采用开关电源供电
It is powered by a switching power supply
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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。
With chopping principle, switching power supply is chosen as the DC power supply because of its small size, low weight and high efficiency.
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应用推荐
模块上移
模块下移
不移动