The paper gives two kinds of approaches to measure the ripple current in input current of DC-DC converter or DC-AC inverter.

文中叙述了直流—直流变换器或直流—交流逆变器输入电流中纹波电流的二种测量方法。

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Due to considering the interaction of harmonics at ac and DC sides of converter station, the calculation result is more close to actual situation.

由于考虑了换流站交直流侧谐波的相互作用，该计算结果与实际情况更为接近。

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During the so-called braking of the motor, the power flows from the ac side to the dc side of the switch-mode converter and it operates in a rectifier mode.

在所谓制动阶段，功率从开关型变流器的交流侧流向直流侧；此时变流器相当于一个整流器。

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The life cycle of the LED has also increased significantly, going beyond the life cycle of the (AC to DC) converter.

WSJ: Seoul Semiconductor's LED-Lighted Path

About 30% of cost is the converter from AC to DC.

WSJ: Seoul Semiconductor's LED-Lighted Path