Baek, Anyang-si, KR;

Wook Hwa Lee, Incheon, KR;

Yong Ho Chung, Ansan-si, KR;

Assignee:

LSIS CO., LTD., Anyang-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2014.01); H02J 3/36 (2006.01);
U.S. Cl.
CPC ...
G01R 31/263 (2013.01); H02J 3/36 (2013.01);
Abstract

Provided is a synthetic test circuit for synthetic-testing a thyristor valve in high voltage direct current (HVDC). A resonant circuit applies forward DC current, a reverse DC voltage, and a forward DC voltage to synthetic-test the thyristor valve. A current generation unit generates DC current that is above a reference current value to supply the generated DC current into the resonant circuit. A voltage generates unit generating a DC voltage that is above a reference voltage value to supply the generated DC voltage into the resonant circuit. The resonant circuit includes a charging auxiliary valve for charging a gate driver of the thyristor valve.


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