With the principle of work and power, as well as Poynting vector, the reasons for the energy variation in the process of connecting capacitances in parallel are analyzed and discussed.

本文用功能关系和坡印亭矢量分析和讨论了电容器并联过程中能量的变化原因。

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The paper introduced the work principle, hardware circuit design and software design of a power factor automated compensator composed mainly of 8031 single chip computer.

介绍一种以8031单片机为核心而构成的功率因数自动补偿控制器的工作原理及硬件电路设计、软件设计。

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This paper introduces the characteristic of analogue switch MAX4624. gives the designing circuit of cutting down relay's power loss, it 's work principle and the methods of selecting components.

本文介绍了MAX4624模拟开关的基本特性，给出了利用模拟开关降低继电器功耗的设计电路，并说明了其工作原理及元器件的选择方法。

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