16 | SAMLEX AMERICA INC.
Input voltage
Peak Inrush Current
Inrush current
Rated Steady State
Input RMS Current
NOTE: Voltage and
Current scales
are dierent
Fig 1.2 Inrush current in an SMPS
TIME
Peak Current
RMS Current
Non-linear
Input Current
Input Sine
Wave Voltage
CREST FACTOR = PEAK CURRENT = 3
RMS CURRENT
NOTE: Voltage and
Current scales
are dierent
Volatge − Voltage +
Current − Current +
Fig 1.3 High Crest Factor of current drawn by SMPS
1.4 GENERAL INFORMATION - LEAD ACID BATTERIES
Lead-acid batteries can be categorized by the type of application:
1. Automotive service - Starting/Lighting/Ignition (SLI, a.k.a. cranking), and
2. Deep cycle service.
Deep Cycle Lead Acid Batteries of appropriate capacity are recommended for powering of
inverters.
SECTION 1 | Safety Instructions & General Information
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