
STMicroelectronics
Description
The STEVAL-ISV005V1 demonstration board is mainly based on the SPV1020 device, a monolithic DC-DC boost converter designed to maximize the power generated by photovoltaic panels independently of temperature and amount of solar radiation.
The optimization of the power conversion is obtained with an embedded logic which performs the MPPT (max power point tracking) algorithm on the PV cells connected to the converter.
One or more converters can be housed in the connection box of the PV panels, replacing the bypass diodes. Since the maximum power point is locally computed, the efficiency at system level will be higher than that of conventional topologies, where the MPP is computed in the main centralized inverter.
FEATUREs
■ PWM mode DC-DC boost converter
■ Duty cycle controlled by the MPPT algorithm
with 0.2% accuracy
■ Operating voltage range 0-40 V
■ Overvoltage, overcurrent, overtemperature
protections
■ Built in soft-start
■ Up to 98% efficiency
■ Automatic transition to burst mode for
improved efficiency at low solar radiation
■ SPI interface
■ Output current limitation
■ RoHS compliant