This book provides a comprehensive and systematic treatment of boost converter systems, covering theoretical foundations, modelling techniques, stability analysis, digital simulation, and practical implementation. This book begins by addressing power quality issues associated with three-phase parallel AC–DC converters in distribution systems. Through modelling and simulation using MATLAB/Power System Blocksets, it demonstrates how unbalanced currents and negative- and zero-sequence components degrade system performance. This motivates the use of stand-alone boost converters as an effective alternative for maintaining power quality within international standards. Overall, this book uniquely integrates stability analysis, modelling, simulation, and digital logic–based implementation of boost regulator systems, making it a valuable reference for both academic study and professional engineering practice. This book is aimed at senior undergraduate and graduate students, researchers, and practicing engineers working in power electronics and control systems.