电路原理【2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载】

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1-1 Electrical Components and Measuring Instruments2

Contents5

1　Components,Quantities,and Units5

1-2 Electrical and Magnetic Units6

1-3 Scientific Notation8

1-4 Engineering Notation and Metric Prefixes12

1-5 Metric Unit Conversions15

2　Voltage,Current,and Resistance22

2-1 Atomic Structure24

2-2 Electrical Charge27

2-3 Voltage29

2-4 Current33

2-5 Resistance35

2-6 The Electric Circuit44

2-7 Basic Circuit Measurements51

2-8 Electrical Safety59

Technology Theory into Practice62

3 Ohm's Law78

3-1 Ohm's Law80

3-2 Calculating Current82

3-3 Calculating Voltage85

3-4 Calculating Resistance88

3-5 The Relationship of Current,Voltage,and Resistance89

3-6　Introduction to Troubleshooting92

Technology Theory into Practice95

4　Energy and Power106

4-1 Energy and Power　108

4-2 Power in an Electric Circuit110

4-3 Resistor Power Ratings112

4-4 Energy Conversion and Voltage Drop in Resistance116

4-5 Power Supplies117

Technology Theory into Practice120

5 Series Circuits128

5-1 Resistors in Series130

5-2 Current in a Series Circuit132

5-3 Total Series Resistance134

5-4 Ohm's Law in Series Circuits138

5-5 Voltage Sources in Series142

5-6 Kirchhoff's Voltage Law145

5-7 Voltage Dividers149

5-8 Power in a Series Circuit156

5-9 Circuit Ground158

5-10 Troubleshooting162

Technology Theory into Practice　167

6 Parallel Circuits184

6-1 Resistors in Parallel186

6-2 Voltage in Parallel Circuits189

6-3 Kirchhoff's Current Law191

6-4 Total Parallel Resistance195

6-5 Ohm's Law in Parallel Circuits201

6-6 Current Sources in Parallel205

6-7 Current Dividers206

6-8 Power in Parallel Circuits210

6-9 Examples of Parallel Circuit Applications212

6-10 Troubleshooting217

Technology Theory into Practice222

7 Series-Parallel Circuits238

7-1 Identifying Series-Parallel Relationships240

7-2 Analysis of Series-Parallel Circuits246

7-3 Voltage Dividers with Resistive Loads253

7-4 Loading Effect of a Voltmeter258

7-5 Ladder Networks261

7-6 The Wheatstone Bridge266

7-7 Troubleshooting271

Technology Theory into Practice275

8 Circuit Theorems and Conversions294

8-1 The Voltage Source296

8-2 The Current Source298

8-3 Source Conversions300

8-4 The Superposition Theorem303

8-5 Thevenin's Theorem310

8-6 Norton's Theorem319

8-7 Maximum Power Transfer Theorem323

8-8 Delta-to-Wye(△-to-Y)and Wye-to-Delta(Y-to-△) Conversions325

Technology Theory into Practice331

9 Branch,Mesh,and Node Analysis346

9-1 Branch Current Method348

9-2 Determinants351

9-3 Solving Simultaneous Equations Using a Calculator357

9-4 Mesh Current Method359

9-5 Node Voltage Method364

Technology Theory into Practice367

10 Magnetism and Electromagnetism378

10-1 The Magnetic Field380

10-2 Electromagnetism384

10-3 Electromagnetic Devices390

10-4 Magnetic Hysteresis395

10-5 Electromagnetic Induction397

10-6 Applications of Electromagnetic Induction401

Technology Theory into Practice405

11 Introduction to Alternating Current and Voltage414

11-1 The Sine Wave416

11-2 Sinusoidal Voltage Sources421

11-3 Voltage and Current Values of Sine Waves424

11-4 Angular Measurement of a Sine Wave428

11-5 The Sine Wave Formula432

11-6 Ohm's Law and Kirchhoff's Laws in AC Circuits434

11-7 Superimposed DC and AC Voltages437

11-8 Nonsinusoidal Waveforms439

11-9 The Oscilloscope446

Technology Theory into Practice453

12 Phasors and Complex Numbers468

12-1 Introduction to Phasors470

17-2 The Complex Number System475

12-3 Rectangular and Polar Forms479

12-4 Mathematical Operations486

Technology Theory into Practice491

13 Capacitors498

13-1　The Basic Capacitor500

13-2 Types of Capacitors507

13-3 Series Capacitors513

13-4 Parallel Capacitors518

13-5 Capacitors in DC Circuits520

