BATTERY CELL VOLTAGE EQUALIZATION APPARATUS

摘要

A battery cell voltage equalization apparatus includes, to equalize respective battery cells of a battery, a switch circuit provided between a charger and the battery and configured to electrically connect or disconnect the charger and the battery; a cell balance circuit configured to equalize the voltage of a plurality of battery cells; and a control unit configured to control the switch circuit using the charging control signal and to control the cell balance circuit using the balance control signal based on a state of the battery. The control unit controls the cell balance circuit to equalize the voltage of the plurality of battery cells while controlling the switch circuit so that the charger and the battery are electrically connected, when the charging state of the battery is lower than a prescribed threshold.