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电工电子技术基础

作译者：李丽琼,侯鹏飞,常志文

出版时间：2026-09 千字数：409 版次：01-01 页数：260

开本：16开装帧： I S B N ：9787121535840

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纸质书定价：￥49.8

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项目1 电路分析基础 ·······················································································.1
任务1.1 认识电路的组成 ·············································································.1
1.1.1 认识简单实际电路及元器件 ····························································.1
1.1.2 电路及电路模型 ···········································································.2
1.1.3 电路的常见基本元器件 ··································································.3
任务1.2 电路的基本物理量 ··········································································.4
1.2.1 电流 ··························································································.4
1.2.2 电位 ··························································································.5
1.2.3 电压 ··························································································.5
1.2.4 电动势 ·······················································································.6
1.2.5 电能和电功率 ··············································································.7
任务1.3 分析简单电路 ················································································.8
1.3.1 电路的几种状态 ···········································································.8
1.3.2 欧姆定律 ···················································································.10
1.3.3 电压源、电流源及其等效变换 ························································.12
任务1.4 分析复杂电路 ···············································································.14
1.4.1 支路、节点、回路和网孔 ······························································.14
1.4.2 基尔霍夫定律 ·············································································.15
1.4.3 支路电流法 ················································································.16
1.4.4 戴维南定理 ················································································.17
*任务1.5 相关知识扩展 ·············································································.19
技能训练一 常用电阻、电容、电感元件的检测和直流电路中电压、电流的测量 ······.19
项目小结 ··································································································.22
思考与练习 ·······························································································.24
项目2 正弦交流电路 ······················································································.26
任务2.1 认识正弦交流电 ············································································.26
2.1.1 正弦交流电基本概念 ····································································.26
2.1.2 正弦量三要素及正弦量有效值 ························································.27
任务2.2 正弦量的相量表示 ·········································································.28
2.2.1 复数及其表示方法 ·······································································.28
2.2.2 复数的运算 ················································································.29
2.2.3 正弦量的相量表示 ·······································································.30
任务2.3 分析单一参数元件（电阻、电感、电容）正弦交流电路 ·························.31
2.3.1 纯电阻正弦交流电路 ····································································.31
2.3.2 纯电感正弦交流电路 ····································································.32
2.3.3 纯电容正弦交流电路 ····································································.33
任务2.4 分析电阻、电感、电容混联的正弦电路 ··············································.34
2.4.1 RLC 串联电路 ·············································································.34
*2.4.2 复阻抗的串联和并联 ···································································.36
*任务2.5 相关知识扩展 ·············································································.36
技能训练二 RLC 串联交流电路和并联交流电路 ···············································.37
技能训练三 荧光灯电路及功率因数的提高 ······················································.39
项目小结 ··································································································.41
思考与练习 ·······························································································.42
项目3 三相交流电路 ······················································································.44
任务3.1 认识三相电源 ···············································································.44
3.1.1 三相交流电动势的产生 ·································································.45
3.1.2 三相电源的星形（Y）连接 ····························································.46
3.1.3 三相电源的三角形（△）连接 ························································.49
任务3.2 认识三相负载 ···············································································.49
3.2.1 负载的星形连接 ··········································································.51
3.2.2 负载的三角形连接 ·······································································.54
*任务3.3 相关知识扩展 ·············································································.55
技能训练四 三相对称负载电路和三相不对称负载电路 ·······································.55
技能训练五 三相电路功率的测量 ··································································.58
项目小结 ··································································································.60
思考与练习 ·······························································································.61
项目4 磁路与变压器 ······················································································.62
任务4.1 认识磁路 ·····················································································.62
4.1.1 磁路的基本物理量及性质 ······························································.62
4.1.2 磁路定律 ···················································································.66
*4.1.3 直流磁路 ··················································································.67
*4.1.4 交流磁路 ··················································································.68
任务4.2 认识变压器 ··················································································.70
4.2.1 变压器的用途与分类 ····································································.70
4.2.2 变压器的基本工作原理及单相变压器 ···············································.71
*任务4.3 相关知识扩展 ·············································································.74
技能训练六 测试单相铁芯变压器特性 ····························································.75
项目小结 ··································································································.77
思考与练习 ·······························································································.77
项目5 电动机及其控制 ···················································································.79
任务5.1 认识三相异步电动机 ······································································.79
5.1.1 常用电动机的类型 ·······································································.80
5.1.2 三相异步电动机的结构 ·································································.80
5.1.3 三相异步电动机的接线 ·································································.82
任务5.2 理解三相异步电动机的工作原理 ·······················································.83
5.2.1 三相异步电动机的转动原理 ···························································.84
5.2.2 三相异步电动机的机械特性 ···························································.86
5.2.3 三相异步电动机的铭牌数据 ···························································.88
任务5.3 控制三相异步电动机 ······································································.89
5.3.1 认识常用低压电器 ·······································································.90
5.3.2 三相异步电动机的启动控制 ···························································.97
5.3.3 三相异步电动机的调速控制 ·························································.102
5.3.4 三相异步电动机的制动控制 ·························································.104
*5.3.5 电气控制系统实例 ····································································.104
*任务5.4 相关知识扩展 ···········································································.110
技能训练七 三相异步电动机的正、反转控制电路 ···········································.110
项目小结 ································································································.114
思考与练习 ·····························································································.115
