本书所选内容涉及面广，包括电路、模拟电子技术、数字电子技术、电机学、自动控制、电气测量技术、电器设备、电力电子技术、电力系统等方面的知识。每一部分内容的选取都突出了相关技术最基础的知识，便于学生更好地学习和掌握，也有助于学生基本的专业词汇，提高学生阅读和翻译英语科技文献的能力。

本书分为14个单元。主要内容包括电路、模拟电子技术、数字电子技术、电机学、自动控制、电气测量技术、电器设备、电力电子技术、电力系统等。书中内容是按每个单元用2学时授课的计划安排的，每个单元后都配有主要的词汇注释、要点注释和练习等内容，书后还给出了全部练习的参考答案。

本书既可作为电气工程及其自动化、工业电气自动化、自动控制、机电一体化等相关专业的专业英语教材，也可作为从事电子信息、自动化等相关专业工程技术人员的参考用书。

1 Basic Concepts of Electric Circuits

1.1 Introduction

1.2 Charge and Current

1.3 Voltage

1.4 Power and Energy

1.5 Summary

2 Basic Laws of Electric Circuit

2.1 Introduction

2.2 Ohm's Law

2.3 Kirchhoff's Laws

2.4 Series Resistors and Voltage Division

2.5 Parallel Resistors and Current Division

2.6 Summary

3 Capacitors and Inductors

3.1 Introduction

3.2 Capacitors

3.3 Inductors

3.4 Sunuuary

4 Electronic System

4.1 Introduction

4.2 Electronic System Block Diagrams

4.3 Information Processing Versus Power Electronics

4.4 Analog Versus Digital Systems

4.5 Conversion of Signals from Analog to Digital Form

4.6 Relative Advantages of Analog and Digital Systems

5 Operational Amplifiers

5.1 Introduction

5.2 Operational Amplifiers

5.3 Ideal op-amp

5.4 Inverting Amplifier

5.5 Noninverting Amplifier

5.6 Summary

6 Digital Logic Circuits

6.1 Basic Concepts

 6.1.1 Logic Variables and Digital Words

 6.1.2 The AND Gate

 6.1.3 The Logic Inverter

 6.1.4 The OR Gate

 6.1.5 Boolean Algebra

 6.1.6 NAND, NOR, and XOR Gates

 6.1.7 Logical Sufficiency of NAND Gates and of NOR Gates

6.2 Electrical Specifications for Logic Gates

 6.2.1 Logic Ranges

 6.2.2 Positive Versus Negative Logic

 6.2.3 Input and Output Currents

7 Transformer

7.1 Introduction

7.2 Construction of Transformer

7.3 The Ideal Transformer

8 Electrical Machines

8.1 A Brief Overview

8.2 Induction Machines

 8.2.1 Introduction

 8.2.2 Induced Voltages

8.3 Synchronous Machines

 8.3.1 Introduction

 8.3.2 Construction of Synchronous Machines

8.4 Direct-Current Machines

 8.4.1 Introduction

 8.4.2 Armature Voltage

9 Automatic Control Systems

9.1 Introduction

9.2 Block Diagrams and Transfer Functions

 9.2.1 Block Diagrams

 9.2.2 Transfer Functions

9.3 Open-Loop Control

9.4 Closed-Loop Control: Feedback

9.5 Objectives of a Control System

10 Measurement

10.1 Introduction

10.2 Statistics

10.3 Operating Characteristics

 10.3.1 Measurement

 10.3.2 Operation

10.4 Static Characteristics

10.5 Velocity Measurement

 10.5.1 Sensing Methods

 10.5.2 DC Tachometers

 10.5.3 AC Tachometers

 10.5.4 Optical Tachometers

11 Switching Components

11.1 Introduction

11.2 Mechanical Switching Components

 11.2.1 Mechanical Switches

 11.2.2 Relays

 11.2.3 Time-Delay Relays

 11.2.4 Contactors and Motor Starters

11.3 Solid-State Components

 11.3.1 Diodes

 11.3.2 Transistors

 11.3.3 Silicon-Controlled Rectifiers

 11.3.4 Triacs

12 Power Semiconductor Switches

12.1 Introduction

12.2 Thyristors

12.3 Metal-Oxide-Semiconductor Field Effect Transistors

12.4 Gate Turn-Off Thyristors

12.5 Insulated Gate Bipolar Transistors

12.6 Desired Characteristics in Controllable Switches

13 Rectifiers and Inverters

13.1 Introduction

13.2 Basic Rectifier Concepts

 13.2.1 Pure Resistive Load

 13.2.2 Inductance Load

 13.2.3 Load with an Internal DC Voltage

13.3 Practical Thyristor Converters

13.4 Inverter Mode of Operation

14 Basic Knowledge of Power Systems

14.1 Introduction

14.2 Electrical Energy

14.3 Fossil-Fuel Plant

14.4 Nuclear Power Plant

14.5 Hydroelectric Power Plant

14.6 Other Energy Sources

14.7 Transmission and Distribution Systems

14.8 Faults

14.9 System Protection Components