| 摘要 |
<p>PROBLEM TO BE SOLVED: To reliably detect a break caused in a balance correction circuit in a simple configuration.SOLUTION: A balance correction circuit 1 including a control circuit 10 for on/of controlling switching elements S1, S2 to connect series-connected electrical storage cells B1, B2 to resistive elements R1, R2 of discharge units U1, U2 until voltages of the electrical storage cells B1, B2 become equal, and voltage sensors VM1, VM2 for measuring first and second voltages that are respective interterminal voltages of the electrical storage cells B1, B2 is configured to acquire the first voltage or the second voltage in one or more states to keep the switching elements S1, S2 on or off, and determine whether or not there is a break in first to third lines that are lines connecting the electrical storage cells B1, B2 and the discharge units U1, U2 on the basis of the acquired voltage.</p> |
