亚历山大、Matthew N.O.Sadiku编著的《电路基础（英文版·第5版）》是一本电类各专业“电路”课程的经典教材，被美国众多名校采用，是美国最有影响力的“电路”课程教材之一。全书分为直流电路、交流电路与高级电路三部分，还囊括了学生需要掌握的所有常用数学公式和物理基本原理。每一个说明性的实例都附有练习题及答案来测试学生对内容的理解程度。每章的扩展实例表明如何使用六步法来求解每章练习题，使学生可以实践六步求解电路法。

亚历山大、Matthew N.O.Sadiku编著的《电路基础（英文版·第5版）》以电路基础知识、电路分析方法为主体，辅以典型例题和实际应用实例，并穿插介绍电子工程相关历史人物与知识，旨在改变以往枯燥的电路课程教学，引领新时代教材改革。

《电路基础（英文版·第5版）》内容全面，涵盖了我国“电路分析基础”课程的全部教学要求和“电路理论基础”课程的大部分要求，并在每章开始增加中文“导读”，适合用做“电路”课程双语授课或英文授课的教材。

《电路基础（英文版·第5版）》前4版获得了极大的成功，第5版以更清晰、更容易理解的方式阐述了电路的基础知识和电路分析方法，并反映了电路领域的最新技术进展。全书总共包括2447道例题和各类习题，并在书后给出了部分习题答案。

