Non-inductive DC-DC regulated boost converter as battery charger for photovoltaic installation

This paper describes non-inductive regulated DC-DC boost converter which is used for the first time to realize a charge controller for battery in a photovoltaic system. It comprises of a photovoltaic module, voltage regulator and a battery. Regulator non-inductive is performed using only capacitors as charge storing elements that makes it economical. To regulate output of converter and to reduce complexity in the number of electronic parts, a microcontroller is used. It regulates the voltage supplied by photovoltaic module into values suitable for charging a 12 V 4.5 AH sealed lead acid battery using Pulse Width Modulation (PWM) technique. PWM is implemented on Arduino Uno to control duty cycle of the switches in order to maintain the output voltage within 13.5-14.0 V.