Fundamentals of Electric Circuits 电路基础PDF电子书下载

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Chapter 1 Basic Concepts and Laws 1

1.1 Introduction 1

1.2 An actual electrical circuit and its electric circuit model 1

1.3 Current and voltage’ s reference directions and power 3

1.4 Circuit elements： resistor， independent and dependent sources 6

1.5 Kirchhoff’ s Laws 14

Problems 18

Chapter 2 Simple Resistive Circuits 25

2.1 Introduction 25

2.2 Circuits with series-parallel combinations of resistors 25

2.3 Resistors’ network with bridge 32

2.4 Source transformation 38

2.5 Methods of analysis 43

Problems 60

Chapter 3 Circuit Theorems 73

3.1 Superposition theorem and homogeneity theorem 73

3.2 Substitution theorem 78

3.3 Thevenin’ s and Norton’s Theorems 82

3.4 Tellegen’ s Theorem 91

3.5 Reciprocity theorem 93

Problems 98

Chapter 4 First-Order Circuits 106

4.1 Introduction 106

4.2 Capacitors 107

4.3 Inductors 110

4.4 Equations and initial conditions of dynamic circuits 114

4.5 Zero input response of first-order circuits 118

4.6 Zero state response of first-order circuits 124

4.7 Complete response of first-order circuits 127

Problems 129

Chapter 5 Sinusoidal Steady-State Analysis 137

5.1 Sinusoids 137

5.2 Phasors 142

5.3 Circuit phasor relationships 148

5.4 Impedance and admittance 155

5.5 Sinusoidal steady-state analysis 159

5.6 Sinusoidal steady-state power calculation 165

Problems 176

Chapter 6 Resonance and Mutual Inductance 187

6.1 Introduction 187

6.2 Series resonance 188

6.3 Parallel resonance 192

6.4 Voltage current relation of coupled inductors 195

6.5 Calculation of coupled inductors circuits 200

6.6 Air-core transformer and ideal transformer 205

Problems 214

Chapter 7 Three-Phase Circuits 221

7.1 Basic knowledge of three-phase circuits 221

7.2 Balanced three-phase circuits 226

7.3 Unbalanced three-phase circuits 234

7.4 Power in three-phase circuits 239

Problems 243

Answers to Selected Problems 249

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