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Course Contents

Frequencies Respond of an RC amplifier: Negative Feedback Oscillator: Introduction Power Amplifier Modulation and Demodulation Integrated Circuit

Course Synopsis

Frequencies Respond of an RC amplifier: Cascade amplifier, The Amplifier pass band, The frequency plot, Low frequency plot, Low frequency limit, The unbypassed emitter resistor, High frequency equivalent circuit, The Miller Effect, High frequency limit of transistor, Band width of a cascade amplifier. Negative Feedback: Positive and Negative feedback, Principle of feedback amplifier, stabilization of gain by negative feedback, Bandwidth improvement with negative feedback, Reduction of nonlinear distortion, control of amplifier output and input resistance, A current series feedback circuit, Voltages shunt feedback circuit. Oscillator: Introduction, Classification of oscillators, Damped and undamped oscillators, the oscillatory circuit, frequency stability of an oscillator, Essentials of a feed back LC oscillator, tuned base oscillator, Hartley oscillator, colpitis oscillator, crystal oscillator Power Amplifier: Introduction, Power relation in class-A Amplifier, Effect of thermal environment, Determination of the output distortion, Class-B amplifier, Efficiency of class-A and class-B amplifier. Modulation and Demodulation: Introduction, carrier wave modulation, Need for modulation, radio Broadcasting, Methods of modulation, amplitude modulation, Forms of amplitude modulation, single side band system of modulation, Diode for linear detector for amplitude modulation, High power level amplitude modulation, automatic volume control, Frequency modulation. Multivibrators: Multivibrators, Basic types of Multivibrators, uses of Multivibrators, Astable Multivibrators, Mono-stable Multivibrators, Bi-stable Multivibrators, Schmitt Trigger. Integrated Circuit: Introduction, Integrated circuit advantages and drawbacks, scale of integration, classification of integrated circuit by structure, Classification of integrated circuit by function, comparison between different integrated circuit. Integrated circuit terminology, Integrated circuit fabrication, Basic processing steps. Silicon device processes Silicon wafer preparation, diffusion, Oxidation photolithography, Chemical vapour deposition, Metallization, Circuit probing, Scribing and separating into chips, Mounting and packing applications of integrated circuit.

Course Learning Outcomes

After successful completion of the course student will be able to: 1. They Know about different power amplifier circuits, their design and use in electronics and communication circuits. 2. They Know the concept of feedback amplifier and their advantages in electronics circuit to get stable output. 3. They can easily design the different oscillator circuits for various frequencies 4. They can understand the function designing of different multi vibrators and their uses 5. They can understand the fabrication of IC's and their functions

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