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:
May. 09, 2006
Filed:
Dec. 24, 2001
Gil Dong Kim, Gunpo, KR;
Young Jae Han, Seoul, KR;
Hyun Jun Park, Seoul, KR;
Sung Kyou Choi, Seoul, KR;
Jung Min Cho, Cheongju, KR;
Gil Dong Kim, Gunpo, KR;
Young Jae Han, Seoul, KR;
Hyun Jun Park, Seoul, KR;
Sung Kyou Choi, Seoul, KR;
Jung Min Cho, Cheongju, KR;
Korea Railroad Research Institute, Ulwang-Si, KR;
Abstract
The present invention provides a gate drive for protecting a switching element (IGBT) used for an electrical inertial load controller. A high-voltage IGBT is used as the switching element and an hcp1316j is used as the gate drive of the IGBT, to restrict overvoltage and overcurrent generated in the event of inverter switching, preventing destruction of the IGBT in advance. Furthermore, an RC filter is formed in close proximity to the IGBT to minimize an erroneous switching operation due to harmonics generated caused by noise in case of inverter switching to improve the system reliability and block an increase in abnormal voltage applied across the switching element.