Small Signal Low Frequency Transistor Model
Transistor Hybrid model, Determination of h-parameters, Analysis of transistor amplifier circuit using h
parameters, comparison of transistor amplifier configurations. Linear analysis of a transistor circuit, physical
model of CB transistor.
Low Frequency Transistor Amplifier Circuits
Effect of an emitter bypass capacitor on low frequency response, effect of coupling capacitor on low
frequency response, cascading of transistor amplifiers, CE hybrid model, analysis of CC and CB
configurations, CE amplifier with emitter resistance, Emitter follower, Miller’s theorem, high input- resistance
transistor circuits, cascade transistor configuration, difference amplifiers.
High Frequency Transistor
The high frequency T model, common base short circuit current frequency response, alpha cut off frequency,
common emitter short circuit current frequency response, hybrid pi CE transistor model, hybrid pi
conductance in terms of low frequency h parameters, CE short circuit current gain obtained with hybrid pi
model, current gain with resistive load.
Large Signal Amplifiers
Class A direct coupled with resistive load, Transformer coupled with resistive load, design theory, power
amplifier design, harmonic distortion, power output, variation of output power with load, thermal runaway,
output transformer saturation, push-pull amplifiers, operations of class A push-pull amplifier, class B pushpull
amplifier, crossover distortion, class AB push-pull amplifier, transistor phase inverter, conversion
efficiency of class B amplifier, design of class B push-pull amplifier, complementary symmetry amplifier.
Oscillators
Effect of positive feed back, requirements for oscillations, phase shift oscillator, colpitts oscillator, Hartley
oscillator, Wein bridge oscillator, general form of oscillator circuit, crystal oscillators, frequency stability,
negative resistance in oscillators.
Regulated power supplies
Unregulated power supplies, zener diode voltage regulators, transistor series and shunt regulators, current
limiting, Op-Amp voltage regulators, integrated circuit voltage regulators, line and load regulations,
introduction to SMPS and its various topologies.