Modeling and Simulation of DC-DC Converters

Abstract

To control the DC supply voltage at desired level DC-DC converters has been used efficiently. DC-DC converters are the electronic devices. Comparing to AC voltage, DC voltage cannot be step up and step down by using transformer. This thesis mainly aims at the several converters are in isolated configuration which are operated under several control schemes for desired output conditions. Here the main focus on the analysis, design and simulation of the several converters. There are so many applications involving high level of DC voltages. These applications require high power; therefore boost converters operated at high frequency which can control the output voltage at desired voltage level using various control techniques. The analysis and design of various converters have been carried out for various performance parameters, different input value and an output value. These converters are boost converter; forward converter, push pull, half bridge converters and full bridge converter have been designed mainly to deliver the DC output voltage for different input voltages. Various converters have been simulated with the help of MATLAB® for different input voltages. The design concepts are validated through simulation in MATLAB® and different results are obtained for comparison between these converters.