Operator`s manual

Installation and Operator’s Manual Page 13 of 62
(PVI-2000-OUTD-UK
Rev: 1.0)
2.3 AURORA Technical Description
Figure 4 shows a block diagram of AURORA. The main blocks are the input Dc-
Dc converter (called booster) and the output inverter. Both the Dc-Dc converter
and the output inverter work at high switching frequency to minimize size and
weight.
This model of AURORA is transformer-less, that means that there is no galvanic
isolation between input and output. This allows an increase to the inverter
efficiency. AURORA is equipped with all the protection needed to operate safely
and to comply with existing safety regulations even without an isolation
transformer.
Fig.4 AURORA block diagram
Thanks to its high efficiency and large heat-sink, AURORA offers max. power
operation over a wide ambient temperature range.
The inverter is digitally controlled by means of two independent Digital Signal
Processors (DSP), and one microprocessor.
Two single-chip independent computers maintain control in full compliance with
the electric standards relating to systems power supply and safety.