STEVAL-ISV0x8V1 parallel and series connection

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STEVAL-ISV0x8V1 parallel and series connection

The output pins of different SPV1020 devices can be connected both in parallel and in

The objective of this section is to show how the output power is impacted by the selected

topology.

Examples with three PV panels are presented and the results can be extended to a larger

number of PV panels.

Equation 1

When the SPV1020 is off, system efficiency will depend upon the drop of the bypass diodes

(D1, D10, D12, as shown in the STEVAL-ISV0x8V1 schematics see Figure 17 and

Figure 18):

Equation 2

In the case of panel completely shaded:

Equation 3

3.0.1

STEVAL-ISV008V1 parallel connection

This topology guarantees the desired output voltage even if only one of the panels is

irradiated. Output voltage of the STEVAL-ISV008V1 is limited to the SPV1020 maximum

output voltage, which is 40 V.

Figure 5 and 6 show details of the parallel connection topology:

=

]

3

..

1

[ =

x

bp

η

=

]

3

..

1

[ =

x

0

=

Figure 6.

STEVAL-ISV008V1, panel

connections for output parallel

connection

Figure 7.

STEVAL-ISV008V1, component

configuration for output parallel

connection