实例介绍
【实例简介】
Electrical Circuit Theory and Technology
In Memory of Elizabeth Electrical Circuit Theory and Technology Revised second edition John Bird, BSc(Hons ), CEng, MIEE, FIEIE, CMath, FIMA. FCollP Newnes OXFORD AMSTERDAM BOSTON LONDON NEW YORK PARIS SAN DIEGO SAN FRANCISCO SINGAPORE SYDNEY TOKYO Newnes An imprint of elsevier science Linacre house Jordan hill. oxford oX2 8DP 200 Wheeler rd. Burlington. MA 01803 First published 1997 Second edition 2001 Rep 2002 Revised second edition 2003 Copyright C 1997, 2001, John Bird. All rights The right of john bird to be identified as the author of this worl has been asserted in accordance with the Copyright, Designs and Patents Act 1988 No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England WIP 4LP. Applications for the copyright holders written permission to reproduce any part of this publication should be addressed to the publisher British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library ISBN0750657847 For information on all Newnes publications visit our website at www.newnespress.com Typeset by Laser Words, Madras, India Printed and bound in great britain Contents Preface Part 1 Basic electrical engineering principles 1 Units associated with SI units basic electrical Charge 4 quantities 4 1.4 Work Power 6 Electrical potential and e m f 6 1.7 Resistance and conductance 6 1.8 Electrical power and energy Summary of terms, units and their symbols 1.10 Further problems on units associated with basic electrical quantities 2 An introduction to 1 Standard symbols for electrical components electric circuits 2.2 Electric current and quantity of electricit 2. 3 Potential difference and resistance 13 2. 4 Basic electrical measuring instruments Linear and non-linear devices 13 Oh 14 Multiples and sub-multiples 14 2. 8 Conductors and insulators 2.9 Electrical power and energy 16 2.10 Main effects of electric current 20 uses 20 2.12 Further problems on the introduction to electric circuits 21 3 Resistance variation Resistance and resistivity 23 3.2 Temperature coefficient of resistance 26 3.3 Further problems on resistance variation 29 4 Chemical effects of 4.1 Introduction 31 electricity 4.2 Electrolysis 31 4.3 Electroplating 4.4 The simple cell 32 orrosion 33 4.6 E. m.f. and internal resistance of a cell 34 4.7 Primary cells 36 vi Contents 4.8 Secondary cells 37 4.9 Cell capacity 39 4.10 Further problems on the chemical effects of electricity 39 Assignment 1 5 Series and parallel 5.1 Series circuits 42 networks Potential divider 44 5.3 5.4 Current division 48 Wiring lamps in series and in parallel 5.6 Further problems on series and parallel networks 6 Capacitors and 6.1 Electrostatic field capacitance 6.2 Electric field strength 57 6.3 Capacitance 57 6.4 Capacitors 57 Electric fux density 5 6.6 Permittivity 9 6.7 he parallel plate capacitor 61 6.8 Capacitors connected in parallel and series 6.9 Dielectric strength 67 6.10 Energy stored 68 6. 11 Practical types of capacitor 69 6. 12 Discharging capacitors 70 6. 13 Further problems on capacitors and capacitance 70 7 Magnetic circuits 7.1 Magnetic fields 74 Magnetic flux and flux density 7.3 Magnetomotive force and magnetic field strength 76 7.4 Permeability and B-h curves 77 7 Reluctance 80 7.6 Composite series magnetic circuits 81 7.7 Comparison between electrical and magnetic quantities 84 7.8 d haste 7.9 Further problems on magnetic circuits Assignment 8 Electromagnetism 8.1 Magnetic field due to an electric current 89 8.2 Ele 9 8.3 Force on a current 92 8.4 Principle of operation of a simple d.c. motor 96 Principle of operation of a moving coil instrument 97 8.6 orce on a 8 8.7 Further problems on electromagnetism 98 Contents vii 9 Electromagnetic 9.1 Introduction to electromagnetic induction induction 9.2 Laws of electromagnetic induction 101 9.3 Inductance 104 9.4 Inductors 106 9.5 Energy stored 107 9.6 Inductance of a coil 107 9.7 Mutual inductance 108 9.8 Further problems on electromagnetic induction 109 10 Electrical measuring 10.1 Introduction instruments and 10.2 Analogue instruments measurements 10.3 Moving-iron instrument 113 10.4 The moving-coil rectifier instrument 114 10.5 Comparison of moving-coil, moving-iron and moving-coil rectifier instruments 114 10.6 Shunts and multipliers 115 10.7 Electronic instruments 10. 