降压转换器充电器还提供系统电源

标签：电源技术资料下载,
Many systems require long time operation during periods of power loss. Often a Lead
Acid battery (gel or wet-cell) is found to be the best solution because of the high capacity
and relative low cost. The battery is charged during normal operation, and used to power
the system during power loss. These systems require a circuit to charge the battery as
well as regulate voltage for the system Vcc. In these systems one must provide a current
limited voltage to the battery for charging, while developing system Vcc in both the
charge or discharge condition.， 大小：5.40 MB