Matthew Scarpinois an engineer with more than 12 years of experience designing hardware and software. He has a master’s degree in electrical engineering and is an Advanced Certified Interconnect Designer (CID+). He is the author ofDesigning Circuit Boards with EAGLE: Make High-Quality PCBS at Low Cost.Introduction 1 Who This Book Is For 2 How This Book Is Organized 2 Let Me Know What You Think 3 Part I: Introduction Chapter 1: Introduction to Electric Motors 5 1.1 Brief History 6 1.2 Anatomy of a Motor 7 1.3 Overview of Electric Motors 9 1.4 Goals and Structure 11 1.5 Summary 11 Chapter 2: Preliminary Concepts 13 2.1 Torque and Angular Speed 13 2.2 Magnets 18 2.3 Equivalent Circuit Element 21 2.4 Power and Efficiency 23 2.5 Summary 25 Part II: Exploring Electric Motors Chapter 3: DC Motors 27 3.1 DC Motor Fundamentals 28 3.2 Brushed Motors 34 3.3 Brushless Motors 42 3.4 Electronic Speed Control (ESC) Systems 49 3.5 Batteries 51 3.6 Summary 53 Chapter 4: Stepper Motors 55 4.1 Permanent Magnet (PM) Steppers 56 4.2 Variable Reluctance (VR) Steppers 59 4.3 Hybrid (HY) Steppers 61 4.4 Stepper Control 63 4.5 Summary 71 Chapter 5: Servomotorsl“¿