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 5

1.4 Voltage 9

1.5 Power and Energy 10

1.6 Circuit Elements 15

1.7?Applications 17

1.7.1 TV Picture Tube

1.7.2 Electricity Bills

1.8?Problem Solving 20

1.9 Summary 23

Review Questions 24

Problems 24

Comprehensive Problems 27

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 45

2.7?Wye-Delta Transformations 52 Delta to Wye Conversion Wye to Delta Conversion

2.8?Applications 58

2.8.1 Lighting Systems

2.8.2 Design of DC Meters

2.9 Summary 64 Review Questions 66 Problems 67 Comprehensive Problems 78

Chapter 3 Methods of Analysis 81

3.1 Introduction 82

3.2 Nodal Analysis 82

3.3 Nodal Analysis with Voltage Sources 88

3.4 Mesh Analysis 93

3.5 Mesh Analysis with Current Sources 98

3.6?Nodal and Mesh Analyses by Inspection 100

3.7 Nodal Versus Mesh Analysis 104

3.8 Circuit Analysis with PSpice 105

3.9?Applications: DC Transistor Circuits 107

3.10 Summary 112

Review Questions 113

Problems 114

Comprehensive Problem 126

Chapter 4 Circuit Theorems 127

4.1 Introduction 128

4.2 Linearity Property 128

4.3 Superposition 130

4.4 Source Transformation 135

4.5 Thevenin’s Theorem 139

4.6 Norton’s Theorem 145

4.7?Derivations of Thevenin’s and Norton’s Theorems 149

4.8 Maximum Power Transfer 150

4.9 Verifying Circuit Theorems with PSpice 152

4.10?Applications 155

4.10.1 Source Modeling

4.10.2 Resistance Measurement

4.11 Summary 160

Review Questions 161

Problems 162

Comprehensive Problems 173

Chapter 5 Operational Ampli?ers 175

5.1 Introduction 176

5.2 Operational Ampli?ers 176

5.3 Ideal Op Amp 179

5.4 Inverting Ampli?er 181

5.5 Noninverting Ampli?er 183

5.6 Summing Ampli?er 185

5.7 Difference Ampli?er 187

5.8 Cascaded Op Amp Circuits 191

5.9 Op Amp Circuit Analysis with PSpice 194

5.10?Applications 196

5.10.1 Digital-to-Analog Converter

5.10.2 Instrumentation Ampli?ers

5.11 Summary 199

Review Questions 201

Problems 202

Comprehensive Problems 213

Chapter 6 Capacitors and Inductors 215

6.1 Introduction 216

6.2 Capacitors 216

6.3 Series and Parallel Capacitors 222

6.4 Inductors 226

6.5 Series and Parallel Inductors 230

6.6?Applications 233

6.6.1 Integrator

6.6.2 Differentiator

6.6.3 Analog Computer

6.7 Summary 240

Review Questions 241

Problems 242

Comprehensive Problems 251

Chapter 7 First-Order Circuits 253

7.1 Introduction 254

7.2 The Source-Free RC Circuit 254

7.3 The Source-Free RL Circuit 259

7.4 Singularity Functions 265

7.5 Step Response of an RC Circuit 273

7.6 Step Response of an RL Circuit 280

7.7?First-Order Op Amp Circuits 284

7.8 Transient Analysis with PSpice 289

7.9?Applications 293

7.9.1 Delay Circuits

7.9.2 Photo?ash Unit

7.9.3 Relay Circuits

7.9.4 Automobile Ignition Circuit

7.10 Summary 299

Review Questions 300

Problems 301

Comprehensive Problems 311

Chapter 8 Second-Order Circuits 313

8.1 Introduction 314

8.2 Finding Initial and Final Values 314

8.3 The Source-Free Series RLC Circuit 319

8.4 The Source-Free Parallel RLC Circuit 326

8.5 Step Response of a Series RLC Circuit 331

8.6 Step Response of a Parallel RLC Circuit 336

8.7 General Second-Order Circuits 339

8.8 Second-Order Op Amp Circuits 344

8.9 PSpice Analysis of RLC Circuits 346

8.10?Duality 350

8.11?Applications 353

8.11.1 Automobile Ignition System

8.11.2 Smoothing Circuits

8.12 Summary 356

Review Questions 357

Problems 358

Comprehensive Problems 367

PART 2 AC Circuits 368

Chapter 9 Sinusoids and Phasors 369

9.1 Introduction 370

9.2 Sinusoids 371

9.3 Phasors 376

9.4 Phasor Relationships for Circuit Elements 385

9.5 Impedance and Admittance 387

9.6?Kirchhoff’s Laws in the Frequency Domain 389

9.7 Impedance Combinations 390

9.8?Applications 396

9.8.1 Phase-Shifters

9.8.2 AC Bridges

9.9 Summary 402

Review Questions 403

Problems 403

Comprehensive Problems 411

Chapter 10 Sinusoidal Steady-State Analysis 413

10.1 Introduction 414

10.2 Nodal Analysis 414

10.3 Mesh Analysis 417

10.4 Superposition Theorem 421

10.5 Source Transformation 424

10.6 Thevenin and Norton Equivalent Circuits 426

10.7 Op Amp AC Circuits 431

10.8 AC Analysis Using PSpice 433

10.9?Applications 437

10.9.1 Capacitance Multiplier

10.9.2 Oscillators

10.10 Summary 441

Review Questions 441

Problems 443

Chapter 11 AC Power Analysis 457

11.1 Introduction 458

11.2 Instantaneous and Average Power 458

11.3 Maximum Average Power Transfer 464

11.4 Effective or RMS Value 467

11.5 Apparent Power and Power Factor 470

11.6 Complex Power 473

11.7?Conservation of AC Power 477

