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UNIT – I
Semiconductors Diodes and Rectifiers: Introduction, general characteristics, energy levels, extrinsic materials n & p type, ideal diode, basic construction and characteristics, DC & AC resistance, equivalent circuits, drift & diffusion currents, transition & diffusion capacitance, reverse recovery times, temperature effects, diode specifications, different types of diodes (zener, varator, schottky, power tunnel, photodiode & LED), Half wave & full wave rectifiers
UNIT – II
Bipolar junction transistor: Introduction, Transistor, Construction, transistor operations, BJT characteristics, load line, operation point, leakage currents, saturation and cut off mode of operations Eber-mall’s model.
Bias stabilization: Need for stabilization, fixed Bias, emitter bias, self bias, bias stability with resfpect of variations in Ico, Vbe & b, stabilization factors, thermal stability.
UNIT – III
Small Signal Amplifiers: CB, CE, CC configurations, hybrid model for transistor at low frequencies, RC coupled amplifiers.
UNIT – IV
Operational Amplifier: Ideal OPAMP, OPAMP stages, OPAMP Parameters, equivalent circuit, Ideal voltage transfer curve, open loop OPAMP configuration, closed loop OPAMP configuration, OPAMP applications: comparator, current sources, rectifiers, first and second order filters, summer, integrator, differentiators, Clipper, clamper, waveform generators, instrumentation amplifier, log, antilog amplifier.
Text Books
1. J. Millman and Halkias, “Electronic devices and circuits” TMH, 1999.
2. Salivahanan, Suresh Kumar, Vallavaraj, “Electronic devices and circuits” TMH, 1999
Reference Book
1. J. Millman and Halkias, “Integrated Electronics, Analog & Digital Circuits & Systems” TMH – 2000.
2. Boylestad & Nashelsky, “Electronic Devices & Circuit Theory” PHI – VIth Edition.
3. Sedra & Smith, “Micro Electronic Circuits” Oxford University Press, 2000
4. J.B.Gupta, “Electronic Devices & Circuits” S. K. Kataria, IInd Edition.
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