PRINCIPLE OF OPERATION
The inverter converts power in two stages. The first stage is a DC to DC
conversion process that raises the low voltage DC at the inverter input to 150 volts
DC. The second stage is the actual inverter stage that converts the high voltage
DC into 115 volts, 60 Hz AC(rms). The DC-to-DC converter stage uses modern
high frequency power conversion techniques that have replaced the bulky
transformers found in less technologically-advanced models. The inverter stage
uses advanced power MOSFET transistors in a high frequency full bridge
configuration.
THE OUTPUT WAVEFORM
The AC output waveform of the inverter is known as “Pure Sine Wave” or “True
Sine Wave”. It is a waveform that has characteristics same to the sine wave shape
of utility power. (See Figure 1).
FIGURE 1 :
Pure Sine Wave Waveform
INSTALLATION / ENVIRONMENTS
POWER SOURCE REQUIREMENTS
The power source must provide between 10.5 and 15.5 volts DC and must be able
to supply the necessary current to operate the load. The power source may be a
battery or a well-regulated DC power supply. To obtain a rough estimate of the
current (in amperes) the power source must deliver, simply divide the power
consumption of the load (in watts AC) by 10.
Example: lf a load is rated at 100 watts AC, the power source must be able to deliver: 100 /
10=10A