This paper discussed the principle of a great power battery charger using low cost switch power converter, the practical circuits are presented.

讨论了低成本开关电源式大功率蓄电池充电机的工作原理，并给出了实用的电路原理图。

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Ni-Hi environmental-friendly battery, offer great power.

镍氢环保电池，可提供强大动力。

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Cars make for great antennas, and they have all the battery power they need for communication, so it would be easy to integrate them with each other.

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