JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
II Year B.Tech. ECE -  I Sem      L  T/P/D  C    4  -/-/-  4
(53009) ELECTRONIC DEVICES AND CIRCUITS

UNIT-1: p-n Junction Diode: Qualitative Theory of p-n Junction, p-n Junction as a Diode, Diode Equation ,Volt –Ampere Characteristics Temperature dependence of VI characteristic, Ideal versus Practical – Resistance levels (Static and Dynamic), Transition and Diffusion Capacitances, Diode Equivalent Circuits, Load Line Analysis, Breakdown Mechanism in Semi-Conductor Diodes, Zener Diode Characteristics

UNIT-2: Rectifiers and Filters: The p-n junction as a Rectifier, Half wave Rectifier Full wave Rectifier, Bridge Rectifier Harmonic components in a Rectifier Circuit, Inductor Filters, Capacitor Filters,
L – Section Filters, β – Section Filters, Comparison of Filters, Voltage Regulation using Zener Diode

UNIT-3: Bipolar Junction Transistor: The Junction Transistor, Transistor Current Components,
Transistor as an Amplifier, Transistor Construction, BJT Operation, BJT Symbol, Common Base, Common Emitter and Common Collector Configurations, Limits of Operation, BJT Specifications.

UNIT-4: Transistor Biasing and Stabilization: Operating Point, The DC and AC Load lines, Need for Biasing, Fixed Bias, Collector Feedback Bias, Emitter Feedback Bias, Collector – Emitter Feedback Bias, Voltage Divider Bias, Bias Stability, Stabilization Factors, Stabilization against variations in V_BE and ậ, Bias Compensation using Diodes and Transistors, Thermal Runaway, Thermal Stability.

UNIT-5: Small Signal Low Frequency BJT Models: BJT Hybrid Model Determination of h-parameters from Transistor Characteristics Analysis of a Transistor Amplifier Circuit using h-Parameters, Comparison of CB, CE, and CC Amplifier Configurations.

UNIT-6: Field Effect Transistor: The Junction Field Effect Transistor (Construction, principle of operation, symbol)– Pinch-off Voltage – Voltage-Ampere characteristics, The JFET Small Signal Model, MOSFET Characteristics in Enhancement and Depletion modes.

UNIT-7: FET Amplifier: FET Common Source Amplifier, Common Drain Amplifier, Generalized FET Amplifier Biasing FET, FET as Voltage Variable Resistor, Comparison of BJT and FET, The Uni Junction Transistor.

UNIT-8: Special Purpose Electronic Devices: Principle of Operation Characteristics of Tunnel Diode  (with the help of Energy Band Diagram) Varactor Diode. Principle of operation of Schottky Barrier Diode, SCR, and Semiconductor Photo Diode.