PY1543-ELECTRONICS (72 HOURS-4 CREDITS)
Unit 1. Circuit Theory (4 hours)
Kirchhoff’s law- Ideal voltage and current sources- Thevenin’s and Norton’stheorem, Maximum power transfer theorem
Unit 2. Diode Circuits(14 hours)
Extrinsic semiconductors-n- type and – p-type semiconductors-PN junction-PN junction under forward and reverse biased conditions-r m s value and peakinverse voltage- diode characteristics-ac and dc resistances- half wave and full wave rectifiers- (average dc value of current, ripple factor and efficiency)- different types of filters(shunt capacitor, LC and RC)- break down mechanism in diodes- Zener diode- voltage regulator
Unit 3.Transistors(16 hours)
Theory of BJT operation- CB,CE and CC characteristics-alpha , beta and gamma – relation between transistorcurrents- biasing circuits(CE configuration)- stability factors-selection of operating point-ac and dc load lines-Q point-collector feedback; base resistor and potential divider methods- BJT amplifiers- input and outputimpedances-graphical analysis of CE amplifier(frequency response,band width and gain in dB)- emitter follower.
Unit 4. Power amplifiers: (5 hours)
Amplifier classes and efficiency - class A operation - transformer coupled class A amplifier - class B amplifier - push pull amplifier - basic ideas of class C operation - distortion in amplifiers. Unit 5. Feedback & Oscillator circuits (8 hours) Feedback principles – negative feedback - advantages of negative feedback - positive feedback - principle of sinusoidal feedback- oscillation - Barkhausen criterion for oscillations - RC phase shift, Hartley Oscillator, Colpitt’s, Oscillator (derivations not required).
Unit 6. Modulation (5 hours)
Fundamentals of modulation - AM, FM - frequency spectrum of AM - power in AM - demodulation of AM signal - frequency spectrum for FM
Unit 7. Special devices: (8 hours)
JFET- Basic construction - Theory of operation - Static characteristics - Drain characteristics- Advantages - MOSFET – Depletion enhancement MOSFET – Construction – Static characteristics. Uni-junction Transistor - Constructionoperation.
Unit 8. Operational amplifiers (IC741)(12 hours)
Introduction – Schematic symbol and pin configuration - circuit configuration and block diagram representation – differential amplifier-ideal OP amp. - CMRR – differential mode and common mode – virtual ground principle – parameters of OP amp. - inverting amplifier – non-inverting amplifier –summing- differentiatorintegrator amplifiers.
Books for Study:
1. Basic electronics: Devices, circuits and IT fundamentals: Santiram Kal, PHI, 2009
2. Basic Electronics-Solid State: B. L. Theraja, S. Chand Ltd., 2005
3. Principles of Electronics: V. K. Mehta, S. Chand Ltd.,2005
4. A first course in Electronics: Anwar A. Khan, Kanchan K. Dey,PHI, 2006
5. Communication Electronics:Jose Robin and Ubald Raj, Indira Publications, 2002
Books for Reference:
5. Electronic Devices and Circuits: Theodore F. Bogart Jr., Universal book stall
6. Electronic devices and Circuit theory: Robert Boylestad & Louis Nashelski,PHI,5th Edn. 7. Electronic fundamentals & applications: John D Ryder, PHI, 4thEd
