ELECTRONIC CIRCUITS

Single Stage Amplifiers Design and Analysis Review of CE, CB, CC & CS amplifiers - Classification of amplifiers, Distortion in amplifiers - Approximate analysis, CE, CB, CC amplifiers comparison. BJT & FET Frequency Response Logarithms - Decibels - General frequency consideration - Low frequency analysis - Low frequency response of BJT amplifiers - Low frequency response of FET amplifier - Miller effect capacitance - High frequency response of BJT amplifier - Square wave testing. Feedback Amplifiers Concept of feedback, Classification of feedback amplifiers, General characteristics of negative feedback amplifiers, Effect of feedback on amplifier characteristics - Voltage series - Voltage shunt, Current series and current shunt feedback configurations-Simple problems. Oscillators Conditions for oscillations. RC and LC type oscillators, Crystal oscillators, Frequency and amplitude stability of oscillators, Generalized analysis of LC oscillators, Quartz, Hartley and Colpitts oscillators, RC - phase shift and Wien-bridge oscillators. Large Signal Amplifiers Class - A power amplifier, Maximum value of efficiency of Class - A amplifier, Transformer coupled amplifier - Push pull amplifier - Complimentary symmetry circuits (Transformerless class B power amplifier) - Phase inverters, Transistor power dissipation, Thermal runway, Heat sinks. Linear Waveshaping High pass, Low pass RC circuits, Their response for sinusoidal, Step, Pulse, Square and ramp inputs. Clippers and Clampers Diode clippers, Transistor clippers, Clipping at two independent levels, Transfer characteristics of clippers, Emitter coupled clipper, Comparators, Applications of voltage comparators, Clamping operation, Clamping circuit using diode with different inputs, Clamping circuit theorem, Practical clamping circuits, Effect of diode characteristics on clamping voltage, Transfer characteristics of clampers. Switching Characteristics of Devices Diode as a switch, Piecewise linear diode characteristics, Transistor as a switch, Break down voltage consideration of transistor, Saturation parameters of transistor and their variation with temperature, Design of transistor switch, Transistor-switching times. Multivibrators Analysis and design of bistable, Monostable, Astable multivibrators and Schmitt trigger using transistors.