LEVEL SHIFTING SWITCHED CAPACITOR VOLTAGE COPIER CIRCUITS WITH FEEDBACK CONTROL

Abstract

Nowadays developments are occurring in the field of sustainable energy sources. Sustainable energy sources like photovoltaic systems and fuel systems require differ ent levels of power supplies. Traditionally, transformer or inductor based multiport dc-dc converters were used. But these converters have high electromagnetic interfer ence and are larger in size. In this seminar report, a level shifting switched capacitor voltage copier circuits with feedback control is introduced with less number of com ponents. There are five circuits namely summation, subtraction, double, half and inverting circuits. The concept is further extended. A small resonant inductor is introduced to limit the switching current. Thus zero current switching is achieved. Simulation has been carried out to study the performance of the proposed topology in MATLAB/SIMULINK environment. Simulation results are analysed and results are presented for circuit.