发明名称 |
APPARATUS AND METHOD FOR SENSING BATTERY LEAKAGE CURRENT, AND BATTERY DRIVING APPARATUS AND BATTERY PACK COMPRISING THE APPARATUS |
摘要 |
An apparatus for sensing a leakage current of a battery comprises a floating capacitor charged with a voltage detected from a cathode or anode terminal of a battery; 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 a detection voltage of the cathode or anode terminal, detected through the selected voltage detection path; a polarity reverse switching unit for reversing a polarity of the detection voltage of the anode terminal charged to the floating capacitor; and a leakage current determining unit for sensing the detection voltage of the cathode terminal charged to the floating capacitor and the polarity-reversed detection voltage of the anode terminal charged to the floating capacitor to calculate a leakage resistance, and comparing the calculated leakage resistance with a criterion insulation resistance to determine whether a leakage current occurs. |
申请公布号 |
EP2322945(B1) |
申请公布日期 |
2014.11.26 |
申请号 |
EP20090806821 |
申请日期 |
2009.08.10 |
申请人 |
LG CHEM, LTD. |
发明人 |
KANG, JU-HYUN;LEE, DAL-HOON;KIM, JEE-HO;LEE, SANG-HOON;KWON, DONG-KEUN |
分类号 |
G01R31/02;G01R31/36 |
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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