项目6 二极管及整流电路 ··············································································.117
任务6.1 认识半导体 ················································································.117
6.1.1 半导体的共价键结构 ··································································.118
6.1.2 本征半导体 ··············································································.118
任务6.2 认识PN 结与二极管 ·····································································.119
6.2.1 PN 结的形成 ·············································································.119
6.2.2 PN 结的单向导电性 ····································································.121
6.2.3 二极管的结构及基本特性 ····························································.122
任务6.3 整流电路 ···················································································.125
6.3.1 单相半波整流电路 ·····································································.125
6.3.2 单相桥式整流电路 ·····································································.126
*任务6.4 相关知识扩展 ···········································································.127
项目小结 ································································································.128
思考与练习 ·····························································································.128
项目7 三极管及基本放大电路 ········································································.132
任务7.1 认识三极管 ················································································.132
7.1.1 三极管的结构与分类 ··································································.132
7.1.2 三极管的工作原理 ·····································································.134
7.1.3 三极管的参数和检测 ··································································.138
任务7.2 分析基本放大电路及其应用 ···························································.140
7.2.1 单管共射基本放大电路 ·······························································.140
7.2.2 分压式偏置电路 ········································································.147
7.2.3 共集电极放大电路 ·····································································.150
7.2.4 共基极放大电路 ········································································.154
7.2.5 放大电路三种基本接法的特点及用途 ·············································.155
任务7.3 认识电路中的反馈 ·······································································.156
7.3.1 反馈的概念 ··············································································.156
7.3.2 反馈的类型 ··············································································.157
7.3.3 负反馈的作用 ···········································································.158
任务7.4 认识功率放大电路 ·······································································.159
7.4.1 概述 ·······················································································.160
7.4.2 乙类双电源互补对称功率放大电路 ················································.161
7.4.3 其他常见功率放大电路 ·······························································.162
*任务7.5 相关知识扩展 ···········································································.164
技能训练八 三极管好坏、引脚的判别及其典型应用电路 ··································.165
项目小结 ································································································.173
思考与练习 ·····························································································.174
项目8 集成运算放大器 ·················································································.179
任务8.1 认识集成运算放大器 ····································································.179
8.1.1 认识集成运算放大器 ··································································.179
8.1.2 集成运算放大器电路的组成及作用 ················································.180
8.1.3 集成运算放大器的应用条件 ·························································.182
任务8.2 分析基本运算放大电路 ·································································.183
8.2.1 理想集成运算放大器的应用 ·························································.183
8.2.2 理想集成运算放大器的非线性应用 ················································.186
8.2.3 使用集成运算放大器时应该注意的问题 ··········································.188
8.2.4 集成运算放大器应用举例 ····························································.190
*任务8.3 相关知识扩展 ···········································································.192
技能训练九 集成运算放大器的基本应用 ·······················································.192
项目小结 ································································································.197
思考与练习 ·····························································································.197
项目9 组合逻辑电路 ····················································································.199
任务9.1 认识基本门电路 ··········································································.199
9.1.1 数字电路概述 ···········································································.199
9.1.2 基本逻辑门电路结构及功能 ·························································.200
9.1.3 复合逻辑门电路结构及功能 ·························································.202
任务9.2 逻辑运算及逻辑电路的化简 ···························································.204
9.2.1 数制与码制 ··············································································.205
9.2.2 逻辑函数的表示方法 ··································································.206
9.2.3 基本逻辑运算规则和定律 ····························································.208
9.2.4 逻辑电路的化简 ········································································.208
任务9.3 分析和设计组合逻辑电路 ······························································.209
9.3.1 组合逻辑电路分析 ·····································································.209
9.3.2 组合逻辑电路设计 ·····································································.210
任务9.4 认识编码器、译码器、加法器 ························································.211
9.4.1 编码器结构及功能 ·····································································.211
9.4.2 译码器结构及功能 ·····································································.213
9.4.3 加法器结构及功能 ·····································································.216
*任务9.5 相关知识扩展 ···········································································.217
技能训练十 组合逻辑电路的设计与测试 ·······················································.217
项目小结 ································································································.219
思考与练习 ·····························································································.220
项目10 触发器和时序逻辑电路 ······································································.222
任务10.1 认识触发器 ··············································································.222
10.1.1 基本RS 触发器的组成及其工作原理 ·············································.222
10.1.2 可控RS 触发器的组成及功能 ······················································.224
任务10.2 常见JK、D、T 触发器 ································································.227
10.2.1 JK 触发器 ···············································································.227
10.2.2 T 触发器 ················································································.229
10.2.3 D 触发器 ················································································.229
任务10.3 认识计数器 ··············································································.230
10.3.1 时序逻辑电路 ··········································································.230
10.3.2 计数器 ···················································································.231
*任务10.4 认识寄存器和存储器 ·································································.239
10.4.1 寄存器 ···················································································.240
10.4.2 存储器 ···················································································.242
*任务10.5 相关知识扩展 ··········································································.246
项目小结 ································································································.246
思考与练习 ·····························································································.247
附录A 三极管的型号及命名方法 ·····································································.249
参考文献 ·····································································································.250

