4 | SAMLEX AMERICA INC.
SECTION 2 |
Features, Applications &
Principle of Operation
applications
• Backup AC Power Source or Off-Line AC UPS (Un-interruptible Power Supply) to
provide AC power during power outages
• 12V Lead Acid Battery charging
• RVs, trucks and remote housing
Soft Start tecHnoLoGy
This feature offers the following advantages:
• When the inverter is switched ON, the voltage ramps up to 115 VAC in around 2 sec. If the
load was already oN at the time of switching oN of the inverter, starting surge current
demanded by certain reactive devices like motors etc. will be reduced and there will be less
likelihood of the inverter shutting down due to overload.
• If the inverter is switched ON first and then a load with higher starting / inrush current like
SMPS / motor is switched oN, the voltage will dip momentarily and then recover to reduce
inrush / starting surge current in the load as above.
• Similar overload reduction will be initiated during any other sudden higher
loading conditions.
LoW interference tecHnoLoGy
Innovative circuit design and noise filtration circuitry reduces RF interference in TV
picture, audio and radio equipment .
cooL Surface tecHnoLoGy
Normally, heat dissipating components are mounted directly on internal metal chassis
surface of the inverter and hence, the chassis surface may rise to unsafe touch-tempera-
ture. In this inverter, heat-dissipating components are not mounted directly on the chassis
of the unit but on PCb (Printed Circuit board) mounted heat sink and, there is air gap
between the heat sink and the chassis surface. The heat sink is cooled by load-controlled
fan. As there is no direct contact between the heat sink and the chassis, the chassis surface
remains much cooler and is safer to touch.
LoaD controLLeD cooLinG fan
Cooling is carried out by convection and by forced air circulation by load-controlled fan.
The fan will normally be off and will be switched oN automatically as follows:
• Inverter supplying AC load(s): When load(s) ≥ 85W
• Battery Charging/AC Pass Through Mode: When charging current ≥ 3A
This will reduce energy consumption by the fan and will increase overall efficiency.
Summary of Contents for SAM-1500C-12
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