TRANSISTOR BIASING CIRCUITS
Bipolar junction transistor biasing and stabilization: Operating point, Analysis and design of fixed bias, Collector to base bias and Voltage divider bias circuits, Bias compensation using diode and thermistor.
JFET Biasing: Fixed bias, Self bias and Voltage divider bias circuits.
MOSFET biasing: Biasing by fixing VGS, Biasing by fixing VG and connecting a resistance at the source, Biasing using a drain to gate feedback resistor.
PRACTICAL
1. Study of Rectifiers and Regulators
2. Test the DC Characteristics of various BJT biasing circuits.
THEORY
Small signal Analysis: small signal analysis of CE amplifier using h-parameter equivalent circuit. Small signal analysis of JFET CS amplifier.
Response of amplifiers at low frequencies: Low frequency analysis of common emitter amplifier Response of amplifiers at high frequencies: Miller effect, High frequency analysis of common emitter amplifier-Short circuit current gain, cut off frequency – fα and fβ unity gain frequencies.
Differential amplifiers.
PRACTICAL
1. Frequency response of Common Emitter amplifier.
2. Frequency response of JFET Common source amplifier.
FEEDBACK AMPLIFIERS & TUNED AMPLIFIERS
THEORY
Basic Feedback amplifiers: Series - Shunt, Series - Series, Shunt – Shunt and Shunt - Series Feedback amplifiers.
Tuned Amplifiers: Analysis of capacitor coupled single tuned amplifier- Double tuned amplifier - Stagger tuned amplifiers- Class C tuned amplifier.
PRACTICAL
1. Transient response of BJT feedback amplifiers.
2. Simulation of Frequency response of feedback amplifiers.
OSCILLATORS & MULTIVIBRATOR CIRCUITS
THEORY
Oscillators: Mechanism for start of oscillation and stabilization of amplitude, General form of an Oscillator, Analysis of LC oscillators - Hartley, Colpitts, RC oscillators - Phase shift - Wien bridge.
Multivibrator Circuits: Astable multivibrator-Monostable multivibrator and Bistable multivibrator.
PRACTICAL
1. Design an astable multivibrator with LEDs at the output.
2. Design and implement a Hartley oscillator.
Simulation experiments
3. Transient response of RC Phase shift oscillators.
THEORY
IC Amplifiers: IC biasing-Current steering circuit using MOSFET- MOSFET current sources- PMOS and NMOS current sources.
Amplifier with active loads: Enhancement load, Depletion load and current source load.
PRACTICAL
Simulation experiments
1. Transient response of PMOS and NMOS current sources.
Reference Book:
1 David A Bell , “Electronic Devices and Circuits”, Oxford University Press, 5th Edition, 2008.
2 B.L. Theraja, A.K. Theraja, “A Text Book of Electrical Technology, Electronic Devices and Circuits”, S. Chand Reprint, 2013.
3 Millman.J. and Halkias C.C, “Integrated Electronics”, McGraw Hill, 2001.
4 Anil K. Maini,Vasha Agarval, “ Electronic Devices and Circuits”, Wiley 1st Edition, 2009.
5 Thomas L Floyd , “Fundamentals of Analog Circuits”, Pearson 2nd Edition, 2012.
Text Book:
1 Sedra and Smith, “Micro Electronic Circuits”; Sixth Edition, Oxford University Press, 2011.
2. Robert L Boylestad, Louis Nashelsky , “Electronic Devices and Circuit Theory”, Pearson 11th Edition, 2015.
