本書以電路基礎知識、電路分析方法為主體，輔以典型例題和實際應用實例，并穿插介紹電子工程相關歷史人物與知識，旨在改變以往枯燥的電路課程教學，引領新時代教材改革。本書不僅包含詳細的例題和習題，還包含PSpice軟件仿真內容以及應用實例，旨在幫助學生掌握相關概念和方法的應用。這些特色使本書成為一本明白易懂、內容豐富、條理清晰、富有趣味的教科書。本書不僅可供電類各專業(yè)的學生作為教科書使用，還適于自學者使用，以及供有關技術人員、高校教師參考。
本書是美國乃至國際上非常有影響力的電路教材之一，經過五次版本更新，經成為眾多學生和老師心目中的經典教材。以電路基礎知識、電路分析方法為主體，輔以典型例題，并穿插介紹電子工程相關歷史人物與知識，旨在改變以往枯燥的電路課程教學，引*新時代教材改革。
Charles K. Alexander 分別于1967年和1971年獲得俄亥俄大學的電氣工程學碩士學位和博士學位，目前為美國克利夫蘭州立大學Fenn工學院電氣與計算機工程系教授以及電子學與航空航天技術研究中心（CREATE）的主任。他是IEEE的會士，曾任IEEE主席和CEO。他于1984年獲得IEEE百年紀念獎章，還先后榮獲英國工程委員會頒發(fā)的杰出工程教育成就獎和杰出工程教育領導獎。
Matthew N. O. Sadiku 博士，美國Prairie View A＆M大學教授，兼任IEEE Transacfions on Education雜志副主編。他曾在朗訊、波音等公司從事研發(fā)工作，發(fā)表過百余篇學術論文，出版過20余部著作。
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
9.
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