Electronics and Solid State Devices
B.Sc. pt II Course
B.Sc. pt II Course
Syllabus | In Next class | In prevoius classes | Links
Dates and timings:
Friday and Saturday, 08:00 AM – 09:00 AM (IST)
Starting date:
Revision of pre-requisites from August 12,
new course material from August 26, 2016
I took this subject for teaching because of unavailability of teachers. In October 2016, new teacher took this responsibility. So, this course is over.
Circuit analysis: Networks-some important definitions, loop and nodal equations based on DC and AC circuits (Kirchhof's Laws).
Four terminal network: Ampere-volt conventions, open, close and hybrid parameters of any four terminal network; Input, Output and mutual impedence for an active four terminal network.
Various circuit theorems: Superposition, Thevenin, Norton, reciprocity, compensation, maximum power transfer and Miller theorems. PN junction: Charge densities in N and P materials; Conduction by drift and diffusion of charge carriers, PN diode equation; capacitance effects.
Rectifiers: Half-wave, full wave and bridge rectifier: calculation of ripple factor, efficiency and regulation; Filters: series inductor, shunt capacitor, L section and π section filters.
Voltage regulation: Voltage regulation and voltage stabilization by Zener diode, voltage multiplier.Transistors: Notations and volt-ampere characteristics for bipolar junctions transistor; Concept of load line and operating point, Hybrid parameters. CB, CE, CC configurations; Junction field effect transistor (JFET) and metal oxide semiconductor field effect transistor (MOSFET), Circuit symbols, biasing and volt-ampere characteristics, source follower operation of FET as variable voltage resister.
Transistor biasing: Need of bias and stability of Q point, stability factors and various types of bias circuits for thermal bias stability: fixed bias, collector to base feed back bias and four resistor bias.Amplifiers: Analysis of transistor amplifiers using hybrid parameters and its gain-frequency response; Cascade amplifiers, basic idea of direct coupled and R-C coupled amplifiers; Differential amplifiers.
Amplifier with feed back: Concept of feed back, positive and negative feed back, voltage and current feed back circuits.
Advantages of negative feed back: Stabilization of gain, effect of negative feed back on output and intput resistance, reduction of nonlinear distortion, effect on gain - frequency response.
Oscillators: Criteria for self excited and self sustained oscillations, circuit requirement for build-up of oscillation; Basic transistor oscillator circuit and its analysis: Colpitt's and Hartely oscillators, RC Oscillators, crystal oscillators and its advantages. Logic circuits: Logic fundamentals: AND, OR, NOT, NOR, NAND, XOR gates, Boolean algebra, De Morgan's theorem, positive and negative logic, logic gates circuit realization using DTL and TTL logic, simplification of Boolean expressions.