| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery system capable of detecting abnormal voltage fall of each battery by solving a problem of common-mode voltage. <P>SOLUTION: Each of detection circuits 401 to 40n-1 is connected to either end of adjacent two fuel battery cells among those 321 to 32n connected in series and is driven by a voltage at either end of the two fuel battery cells. The detection circuits 401 to 40n-1 receive voltages V321 to V32n-1 from the fuel battery cells 321 to 32n-1, and detect abnormal voltage fall of the fuel battery cells 321 to 32n-1, if the voltages received V321 to V32n-1 are below a reference voltage Vstd1. Further, the detection circuit 40n-1 receives the voltage V32n from the fuel battery cell 32n, and detects abnormal voltage fall of the fuel battery cell 32n when the voltage 32n received is below a reference voltage Vstd2. <P>COPYRIGHT: (C)2011,JPO&INPIT |
