In this paper the design criteria for a MPPT-Out controller of
a PV battery charger are presented. It has been demonstrated
that the photovoltaic battery charger can be made using a
simple converter without feedback; a proper choice of the
MPPT controller parameters can be carried out on the basis of
suitable equations obtained by using an approach similar to
that one discussed in [7].
The built prototype is characterised by good performances in
terms of MPPT efficiency and current regulation of the battery.