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:
Apr. 08, 2014
Filed:
Dec. 18, 2009
Jun-young Park, Suwon-si, KR;
Jun-won Suh, Suwon-si, KR;
Chi-seung Lee, Suwon-si, KR;
Seong-jin an, Suwon-si, KR;
Jin-hwa Lee, Suwon-si, KR;
Hyun Kim, Suwon-si, KR;
Jun-Young Park, Suwon-si, KR;
Jun-Won Suh, Suwon-si, KR;
Chi-Seung Lee, Suwon-si, KR;
Seong-Jin An, Suwon-si, KR;
Jin-Hwa Lee, Suwon-si, KR;
Hyun Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., Giheung-gu, Yongin-si, Gyeonggi-do, KR;
Abstract
Disclosed are a fuel cell system, and a method of driving the system. The fuel cell system includes a fuel cell stack having a plurality of unit cells producing electricity, a switching unit connecting the plurality of unit cells to a discharge resistor, a switching controller synchronously operated when the voltage of the fuel cell stack reaches an open circuit voltage after power generation of the fuel cell stack is stopped. The switching controller generates select control signals to control the switching unit. The fuel cell system further includes a sensing unit measuring respective cell voltages of the plurality of unit cells and generating cell voltage sensing signals to control activation periods of the select control signals.