关于Inrush电流计算:The inrush current is the waveform of the input current I i,measured immediately after the input voltage is connected.CharacteristicsThe inrush current depends on the external input voltageUi, the source and supply line impedance Rs ext and Ls ext,the internal input inductance Li, the internal input resistanceRi as well as capacitance and ESR of the internal input capacitorCi of the power supply. The peak value I inr p of theinrush current can be estimated as follows: