It can be used to charge one 12v battery from another or step up the voltage just enough to provide necessary overhead for a 12v linear regulator.
它可以用来从另一个收费一个12v的电池，或加强电压刚够一个12 V线性稳压器提供必要的开销。
2
The A8698 is a constant off-time current mode step-down regulator with a wide input voltage range.
A 8698是带宽输入电压范围的恒定停机时间电流模式降压稳压器。
3
It consists of three-phase or single-phase AC voltage by the step-down and full-wave rectifier (or rectifier bridge) has been, no regulator and ping-wave large enough to require power.