The design and simulation of a battery charger is presented, for medical applications using three-state mode charge, containing Buck converter lead-acid battery. Implementing Proportional Integral (PI) controllers, to modify the duty cycle converter, in such way that subjected 3 states during charging process, PI controller reference changes each states. In this with single controller. order pr...

Abstract Because the electricity storage of renewable energy is irregular, battery in this system will be impacted by current. This also have a negative impact on life, increase project cost and lead to pollute environment. study proposes method improve life: hybrid super-capacitor lead-acid key solve these problems.