Xantrex Technology PH1800 manual Introduction, Principles of Inverter Operation

Introduction

Introduction

Thank you for your purchase of this Xantrex Home Power System. The modified sine wave AC output from the inverter ensures AC loads operating from the unit perform efficiently and correctly.

To get the most out of your PowerHub 1800, carefully read and follow the instructions in this guide. Pay special attention to the Important Safety Instructions and to the CAUTION and WARNING statements found throughout this manual and on the product. Please retain all packaging.

Should you have any questions before, during, or after the installation, please contact Xantrex Customer Support. Please see “How do you get service?” on page WA–1 in this Guide for contact information.

Principles of Inverter Operation

The PowerHub 1800 converts power from the batteries in two stages. The first stage is a DC-to-DC converter, used to raise the low voltage DC input to high voltage DC. The second stage is the actual inverter stage, taking the high voltage DC and converting it to a modified sine wave AC output.

The DC-to-DC converter stage uses modern high frequency power conversion technology that eliminates the bulky, low frequency (50/60 Hz) based transformers found in inverters using older technology. The inverter stage uses advanced power semiconductors that provide excellent overload capabilities.

+

–

DC to DC Converter

+

High Voltage

DC

–

DC to AC Converter

Modified

Sine Wave

AC

Transfer Relay

		AC
H	L	INPUT
G	↓
N	N

N	AC
	N OUTPUT
G
	↓
H
	L

Figure 1-1	Principles of Inverter Operation
Output	The AC output waveform of the PowerHub 1800 is a “modified sine
Waveform	wave” .

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