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210242: ELECTRONIC DEVICES AND CIRCUITS

Teaching SchemeExamination Scheme

Lectures: 3 hours/weekTheory: 100 Marks

Prerequisite: Basic Electronics Engineering (Subject Code: 104011)

Learning Objectives

1.

To understand working principles of electronic devices and circuits

2.

To understand applications of electronic devices and circuits

3.

To understand design and analysis of electronic circuits

Unit I:Transistor biasing and small signal amplifiers

1.1

Transistor Biasing Circuits:

Fixed Bias, Collector Base Bias, Self Bias, Stability Factors – S, S’ and S’’: Definition and derivation of equations for Self Bias Circuit only, Comparison of the bias circuits, Need of and techniques for bias compensation, Thermal run away, Derivation of equation for Thermal Stability.          4 Hrs

1.2

Small Signal Amplifiers:

Meaning of Small Signal, Low frequency h-parameter Model, Analysis of C.E., C.B., C.C. Amplifiers using approximate h-parameter model, Miller Theorem and Bootstrap Emitter Follower Circuit, Bootstrap Darlington Pair          4 Hrs

Unit II: Multi stage and feedback amplifiers

2.1

Multi Stage Amplifiers:

Need of Cascading, Block Diagram of Cascaded Amplifier, Effect on Gain and Bandwidth, Analysis of Two Stage R-C Coupled Amplifier in CE-CE, CE-CB, CE-CC configurations for determination of Voltage gain (Av), Current gain (Ai), Input Impedance (Ri) and Output Impedance (Ro)

Concept of Large Signal Amplification, Large Signal Amplifiers – Classification on the Basis of Q point location, Comparison of various Amplifier Classes          4 Hrs

2.2

Feedback Amplifiers:

Classification of Amplifiers, Block Diagram of Feedback Amplifier, Analysis of Topologies of Feedback Amplifiers, Effect of Negative Feedback on Amplifier Parameters (No Derivation) and Comparison in tabular form          4 Hrs

Unit III:  FET and MOSFET

3.1

Construction, Types of FET, Symbol, Operation, Drain and Transfer Characteristics and Parameters. JFET and MOSFETS – DMOSFET and EMOSFET, Biasing Circuits for JFET and MOSFET- Biasing against Device Variation, Biasing for Zero Current Drift             3 Hrs

3.2 Small Signal Analysis of FET Amplifier. Parameters- Voltage gain (Av), Input Impedance (Ri) and Output Impedance (Ro) for both CS and CD Amplifier                                    3 Hrs

Unit IV: Operational Amplifier

4.1

Block Diagram of an OP-Amp, Direct Coupled Differential Amplifier Circuit, Level Shifter and the Output Stage. Op-Amp Parameters: Definitions, Significance and Typical Values (No     Measurement)            3 Hrs

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