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December 2015

DocID025594 Rev 3

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STEVAL-ISV021V1

Energy harvesting demonstration kit based on SPV1050

Data brief

Features

• SPV1050 based harvesting dongle board

• PV module soldered on the back

• Lithium coin cell battery

• PV module electrical characteristics at 200 lux:

• Li-Ion battery:

• Interface to power monitoring board

• PV module voltage and battery monitoring

• Ambient light sensor for irradiance level

measurement

• Supported by SW GUI to show MPPT accuracy

and conversion efficiency

Description

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 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 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 embeds an

extension connector to interface and to monitor of

some of SPV1050 input and output signals

through a microcontroller based board.

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