Abedin, Amina HasanAhmed, Shaik RajuNoor, Nusrat JahanMostafa, Sumaiya2017-12-182017-12-1820172017ID 12221033ID 13221051ID 13221044http://hdl.handle.net/10361/8615Cataloged from PDF version of thesis.Includes bibliographical references (page 51-52).This thesis report is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017.Modeling is the mathematical representation of a circuit. For mathematical representation knowledge of state space modeling or state space representation is required. For state space representation, it is necessary to define the state variable of a circuit. State variable is the kind of variable that can be represented in the form of integration. Mathematical representation of the actual circuit which represents the output with respect to the input in non-linear is known as large signal representation. It is not possible to control the circuit when it is in large signal model/representation. For controlling it is necessary to bring the circuit in the specific operating range at a certain steady state point. Around this point range the circuit is called linearized.Applying any of the specific control technique on the linearized circuit we will design the controller .Controller will sense the output and determine the deviation where from it will be determined how much D (Duty Cycle) will be needed to add or subtract with the steady state D in order to operate the converter properly.52 pagesenBRAC University thesis is protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.Space modelingController designBuck converterPWMThesis