Syllabus
Unit I
Semiconductor Characteristics and Applications Review: Intrinsic and extrinsic semiconductors, electrons and holes in intrinsic and extrinsic semiconductors, conduction by electrons and holes, conductivity of a semiconductor, Energy bands in semiconductors. Carrier concentrations in intrinsic and extrinsic semiconductors, Fermi level, donor and acceptor levels in extrinsic semiconductors. P-N junction diode depletion layer, conduction in PN junction diode, characteristics, diode resistance.Half wave and full wave rectifiers, power output and efficiency, Ripple factors.Breakdown in diodes Zener breakdown, Zener diode characteristics and application in voltage regulation.LEDs, photo diodes, LDRs and Solar cells.
Unit II
Transistors and Applications: Bipolar junction transistor (PNP and NPN) transistors, different configurations and characteristics, current components in CE configuration, large signal and small signal dc current gains, transistor biasing self bias circuit, Load line and operating point. Transistor as an amplifier : Transistor as a two port device, h-parameters and analysis of CE amplifier using h parameter equivalent circuit, simplified h-parameter circuit, stabilization of voltage gain in CE amplifiers, Two stage amplifiers, RC coupling, frequency response of CE amplifier. Comparison of transistor configurations.Emitter follower circuit and its use. Transistor as Power amplifier.FET construction and its characteristics MOSFET characteristics.Concept of feedback in amplifiers and advantages of negative feedback
Unit III
Basic Principlesof sinusoidal oscillators, Statement and explanation of Barkhausen criterion for sustained oscillations, RC phase shift Oscillator, explanation of: tank circuit and Development of oscillations in an LC circuit, Hartley Oscillator, Colpitts Oscillator, Wien Bridge Oscillator, Piezoelectric effect, Piezoelectric Oscillator.
Unit IV
Digital Electronics: Binary to decimal and decimal to binary conversion, Binary addition and subtraction, Octal number system, Hexadecimal system and conversions.Construction and working of AND and OR logic gates using diodes. Construction of NOT gate using transistor. Symbols and truth table for AND, OR, NOT, NAND NOR and Ex-OR logic gates. Boolean algebra, Boolean laws, Dmorgans theorem. NAND and NOR as universal gates. Introduction to OP-AMP. Differential amplifiers, principle of OP-AMP, OP-AMP parameters, Applications Addition, Subtraction, differentiation and integration.
Unit V
Communication Electronics: Basic theory of amplitude modulation, Power in modulated carrier, single side band transmission, Basic idea of frequency and phase modulation. Modulated class C amplifier, demodulation, and PN diode as demodulator linear and square law detection. Propagation of radio waves, different layers of ionosphere and their functions, Radio communication: Role of ionosphere in radio communication. Block diagram of Radio transmission. The block diagram and diagram of super heterodyne AM Receiver.
Objectives and Outcomes
Objective: To enable students to understand the physics of semiconductors and their applications in basic electronic circuits.
Course outcomes:
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CO1
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Explain the basic concept of semiconductors its characteristics and application.
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CO2
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Apply different configuration of transistor to study its uses.
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CO3
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Ability to understand and apply different type of sinusoidal oscillator.
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CO4
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Explain basic logic gates and OP-AMP and its application.
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CO5
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Explain the basic process in communication electronics.
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CO – PO mapping
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PO1
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PO2
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PO3
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PO4
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PO5
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PO6
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PO7
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PO8
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PO9
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PO10
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PSO1
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PSO2
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PSO3
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PSO4
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CO1
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3
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2
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3
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3
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3
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2
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1
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3
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2
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3
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CO2
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3
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2
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3
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3
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3
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2
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1
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3
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2
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3
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CO3
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3
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2
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3
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3
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3
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2
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1
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3
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2
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3
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CO4
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3
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2
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3
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3
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3
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2
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1
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3
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2
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3
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CO5
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3
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2
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3
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3
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3
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2
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1
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3
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2
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3
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Text Books / References
TEXTBOOKS:1)V.K. Mehta: Electronics.2) BapatYN: Electronic circuits and Systems, TMH, New Delhi. 3) RamakantGaekwad: Operational amplifiers and Linear Integrated Circuits, Prentice Hall of India ltd, New Delhi. REFERENCES: 1) Concepts of modern physics, 6th Edition- A Beiser2) Resnick: Special theory of relativity3) A.P French: Special relativity4) Malvino: Electronic principles, Fifth edition5) C. Kittel: Introduction to solid state physics6) A J. Dekkar: Solid State physics7) J.B. Blackmore: Introduction to solid state physics8) S V Subramanyam: Experiments in Electronics9) R P Jain: Modern Digital Electronics10) Malvino and Leach: Digital principles and applications 11) Grob B: Basic Electronics 12) Boylestead: Network analysis