8 The ohmmeter 10.9 Multimeters 118 10.10 Wattmeters 10.11 Instrument 'loading?effect 10.12 The cathode 121 10.13 Waveform harmonics 124 10.14 Logarithmic ratios 126 10.15 129 10.16 Wheatstone bridge 129 0.17 D.c. potentiometer 130 10.18 A.c. brid 10.19 Measurement errors 131 10.20 Further problems on electrical measuring instruments and measurements 133 11 Semiconductor 11.1 Types of materials 137 diode 11.2 Silicon con and germanium 138 11.3 n-type and p-type materials 138 11. 4 The p-n junction 139 Forward and reverse bias 40 11.6 Semiconductor diodes 140 11.7 Rectification 143 11.8 Further problems on semiconductor diodes 143 12 Transistors 12.1 The bipolar junction transistor 145 12.2 Transistor action 147 12.3 Transistor symbols 149 12 4 Transistor connections 149 12.5 Transistor characteristics 150 12.6 The transistor as an amplifier 152 12.7 The load line 154 12.8 Current and voltage gains 155 Ⅴ lii Contents 12.9 Thermal runaway 158 12.10 Further problems on transistors 159 Assignment 3 162 Main formulae for Part 1 164 Part 2 Electrical principles and technology 13 D. c. circuit theory 13.1 Introduction 167 13.2 Kirchhoff's laws 167 13.3 The superposition theorem 171 13.4 General d. c circuit theory 174 13.5 Thevenin's theorem 176 13.6 Constant-current source 181 13.7 Norton’sth 13.8 Thevenin and Norton equivalent networks 184 13.9 Maximum power transfer theorem 187 13.10 Further problems on d.c. circuit theory 189 14 Alternating voltages 14.1 Introduction 193 and currents 14.2 The a.c. generator 193 14.3 Wavefc 194 144 A.c. values 195 14.5 The equation of a sinusoidal waveform 200 14.6 Combination of waveforms 204 14.7 Rectification 208 14.8 Further problems on alternating voltages and currents 209 Assignment 4 15 Single-phase series 15.1 Purely resistive a.c. circuit a.c. circuits 15.2 Purely inductive a.c. circuit 214 5.3 Purely capacitive a.c. circuit 214 15. 4R- series a.c. circuit 215 15.5 R-C series a c circuit 220 15.6 R-L-C series a c circuit 221 15.7 Series resonance 225 15.8 Q-factor 227 15.9 Bandwidth and selectivity 229 15.10 Power in a c circuits 230 15.11 Power triangl gle and power factor 232 15.12 Further problems on single-phase series a.c. circuits 234 16 Single-phase parallel 161Introduction 238 a.c. circuits 16.2 R-L parallel a.c. circuit 238 16.3 R-C parallel a.c. circuit 240 Contents ix 16.4 L-C parallel a.c. circuit 241 16.5 LR-C parallel a.c. circuit 243 16.6 Parallel resonance and Q-factor 247 16.7 Power factor improvement 252 16.8 Further problems on single-phase parallel a.c. circuits 256 17 D.c. transients 17.1 Introduction 259 17.2 Charging a capacitor 260 17.3 Time constant for a C-R circuit 260 17.4 Transient curves for a c-R circuit 261 17.5 Discharging a cap 266 17.6 Current growth in an L-R circuit 268 17.7 Time constant for anL-r circuit 269 17. 8 Transient curves for anL-r circuit 269 17.9 Current decay in an L-R circuit 272 17.10 Switching inductive circuits 275 17.11 The effects of time constant on a rectangular waveform 275 17. 12 Further problems on d. c transients 276 18 Operational 18. 1 Introduction to operational amplifiers amplimers 18.2 Some op amp parameters 280 18.3 Op amp inverting amplifier 282 8.4 Op amp non-inverting amplifier 285 18.5 Op amp voltage-follower 286 18.6 Op amp summing amplifier 286 18.7 Op amp voltage comparator 288 18.8 Op amp integrator 288 18.9 Op amp differential amplific er 289 18.10 Digital to analogue (D/A)conversion 291 18.11 Analogue to digital (A/D) conversion 293 18 12 Further problems on operational amplifiers 294 Assignment 5 296 19 Three phase systems 19.1 Introduction 297 19.2 Three-phase supply 297 19.3 Star connection 298 19.4 Delta connection 302 19.5 Power in three-phase systems 303 19.6 Measurement of power in three-phase systems 306 19.7 Comparison of star and delta connections 19.8 Advantages of three-phase systems 19.9 Further problems on three-phase systems 20 Transformers 20.1 Introduction 315 20.2 Transformer principle of operation 316 20.3 Transformer no-load phasor diagram 319 20.4 E.m.f. equation of a transformer 320 【实例截图】
【核心代码】
Electrical Circuit Theory and Technology
