4EE1-POWER ELECTRONICS-II |
Units: I-Feedback Amlifiers: |
Classification, Feedback concept, transfer gain with feedback. General
characteristics of negative feedback amplifiers. Analysis of voltage series, voltage shunt,
current series and current shunt feedback amplifiers. Stability criterion.
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Units: II-Oscillators: |
Classification of oscillators and Criterion for oscillation. RC-phase shift, Hartley,
Colpitts, tuned collector, Wein Bridge and crystal oscillators. Astable, monostable and bistable
multivibrators. Schmitt trigger. |
Units: III-OP-AMP and Its Applications: |
Operational amplifier: inverting and non-inverting modes.
Characteristics of ideal op-amp. Offset voltage and currents. Basic op-amp applications.
Differential Amplifier and common mode rejection ratio. Differential DC amplifier and stable
ac coupled amplifier. Integrator and differentiator. Analog computation, comparators, sample
and hold circuits, logarithmic & antilog Amplifiers and Analog multipliers.
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Units: IV-Integrated Circuits: |
Precision AC/DC converters-precision limiting, Precision half wave and
full wave rectifiers. Active average and peak detectors, A to D and D to A converters. IC 555
timer and its application. Regulated power supplies, Series and shunt voltage regulators, Brief
idea of Monolithic regulator.
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Units: V-Power Amplifiers: |
Class –A large signal amplifiers, second harmonic distortion, higher order
harmonic generation, Transformer coupled audio power amplifier, collector efficiency.
Pushpull amplifier: Class A, Class B and Class AB operations. Comparison of performance
with single ended amplifiers.
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