Simulation and Analysis of a Voltage-Mode Controlled Buck Converter for Energy Harvesting Application

This chapter delves into the simulation and analysis of a voltage-mode controlled buck converter tailored for energy harvesting applications. It begins with a review of related work, highlighting the importance of efficient power conversion in maximizing the utility of harvested energy. The methodology section provides a detailed explanation of the converter's components, including the switching device, inductor, diode, capacitor, and load resistor, and their roles in ensuring stable output voltage. The design process involves defining power-stage characteristics, deriving dynamic models, and selecting suitable controller architectures. Key equations and component values are provided, along with a discussion on the feedback controller and its role in maintaining stability. The results section presents simulation graphics that demonstrate the converter's performance, including the ramp signal, PWM signal, and output voltage and current waveforms. The conclusion summarizes the findings, emphasizing the effectiveness of voltage-mode control in maintaining precise output voltage regulation and the converter's high efficiency over a broad range of operating conditions. This chapter offers valuable insights into the design and optimization of buck converters for energy harvesting applications, making it a must-read for professionals in the field.