Optimizing the energy from the panel

AN3971

8/28

Doc ID 022119 Rev 2

Figure 6.

Input voltage partitioning sample circuit

Input voltage partitioning is important in order to adapt the correct panel to insert in the

standalone PV system, also according to the battery current capability and the charging

time necessary to reach the total battery SOC.

2.1

Regulations, protection, and features

The STEVAL-ISV005V2 implements the application settings to use the protection provided

by the SPV1020 IC, which can be summarized as follows:

●

Overtemperature protection

●

Output overvoltage regulation

●

Output overvoltage protection: input overcurrent protection

●

Current balance

●

Input MPPT settings.

For details regarding the above list of protection and functionalities, please refer to the

SPV1020 datasheet and its basic application STEVAL-ISV009V1.

In addition to the above list, the STEVAL-ISV005V2 also implements an output overcurrent

protection through the SEA05 IC (details in Section 3.2 of this document).

Figure 7 offers a brief description of the architecture implemented.