| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a secondary cell system capable of measuring the impedance of secondary cells with the increase in circuit scale and cost suppressed. <P>SOLUTION: A battery pack includes a plurality of secondary cells connected in series. For the measurement of impedance of each secondary cell, a secondary cell system includes: a battery monitoring unit which sequentially measures the impedance of each secondary cell included in the battery pack; and an AC signal generating part which generates an AC signal required for the measurement of the impedance and which applies the AC signal to the battery pack. <P>COPYRIGHT: (C)2013,JPO&INPIT |
