ANURAG ENGINEERING COLLEGE(AUTONOMOUS)I IYear B.Tech. EEE I SemL T/P/D C3 1/-/- 3

ELECTRONIC DEVICES AND CIRCUITS

Course Objectives:

1.To provide clear explanation about the operation of basic semiconductor devices available today. 2.To show how each device and its characteristicsis used in appropriate circuits 3.Demonstration of Amplifier Design with different gain & Oscillator circuits with different frequency operation.

UNIT I P-N JUNCTION DIODE AND RECTIFIERS: Quantative theory of P-N Junction, P-N Junction as Diode, Diode Equation, Volt-Ampere Characteristics, Temperature Dependence of VI Characteristic, Transition and Diffusion Capacitances, Diode Equivalent Circuits, Breakdown Mechanisms in Semi Conductor Diodes, Zener Diode Characteristics, Principle of Operation and Characteristics of Tunnel Diode, Schottky Barrier Diode. The P-N Junction as a Rectifier, Half wave Rectifier, Full wave Rectifier, Bridge Rectifier, Harmonic Components in a Rectifier Circuit, Inductor Filters, Capacitor Filters, L-Section Filters, -Section Filters, Comparison of Filters, Voltage Regulation Using Zener Diode, SCR.

UNIT II - BIPOLAR JUNCTION TRANSISTOR AND FIELD EFFECT TRANSISTOR: The Junction Transistor, Transistor Current Components, Transistor Construction, BJT Operation, BJT Symbol, Transistor as an Amplifier, Common Base, Common Emitter and Common Collector Configurations, Limits of Operation, BJT Specifications.

The Junction Field Effect Transistor (Construction, Principle of Operation, Symbol), Pinch Off Voltage Volt Ampere Characteristics, The JFET Small Signal Model, MOSFET (Construction, Principle of Operation, Symbol) MOSFET Characteristics In Enhancement and Depletion Modes.

UNIT III - TRANSISTOR BIASING AND STABILIZATION: Operating Point, The DC and AC Load Lines, Need For Biasing, Fixed Bias, Collector Feedback Bias, Emitter Feedback Bias, Collector Emitter Feedback Bias, Voltage Divider Bias, Bias Stability, Stabilization Factors, Stabilization Against Variation In VBE and , Bias Compensation Using Diodes and Transistors. Thermal Runway, Thermal Stability, Biasing FET.

UNIT IV - BJT AND FET AMPLIFIERS: BJT Hybrid Model, Determination of h-Parameters From Transistor Characteristics, Analysis of A Transistor Amplifier Circuit Using h-Parameters, Comparison of CB, CE And CC Amplifier Configurations.FET Common Source Amplifier, Common Drain Amplifier, Generalized FET Amplifier, FET, As Voltage Variable Resistor, Comparison of BJT And FET, The Uni Junction Transistor

UNIT V: FEED BACK AMPLIFIERS AND OSCILLATORS: Concepts of feedback. Claffication of feedback amplifiers, General characteristics of negative feedback amplifiers, Effect of Feedback on Amplifier characteristics, Simple problems.

Course Outcomes:

1. Concepts of physical electronics particularly solid state devicesand its conductivity.2. Operation ofPN-junction diode, zener diode and other diodes and interpret its characteristics.3. Construction ofdifferent rectifier circuits with and without filters.4. Ability to draw characteristics of a transistor in various configurations and interpret its usages in different regions.5. The concepts of the load line or bias-curve which are used to establish the quiescent operating conditions in a different amplifier circuits.6. Design specifications and circuit construction for Amplifiers & Oscillators.

TEXT BOOKS:

1. Millmans Electronic Devices and Circuits J. Millman, C.C.Halkias, and Satyabrata Jit Tata McGraw Hill, 2nd Ed., 2007.2. Electronic Devices and Circuits R.L. Boylestad and Louis Nashelsky, Pearson/Prentice Hall,9th Edition,2006.3. Introduction to Electronic Devices and Circuits- Rober T. Paynter PE.4. Electronics Devices and Circuits A. P. Godse Technical Publications.

