AC/DC switching converters are highly nonlinear. Therefore they draw a non-sinusoidal current with a very low power factor.
DC开关变换器非线性程度很高，输入电流为非正弦形式，功率因数极低。
AC/DC switching converters are highly nonlinear. Therefore they draw a non-sinusoidal current with a very low power factor.
DC开关变换器非线性程度很高，输入电流为非正弦形式，功率因数极低。
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