In Memory of Elizabeth Electrical Circuit Theory and Technology Revised second edition John Bird, BSc(Hons ), CEng, MIEE, FIEIE, CMath, FIMA. FCollP Newnes OXFORD AMSTERDAM BOSTON LONDON NEW YORK PARIS SAN DIEGO SAN FRANCISCO SINGAPORE SYDNEY TOKYO Newnes An imprint of elsevier science Linacre house Jordan hill. oxford oX2 8DP 200 Wheeler rd. Burlington. MA 01803 First published 1997 Second edition 2001 Rep 2002 Revised second edition 2003 Copyright C 1997, 2001, John Bird. All rights The right of john bird to be identified as the author of this worl has been asserted in accordance with the Copyright, Designs and Patents Act 1988 No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England WIP 4LP. Applications for the copyright holders written permission to reproduce any part of this publication should be addressed to the publisher British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library ISBN0750657847 For information on all Newnes publications visit our website at www.newnespress.com Typeset by Laser Words, Madras, India Printed and bound in great britain Contents Preface Part 1 Basic electrical engineering principles 1 Units associated with SI units basic electrical Charge 4 quantities 4 1.4 Work Power 6 Electrical potential and e m f 6 1.7 Resistance and conductance 6 1.8 Electrical power and energy Summary of terms, units and their symbols 1.10 Further problems on units associated with basic electrical quantities 2 An introduction to 1 Standard symbols for electrical components electric circuits 2.2 Electric current and quantity of electricit 2. 3 Potential difference and resistance 13 2. 4 Basic electrical measuring instruments Linear and non-linear devices 13 Oh 14 Multiples and sub-multiples 14 2. 8 Conductors and insulators 2.9 Electrical power and energy 16 2.10 Main effects of electric current 20 uses 20 2.12 Further problems on the introduction to electric circuits 21 3 Resistance variation Resistance and resistivity 23 3.2 Temperature coefficient of resistance 26 3.3 Further problems on resistance variation 29 4 Chemical effects of 4.1 Introduction 31 electricity 4.2 Electrolysis 31 4.3 Electroplating 4.4 The simple cell 32 orrosion 33 4.6 E. m.f. and internal resistance of a cell 34 4.7 Primary cells 36 vi Contents 4.8 Secondary cells 37 4.9 Cell capacity 39 4.10 Further problems on the chemical effects of electricity 39 Assignment 1 5 Series and parallel 5.1 Series circuits 42 networks Potential divider 44 5.3 5.4 Current division 48 Wiring lamps in series and in parallel 5.6 Further problems on series and parallel networks 6 Capacitors and 6.1 Electrostatic field capacitance 6.2 Electric field strength 57 6.3 Capacitance 57 6.4 Capacitors 57 Electric fux density 5 6.6 Permittivity 9 6.7 he parallel plate capacitor 61 6.8 Capacitors connected in parallel and series 6.9 Dielectric strength 67 6.10 Energy stored 68 6. 11 Practical types of capacitor 69 6. 12 Discharging capacitors 70 6. 13 Further problems on capacitors and capacitance 70 7 Magnetic circuits 7.1 Magnetic fields 74 Magnetic flux and flux density 7.3 Magnetomotive force and magnetic field strength 76 7.4 Permeability and B-h curves 77 7 Reluctance 80 7.6 Composite series magnetic circuits 81 7.7 Comparison between electrical and magnetic quantities 84 7.8 d haste 7.9 Further problems on magnetic circuits Assignment 8 Electromagnetism 8.1 Magnetic field due to an electric current 89 8.2 Ele 9 8.3 Force on a current 92 8.4 Principle of operation of a simple d.c. motor 96 Principle of operation of a moving coil instrument 97 8.6 orce on a 8 8.7 Further problems on electromagnetism 98 Contents vii 9 Electromagnetic 9.1 Introduction to electromagnetic induction induction 9.2 Laws of electromagnetic induction 101 9.3 Inductance 104 9.4 Inductors 106 9.5 Energy stored 107 9.6 Inductance of a coil 107 9.7 Mutual inductance 108 9.8 Further problems on electromagnetic induction 109 10 Electrical measuring 10.1 Introduction instruments and 10.2 Analogue instruments measurements 10.3 Moving-iron instrument 113 10.4 The moving-coil rectifier instrument 114 10.5 Comparison of moving-coil, moving-iron and moving-coil rectifier instruments 114 10.6 Shunts and multipliers 115 10.7 Electronic instruments 10. 8 The ohmmeter 10.9 Multimeters 118 10.10 Wattmeters 10.11 Instrument 'loading?effect 10.12 The cathode 121 10.13 Waveform harmonics 124 10.14 Logarithmic ratios 126 10.15 129 10.16 Wheatstone bridge 129 0.17 D.c. potentiometer 130 10.18 A.c. brid 10.19 Measurement errors 131 10.20 Further problems on electrical measuring instruments and measurements 133 11 Semiconductor 11.1 Types of materials 137 diode 11.2 Silicon con and germanium 138 11.3 n-type and p-type materials 138 11. 