Latest Issue
Evaluation of Modified Asphalt Binders Incorporating Recycled Plastic Waste for Enhanced Pavement Performance
Published: August 31,2026An Evaluation of ANPR Technology for Traffic Violation Detection at Signalized Intersections in Phnom Penh
Published: August 31,2026Development of Eco-Friendly Microplastic Removal Filter For Sea Salt Farm
Published: August 31,2026Flood Modeling in the Lower Mekong Basin: A 2D Hydrodynamic Approach in Cambodia
Published: August 31,2026Monitoring Water Quality in Indoor Mud Crab (Scylla serrata) Farming Systems
Published: August 31,2026DEM Parameter Calibration of Biomass Materials (Sawdust, Tree Leaves, and Mixture) Using Experimental Angle of Repose Tests
Published: August 31,2026Development of Oyster Sauce Using Japanese Oysters, Green Mussels, and Clams
Published: August 31,2026Comparison of Sourdough Bread Made by Using Different Percentages of Sourdough Starter with and without Addition of Instant Dry Yeast
Published: August 31,2026Analysis of Pesticide Residues in Groundwater of Agriculturally Intensive Regions of Cambodia
Published: August 31,2026Development of Soy Sauce by Using Different Molds during Koji Fermentation
Published: August 31,2026Design Of Buck Converter For Low Power Application A Comparative Study For Selecting The Semiconductor Devices
-
1. Department of Electrical and Energy Engineering, Faculty of Electrical Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh, Cambodia
Received: January 28,2025 / Revised: April 23,2025 / / Accepted: April 30,2025 / Available online: April 30,2026
This paper presents a detailed analysis of semiconductor device selection for a buck converter, emphasizing the optimization of MOSFETs and diodes to enhance performance and efficiency. The study evaluates three MOSFETs (IRFZ44N, IRFZ46N, and Si4410DY) in combination with three diodes (MBRS340, MBR745, and B550C) to assess their influence on converter efficiency, voltage ripple, and output stability. Comprehensive calculations for passive components, including inductors and capacitors, are performed to ensure an optimal design for stepping down a 12V input to a 5V output with a 2A load. Simulations using LTspice provide insights into component behavior under varying conditions, enabling a comparison of performance metrics for different MOSFET-diode pairings. Additionally, the study includes a PCB layout design for the optimized buck converter, facilitating practical validation of the simulation results. The results highlight the best pairing based on voltage ripple, efficiency, and output stability. This study offers valuable guidelines for selecting semiconductor devices in buck converter designs, striking a balance between performance and cost-effectiveness.