EC6401 Electronic Circuits-II Important Topics - Dhanalakshmi Edition

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DHANALAKSHMI SRINIVASAN ENGINEERING COLLEGE              

Department of Electronics and Communication Engineering

EC6401 ELECTRONIC CIRCUITS II

Important Topics and Part A Questions

UNIT I   FEEDBACK AMPLIFIERS   (REF notes)
1) Properties of negative feedback( derivation and problems)
2) Current series feedback amplifier with analysis
3) Voltage series feedback amplifier with analysis
4) Current shunt and voltage shunt impedance calculation(Rif,Rof)
5) Problems based on voltage series feedback pair, current shunt amplifier.
1) Problems on all five kinds of feedback amplifier.
2) Stability analysis- nyquist plot.(REF assignment)

UNIT II  OSCILLATORS (REF notes)
1) Analysis of RC phase shift oscillator.
2) Analysis of Weinbridge oscillator
3) Analysis of LC Oscillator- Hartley, colpitt,clapp.
4) Crystal Oscillator.
5) Problems on RC, LC, Crystal oscillator
1) Circuit diagram and basics of Armstrong, Franklin, Twin-T Oscillator. 
2) All circuit using FET

UNIT III   TUNED AMPLIFIERS  (REF notes)            
1) Neutralization techniques.
2) Class C tuned amplifier.
3) Single tuned amplifier and capacitively coupled tuned amplifier
4) Stagger tuned amplifier, loaded and unloaded Q, Effect of cascading on B.W.
5) Problems on tuned amplifier.
1) Double tuned amplifier (REF assignment)
                                                                              
 UNIT IV  WAVE SHAPING AND MULTIVIBRATOR CIRCUITS    (Ref notes)     
1) Schmitt trigger circuit,LTP,UTP.( Ref book also)
2) Collector coupled astable mutivibrator.
3) Bistable mutivibrator and triggering methods.
4) RC Low pass circuit with all inputs.
5) Basics of clipper and clamper circuits, Transistor switching characteristics.
1) RC high pass circuits. (Ref Book)
2) Monostable multivibrator 
3) Problems on wave shaping and multivibrator circuits.(Ref Book)
                      
 UNIT V  BLOCKING OSCILLATORS AND TIMEBASE GENERATORS  (Ref Book)
1) UJT saw tooth waveform generator
2) Voltage time base circuits- bootstrap, miller sweep circuit.(also Xerox)
3) Current time base circuits
4) Monostable blocking oscillator with emitter timing and base timing
5) Astable blocking oscillator.