11.8 Power Factor Correction 481

11.9?Applications 483

11.9.1 Power Measurement

11.9.2 Electricity Consumption Cost

11.10 Summary 488

Review Questions 490

Problems 490

Comprehensive Problems 500

Chapter 12 Three-Phase Circuits 503

12.1 Introduction 504

12.2 Balanced Three-Phase Voltages 505

12.3 Balanced Wye-Wye Connection 509

12.4 Balanced Wye-Delta Connection 512

12.5 Balanced Delta-Delta Connection 514

12.6 Balanced Delta-Wye Connection 516

12.7 Power in a Balanced System 519

12.8?Unbalanced Three-Phase Systems 525

12.9 PSpice for Three-Phase Circuits 529

12.10?Applications 534

12.10.1 Three-Phase Power Measurement

12.10.2 Residential Wiring

12.11 Summary 543

Review Questions 543

Problems 544

Comprehensive Problems 553

Chapter 13 Magnetically Coupled Circuits 555

13.1 Introduction 556

13.2 Mutual Inductance 556

13.3 Energy in a Coupled Circuit 564

13.4 Linear Transformers 567

13.5 Ideal Transformers 573

13.6 Ideal Autotransformers 581

13.7?Three-Phase Transformers 584

13.8 PSpice Analysis of Magnetically Coupled Circuits 586

13.9?Applications 591

13.9.1 Transformer as an Isolation Device

13.9.2 Transformer as a Matching Device

13.9.3 Power Distribution

13.10 Summary 597

Review Questions 598

Problems 599

Comprehensive Problems 611

Chapter 14 Frequency Response 613

14.1 Introduction 614

14.2 Transfer Function 614

14.3?The Decibel Scale 617

14.4 Bode Plots 619

14.5 Series Resonance 629

14.6 Parallel Resonance 634

14.7 Passive Filters 637

14.7.1 Lowpass Filter

14.7.2 Highpass Filter

14.7.3 Bandpass Filter

14.7.4 Bandstop Filter

14.8 Active Filters 642

14.8.1 First-Order Lowpass Filter

14.8.2 First-Order Highpass Filter

14.8.3 Bandpass Filter

14.8.4 Bandreject （or Notch） Filter

14.9 Scaling 648

14.9.1 Magnitude Scaling

14.9.2 Frequency Scaling

14.9.3 Magnitude and Frequency Scaling

14.10 Frequency Response Using PSpice 652

14.11 Computation Using MATLAB 655

14.12?Applications 657

14.12.1 Radio Receiver

14.12.2 Touch-Tone Telephone

14.12.3 Crossover Network

14.13 Summary 663

Review Questions 664

Problems 665

Comprehensive Problems 673

PART 3 Advanced Circuit Analysis 674

Chapter 15 Introduction to the LaplaceTransform 675

15.1 Introduction 676

15.2 De?nition of the Laplace Transform 677

15.3 Properties of the Laplace Transform 679

15.4 The Inverse Laplace Transform 690

15.4.1 Simple Poles

15.4.2 Repeated Poles

15.4.3 Complex Poles

15.5 The Convolution Integral 697

15.6?Application to Integrodifferential Equations 705

15.7 Summary 708

Review Questions 708

Problems 709

Chapter 16 Applications of the Laplace Transform 715

16.1 Introduction 716

16.2 Circuit Element Models 716

16.3 Circuit Analysis 722

16.4 Transfer Functions 726

16.5 State Variables 730

16.6?Applications 737

16.6.1 Network Stability

16.6.2 Network Synthesis

16.7 Summary 745

Review Questions 746

Problems 747

Comprehensive Problems 758

Chapter 17 The Fourier Series 759

17.1 Introduction 760

17.2 Trigonometric Fourier Series 760

17.3 Symmetry Considerations 768

17.3.1 Even Symmetry

17.3.2 Odd Symmetry

17.3.3 Half-Wave Symmetry

17.4 Circuit Applications 778

17.5 Average Power and RMS Values 782

17.6 Exponential Fourier Series 785

17.7 Fourier Analysis with PSpice 791

17.7.1 Discrete Fourier Transform

17.7.2 Fast Fourier Transform

17.8?Applications 797

17.8.1 Spectrum Analyzers

17.8.2 Filters

17.9 Summary 800

Review Questions 802

Problems 802

Comprehensive Problems 811

Chapter 18 Fourier Transform 813

18.1 Introduction 814

18.2 De?nition of the Fourier Transform 814

18.3 Properties of the Fourier Transform 820

18.4 Circuit Applications 833

18.5 Parseval’s Theorem 836

18.6 Comparing the Fourier and Laplace Transforms 839

18.7?Applications 840

18.7.1 Amplitude Modulation

18.7.2 Sampling

18.8 Summary 843

Review Questions 844

Problems 845

Comprehensive Problems 851

Chapter 19 Two-Port Networks 853

19.1 Introduction 854

19.2 Impedance Parameters 854

19.3 Admittance Parameters 859

19.4 Hybrid Parameters 862

19.5 Transmission Parameters 867

19.6?Relationships Between Parameters 872

19.7 Interconnection of Networks 875

19.8 Computing Two-Port Parameters Using PSpice 881

19.9?Applications 884

19.9.1 Transistor Circuits

19.9.2 Ladder Network Synthesis

19.10 Summary 893

Review Questions 894

Problems 894

Comprehensive Problem 905

Appendix A Simultaneous Equations and Matrix

Inversion A

Appendix B Complex Numbers A-9

Appendix C Mathematical Formulas A-16

Appendix D Answers to Odd-Numbered

Problems A-21