发明名称 |
APPARATUS AND METHOD FOR SENSING A CURRENT LEAKAGE OF A BATTERY, AND BATTERY DRIVING APPARATUS AND BATTERY PACK INCLUDING THE APPARATUS |
摘要 |
An apparatus for sensing a leakage current of a battery includes a floating capacitor charged with a voltage detected from a cathode or anode terminal of a battery; a DC voltage applying unit for applying a DC voltage to the anode terminal when measuring a detection voltage of the anode terminal; a terminal selection switching unit for selecting a voltage detection path for the cathode or anode terminal; a charge switching unit for charging the floating capacitor with the detection voltage detected from the selected voltage detection path, and separating the floating capacitor from the voltage detection path; a voltage sensing unit for sensing the detection voltage charged to the floating capacitor; and a leakage current determining unit for calculating a leakage resistance based on the detection voltages, and comparing the leakage resistance with a criterion insulation resistance to determine whether a leakage current occurs. |
申请公布号 |
EP2336794(A2) |
申请公布日期 |
2011.06.22 |
申请号 |
EP20090810259 |
申请日期 |
2009.09.01 |
申请人 |
LG CHEM, LTD. |
发明人 |
KANG, JU-HYUN;KIM, JEE-HO;LEE, SANG-HOON;KWON, DONG-KEUN |
分类号 |
G01R31/02;B60L3/00;G01R19/00;G01R27/18;G01R31/36;H01M10/052;H01M10/42;H01M10/48 |
主分类号 |
G01R31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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