本书根据职业院校培养目标及其对课程和教学模式改革的要求，跟踪当前电工电子技术
的新发展，按照加强实践性环节的需要编写而成。本书的编写宗旨是通俗易懂、实用好用，
指导初学者快速入门、步步提高、逐渐精通。本书理论与实践紧密结合，理论知识按“必需、
够用”的原则编排，突出基本技能训练，注重方法和思路、技能和操作，由具有丰富教学经
验和实践经验的教师编写，并经过系列教材编委会审定。
本书参考学时为 90 学时，主要内容包括：项目 1，电路分析基础；项目 2，正弦交流电
路；项目 3，三相交流电路；项目 4，磁路与变压器；项目 5，电动机及其控制；项目 6，二
极管及整流电路；项目 7，三极管及基本放大电路；项目 8，集成运算放大器；项目 9，组合
逻辑电路；项目 10，触发器和时序逻辑电路；附录A，三极管的型号及命名方法。各项目分
别介绍了电工电子技术的基本知识。为了巩固所学知识，本书深入讲解了基本知识的应用及
基本技能的培养。
本书具有以下几个特点。
（1）注重传统内容与新技术及其发展趋势的结合，紧随新技术的发展，适应社会对电工
电子基本知识及技能的需求。
（2）体现教学的适用性与合理性，注重学生对电工电子技术知识的了解、掌握以及技能
的培养。
（3）全书以基本知识和基本技能为重点，侧重于帮助学生掌握电工电子技术基本知识、
训练基本技能，能较好地体现“一体化”教学模式。
（4）各项目均有“相关知识扩展”部分，作为相关项目基础知识的应用，可根据学生掌
握基础知识的情况讲授。前面标“*”的内容可选学。
本书可作为高等职业院校非电类专业的教材，也可作为广大无线电爱好者和相关专业工
程技术人员的参考书。
参与编写本书的有昆明科技职业大学的李丽琼、侯鹏飞、常志文、杨易蒙、杨铁军、
孙柏果、王秋平、王琳、李培兴、付娟、朱乐勋、蒋正刚、李冬尼、李根祥、邹朝
欢，云南商务职业学院的戴伟副教授，云南云内动力机械制造有限公司的李静文高级工程师、
陈帅高级工程师。其中，项目1 由李丽琼、朱乐勋编写，项目2 由王琳、李根祥编写，项目
3 由杨铁军编写，项目4 由王秋平、李静文、陈帅编写，项目5 由李丽琼、杨易蒙、付娟编
写，项目6 由侯鹏飞、李培兴编写，项目7 和附录A 由戴伟、蒋正刚编写，项目8 由侯鹏飞、李冬尼编写，项目9 由孙柏果编写，项目10 由常志文、邹朝欢编写。全书由李丽琼、侯鹏飞、
常志文统稿，由云南电网有限责任公司红河供电局的张玉华高级工程师审稿。
本书配有免费的电子教学课件及习题答案，有需要的读者请登录华信教育资源网免费注
册后下载，如有问题，请在网站留言或与电子工业出版社联系（E-mail:hxedu@phei.com.cn）。
由于编者水平有限，经验不足，书中错误之处在所难免，恳请广大读者批评指正。
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