1. HIGH FREQUENCY TRANSISTOR
The high frequency T model, common base short circuit current frequency response, alpha cutoff
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.
2. LARGE SINGAL 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, operation of class- A push-pull
amplifier, class- B push-pull amplifier, crossover distortion, class AB push-pull amplifier, transistor
phase invertor, conversion efficiency of class B amplifiers, design of Class- B push-pull amplifier,
complementary- symmetry amplifier.
3. MULTISTAGE AMPLIFIERS
Coupling of transistor amplifiers, frequency response of coupled amplifiers, cascading of RC coupled
amplifiers and their analysis. Tuned Amplifiers: single tuned, double tuned and stagger tuned
amplifiers and their analysis.
4. FEEDBACK IN AMPLIFIERS
Types of feedback, effect of negative feedback on gain, bandwidth, stability, distortion and frequency
response etc. Voltage series, current series, voltage shunt, current shunt feedback circuits and their
analysis.
5. OSCILLATORS
Conditions of oscillations. Different types of oscillators: RC Phase Shift, Wein Bridge, Hartley,
Colpitts and Crystal Oscillators. Derivation of expression for frequency and amplitude of these
oscillators.
6. REGULATED POWER SUPPLIES
Zener diode as Voltage Regulator, Transistor Series and Shunt Regulators, Current limiting, Line and
Load Regulation.