Statpower Portawattz 3000, Руководство пользователя, Страница: 5 / 36

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1 Introduction
Your new Portawattz 3000 inverter is a member of the most advanced line
of DC to AC inverters available today. It will give you years of dependable
service in your boat, RV, service vehicle or remote home.
To get the most out of your Portawattz 3000, it must be installed and used
properly. Please read the installation and operating instructions in this
manual carefully before installing and using your Portawattz 3000. Pay
special attention to the
CAUTION and WARNING statements in this
manual and on the unit. CAUTION statements identify conditions or
practices which could result in damage to your unit or to other equipment.
WARNING statements identify conditions or practices that could result
in personal injury or loss of life.
2 How Your Portawattz
TM
3000 Inverter Works
An inverter is an electronic device that converts low voltage DC (direct
current) electricity from a battery or other power source to standard 115
volt AC (alternating current) household power. In designing the Portawattz
3000, Statpower has used power conversion technology previously
employed in computer power supplies to give you an inverter that is
smaller, lighter, and easier to use than inverters based on older technology.
2.1 Principle of Operation
The Portawattz 3000 converts power in two stages. The first stage is
a DC-to-DC converter which raises the low voltage DC at the inverter
input to 145 volts DC. The second stage is the actual inverter stage.
It converts the high voltage DC into 115 volts, 60 Hz AC.
The DC-to-DC converter stage uses modern high frequency power
conversion techniques that eliminate the bulky transformers found in
inverters based on older technology. The inverter stage uses
advanced power MOSFET transistors in a full bridge configuration.
This gives you excellent overload capability and the ability to operate
tough reactive loads like lamp ballasts and induction motors.