EC2251ELECTRONIC CIRCUITS II 
FEEDBACK AMPLIFIERS 
Block diagram, Loop gain, Gain with feedback, Effects of negative feedback – Sensitivity and desensitivity of gain, Cutoff 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. 
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  TwinT 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 
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. 
WAVE SHAPING AND MULTIVIBRATOR CIRCUITS 
RC & RL Integrator and Differentiator circuits – Storage, Delay and Calculation of Transistor Switching Times – Speedup 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. 
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 – Pushpull 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  VoltageTime base circuit, CurrentTime base circuit  Linearization through adjustment of driving waveform. 
REFERENCE 
Text Books 
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. 
Reference Books 
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. 
