• A. A. Dutta
• Ruchita Gedam
• Monali Kalbhande
• Payal kamble

This paper brings forth a concept of microcontroller based charge controller using PWM technique. This technique can be implemented by fast actuating microcontroller such as ATmega8, Aurdino (ATmega328) and PIC16F877 microcontroller. The microcontroller charges a 12V battery using 80W solar panel. The main feature of the charge controller is dusk to dawn operation; it switches on the load i.e (light) at evening hours and switches off at morning hours. During day, the load is cut off from the battery and the battery is to be recharged from the solar panel. When the battery is fully charged, the charging current becomes “pulsed” interrupted by microcontroller. “Battery Full” will be displayed on the liquid crystal display (LCD). An inbuilt analog to digital converter (ADC) is used to determine voltage level of the battery and the solar panel voltage

Solar panel, charge controller, battery microcontroller.

"Implementation of Fast Operating Microcontroller Based Charge Controller for Photovoltaic Cell", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.216-219, May-2019, Available :http://www.jetir.org/papers/JETIRBV06046.pdf

"Implementation of Fast Operating Microcontroller Based Charge Controller for Photovoltaic Cell", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp216-219, May-2019, Available at : http://www.jetir.org/papers/JETIRBV06046.pdf