REFERENCE BOOKS:

1. Electronic Devices and Circuits T.F. Bogart Jr., J.S.Beasley and G.Rico, Pearson Education, 6th edition, 2004.2. Principles of Electronic Circuits S.G.Burns and P.R.Bond, Galgotia Publications, 2nd Edn.., 1998.3. Microelectronics Millman and Grabel, Tata McGraw Hill, 1988.4. Electronic Devices and Circuits Dr. K. Lal Kishore, B.S.

ANURAG ENGINEERING COLLEGE(AUTONOMOUS)II Year B.Tech. EEE II Sem L T/P/D C 3 -/-/- 3Course Objectives:

1.To provide clear explanation about the operation of transistor parameters. 2.To show how each device and its characteristics used in appropriate circuits 3.Demonstration of Amplifier Design with different gain & Oscillator circuits with different frequency operation.4. To provide clear explanation about the operation of multi-vibrators to generates different waveforms.

ELECTRONIC CIRCUITS

UNIT-1: SINGLE STAGE AMPLIFIERS DESIGN AND ANALYSIS: Review of CE, CB, CC& CS amplifiers-Classification of Amplifiers, Distortion in amplifiers-exact and Approximate analysis, CE, CB, CC amplifiers comparison. BJT& FET Frequency response - Low frequency analysis-Low frequency response of BJT amplifiers-Low frequency response of FET amplifier-Miller effect capacitance-High frequency response of BJT amplifier-Square wave testing

UNIT II: OSCILLATORS: Condition for oscillations. RC and LC type oscillators, Crystal oscillators, Frequency and amplitude stability of oscillators, Generalized analysis of LC oscillators, Quartz (Hartley, Colpitts), RC-phase shift and Wien-bridge oscillators.

UNIT III: LARGE SIGNAL AMPLIFIERS: Class A Power Amplifier, Maximum Value of Efficiency of Class-A Amplifier, Transformer coupled amplifier- Push Pull Amplifier-Complimentary Symmetry Circuits (Transformer Less Class B Power Amplifier)-Phase Inverters, Transistor Power Dissipation, Thermal Runway, Heat sinks.

UNIT IV: CLIPPERS AND CLAMPERS:

Diode clippers, Transistor clippers, clipping at two independent levels, Transfer characteristics of clippers, Emitter coupled clipper, Comparators, applications of voltage comparators, clamping operation, clamping circuits using diode with different inputs, Clamping circuit theorem, practical clamping circuits, effect of diode characteristics on clamping voltage, Transfer characteristics of clampers.

UNIT V: SWITCHING CHARACTERISTICS OF DEVICES Diode as a switch, piecewise linear diode characteristics, Transistor as a switch, Break down voltage consideration of transistor, saturation parameters of Transistor and their variation with temperature, Design of transistor switch, transistor-switching times.

MULTIVIBRATORS

Analysis and Design of Bistable, Monostable, Astable Multivibrators and Schmitt trigger using transistors, applications.

TEXT BOOKS:

1. Electronic Devices and Circuit Theory, Robert L.Boylestad, Louis Nasheisky, 9th Edition 2007, Pearson Education 2. Electronic Devices and Circuits by S. Salivahanan, N. Suresh Kumar and A. Vallavaraj, 2nd edition 2008, Tata McGraw Hill Companies. 3. Solid State Pulse Circuits by David A. Bell, 4th Edition, Prentice Hall of India

REFERENCE BOOKS:

1. Introductory Electronic Devices and Circuits (Conventional flow version) Robert T. Paynter, 7th Edition, 2009, PEI. 2. Electronic Devices and Circutits, Anil K. Maini, Varsha Agrawal, 1st Edition, WILEY. 3. Pulse, Digital & Switching Waveforms by Jacob Milliman, Harbert Taub and Mothiki S Prakash rao, 2nd edition 2008, Tata McGraw Hill Companies.

Course Outcomes:1. Ability to find out the different parameters of the transistor.2. Design specifications and circuit construction for Amplifiers & Oscillators.3. Ability to find out the different parameters of the power amplifiers.4. Design specifications and circuit construction for Clippers& Clampers.5. Ability to design different types of multi-vibrators.