| 摘要 |
PURPOSE:To provide a downsized abnormality detecting circuit for battery which can detect abnormality even during charging operation without requiring any special discharging circuit. CONSTITUTION:The abnormality detecting circuit for battery comprises a first charging circuit 12 for charging a battery 11, a second charging circuit 13 for feeding the battery with a charging voltage higher than that of the first charging circuit 12, a switching means 14 for selecting the first charging circuit 12 or the second charging circuit 13, and a circuit 17 for detecting current flowing through the battery 11. |
