Title :
Design of a constant current solar charge controller with microcontroller based soft switching buck converter for solar home lighting system
Author :
Werulkar, A.S. ; Kulkarni, P.S.
Author_Institution :
Dept. of Electron. & Telecommun., St. Vincent Pallotti Coll. of Eng. & Technol., Nagpur, India
Abstract :
This paper describes the design of a solar charge controller with microcontroller based soft switching buck converter. Zero current switching technique is used for buck converter design. Atmega 16 microcontroller is used for generating the necessary PWM switching signal. The output voltage of the solar panel is reduced to 15 V and it is applied to a charge controller circuit. The overcharge protection and under charge alarm is available in the charge controller circuit. The settings of these protection circuits are adjustable through potentiometers. Win AVR software is used as a compiler for the generation of necessary hex file.12V, 45 Ah lead acid battery is used for charging purpose.
Keywords :
electric current control; lead acid batteries; lighting; microcontrollers; power engineering computing; solar cells; switching convertors; zero current switching; Atmega microcontroller; PWM switching signal; Win AVR software; buck converter design; charge controller circuit; constant current solar charge controller; hex file; lead acid battery; overcharge protection; potentiometers; protection circuits; soft switching buck converter; solar home lighting system; undercharge alarm; voltage 12 V; voltage 15 V; zero current switching technique; Batteries; Microcontrollers; Software; Voltage control; Zero current switching; AVR microcontroller; Charge controller; Lead acid battery; Under over Voltage protection; ZCS buck converter;
Conference_Titel :
Power Electronics, Drives and Energy Systems (PEDES), 2012 IEEE International Conference on
Conference_Location :
Bengaluru
Print_ISBN :
978-1-4673-4506-4
DOI :
10.1109/PEDES.2012.6484337
