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UNIT-1
SMALL SIGNAL HIGH FREQUENCY TRANSISTOR AMPLIFIER MODELS
BJT: Transistor at high frequencies, Hybrid-p common emitter transistor model, Hybrid π conductance, Hybrid p
capacitances, validity of hybrid p model, determination of high-frequency parameters in terms of low-frequency
parameters, CE short circuit current gain, current gain with resistive load, cut-off frequencies, frequency response
and gain bandwidth product.
FET: Analysis of common Source and common drain Amplifier circuits at high frequencies.
UNIT-2
MULTISTAGE AMPLIFIERS: Classification of amplifiers, methods of coupling, cascaded transistor amplifier and
its analysis, analysis of two stage RC coupled amplifier, high input resistance transistor amplifier circuits and their
analysis-Darlington pair amplifier, Cascode amplifier, Boot-strap emitter follower, Differential amplifier using BJT.
UNIT-3
FEEDBACk AMPLIFIERS: Feedback principle and concept, types of feedback, classification of amplifiers, feedback
topologies, Characteristics of negative feedback amplifiers, Generalized analysis of feedback amplifiers, Performance
comparison of feedback amplifiers, Method of analysis of feedback amplifiers.
UNIT-4
OSCILLATORS: Oscillator principle, condition for oscillations, types of oscillators, RC-phase shift and Wien bridge
oscillators with BJT and FET and their analysis, Generalized analysis of LC Oscillators, Hartley and Colpitt’s
oscillators using BJT, Frequency and amplitude stability of oscillators.
UNIT-5
POwER AMPLIFIERS: Classification of amplifiers(A to H), Class A power Amplifiers, Class B Push-pull amplifiers,
Complementary symmetry push pull amplifier, Class AB power amplifier, Class-C power amplifier, Thermal stability
and Heatsinks.
TUNED AMPLIFIERS: Introduction, Q-Factor, small signal tuned amplifier, capacitance single tuned amplifier, double
tuned amplifiers, staggered tuned amplifiers.
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CategoriesEngineering
Format PDF
TypeeBook