Classification, Feedback concept, Transfer gain with feedback,
General characteristics of negative feedback amplifiers. Analysis of voltage-series, voltage-shunt, currentseries
and current-shunt feedback amplifier. Stability criterion.
Units: II-OSCILLATORS :
Classification. Criterion for oscillation. Tuned collector, Hartley, Colpitts, RC
Phase shift, Wien bridge and crystal oscillators, Astable, monostable and bistable multivibrators. Schmitt
trigger. Blocking oscillators.
Units: III-HIGH FREQUENCY AMPLIFIERS :
Hybrid Pi model, conductances and capacitances of hybrid
Pi model, high frequency analysis of CE amplifier, gain-bandwidth product. Emitter follower at high
frequencies.
Units: IV-TUNED AMPLIFIER
Band Pass Amplifier, Parallel resonant Circuits, Band Width of Parallel
resonant circuit. Analysis of Single Tuned Amplifier, Primary & Secondary Tuned Amplifier with BJT &
FET. Double Tuned Transformer Coupled Amplifier. Stagger Tuned Amplifier. Pulse Response of such
Amplifier. Shunt Peaked Circuits for Increased Bandwidth.
Units: V-POWER AMPLIFIERS :
Power amplifier circuits, Class A output stage, class B output stage and
class AB output stages, class C amplifiers, pushpull amplifiers with and without transformers.
Complementary symmetry & quasi complimentary symmetry amplifiers