Novel Battery Charging Control System for Batteries Using On/Off and Pwm Controllers for Stand Alone Power Systems

Photovoltaic or in short term PV is one of the renewable energy resources that recently has become broader in nowadays technology. The demand or future work is looking for high efficiency, more reliable and economical price PV charge controller which is come in portable size has become very popular in PV system. In this paper, two different topologies of chargers will be simulated using proteus professional software. Both configurations are designed based on microcontroller (Atmega 32) which reduces complexity in the number of electronic components and increased monitoring and regulative functions. Pulse width modulation (PWM) will be implemented on a MCU to control duty cycle and voltage. Liquid Crystal Display (LCD) is used to display the voltage from rechargeable battery. The benefit of this project is an improvement of efficiency depend on duty cycle and voltage change.