A battery incorporating with a power electronics converter as a power module can provide the required voltage levels for the different load applications.

电池配合电力电子转换器，可提供负载所需更精致的电源形式和电压电流准位。

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Experimental result shows that the method makes the operating voltage of electric-light source maintained at the range required voltage level of power saving.

实验证明，该方法使电光源的工作电压基本保持在所要求的节电等级的电压范围内。

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All LED magnifiers provide a very even illumination of the field of view. The required voltage of 3.6 volt is provided by two batteries (AA or a) via a step-up converter.

所有的LED带灯放大镜都可以提供视场均匀照明，所要求的3 . 6伏电压由两节电池通过一个升压变换器完成。

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This concentrates the electric field and minimises the required voltage.

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Somehow, this high-voltage and intelligent pianist has found the balance required to stay focused while on the run.

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