Power electronics refers to a subfield of electrical engineering concerned with processing of high voltages and currents in order to deliver power that supports a variety of needs. It encompasses a multidisciplinary study of various concepts in physics, including electrical motors, semiconductor physics, electromagnetic devices, mechanical actuators, and control systems. It is concerned with designing, controlling, and transforming power into an electric form through a power electronic system. The main component of power electronic system is a switching power converter. There are several applications of power electronics systems, such as power generation, power transmission, power distribution, and power control. Power electronics has a number of advantages such as improved efficiency in power conversion, high power density supplies, wireless power transfer, and providing power according to the specifications. This book outlines the processes and applications of power electronics in detail. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail. With state-of-the-art inputs by acclaimed experts of this field, this book targets students and professionals.