Hickman EUR. ING / Hickman Electronics

2. Auflage 2013
ISBN: 978-1-4831-0528-4
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 155 Seiten, Web PDF

Electronics, Second Edition deals with the behavior, properties, and control of electrons. The book discusses the basis of electronics technology-the electron, electric current, conductors, semi-conductors, insulators, current flow, and the relationship between the electromotive force (e.m.f.) and current. It also explains amplitude, frequency, wavelength, phase, harmonics, modulation, and ultrasonic waves. The book describes the main components of a simple amplifier, the frequencies it can handle (20 Hz to 20 kHz, or higher depending on what it is connected to its output), or if it can drive a loudspeaker (no, but it is suitable for high-impedance headphones). It explains how signals are generated such as sine waves, square waves, pulses, sawtooth; modifying another signal can also generate a particular waveform. It also discusses the principles of radio and television, radar, microwave, the distinguishing feature of a digital circuit, as well as the operation of a remote control TV. The book is suitable for radio technicians, engineers, apprentices, hobbyists, and students of electrical engineering or electronics.

Autoren/Hrsg.

Hickman EUR. ING, BSc Hons

Hickman, Ian

Inhaltsverzeichnis

1;Front Cover;1
2; Electronics;4
3;Copyright Page;5
4;Table of Contents;6
5;Chapter 1. Introduction;8
5.1;What is meant by 'electronics'?;8
5.2;What is an electron?;9
5.3;What is an electric current?;10
5.4;What is the difference between conductors and insulators?;11
5.5;What is a semiconductor?;12
5.6;Do currents flow only in metals and semiconductors?;12
5.7;What causes a current to flow?;12
5.8;How are e.m.f. and current related?;13
5.9;What is the effect of combining resistances?;14
5.10;What is internal resistance?;14
5.11;What is the meaning of 'matching'?;15
6;Chapter 2. Waveforms, pulses, and signals;17
6.1;What is the difference between d.c. and a.c.?;17
6.2;What is the advantage of using a.c.?;17
6.3;What is amplitude?;19
6.4;What is frequency?;19
6.5;What is wavelength?;20
6.6;What is phase?;21
6.7;Are there other types of current?;22
6.8;Are pulses that simple?;22
6.9;What other waveforms are there?;24
6.10;What are harmonics?;25
6.11;What is a signal?;25
6.12;What is meant by 'noise'?;25
6.13;What is modulation?;26
6.14;How do electromagnetic and sound waves compare ?;27
6.15;What are ultrasonic waves?;28
6.16;What is a transducer?;28
7;Chapter 3.Components;30
7.1;What is a resistor?;30
7.2;What is an inductor?;30
7.3;What is mutual inductance?;33
7.4;How does a capacitor work?;33
7.5;What is the unit of capacitance?;34
7.6;What is meant by 'time constant'?;37
7.7;What is the effect of combining inductance and capacitance?;38
7.8;What are passive components?;40
7.9;What is a semiconductor diode?;41
7.10;How is a diode used for rectification?;43
7.11;What are 'active components'?;45
7.12;Are active components linear or non-linear?;45
7.13;How does a transistor function?;45
7.14;Is thai how all transistors work?;48
7.15;What is a photo-electric cell?;53
7.16;Are valves still used?;54
8;Chapter 4. Amplification;56
8.1;What are the main features of an amplifier?;56
8.2;What frequencies can an amplifier such as that in Fig.38 handle?;58
8.3;Will an amplifier like that shown in Fig. 38 drive a loudspeaker?;58
8.4;Can you have a class B stage without crossover distortion?;60
8.5;What kinds of distortion are encountered?;61
8.6;What is meant by 'bandwidth'?;62
8.7;Why is decoupling necessary?;63
8.8;What is meant by 'feedback', and how is it used?;64
8.9;What is an emitter follower?;65
8.10;What is the cascode circuit?;66
9;Chapter 5. Generating signals;69
9.1;What sort of signals can be generated?;69
9.2;What is a crystal oscillator?;71
9.3;Do all sinewave oscillators use tuned circuits?;72
9.4;How is a squarewave produced?;73
9.5;What effect has a 'time constant'?;74
9.6;How is a spike waveform produced?;74
9.7;How is a triangular waveform produced?;75
9.8;What other types of pulse circuit are there?;76
10;Chapter 6. Radio and television;81
10.1;What is the principle of radio?;81
10.2;What modulation processes are used?;87
10.3;What are the merits of FM?;88
10.4;How are radio signals demodulated?;89
10.5;What is the principle of television?;91
10.6;How does the camera work?;92
10.7;How is synchronisation achieved?;94
10.8;How is the sound transmitted?;94
10.9;What are the main sections of a TV receiver?;95
10.10;How does remote-control TV work?;97
10.11;What are the main features of a cathode-ray tube?;97
10.12;How does colour television work?;98
10.13;How can two colour signals be modulated on to the same subcarrier?;99
10.14;How is a colour picture displayed?;100
11;Chapter 7. Digital techniques;103
11.1;What is the distinguishing feature of a digital circuit?;103
11.2;What are some simple digital circuits?;104
11.3;How are digital circuits connected together to do something useful?;106
11.4;How does binary arithmetic work?;107
11.5;How does a calculator work?;110
11.6;How does a computer work?;111
11.7;How is information stored?;112
11.8;How does the computer communicate with the outside world?;113
11.9;How can a computer monitor physical quantities such temperature and pressure?;114
11.10;Do computers come in a range of sizes?;115
11.11;How are computers programmed?;115
12;Chapter 8. Electronic test and measurement equipment;117
12.1;What are typical items of electronic testgear?;117
12.2;Are digital techniques used in test equipment?;118
12.3;What is a 'bridge'?;119
12.4;What are oscilloscopes used for?;120
12.5;What is ATE?;121
13;Chapter 9. Electronics in music and entertainment;122
13.1;When did electronics become important in music and entertainment?;122
13.2;What is hi-fi?;123
13.3;What is Stereo?;124
13.4;How does stereo work?;124
13.5;What is 'Quad'?;125
13.6;How does a record player work?;126
13.7;How does taperecording work?;128
13.8;What is 'Dolby'?;131
13.9;What are digital recordings?;131
13.10;How do systems like Ceefax work?;133
13.11;How does an electronic organ work?;134
13.12;What is a synthesiser?;135
13.13;What other electronic techniques are used in music?;135
14;Chapter 10. Other uses of electronics;138
14.1;What is radar?;138
14.2;How is microwave energy produced?;139
14.3;What is special about the waveguide and the aerial?;141
14.4;How is radar information information displayed?;143
14.5;How is ultrasonic energy generated and used?;144
14.6;How important are electronic techniques in medicine?;145
14.7;Are radio techniques used in medicine?;147
14.8;What other developments have there been?;147
14.9;What is opto-electronics?;148
14.10;Are there more opto-electronic devices?;149
14.11;How does the laser work?;150
14.12;Where is opto-electronics used?;151
15;Index;154