Samlex America SSW-2000-12A - Manuel (Page 5)

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Section 2 | HoW YoUR inVeRteR WoRKS
The inverter converts low voltage DC (Direct Current) from a battery or other DC power source to the
standard nominal 115 volt AC (Alternating Current) household power.
DESIGN FEATURES
• High efficiency
• Compact size
• Low Idle current
• Soft Start Technology
• LCD remote Control (for 1000 W, 1500 W & 2000 W models).
POWER RATINGS
The continuous power ratings of the models are as follows:
• SSW-350-12A - 350 Watts
• SSW-600-12A - 600 Watts
• SSW-1000-12A - 1000 Watts
• SSW-1500-12A - 1500 Watts
• SSW-2000-12A - 2000 Watts
PRINCIPLE OF OPERATION
The inverter converts power in two stages. The first stage is a DC to DC conversion process that raises the
low voltage DC at the inverter input to high voltage DC of approximately 150 VDC. The second stage is
the actual inverter stage that converts the high voltage DC into nominal 115 VAC, 60 Hz AC (rMS). The
DC-to-DC converter stage uses modern high frequency power conversion techniques that have replaced
the bulky transformers found in less technologically-advanced models. The inverter stage uses advanced
power MoSfeT transistors in a high frequency full bridge configuration.
THE OUTPUT WAVEFORM
The AC output waveform of the SSW-series inverter is known as “Pure Sine Wave” or “True Sine Wave”.
It is a waveform that has characteristics same to the sine wave shape of utility power (See fig. 1).
fig.1. Pure Sine Wave Waveform
1.0
- 1.0
0.5
- 0.5
- 6 - 4 - 2 6 4 2