STEVAL-ISV021V1 STMicroelectronics

STEVAL-ISV021V1 Energy harvesting demonstration kit based on SPV1050 Data brief 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 Features system performances like MPPT accuracy and conversion efficiency. SPV1050 based harvesting dongle board PV module soldered on the back The STEVAL-ISV021V1 represents the standalone harvesting module that can be Lithium coin cell battery interfaced with a wireless sensor node to provide PV module electrical characteristics at 200 lux: the microcontroller, transmitter and sensors with VOC = 9.8 V, ISC = 20 A TYP TYP the energy scavenged and stored into the battery. VMP = 8 V, IMP = 18 A TYP TYP Furthermore, the STEVAL-ISV021V1 embeds an Li-Ion battery: extension connector to interface and to monitor of Capacity = 120 mAh some of SPV1050 input and output signals NOM through a microcontroller based board. V = 3.6 V NOMINAL V = 4.2 V CHARGE V = 2.75 V END-OF-DISCHARGE 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 December 2015 DocID025594 Rev 3 1/10 For further information contact your local STMicroelectronics sales office. www.st.comSchematic and bill of material STEVAL-ISV021V1 1 Schematic and bill of material The schematic, bill of material and gerber files can be downloaded from the Design resources tab of the STEVAL-ISV021V1 product folder on www.st.com. 2/10 DocID025594 Rev 3