| 摘要 |
A power supply charger for charging battery cells divided into at least two battery cell groups, each battery cell group having an associated protector circuit module. The power supply charger comprises, for each battery cell group, a power converter, a constant-current and constant-voltage device connected to the power converter for selectively applying a voltage from the power converter across the battery cell group and a current sensing circuit. The power supply charger further comprises, for each battery cell of a battery cell group, a voltage sensing circuit and a balancer circuit. Finally, the power supply charger comprises a micro-controller operatively connected to the various components and is so configured as to, for each battery cell group, selectively apply a voltage across the battery cell group or decrease the voltage of individual battery cells in the battery cell group in response to sensed battery cell voltage and battery cell group current. |
