Electronic Systems and Techniques

The book may be divided into four parts. Chapters 1-4 provide an introduction to the basic principles of electricity. Chapters 5-18 cover the variety of electronic systems in block diagram (or building block) format starting with the single stage amplifier right across to computer systems. Here the essential knowledge of the relationship between the various blocks or units is established. Chapters 20-36 look inside the "building blocks" that make up a system enquiring into their constituent parts and operation. The characteristics of components and of the variety of circuitry used in electronics are explained with special attention to modern digital techniques. Chapters 37 and 38 deal with instruments, testing, and fault finding. Analogue as well as digital and microprocessor test devices are included. In fault diagnosis, the author has employed the functional approach where the state (cut-off or saturation; OFF or ON) of the unit-under-test is examined as the first step to identifying the faulty component. Although the treatment adopted is non-mathematical, the systems and circuits are explained in depth to give the reader a sound understanding in electronics. Wherever possible the author has indicated typical values of components that may be found in practice. The book deals, to one extent or another, with the various aspects of modern electronics. It adequately covers the syllabus of Part I and Part II (core subjects and analogue electronics) of the City and Guilds 224 course (Electronic Servicing). It is suitable for BTEC students at levels I, II and III taking electronic engineering. It is also useful to practising engineers who would like to back their practical background with theoretical knowledge. The emphasis on digital electronics is intentional for it is in this field that recent advances have occurred and future developments lay. In this second edition the author has included two sets of eighty multiple choice questions. The first set (chapter 19. Useful Exercises I), covers the topics in chapters 1 to 18. The second set (chapter 39, Useful Exercises II) covers topics in chapters 20 to 38. He has also included new topics that have become necessary knowledge for basic electronic servicing such as analogue and digital converters, digital television receivers, timers and microprocessor test instruments, logic technology and control systems.

Table of Contents:
Preface. 1. Direct current. 2. Alternating current. 3. Waveforms. 4. Capacitive and inductive networks. 5. Amplifiers and oscillators. 6. Resonance. 7. Transformers. 8. Matching. 9. Wave shaping. 10. Power supplies I. 11. Digital gates and systems. 12. Microcomputers and other systems. 13. Communications. 14. Amplitude modulation. 15. Frequency modulation. 16. Pulse modulation. 17. Cathode ray oscilloscope. 18. Television. 19. Useful exercise I. 20. The semiconductor diode. 21. Transistors. 22. The common emitter amplifier. 23. The common emitter amplifier - a.c. operation. 24. The common base and common collector amplifier. 25. Photoelectric devices. 26. Field effect transistors. 27. More solid state devices. 28. R-C filters, clippers and clampers. 29. Power supplies II. 30. Amplifiers I. 31. Amplifiers II. 32. Multivibrators. 33. Oscillators. 34. Logic circuits. 35. Digital display. 36. Microprocessor applications. 37. Measuring instruments. 38. Logical fault finding. 39. Useful excercises II. A1. Resistor. A2. Capacitor. A3. List of SI units. A4. Coomponents and symbols. Appendix I. Notes on calculations. Appendix II. The decibel. Appendix III. Answers to useful exercises. Index