Preface

In today's fast-evolving technological landscape, the realm of power electronics, radio frequency (RF), and microwave engineering stands as a cornerstone of modern innovation. The remarkable expansion of power converter technology has ushered in a new era, where its influence permeates through an extensive spectrum of low-, medium-, and high-power applications. The intrinsic ability to efficiently manage electrical energy has catalyzed this surge, revolutionizing industries and redefining possibilities.

Central to this transformation is the high penetration of cutting-edge microprocessors with the capacity to implement high-performance nonlinear digital controllers. These dynamic controllers, coupled with recent strides in the development of high-frequency switching power electronic devices, have ushered in a paradigm shift. The reduction in on-state loss and consequential switching loss of power semiconductors has significantly bolstered the efficiency of modern power converters. Consequently, these advancements have not only shrunk the size of power converters but also mitigated heat generation, making these devices more efficient in the energy conversion process.

Amidst this scenery, a multitude of novel power converter topologies has surfaced in recent literature, each tailored to emerging applications. These innovative designs encompass diverse criteria and intricacies, often intricately intertwined with the digital control systems they employ. This book provides readers with a comprehensive overview of the prevailing state of the art, covering topics ranging from design principles to the realm of emerging applications, and delving deep into the nuances of control systems. Our intention is to provide a coherent narrative that encapsulates recent breakthroughs in topics such as power electronics, RF, and microwaves while concurrently fostering an environment of exploration and innovation on these topics.

We extend our gratitude to the contributors who have shared their knowledge, and we are confident that this volume will serve as a useful resource for researchers, practitioners, and enthusiasts alike. It is our sincere hope that *Power Electronics, Radio Frequency and Microwave Engineering* sparks new ideas, fosters collaboration, and continues to propel the evolution of this captivating field.

Sincerely,

**Raúl Gregor** Faculty of Engineering, Department of Electronic and Mechatronic Engineering, National University of Asunción, San Lorenzo, Paraguay

#### **Kim Ho Yeap**

Section 1

Power Electronics

Associate Professor, Universiti Tunku Abdul Rahman, Petaling Jaya, Malasyia

#### **Augustine O. Nwajana**

Senior Lecturer, University of Greenwich, London, United Kingdom
