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Full Description
Electronics has undergone important and rapid developments over the last 60 years, which have generated a large range of theoretical and practical notions.
This book presents a comprehensive treatise of the evolution of electronics for the reader to grasp both fundamental concepts and the associated practical applications through examples and exercises.
This first volume of the Fundamentals of Electronics series comprises four chapters devoted to elementary devices, i.e. diodes, bipolar junction transistors and related devices, field effect transistors and amplifiers, their electrical models and the basic functions they can achieve.
Volumes to come will deal with systems in the continuous time regime, the various aspects of sampling signals and systems using analog (A) and digital (D) treatments, quantized level systems, as well as DA and AD converter principles and realizations.
Contents
Preface ix
Introduction xiii
Chapter 1 Diodes and Applications 1
1.1 Semiconductor physics and current transport in pn diodes 1
1.1.1 Energy and concentration of mobile charge carriers (electrons and holes) 1
1.1.2 Conduction mechanisms 6
1.2 Simplified models of the pn diode 9
1.3 Diode circuitry (reviewed in exercises) 9
1.4 Detailed model of pn diode: variable conditions and effect of temperature 10
1.4.1 Junction at equilibrium (at zero voltage or in open circuit): diffusion potential 10
1.4.2 Biased junction (or out of equilibrium): effect of an external potential difference 13
1.4.3 Effects of temperature 17
1.4.4 Capacitive effects 19
1.5 Different types of diode and their functions 23
1.5.1 Zener diode 23
1.5.2 Schottky diode or metal-semiconductor diode 23
1.5.3 Light emitting diodes and laser diodes 25
1.5.4 Photodiodes and photovoltaic generators 25
1.6 Exercises 27
1.6.1 Analyze the operation of the following circuits for a sinusoidal voltage generator and ideal diodes (a) with no threshold and (b) with a threshold U0 27
1.6.2 Study of the current variations in a forward biased pn diode under influence of temperatures 30
1.6.3 Analog switch 32
1.6.4 Ring modulator 35
1.6.5 Switching diode: study on opening 37
Chapter 2 Bipolar Junction Transistors and Applications 41
2.1 The transistor effect 41
2.2 Bipolar junction transistor (or BJT) models and types 44
2.2.1 Ebers-Moll model 44
2.2.2 The heterojunction bipolar transistor (or HBT) and transistors based on III-V semiconductors 48
2.3 Bipolar junction transistor in static regimes and applications of the exponential characteristic IC (VBE) 49
2.3.1 Equivalent circuits for the three operating regimes 49
2.3.2 Nonlinear applications: differential pairs and multiplier 50
2.3.3 Circuits for transistor bias: current sources and current mirrors 53
2.3.4 Voltage limitations 55
2.4 Small-signal dynamic circuits (linear approximation) 56
2.4.1 Basic circuits 56
2.4.2 Small-signal high-frequency equivalent circuit 62
2.5 Power amplification: classes of amplification 63
2.6 Bipolar transistor switching on resistive loads 65
2.7 Components based on the pnpn structure 67
2.7.1 pnpn diode (or Shockley diode) 67
2.7.2 Controlled rectifier or thyristor 70
2.7.3 Diacs and triacs 71
2.8 Phototransistors and optically controlled components 73
2.9 Exercises 74
2.9.1 Class A amplification 74
2.9.2 4 Quadrant multiplier 78
2.9.3 Amplifiers with rest current zero or low relative to nominal current 84
2.9.4 Cascode circuit and frequency responses of transistor amplifiers 89
Chapter 3 Field Effect Transistors and Applications 95
3.1 Operating principle of junction field effect transistors (JFET and MESFET types) 95
3.2 Metal oxide semiconductor field effect transistors 100
3.3 Types of field effect transistors and equivalent circuits 104
3.3.1 JFETs, MESFETs and MOSFETs 104
3.3.2 Other field effect transistors 106
3.4 Applications of field effect transistors 109
3.4.1 Source of current and JFET biasing 109
3.4.2 Amplifiers and mixers 110
3.4.3 Variable resistance controlled by the gate-source voltage and JFET analog switch 111
3.4.4 Switching circuits and CMOS elementary logic gates (with complementary MOSFET) 112
3.4.5 Combinatorial logic functions 114
3.4.6 Sequential logic functions 126
3.5 Exercises 135
3.5.1 Parabolic approximation of the JFET characteristic ID(VGS) in pinched-off (or saturated) regime 135
3.5.2 JFET analog switch; input-output insulation in off-state 138
3.5.3 MOSFET circuits 141
Chapter 4 Amplifiers, Comparators and Other Analog Circuits 149
4.1 Operational amplifiers, operating principle and types 149
4.1.1 Standard operational amplifiers 149
4.1.2 Operational amplifiers with specific properties 151
4.2 Operational amplifier models and responses 153
4.2.1 Static model of voltage amplifier 153
4.2.2 Dynamic and switched mode operations 155
4.3 Comparators 156
4.4 Noise in amplifiers 157
4.4.1 Noise nature and evaluation 157
4.4.2 Various types of noise and their origin 158
4.4.3 Equivalent circuit of noise sources in amplifiers and noise figure 160
4.4.4 Low-noise amplifiers 162
4.5 Analog integrated circuits 162
4.6 Exercises 163
4.6.1 Responses of operational amplifier differential stage 163
4.6.2 Generation of triangle and square wave signals: voltage to frequency conversion 168
4.6.3 Noise figure of an operational amplifier circuit 172
Appendix 175
Bibligraphy 187
Index 189
