Principle Of Operation; Layout - Samlexpower PST-15S-12A Owner's Manual

PRINCIPLE OF OPERATION

The inverter converts the 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 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.
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1 120V AC output receptacle
2 L.E.D. indicator
3 On/Off Switch
4 Cigarette Lighter Plug
5 Cooling fan
(back of the unit - not shown)
6 Grounding lug
(back of the unit - not shown)
CAUTION!
Reverse polarity of input connection will blow the fuse inside the inverter and
may cause permanent damage. Ensure that the cigar lighter socket used for
powering the inverter has the correct polarity with respect to the cigar lighter
plug's, positive (+) & negative (-) contact points. The contact at the tip of the
cigar lighter plug is positive (+) and the two spring loaded bow type contacts
on the sides are negative (-). Damage due to reverse polarity is not
covered by warranty.

LAYOUT

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