AN4217

STEVAL-ISV0x8V1 parallel and series connection

Doc ID 024010 Rev 1

7/22

3.0.2

STEVAL-ISV018V1 series connection

This topology provides an output voltage that is the sum of the output voltages of each

SPV1020 connected in series. The following information shows how the output power is

determined by the output series connection.

Figure 10 shows a detail of the series connection topology:

In this case, the topology constraint implies:

Equation 7

In the case where the irradiation is the same for each panel:

Equation 8

So

Equation 9

Lower irradiation for one panel, for example on panel 2, causes lower output power, so

Figure 10.

STEVAL-ISV018V1, panel

connections for output series

connection

Figure 11.

STEVAL-ISV018V1, components

configuration for output series

connection

3

2

1

=

=

=

3

2

1

+

+

=

3

2

1

=

=

*

3

=

]

3

..

1

[ =

x

3

1

=

*

1

*

=

=

3

1

=