4 The p-n junction 139 Forward and reverse bias 40 11.6 Semiconductor diodes 140 11.7 Rectification 143 11.8 Further problems on semiconductor diodes 143 12 Transistors 12.1 The bipolar junction transistor 145 12.2 Transistor action 147 12.3 Transistor symbols 149 12 4 Transistor connections 149 12.5 Transistor characteristics 150 12.6 The transistor as an amplifier 152 12.7 The load line 154 12.8 Current and voltage gains 155 Ⅴ lii Contents 12.9 Thermal runaway 158 12.10 Further problems on transistors 159 Assignment 3 162 Main formulae for Part 1 164 Part 2 Electrical principles and technology 13 D. c. circuit theory 13.1 Introduction 167 13.2 Kirchhoff's laws 167 13.3 The superposition theorem 171 13.4 General d. c circuit theory 174 13.5 Thevenin's theorem 176 13.6 Constant-current source 181 13.7 Norton’sth 13.8 Thevenin and Norton equivalent networks 184 13.9 Maximum power transfer theorem 187 13.10 Further problems on d.c. circuit theory 189 14 Alternating voltages 14.1 Introduction 193 and currents 14.2 The a.c. generator 193 14.3 Wavefc 194 144 A.c. values 195 14.5 The equation of a sinusoidal waveform 200 14.6 Combination of waveforms 204 14.7 Rectification 208 14.8 Further problems on alternating voltages and currents 209 Assignment 4 15 Single-phase series 15.1 Purely resistive a.c. circuit a.c. circuits 15.2 Purely inductive a.c. circuit 214 5.3 Purely capacitive a.c. circuit 214 15. 4R- series a.c. circuit 215 15.5 R-C series a c circuit 220 15.6 R-L-C series a c circuit 221 15.7 Series resonance 225 15.8 Q-factor 227 15.9 Bandwidth and selectivity 229 15.10 Power in a c circuits 230 15.11 Power triangl gle and power factor 232 15.12 Further problems on single-phase series a.c. circuits 234 16 Single-phase parallel 161Introduction 238 a.c. circuits 16.2 R-L parallel a.c. circuit 238 16.3 R-C parallel a.c. circuit 240 Contents ix 16.4 L-C parallel a.c. circuit 241 16.5 LR-C parallel a.c. circuit 243 16.6 Parallel resonance and Q-factor 247 16.7 Power factor improvement 252 16.8 Further problems on single-phase parallel a.c. circuits 256 17 D.c. transients 17.1 Introduction 259 17.2 Charging a capacitor 260 17.3 Time constant for a C-R circuit 260 17.4 Transient curves for a c-R circuit 261 17.5 Discharging a cap 266 17.6 Current growth in an L-R circuit 268 17.7 Time constant for anL-r circuit 269 17. 8 Transient curves for anL-r circuit 269 17.9 Current decay in an L-R circuit 272 17.10 Switching inductive circuits 275 17.11 The effects of time constant on a rectangular waveform 275 17. 12 Further problems on d. c transients 276 18 Operational 18. 1 Introduction to operational amplifiers amplimers 18.2 Some op amp parameters 280 18.3 Op amp inverting amplifier 282 8.4 Op amp non-inverting amplifier 285 18.5 Op amp voltage-follower 286 18.6 Op amp summing amplifier 286 18.7 Op amp voltage comparator 288 18.8 Op amp integrator 288 18.9 Op amp differential amplific er 289 18.10 Digital to analogue (D/A)conversion 291 18.11 Analogue to digital (A/D) conversion 293 18 12 Further problems on operational amplifiers 294 Assignment 5 296 19 Three phase systems 19.1 Introduction 297 19.2 Three-phase supply 297 19.3 Star connection 298 19.4 Delta connection 302 19.5 Power in three-phase systems 303 19.6 Measurement of power in three-phase systems 306 19.7 Comparison of star and delta connections 19.8 Advantages of three-phase systems 19.9 Further problems on three-phase systems 20 Transformers 20.1 Introduction 315 20.2 Transformer principle of operation 316 20.3 Transformer no-load phasor diagram 319 20.4 E.m.f. equation of a transformer 320 【实例截图】
【核心代码】
标签：
好例子网口号：伸出你的我的手 — 分享！
小贴士
感谢您为本站写下的评论，您的评论对其它用户来说具有重要的参考价值，所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字，对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙，所以请不要反馈意义不大的重复字符，也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明，或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦，又没人会搭理，于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享，对搜索内容的合法性不具有预见性、识别性、控制性，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论平台是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定，若资源存在侵权或相关问题请联系本站客服人员，点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论