| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a battery pack capacity adjuster that can properly equalize battery cells Ci (i=1 to n) constituting a battery pack 10. <P>SOLUTION: A capacity adjuster for a battery pack 10 comprises a transformer Ti, a primary switch SW1i, a secondary switch SW2i, and so on. More specifically, in each battery cell Ci, a series connection body of a primary coil w1i and the primary switch SW1i is connected in parallel, and a series connection body of a secondary coil w2i and a diode Di is each connected in parallel via the secondary switch SW2i. In such a configuration, a selection is processed to pick a battery cell having a minimum internal resistance and a battery cell having a maximum internal resistance among the battery cells Ci. Then, an equalization processing of operating the primary switch SW1i and the secondary switch SW2i is performed so as to supply electric power from the battery cell having the minimum internal resistance to the battery cell having the maximum internal resistance via the transformer Ti. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
