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Basic Electronics by Debashis De
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Basic Electronics by Debashis De


Basic Electronics has been written to serve as a textbook for core science and technology courses in engineering colleges and universities. This book is not only useful for students of science and technology, but also for readers from other fields aspiring to enhance their knowledge of electronics through self-study. The objective of the book is to develop the basic ability to understand electronics as a science that forms the core of engineering and technology in general. The basic prerequisite for those using this book is the alert mind. The required physics and mathematics has been developed throughout the book, and no prior knowledge of physical electronics has been assumed.


Chapter 1 builds the foundation of electronics with a detailed analysis of crystalline materials, classification of materials, intrinsic and extrinsic semiconductors, electrical conduction phenomenon, continuity equation and the Hall Effect. The book then proceeds to focus on the major categories of electronic devices—the diode, bipolar junction transistor and field-effect transistor—with two chapters devoted to each device.

Chapter 8 deals with special semiconductor devices like SCR, TRIAC, DIAC, UJT and IGBT with emphasis on the constructional features, physical operations and characteristics. Chapter 9 discusses the conceptual development of feedback in amplifiers through block diagrams, properties of positive and negative feedback, calculations of open-loop gain, closed-loop gain, feedback factors, topologies of feedback amplifier, the effect of feedback on gain, input impedance and output impedance, practical implementation of the feedback topologies, sensitivity, bandwidth stability and the effect of positive feedback.

Chapter 10 deals with the fundamentals of integrated-circuit fabrication, which provides an insight into the world of nanotechnology where this basic idea of fabrication is important with respect to semiconductor device engineering. Chapter 11 studies the properties of the ideal operational amplifier, its terminal properties and real-life applications. Chapter 12 is devoted to a detailed examination of the working principle of an oscillator, the various classifications of oscillators along with a detailed examination of Barkhausen criteria.

Chapter 13 provides a comprehensive overview of number systems, binary codes, logic gates and the applications of digital circuits. The final chapter of the book, Chapter 14, deals with the key instruments of electronic measurement with special emphasis on the most versatile instrument of electronic measurement, the cathode-ray oscilloscope.

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