Implementation of Universal Solar Charger for EV applications using a Cascaded Buck-Boost Converter

With the evolution of Electric Vehicles (EVs) in the modern world, the need for development of charging infrastructure for EVs has become paramount. In this paper, the implementation of a universal solar charger using a DC-DC converter has been discussed. The universal solar charger is needed for charging the EVs using solar panels and reduces the energy demand from the power grid. A buck-boost converter has been implemented using the MSP430G2553 microcontroller which charges the battery using Maximum Power Point Tracking (MPPT) technique. MPPT is implemented to improve the efficiency of the solar converter and enables the converter to extract maximum power from the solar panels for charging the battery. Suitable charging modes like Constant Voltage (CV) and Constant Current (CC) modes are required to prevent overcharging of the battery. The designed converter would prove to be an efficient solution for the charging of EVs and help the expansion of EVs in the world.