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1st June 2020, 02:54 PM
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Re: Anna University EEE 4 Sem Syllabus

Electronics and Communication Engineering (ECE) 4th SEM EC8452

UNIT I FEEDBACK AMPLIFIERS AND STABILITY
Feedback Concepts – gain with feedback – effect of feedback on gain stability, distortion,bandwidth, input and output impedances; topologies of feedback amplifiers – analysis of series-series, shunt-shunt and shunt-series feedback amplifiers-stability problem-Gain and Phase-margins-Frequency compensation.

UNIT II OSCILLATORS
Barkhausen criterion for oscillation – phase shift, Wien bridge – Hartley & Colpitt‘s oscillators – Clapp oscillator-Ring oscillators and crystal oscillators – oscillator amplitude stabilization

UNIT III TUNED AMPLIFIERS
Coil losses, unloaded and loaded Q of tank circuits, small signal tuned amplifiers –Analysis of capacitor coupled single tuned amplifier – double tuned amplifier – effect of cascading single tuned and double tuned amplifiers on bandwidth – Stagger tuned
amplifiers – Stability of tuned amplifiers – Neutralization – Hazeltine neutralization method.

UNIT IV WAVE SHAPING AND MULTIVIBRATOR CIRCUITS
Pulse circuits – attenuators – RC integrator and differentiator circuits – diode clampers and clippers –Multivibrators – Schmitt Trigger- UJT Oscillator.

UNIT V POWER AMPLIFIERS AND DC CONVERTERS
Power amplifiers- class A-Class B-Class AB-Class C-Power MOSFET-Temperature Effect- Class AB Power amplifier using MOSFET –DC/DC convertors – Buck, Boost, Buck-Boost analysis and design


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