A unique text on the theory and design fundaments of inductors and transformers, updated with more coverage on the optimization of magnetic devices and many new design examples The first edition is popular among a very broad audience of readers in different areas of engineering and science. This book covers the theory and design techniques of the major types of high-frequency power inductors and transformers for a variety of applications, including switching-mode power supplies (SMPS) and resonant dc-to-ac power inverters and dc-to-dc power converters. It describes eddy-current phenomena (such as skin and proximity effects), high-frequency magnetic materials, core saturation, core losses, complex permeability, high-frequency winding resistance, winding power losses, optimization of winding conductors, integrated inductors and transformers, PCB inductors, self-capacitances, self-resonant frequency, core utilization factor area product method, and design techniques and procedures of power inductors and transformers. These components are commonly used in modern power conversion applications. The material in this book has been class-tested over many years in the author s own courses at Wright State University, which have a high enrolment of about a hundred graduate students per term. The book presents the growing area of magnetic component research in a textbook form, covering the foundations for analysing and designing magnetic devices specifically at high-frequencies. Integrated inductors are described, and the Self-capacitance of inductors and transformers is examined. This new edition adds information on the optimization of magnetic components (Chapter 5). Chapter 2 has been expanded to provide better coverage of core losses and complex permeability, and Chapter 9 has more in-depth coverage of self-capacitances and self-resonant frequency of inductors. There is a more rigorous treatment of many concepts in all chapters. Updated end-of-chapter problems aid the readers learning process, with an online solutions manual available for use in the classroom. * Provides physics-based descriptions and models of discrete inductors and transformers as well as integrated magnetic devices * New coverage on the optimization of magnetic devices, updated information on core losses and complex permeability, and more in-depth coverage of self-capacitances and self-resonant frequency of inductors * Many new design examples and end-of-chapter problems for the reader to test their learning * Presents the most up-to-date and important references in the field * Updated solutions manual, now available through a companion website An up to date resource for Post-graduates and professors working in electrical and computer engineering. Research students in power electronics. Practising design engineers of power electronics circuits and RF (radio-frequency) power amplifiers, senior undergraduates in electrical and computer engineering, and R & D staff.

This new edition covers the theory and design techniques of the major types of radio-frequency power amplifiers (also named resonant DC-to-AC power inverters). Included are descriptions of Class A, B, AB, C, D, E, DE, and F RF power amplifiers which are used primarily in radio transmitters. The second edition has been completely revised and updated for a new generation of students and design engineers. Some examples are replaced by new and better examples, with many more added. Some end-of-chapter problems are replaced by new problems, and more have been added. More rigorous treatment of many concepts is seen in all chapters (plus all typographical errors have been corrected since the first edition). Chapter 1: Introduction containsmore in-depth coverage of radio communication systems, statistics of transmitter output power level and long-term average transmitter efficiency, and transmitter noise. Many students who take related classes based on the book do not have sufficient background in communications systems, and this updated chapter will help them in their studies. Two brand chapters have been added - the first -Chapter 11 - describes RF power amplifiers with dynamic power supplies. It details the improvement of the efficiency of nearly linear RF power amplifiers (Class A and AB) by the application of a variable supply voltage of RF power amplifiers, as opposed to fixed voltage power supplies, where a variable envelope signals are amplified, such as AM signals. This chapter also covers the applications of variable voltage supply as an AM modulator for RF power amplifiers, where the transistors are operated as switches. The second brand new chapter (Chapter 12) describes RF LC oscillators; an integral part of RF transmitters and also RF receivers. Chapter 8 (Class F RF Power Amplifiers) has been completely revised to cover the latest research results in this area. Old examples are replaced by new examples based on the new equations. Chapter 9 (Linearization and Efficiency Improvements of RF Power Amplifiers) has been extended to include new research results. In the author's experience, some students who take classes based on the first edition do not have sufficient background in electronics. To resolve this, he has added descriptions of operation of transistors as dependent-current sources and as switches. The author has added coverage of transistor current and voltage stresses, and information on the long-term average efficiency of RF transmitters.

AVERAGE CURRENT-MODE CONTROL OF DC-DC POWER CONVERTERS An authoritative one-stop guide to the analysis, design, development, and control of a variety of power converter systems Average Current-Mode Control of DC-DC Power Converters provides comprehensive and up-to-date information about average current-mode control (ACMC) of pulse-width modulated (PWM) dc-dc converters. This invaluable one-stop resource covers both fundamental and state-of-the-art techniques in average current-mode control of power electronic converters featuring novel small-signal models of non-isolated and isolated converter topologies with joint and disjoint switching elements and coverage of frequency and time domain analysis of controlled circuits. The authors employ a systematic theoretical framework supported by step-by-step derivations, design procedures for measuring transfer functions, challenging end-of-chapter problems, easy-to-follow diagrams and illustrations, numerous examples for different power supply specifications, and practical tips for developing power-stage small-signal models using circuit-averaging techniques. The text addresses all essential aspects of modeling, design, analysis, and simulation of average current-mode control of power converter topologies, such as buck, boost, buck-boost, and flyback converters in operating continuous-conduction mode (CCM). Bridging the gap between fundamental modeling methods and their application in a variety of switched-mode power supplies, this book: Discusses the development of small-signal models and transfer functions related to the inner current and outer voltage loops Analyzes inner current loops with average current-mode control and describes their dynamic characteristics Presents dynamic properties of the poles and zeros, time-domain responses of the control circuits, and comparison of relevant modeling techniques Contains a detailed chapter on the analysis and design of control circuits in time-domain and frequency-domain Provides techniques required to produce professional MATLAB plots and schematics for circuit simulations, including example MATLAB codes for the complete design of PWM buck, boost, buck-boost, and flyback DC-DC converters Includes appendices with design equations for steady-state operation in CCM for power converters, parameters of commonly used power MOSFETs and diodes, SPICE models of selected MOSFETs and diodes, simulation tools including introductions to SPICE, MATLAB, and SABER, and MATLAB codes for transfer functions and transient responses Average Current-Mode Control of DC-DC Power Converters is a must-have reference and guide for researchers, advanced graduate students, and instructors in the area of power electronics, and for practicing engineers and scientists specializing in advanced circuit modeling methods for various converters at different operating conditions.

This book is devoted to resonant energy conversion in power electronics. It is a practical, systematic guide to the analysis and design of various dc-dc resonant inverters, high-frequency rectifiers, and dc-dc resonant converters that are building blocks of many of today's high-frequency energy processors. Designed to function as both a superior senior-to-graduate level textbook for electrical engineering courses and a valuable professional reference for practicing engineers, it provides students and engineers with a solid grasp of existing high-frequency technology, while acquainting them with a number of easy-to-use tools for the analysis and design of resonant power circuits. Resonant power conversion technology is now a very hot area and in the center of the renewable energy and energy harvesting technologies.

Resonant power converters have many applications in the computer industry, telecommunications and in industrial electronics. Their advantage over traditional converters lies in their ability to transform power at very high frequencies. This book discusses resonant power converters.