| 摘要 |
A control system for a battery includes a battery backup unit (BBU), a switch circuit coupled between the BBU and the adapter, and a complex programmable logic device (CPLD) coupled to the BBU and the switch circuit. The CPLD controls the switch circuit to turn on when an actual rate between a rest voltage and a rated voltage of the battery is less than a predetermined rate, to charge the battery through the switch circuit. If the actual rate is greater than or equal to the predetermined rate, the CPLD maintains the adapter to charge or discharge the battery according to state of the battery. |