13-6 Capacitors in AC Circuits529

13-7 Capacitor Applications535

13-8 Testing Capacitors540

Technology Theory into Practice542

14 Inductors556

14-1 The Basic Inductor558

14-2 Types of Inductors564

14-3 Series Inductors565

14-4 Parallel Inductors566

14-5 Inductors in DC Circuits568

14-6 Inductors in AC Circuits577

14-7 Inductor Applications583

14-8 Testing Inductors584

Technology Theory into Practice585

15 Transformers598

15-1 Mutual Inductance600

15-2 The Basic Transformer601

15-3 Step-Up Transformers605

15-4 Step-Down Transformers606

15-5 Loading the Secondary Winding607

15-6 Reflected Load609

15-7 Matching the Load and Source Resistances611

15-8 The Transformer as an Isolation Device614

15-9 Practical Transformers616

15-10 Other Types of Transformers619

15-11 Troubleshooting624

Technology Theory into Practice626

16 RC Circuits638

Part 1:Series Reactive Circuits640

16-1 Sinusoidal Response of RC Circuits640

16-2 Impedance and Phase Angle of Series RC Circuits641

16-3 Analysis of Series RC Circuits644

Part 2:Parallel Reactive Circuits651

16-4 Impedance and Phase Angle of Parallel RC Circuits651

16-5 Analysis of Parallel RC Circuits654

Part 3:Series-Parallel Reactive Circuits660

16-6 Analysis of Series-Parallel RC Circuits660

16-7 Power in RC Circuits666

Part 4:Special Topics666

16-8 Basic Applications670

16-9 Troubleshooting681

Technology Theory into Practice687

17 RL Circuits706

Part 1:Series Reactive Circuits708

17-1 Sinusoidal Response of RL Circuits708

17-2 Inpedance and Phase Angle of Series RL Circuits709

17-3 Analysis of Series RL Circuits711

Part 2:Parallel Reactive Circuits716

17-4 Impedance and Phase Angle of Parallel RL Circuits716

17-5 Analysis of Parallel RL Circuits719

Part 3:Series-Parallel Reactive Circuits723

17-6 Analysis of Series-Parallel RL Circuits723

17-7 Power in RL Circuits727

Part 4:Special Topics727

17-8 Basic Applications730

17-9 Troubleshooting738

Technology Theory into Practice743

18　RLC Circuits and Resonance758

Part 1:Series Reactive Circuits760

18-1 Impedance of Series RLC Circuits760

18-2 Analysis of Series RLC Circuits762

18-3 Series Resonance766

Part 2:Parallel Reactive Circuits773

18-4 Impedance of Parallel RLC Circuits773

18-5 Analysis of Parallel RLC Circuits775

18-6 Parallel Resonance778

18-7 Analysis of Series-Parallel RLC Circuits782

Part 3:Series-Parallel Reactive Circuits782

Part 4:Special Topics790

18-8 Bandwidth of Resonant Circuits790

18-9 Applications794

Technology Theory into Practice798

19 Basic Filters812

19-1 Low-Pass Filters814

19-2 High-Pass Filters821

19-3 Band-Pass Filters826

19-4 Band-Stop Filters830

Technology Theory into Practice834

20 Circuit Theorems in AC Analysis846

20-1 The Superposition Theorem848

20-2 Thevenin's Theorem853

20-3 Norton's Theorem863

20-4 Maximum Power Transfer Theorem867

Technology Theory into Practice871

21 Pulse Response of Reactive Circuits882

21-1 The RC Integrator884

21-2 Single-Pulse Response of RC Integrators885

21-3 Repetitive-Pulse Response of RC Integrators890

21-4 Single-Pulse Response of RC Differentiators895

21-5 Repetitive-Pulse Response of RC Differentiators900

21-6 Pulse Response of RL Integrators903

21-7 Pulse Response of RL Differentiators908

21-8 Relationship of Time(Pulse)Response to Frequency Response911

21-9 Troubleshooting914

Technology Theory into Practice917

22 Polyphase Systems in Power Applications928

22-1 Basic Polyphase Machines930

22-2 Polyphase Generators in Power Applications932

22-3 Three-Phase Generators938

22-4 Three-Phase Source/Load Analysis943

22-5 Three-Phase Power950

APPENDICES959

A Table of Standard Resistor Values959

B Batteries960

C Derivations963

D Capacitor Color Coding966

Answers to Odd-Numbered Problems970

Glossary982

Index989