電路基礎(chǔ)（英文版·第6版）

Contents

Preface iv

About the Authors xi

PART 1 DC Circuits 2

Chapter 1 Basic Concepts 3

1.1 Introduction 4

1.2 Systems of Units 5

1.3 Charge and Current 6

1.4 Voltage 9

1.5 Power and Energy 10

1.6 Circuit Elements 14

1.7 Applications 16

1.7.1 TV Picture Tube

1.7.2 Electricity Bills

1.8 Problem Solving 19

1.9 Summary 22

Review Questions 23

Problems 24

Comprehensive Problems 26

Chapter 2 Basic Laws 29

2.1 Introduction 30

2.2 Ohm’s Law 30

2.3 Nodes, Branches, and Loops 35

2.4 Kirchhoff’s Laws 37

2.5 Series Resistors and Voltage Division 43

2.6 Parallel Resistors and Current Division 44

2.7 Wye-Delta Transformations 51

Delta to Wye Conversion

Wye to Delta Conversion

2.8 Applications 57

2.8.1 Lighting Systems

2.8.2 Design of DC Meters

2.9 Summary 63

Review Questions 64

Problems 65

Comprehensive Problems 77

Chapter 3 Methods of Analysis 79

3.1 Introduction 80

3.2 Nodal Analysis 80

3.3 Nodal Analysis with Voltage Sources 86

3.4 Mesh Analysis 91

3.5 Mesh Analysis with Current Sources 96

3.6 Nodal and Mesh Analyses by Inspection 98

3.7 Nodal Versus Mesh Analysis 102

3.8 Circuit Analysis with PSpice 103

3.9 Applications: DC Transistor Circuits 105

3.10 Summary 110

Review Questions 111

Problems 112

Comprehensive Problem 124

Chapter 4 Circuit Theorems 125

4.1 Introduction 126

4.2 Linearity Property 126

4.3 Superposition 128

4.4 Source Transformation 133

4.5 Thevenin’s Theorem 137

4.6 Norton’s Theorem 143

4.7 Derivations of Thevenin’s and Norton’s Theorems 147

4.8 Maximum Power Transfer 148

4.9 Verifying Circuit Theorems with PSpice 150

4.10 Applications 153

4.10.1 Source Modeling

4.10.2 Resistance Measurement

4.11 Summary 158

Review Questions 159

Problems 160

Comprehensive Problems 171

Chapter 5 Operational Amplifiers 173

5.1 Introduction 174

5.2 Operational Amplifiers 174

5.3 Ideal Op Amp 178

5.4 Inverting Amplifier 179

5.5 Noninverting Amplifier 181

5.6 Summing Amplifier 183

5.7 Difference Amplifier 185

5.8 Cascaded Op Amp Circuits 189

5.9 Op Amp Circuit Analysis with PSpice 192

5.10 Applications 194

5.10.1 Digital-to-Analog Converter

5.10.2 Instrumentation Amplifiers

5.11 Summary 197

Review Questions 199

Problems 200

Comprehensive Problems 211

Chapter 6 Capacitors and Inductors 213

6.1 Introduction 214

6.2 Capacitors 214

6.3 Series and Parallel Capacitors 220

6.4 Inductors 224

6.5 Series and Parallel Inductors 228

6.6 Applications 231

6.6.1 Integrator

6.6.2 Differentiator

6.6.3 Analog Computer

6.7 Summary 238

Review Questions 239

Problems 240

Comprehensive Problems 249

Chapter 7 First-Order Circuits251

7.1 Introduction 252

7.2 The Source-Free RC Circuit 253

7.3 The Source-Free RL Circuit 257

7.4 Singularity Functions 263

7.5 Step Response of an RC Circuit 271

7.6 Step Response of an RL Circuit 278

7.7 First-Order Op Amp Circuits 282

7.8 Transient Analysis with PSpice 287

7.9 Applications 291

7.9.1 Delay Circuits

7.9.2 Photoflash Unit

7.9.3 Relay Circuits

7.9.4 Automobile Ignition Circuit

7.10 Summary 297

Review Questions 298

Problems 299

Comprehensive Problems 309

Chapter 8 Second-Order Circuits311

8.1 Introduction 312

8.2 Finding Initial and Final Values 313

8.3 The Source-Free Series RLC Circuit 317

8.4 The Source-Free Parallel RLC Circuit 324

8.5 Step Response of a Series RLC Circuit 329

8.6 Step Response of a Parallel RLC Circuit 334

8.7 General Second-Order Circuits 337

8.8 Second-Order Op Amp Circuits 342

8.9 PSpice Analysis of RLC Circuits 344

8.10 Duality 3488.11 Applications 351

8.11.1 Automobile Ignition System

8.11.2 Smoothing Circuits

8.12 Summary 354

Review Questions 355

Problems 356

Comprehensive Problems 365

PART 2 AC Circuits366

Chapter 9 Sinusoids and Phasors 367

9.1 Introduction 368

9.2 Sinusoids 369

9.3 Phasors 374

9.4 Phasor Relationships for Circuit Elements 383

9.5 Impedance and Admittance 385

9.6 Kirchhoff’s Laws in the Frequency Domain 387
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