With chopping principle, switching power supply is chosen as the DC power supply because of its small size, low weight and high efficiency.

论文采用直流斩波原理，利用体积小、重量轻、效率高、可靠性好的开关电源作为直流供电电源。

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Novel circuit structure and topologies of single-stage DC switching power supplies with uninterruptible power supply and high power factor, based on flyback converter, are proposed.

该文提出了一类基于反激变换器的单级不间断高功率因数直流开关电源电路结构与拓扑族。

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According to the design demand of DC power supply panel in engineering, this paper introduces the selection of rectification DC rectification power system with high-frequency switch.

针对工程中对直流电源屏的设计需要，简要介绍了高频开关整流电源直流系统的选择。

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