MATLAB Model Implementation of BUCK Converter

This article provides a comprehensive analysis of the BUCK converter MATLAB model implementation. This circuit design tool operates in continuous conduction mode (CCM) where duty cycle adjustments directly regulate output voltage. The model is extensively utilized in electronic engineering applications, particularly in power electronics and DC-DC converter design. The BUCK converter model is renowned for its high efficiency, reliability, and flexibility, leading to widespread adoption across multiple industries.

From an implementation perspective, the MATLAB model typically employs Simulink components including voltage sources, MOSFET switches, diodes, LC filters, and load resistors. Key simulation functions involve PWM generation blocks for duty cycle control (using sawtooth carriers and comparators), power electronics components from Simscape/Specialized Power Systems library, and voltage/current measurement blocks for performance analysis. The core algorithm implements Kirchhoff's voltage/current laws through numerical solving techniques like ode23tb for power electronics systems.

We will conduct in-depth examination of the model's operational principles and practical applications to enhance understanding of its working mechanism. This investigation aims to provide valuable insights and practical information for researchers and practitioners in the electronic engineering field, including implementation techniques for dynamic response analysis and efficiency optimization through MATLAB's simulation environment.