Design and Development of PWM based Solar Hybrid Charge Controller

This paper presents the PWM-based Solar Hybrid Charge Controller (SHCC) that automatically switches the power source between the solar power or grid, based on the availability of solar power. The proposed charger is working as a hybrid charger for grid and solar energy. The hybrid charge controller is designed to execute the essential functions of uninterrupted power supply to the load, charge-discharge management of the battery, and to feed constant voltage-current during charging of the battery. The results obtained demonstrate the required performance of the hybrid charge controller for its applications in the 24-hour running operation of the load systems.