| 摘要 |
PURPOSE: A method and system for balancing a battery pack are provided to secure sufficient balancing time by maintaining a balancing operation determined in a non-planarization section in a planarization section. CONSTITUTION: A battery(610) comprises a plurality of cells(CELL1 to CELL3). A cell balancing unit(621) includes a discharge resistor(DR1-DR3) and a cell balancing switch(DSW1-DSW3). A cell selecting unit(622) includes a plurality of cell selecting switches(SH1-SH4,SL1-SL4). A first relay unit(623) transmits a voltage which is stored in a cell according to a control signal outputted from a control unit(630) to a capacitor(C1). A second relay unit(624) transmits a voltage which is stored in a capacitor according to a connection control signal outputted from the control unit to a differential amplifier(625).
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