| 摘要 |
<p>A charging controller connected to at least one of secondary cells (11) and detachably connected to a charger (2) or a cell driver, the charging controller including: a charging amount control circuit (14) detecting a cell voltage of each secondary cell and outputting a charging control signal for instructing the charger to reduce a charging current when the detected cell voltage exceeds the target voltage; and a protection circuit (15) detecting a cell voltage of each secondary cell and cutting off a current path from the charger to the secondary cell when the detected cell voltage exceeds the upper limit voltage, the protection circuit operating by using the secondary cell as a power source while at least the charger is not connected. In the charging controller, while neither the charger nor the cell driver are connected, the charging amount control circuit does not operate.</p> |
