Compared with linear power supply, it provides smaller size and higher efficiency.
与线性稳压电源相比，体积小、效率高。
The noise in the switching power supply is much larger than the noise in the conventional linear power supply.
开关电源产生的噪声比常规线性电源产生的噪声大得多。
In order to be smaller, it is necessary to replace the linear power supply with switching power supply in the digital meter.
为了进一步缩小体积，需要用开关电源取代线性电源对数字仪表供电。
At low output voltage, the majority of the rated power of traditional adjustable linear power supply is wasted in the internal power supply and the conversion efficiency is low with huge volume.
传统的可调整线性电源在输出电压低时，电源的大部分额定功率耗费在电源内部，变换效率很低，而且体积庞大笨重。
At low output voltage, the majority of the rated power of traditional adjustable linear power supply is wasted in the internal power supply and the conversion efficiency is low with huge volume.
传统的可调整线性电源在输出电压低时，电源的大部分额定功率耗费在电源内部，变换效率很低，而且体积庞大笨重。
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