Capacity leveling circuit for a battery group

摘要

Voltage dividing circuits P1 to P3 are connected between the GND line connected to a battery B and the positive terminals of cells C1 to C3, respectively. Correcting discharging circuits D1 to D3 are connected between an output line on the side of the positive terminal of the battery B and the positive terminals of the cells C1 to C3, respectively. The amounts of discharges of the cells due to the correcting discharging circuits D1 to D3 are set to be equal to those of the cells due to the voltage dividing circuits P1 to P3, respectively, thereby leveling the capacities of the cells.