實用電路分析與實踐

《實用電路分析與實踐》是2017年電子工業出版社出版的圖書，圖書作者是王勤、戴麗華。

基本介紹

• 中文名：實用電路分析與實踐
• 作者：王勤、戴麗華
• 出版社：電子工業出版社
• 出版時間：2017年7月
• 頁數：288 頁
• 開本：16 開
• ISBN：9787121316418

內容簡介

本書根據教育部最新的高等職業教育教學改革精神，結合企業工程經驗，以培養技術套用型人才為目標編寫的。教材將實用電路分析與實踐按8個項目設計，分別為電路及基本元件測試、實際電阻電路分析與測試、家庭用電電路研究與設計（單相正弦交流電路等）、選頻電路的分析與設計（諧振電路等）、三相電力傳輸分析與設計、初識變壓器、照相機閃光燈電路分析與設計、方波信號認識與分析，共包含22個任務，55個子任務。其中理論知識點和實踐技能點分解在各項目任務中。同時，教材中編入相關電路的Multisim仿真環節，使真實實驗與仿真實驗結合，提高實驗效率，增強學生實驗的主觀能動性。本書在每個項目後都提供自測練習，供學生鞏固相應知識點，同時配備有完善的電子教學課件、自測題答案以及教學素材，免費供讀者使用，詳見前言。

目錄

項目 1 電路及基本元件測試 ·················································································1

任務 1—1 儀器儀表的認知與使用····································································1

1.1 認識電路·························································································8

1.1.1 電路的基本概念 ·······································································8

1.1.2 描述電路的常見物理量 ······························································9

【拓展知識 1】 測量的知識 ············································································ 12

任務 1—2 電阻元件特性測試········································································ 16

1.2 電阻元件······················································································· 19

1.2.1 電阻的基本概念 ····································································· 19

1.2.2 線性電阻與非線性電阻 ···························································· 20

1.2.3 電導····················································································· 21

1.3 歐姆定律······················································································· 22

【拓展知識 2】 電阻的標註知識 ······································································ 24

任務 1—3 電源元件特性測試········································································ 26

1.4 理想電源······················································································· 28

1.4.1 理想電壓源············································································ 28

1.4.2 理想電流源············································································ 32

1.5 實際電源······················································································· 35

1.5.1 實際電壓源············································································ 35

1.5.2 實際電流源············································································ 36

1.6 電壓源與電流源的等效互換······························································· 37

【拓展知識 3】 受控源的知識 ········································································· 39

任務 1—4 電容元件特性測試········································································ 40

1.7 電容元件······················································································· 43

1.7.1 電容的基本概念 ····································································· 43

1.7.2 電容元件的功率和儲能 ···························································· 46

1.7.3 電容的串/並聯········································································ 47

【拓展知識 4】 電容器的選取 ········································································· 49

任務 1—5 電感元件特性測試········································································ 51

1.8 電感元件······················································································· 52

1.8.1 電感的基本概念 ····································································· 52

1.8.2 電感的功率和儲能 ·································································· 55

1.8.3 電感的串/並聯········································································ 56

任務 1—6 基爾霍夫定律驗證測試·································································· 59

1.9 電路中的電位與電壓的關係······························································· 63

VI

1.10 基爾霍夫定律 ··············································································· 66

【拓展知識 5】 線圖理論與基爾霍夫定律公式的獨立性 ········································ 70

項目總結···································································································· 74

自測練習 1 ································································································· 77

項目 2 電路的等效變換與分析測試 ······································································ 80

任務 2—1 電阻等效變換的分析與測試···························································· 80

2.1 等效的概念···················································································· 82

2.2 電阻串/並聯··················································································· 82

2.3 電阻的混聯···················································································· 84

【拓展知識 6】 電阻串/並聯的套用—電錶的改裝 ············································· 86

任務 2—2 電源的等效變換探究與測試···························································· 88

2.4 電源的串/並聯················································································ 89

2.5 兩種實際電源模型的等效變換···························································· 91

【拓展知識 7】 受控源的介紹 ········································································· 92

任務 2—3 支路電流法套用··········································································· 93

【拓展知識 8】 網孔電流法··········································································· 96

任務 2—4 疊加定理的套用和驗證·································································· 97

任務 2—5 戴維南定理的套用和驗證······························································101

【拓展知識 9】 諾頓定理 ··············································································106

項目總結···································································································107

自測練習 2 ································································································109

項目 3 正弦穩態電路分析及實踐 ········································································ 111

