Lecture: 3
Tutorial: 1
Practical: 3
Year: I
Part: II
Course Objectives
To introduce the fundamentals of analysis of electronic circuits and to provide basic understanding of semiconductor devices and analog integrated circuits.
1. The Bipolar Junction Transistor (9 hours)
- Review of operation of the npn transistor in the active mode
- Review of graphical representation of transistor characteristic
- Analysis of transistor circuits at dc
- Graphical DC load line analysis
- Transistor as an amplifier (rπ, re, gm)
- Biasing BJT for discrete-circuit design
- Small signal equivalent circuit models (π & T)
- Basic single-stage BJT amplifier configuration (C-B, C-E, C-C)
- Small signal analysis of amplifier
- Transistor as a switch – cutoff and saturation
- A general large-signal model of the BJT: The Ebers-Moll model
2. Field-Effect Transistor (10 hours)
- Structure and physical operation of the junction field-effect transistor
- Structure and physical operation of enhancement-type MOSFET
- Current-voltage characteristic of enhancement-type MOSFET
- The depletion-type MOSFET
- Biasing in MOS amplifier circuits
- MOSFET circuits at dc
- MOSFET as an amplifier (Common source)
- MOSFET and CMOS as logic circuits
3. Operational Amplifier Circuits and Oscillator (10 hours)
- Review basic principles of sinusoidal oscillator
- Review Op-Amp square and triangular, RC oscillator circuits
- LC and crystal oscillators
- Integrated circuit timers
- Precision rectifier circuits
- Bias circuits suitable for IC design
- The Widlar current source
- The differential amplifier
- Active loads
- Output stages
4. Output Stages and Power Amplifiers (10 hours)
- Classification of output stages
- Class A output stage
- Class B output stage
- Class AB output stage
- Biasing of class AB output stage
- Power BJT’s
- Transformer-coupled push-pull stage
- Tuned amplifiers
5. Power Supplies, Breakdown Diodes, and Voltage Reference (6 hours)
- Unregulated power supply
- Zener regulated power supply
- Zener diodes, bandgap voltage reference, constant current diodes
- Transistor shunt/series voltage regulator
- Improving voltage regulator performance with feedback
- IC voltage regulator
Practical
- Diode characteristics, rectifiers, zener diodes
- Bipolar junction transistor characteristics and single stage amplifier
- BJT single stage amplifier (Rin, Rout, Gain)
- Power amplifiers
- Field effect transistor characteristics
- FET single stage amplifier
- BJT differential amplifier
- Relaxation oscillator and sinusoidal oscillator (Phase Shift, Wien Bridge)
- Series, shunt and IC voltage regulators
- Multivibrator using 555 timer IC
- Project presentation
Final Examination
| Chapter | Hours | Mark Distribution* |
|---|---|---|
| 1 | 9 | 12 |
| 2 | 10 | 13 |
| 3 | 10 | 13 |
| 4 | 10 | 13 |
| 5 | 6 | 9 |
| Total | 45 | 60 |
There may be minor deviation in marks distribution.
References
- A. S. Sedra and K.C. Smith (2011). “Microelectonic Circuits” 6th Edition, Oxford University Press.
- Robert Boylestad and Louis Nashelsky (2007). “Electronic Device and Circuit Theory”, PHI; 9th Edition.
- Thomas L. Floyd (2007). “Electronic Devices”, 8th Edition, Pearson Education Inc.
- Jacob Millman, C. Halkias, C.D Parikh (2010). “Integrated Electronics” 2nd Edition, McGraw Hill Education P. Ltd.
- David A. Bell (2010). “Electronic Devices and Circuits”, 5th Edition, Oxford Press.