AN4396 Datasheet, PDF (1/19 Pages) STMicroelectronics – The STEVAL-ISV021V1 is a demonstration kit which consists

AN4396
Application note
STEVAL-ISV021V1, energy harvesting system based on SPV1050,
PV panel and battery
Domenico Ragonese
Introduction
The STEVAL-ISV021V1 is a demonstration kit which consists of a complete energy
harvesting module based on the SPV1050 ULP energy harvester and battery charger,
having the purpose to show the electrical performance of the power converter and many
other fundamental electrical quantities related to the overall system.
The SPV1050 power manager is configured as a buck-boost converter, fitting the electrical
characteristics of the mounted PV panel and battery.
A power monitoring board along with a software GUI are used to monitor and to graph both
of the PV panel and battery voltage and current, and system performances, like MPPT
accuracy and conversion efficiency.
The STEVAL-ISV021V1 represents the standalone harvesting module that can be
interfaced with a wireless sensor node to provide the microcontroller, transmitter and
sensors with the energy scavenged and stored into the battery.
Furthermore, the STEVAL-ISV021V1 harvesting module embeds an extension connector
to interface and to monitor of some of the SPV1050 input and output signals through
a microcontroller based board.
The complete STEVAL-ISV021V1 kit is shown in Figure 1.
Figure 1. Power monitoring board (left) and harvesting module (right), top view
June 2014
DocID025514 Rev 1
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