Principle Of Operation; Layout - Samlexpower PST-30S-12A Owner's Manual

PRINCIPLE OF OPERATION

The inverter converts the 12 V (nominal) DC voltage of the battery to 120 V, 60 Hz. AC
voltage.
The voltage conversion takes place in two stages. In the first stage, the 12 V (nominal)
DC voltage of the battery is converted to a high voltage DC using high frequency
switching and Pulse Width Modulation (PWM) technique. In the second stage, the high
voltage DC is converted to 120 V, 60 Hz. sine-wave AC again using PWM technique.
This is done by using a special wave shaping technique where the high voltage DC is
switched at a high frequency and the pulse width of this switching is modulated with
respect to a reference sine-wave.
1
1 120V AC output receptacles
2 L.E.D. indicator
3 On/Off Switch
4 Input terminals
RED - Positive (+)
BLACK or WHITE - Negative (-)
5 Cooling fan
(back of the unit - not shown)
6 Grounding lug
Accessories Included
3' battery cable with battery clips, 3' battery cable with cigar plug

LAYOUT

3
2
(back of unit -not shown)
(back of the unit - not shown)
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