Powering Direct / Embedded Switch Mode Power Supplies (Smps); Input Voltage - Samlex Europe PST-300S-12E Manual Del Propietário

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Input voltage

Peak inrush
current
Inrush current
Fig 4.1: Inrush current in an SMPS
Input Sine
Wave Voltage
TIME
Fig. 4.2: High Crest Factor of current drawn by SMPS
Powering Direct / embedded switch
Mode Power supplies (sMPs)
Non-linear
Input Current
Pulse
NOTE: Voltage
and current scales
are di erent
Rated steady state
input RMS current
Peak Current
RMS Current
Crest Factor = Peak Current = 3
RMS Current
SAMLEX AMERICA INC. | 15
NOTE: Voltage
and current scales
are di erent
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