III YEAR – V SEMESTER
COURSE CODE: 7BPH5C1
CORE COURSE IX – ANALOG ELECTRONICS
Unit I SEMICONDUCTOR DIODES AND REGULATED POWER SUPPLIES
Semiconductor – p-n junction diode – rectifiers – half and full wave rectifiers – bridge rectifier – efficiency – ripple factor – R-C and π section filter circuits.
Zener diode – characteristics – voltage regulator – regulated power supply using Zener diode.
Unit II TRANSISTORS AND BIASING
Transistor action – CB, CE & CC modes – comparison – amplifier in CE arrangement – load line analysis – cut – off and saturation – Relation between α and β
Transistor biasing - base resistor bias - feedback resistor bias - voltage divider bias – JFET – construction and working - characteristic parameters.
Unit III AMPLIFIERS
Single stage amplifier – Phase reversal – DC & AC equivalent circuits – Voltage gain – Classification of amplifiers – Input impedance of an amplifier
RC, transformer, direct coupled amplifiers – Comparison of different types of amplifiers.
Unit IV OSCILLATORS
Transistor audio power amplifier – Difference between voltage and power amplifiers – Performance quantities of power amplifiers – Classification of power amplifiers – Expression for collector efficiency – Class A amplifier – Push – Pull amplifier.
Feedback principle – Negative and positive feedback – current gain and voltage gain in negative feedback amplifier – Barkhausen condition for oscillation – damped and undamped oscillations –Hartley, Colpitts and phase shift Oscillator.
Unit V OPERATIONAL AMPLIFIER
Characteristics of an ideal op-amp – virtual ground - op-amp biasing – Non-inverting & Inverting amplifiers– Applications of op-amp – adder, subtractor, differentiator, integrator.
Op-amp signal generators: Phase shift, Hartley, Square wave and triangular wave generators.
Text Books:
1. V.K.Mehta, Principles of Electronics, S.Chand & Co Ltd.,10th Edition, New Delhi, 2007.
2. R.S.Sedha – Text Book of Applied Electronics, S.Chand & Co Ltd., II Edition, New Delhi, 2004.
3. Electronic Devices and Circuits – Salivahanan and Suresh Kumar, Mc Graw Hill Edn. New Delhi, 2012
Books for Reference:
1. B.L. Theraja – Basic Electronics – S. Chand & Co, V Edition, New Delhi, 2009.
2. Malvino & Leach – Transistor Approximations – International Publication, New Delhi, – 2000.