任務 3—1 單相正弦交流電的了解和測量························································ 111

3.1 單相正弦交流電·············································································113

3.1.1 正弦交流電路中的物理量 ························································113

3.1.2 正弦信號的相量表示法 ···························································116

【拓展知識 10】 相量形式的基爾霍夫定律························································121

任務 3—2 單相正弦交流穩態電路的相量法分析···············································122

3.2 交流元件的相量模型·······································································125

3.2 阻抗與導納···················································································127

【拓展知識 11】 RLC 並聯電路、三表法測電路元件參數的理論····························131

任務 3—3 正弦交流電路中的功率·································································133

【拓展知識 12】 家用照明電路的工作原理························································139

任務 3—4 家庭照明電路操作技能·································································141

3.4 家庭照明電路操作技能····································································146

3.4.1 導線的連線與絕緣的恢復 ························································146

3.4.2 室內電路配線方法 ·································································149

3.4.3 常用照明附屬檔案及安裝 ······························································150

VII

【拓展知識 13】 電工安全用電知識·································································154

項目總結···································································································155

自測練習 3 ································································································157

項目 4 串/並聯諧振電路分析及實踐 ····································································160

任務 4—1 輸入迴路分析與設計（串聯諧振電路）············································160

4.1 RLC 串聯諧振電路 ·········································································163

4.1.1 RLC 串聯諧振電路的定義和特點···············································163

4.1.2 串聯諧振的功率 ····································································166

4.1.3 串聯諧振電路的頻率特性 ························································168

【拓展知識 14】 通頻帶的測量方法·································································170

任務 4—2 放大選頻迴路電路分析與設計（並聯諧振電路）································171

4.2 RLC 並聯諧振電路 ·········································································172

4.2.1 RLC 並聯諧振電路的定義和特點···············································172

4.2.2 並聯諧振的功率 ····································································176

4.2.3 並聯諧振電路的頻率特性 ························································177

【拓展知識 15】 小信號調諧放大器·································································178

項目總結···································································································179

自測練習 4 ································································································180

項目 5 三相電路分析及實踐 ··············································································183

任務 5—1 對稱三相電路的認識與測量···························································183

5.1 對稱三相電源················································································187

5.1.1 對稱三相電源的定義 ······························································187

5.1.2 對稱三相電源的連線 ······························································188

5.2 對稱三相負載的連線·······································································189

5.3 對稱三相電路的功率測量和相序的判定···············································192

【拓展知識 16】 電氣知識—三相四線制和三相五線制······································196

任務 5—2 不對稱三相電路的認識與測量························································198

5.4 不對稱三相電路·············································································201

【拓展知識 17】 零線和地線··········································································205

項目總結···································································································206

自測練習 5 ································································································207

項目 6 動態電路的分析及實踐 ···········································································210

任務 6—1 RC 充放電電路的認識與分析·························································210

6.1 動態電路與換路定則·······································································214

6.2 一階電路的三要素分析法·································································215

【拓展知識 18】 電子閃光燈··········································································218

任務 6—2 RC 積分、微分電路的仿真與分析···················································219

VIII

6.3 積分電路······················································································221

6.4 微分電路······················································································221

【拓展知識 19】 RC 耦合電路········································································223

項目總結···································································································224

自測練習 6 ································································································225

項目 7 非正弦周期電流電路的分析與測試 ····························································228

任務 7—1 非正弦周期信號的分析與測試························································228

7.1 非正弦周期信號的產生和表示方法·····················································235

7.2 非正弦周期量的有效值、平均值和平均功率·········································236

任務 7—2 非正弦周期電流電路的分析與測試··················································238

7.3 非正弦周期電流電路的分析······························································239

【拓展知識 20】 諧波電壓、電流條件下有功功率的計算······································240

項目總結···································································································241

自測練習 7 ································································································241

項目 8 變壓器的認知與使用 ··············································································244

任務 8—1 互感線圈的了解與檢測·································································244

8.1 互感與互感電壓·············································································248

8.2 線圈的同名端及判定·······································································250

8.3 耦合線圈的串聯·············································································252

【拓展知識 21】 耦合線圈的並聯····································································252

任務 8—2 變壓器的認知與測試 ··································································253

8.4 初識變壓器···················································································256

8.5 理想變壓器···················································································258

【拓展知識 22】 其他變壓器及變壓器常見的故障及檢修方法································260

項目總結···································································································265

自測練習 8 ································································································266

項目自測題答案································································································269