Design and analysis of digital control buck converter for optimum performance

Elisa Razali, Nur Ain and Alam, AHM Zahirul (2025) Design and analysis of digital control buck converter for optimum performance. Asian Journal of Electrical and Electronic Engineering, 5 (1). pp. 32-39. E-ISSN 2785-8189

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Abstract

This paper aims to design and analyze a digitally controlled buck converter meant for applications requiring DC voltage under varying input voltages and load conditions. The buck converter is designed with a switching frequency of 40 kHz, an inductor value of 200 µH, and a capacitor of 100 µF with Pulse Width Modulation (PWM). The Proportional-Integral (PI) controller is used to maintain the output voltage steady. For simulation and performance evaluation, PSpice and MATLAB/Simulink software are selected. This paper aims to create a digital control system that is better than the traditional analog controllers, offering precise and adaptive regulation. The simulation results highlight how effective the digital PI controller is at reducing voltage ripple and maintaining the output voltage, even when the inputs and loads vary. This study covers detailed parameter calculations, controller design, circuit simulation, and performance analysis, providing a thorough overview of the digitally controlled buck converter system

Item Type:	Article (Journal)
Uncontrolled Keywords:	Buck Converter, Pulse Width Modulation (PWM), PI controller
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Prof. Dr. AHM Zahirul Alam
Date Deposited:	12 Aug 2025 11:33
Last Modified:	12 Aug 2025 11:33
URI:	http://irep.iium.edu.my/id/eprint/122600

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