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To produce AC from 12 VDC a couple of steps or conversions take place inside the inverter. First step is the input voltage (12 volts) is increased to 145 VDC. Step two, the 145 VDC is converted to 110 VAC by using advanced MOSFET transistors. The resulting AC output from this conversion is called a “modified sine wave”. It looks like a squared off sine wave.
