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:
Nov. 19, 2013
Filed:
Dec. 03, 2010
Sung Kyu Kim, Gyeonggi-do, KR;
Jaewon Lee, Gyeonggi-do, KR;
Tae Hwan Chung, Incheon, KR;
Ki Jong Lee, Gyeonggi-do, KR;
Jong Kyung Lim, Gyeonggi-do, KR;
Sung Kyu Kim, Gyeonggi-do, KR;
Jaewon Lee, Gyeonggi-do, KR;
Tae Hwan Chung, Incheon, KR;
Ki Jong Lee, Gyeonggi-do, KR;
Jong Kyung Lim, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A diagnosis device and method of a voltage transformer can include a current transformer disposed at one side of an output port for generating a current variation according to an on/off operation of a power switch element; a first current detector configured to detect a forward direction current from the current transformer; a second current detector configured to detect a reverse direction current from the current transformer; a first voltage transformer configured to transform the forward direction current detected from the first current detector to a forward direction voltage; a second voltage transformer configured to transform the reverse direction current detected from the second current detector to a reverse direction voltage; and a diagnosis portion for comparing the forward direction voltage with the reverse direction voltage to determine whether or not an offset is formed.