Anna University Electronics Circuits 2 Notes – EC2251 EC 2 Lecture Notes, Subject Notes for ECE 4th Semester
Download Anna University Electronics Circuits 2 Notes – EC2251 EC 2 Notes download. Here we have provided Electronics Circuits II Notes for ECE Fourth (4th) Semester and also the Content of EC2251 Notes.download EC2251 Electronics Circuits II Anna University Lecture Notes, Subject Notes, Unit Wise Notes.
EC2251 ELECTRONICS CIRCUITS II ANNA UNIVERSITY NOTES – EC2251 EC2 Notes
Subjects : Electronics Circuits II (EC 2)
Subject Code : EC2251
Department : ECE
Semester : 4th Sem
University : Anna University, Chennai
Anna University Electronics Circuits 2 Notes – EC2251 EC 2 Notes download
Content of EC2251 Notes :
UNIT I FEEDBACK AMPLIFIERS
Block diagram, Loop gain, Gain with feedback, Effects of negative feedback – Sensitivity
and desensitivity of gain, Cut-off frequencies, distortion, noise, input impedance and
output impedance with feedback, Four types of negative feedback connections – voltage
series feedback, voltage shunt feedback, current series feedback and current shunt
feedback, Method of identifying feedback topology and feedback factor, Nyquist criterion
for stability of feedback amplifiers.
UNIT II OSCILLATORS
Classification, Barkhausen Criterion – Mechanism for start of oscillation and stabilization
of amplitude, General form of an Oscillator, Analysis of LC oscillators – Hartley, Colpitts,
Clapp, Franklin, Armstrong, Tuned collector oscillators, RC oscillators – phase shift –
Wienbridge – Twin-T Oscillators, Frequency range of RC and LC Oscillators, Quartz
Crystal Construction, Electrical equivalent circuit of Crystal, Miller and Pierce Crystal
oscillators, frequency stability of oscillators.
UNIT III TUNED AMPLIFIERS
Coil losses, unloaded and loaded Q of tank circuits, small signal tuned amplifiers -
Analysis of capacitor coupled single tuned amplifier – double tuned amplifier – effect of
cascading single tuned and double tuned amplifiers on bandwidth – Stagger tuned
amplifiers – large signal tuned amplifiers – Class C tuned amplifier – Efficiency and
applications of Class C tuned amplifier – Stability of tuned amplifiers – Neutralization -
Hazeltine neutralization method.
UNIT IV WAVE SHAPING AND MULTIVIBRATOR CIRCUITS
RC & RL Integrator and Differentiator circuits – Storage, Delay and Calculation of
Transistor Switching Times – Speed-up Capaitor – Diode clippers, Diode comparator -
Clampers. Collector coupled and Emitter coupled Astable multivibrator – Monostable
multivibrator – Bistable multivibrators – Triggering methods for Bistable multivibrators -
Schmitt trigger circuit.
UNIT V BLOCKING OSCILLATORS AND TIMEBASE GENERATORS
UJT sawtooth waveform generator, Pulse transformers – equivalent circuit – response -
applications, Blocking Oscillator – Free running blocking oscillator – Astable Blocking
Oscillators with base timing – Push-pull Astable blocking oscillator with emitter timing,
Frequency control using core saturation, Triggered blocking oscillator – Monostable
blocking oscillator with base timing – Monostable blocking oscillator with emitter timing,
Time base circuits – Voltage-Time base circuit, Current-Time base circuit – Linearization
through adjustment of driving waveform.
1. Sedra / Smith, Micro Electronic Circuits Oxford University Press, 2004.
2. S. Salivahanan, N. Suresh Kumar and A. Vallavaraj, Electronic Devices and Circuits,
2nd Edition, TMH, 2007.
1. Millman J. and Taub H., Pulse Digital and Switching Waveforms, TMH, 2000.
2. Schilling and Belove, Electronic Circuits, 3rd Edition, TMH, 2002.
3 Robert L. Boylestad and Louis Nasheresky, Electronic Devices and Circuit Theory, 9th
Edition, Pearson Education / PHI, 2002.
4. David A. Bell, Solid State Pulse Circuits, Prentice Hall of India, 1992.
5. Millman and Halkias. C., Integrated Electronics, TMH, 1991.
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