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Section 4 |
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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