B.Sc. semester III Subject: electronics Paper I: DIGITAL ...

2B.Sc. semester IIISubject: electronicsPaper II: APPLIED ELECTRONICS IUNIT1FEED BACK: general theory of feedback, classification of feedback, closedloop gain, open loop gain & their return differences, advantage of negative feedback, gain stability decreased distortion, increased band width, forms of negativefeed back: voltage series feedback, voltage shunt feedback, current shuntfeedback, current shunt feedback.(Numerical exercises related to feedback).UNIT2MULTISTAGE AMPLIFIRES: general – amplifier-coupling RC coupledtwo-stage amplifier, advantages of RC coupling Impedance coupled two-stageamplifier, advantages of Impedance coupling Transformer coupled two-stageamplifier, advantages of Transformer coupling Direct coupled two stageamplifier, advantages of Direct coupling and conventional problem related tothem.UNIT3FIELD EFFECT TRANSISTOR AMPLIFIRE: Introduction, biasing ofFET, JFET ,gate bias, Q point, voltage divider bias, source bias, current sourcebias, biasing of enhancement MOSFET and depletion MOSFET, FET amplifier,Common source amplifier, Common drain amplifier, Common gate amplifier(Numerical exercises related to different FET amplifier).UNIT4SINUSODIAL OSILLATORS: Introduction comparison between amplifierand oscillator, classification, applications, nature, circuit, frequency, frequencystability of an oscillator, Barkhausen criterion, tuned circuit oscillator, Hartleyoscillator, Colpitts oscillator, Clapp oscillator, Crystal oscillator, RC oscillator,Phase shift oscillator, Wein bridge oscillator, (qualitative study).UNIT5NON-SINUSODIAL OSILLATORS: Introduction, classification, transistoras a switch, Multivibrator: types of Multivibrator, A stable Multivibrator, Monostable Multivibrator Bi stable Multivibrator applications of Multivibrator blockingoscillator (qualitative study).