Controlling of Fast dynamic DC/DC Buck Converter

Abstract: This paper presents, linear peak current mode controller for the control of DC/DC buck converter is designed and analyzed. Dynamic equations describing the buck converter are derived and linear peak current mode controller is designed. The buck converter, the voltage mode and current mode controller are modeled and are evaluated by computer simulations. The proposed technique has the advantages of reduced inductor current ripple, which in turn makes the DC load voltage to be stable and faster dynamic response. DC/DC buck Converter modeling, analysis, design criteria and Simulation results are presented. Simulation is done by using mathematical model of buck converter in MATLAB/SIMULINK environment.

Keywords: DC/DC Buck converter; voltage mode control (VMC); Current mode control (CMC); Linear peak current mode control (LPCMC);