BEC303 Electronic Principles and Circuits
Course Learning Objectives
● Design and analyse the BJT circuits as an amplifier and voltage regulation.
● Design of MOSFET Amplifiers and analyse the basic amplifier configurations using small signal equivalent circuit models
● Design of operational amplifiers circuits as Comparators, DAC and filters.
● Understand the concept of positive and negative feedback.
● Analyze Power amplifier circuits in different modes of operation.
● Construct Feedback and Oscillator circuits using FET.
● Understand the thyristor operation and the different types of thyristors.
SYLLABUS COPY
MODULE - 1
BJT AC models
Base Biased Amplifier, Emitter Biased Amplifier, Small Signal Operation, AC Beta, AC Resistance of the emitter diode, Two transistor models, Analyzing an amplifier. Voltage Amplifiers: Voltage gain, Multistage Amplifiers.
CC and CB Amplifier
CC Amplifier, Output Impedance, Cascading CE and CC, Darlington Connections, Voltage regulation, The Common base Amplifier.
MODULE - 2
MOSFET
Biasing in MOS amplifier circuits: Fixing VGS, Fixing VG, Drain to Gate feedback resistor.
Small signal operation and modelling: The DC bias point, signal current in drain, voltage gain,
small signal equivalent circuit models, transconductance, The T equivalent circuit model.
MOSFET Amplifier configuration: Basic configurations, characterizing amplifiers, CS amplifier
with and without source resistance, The Common Gate Amplifier, Source follower.
MODULE - 3
Linear Opamp Circuits
Summing Amplifier and D/A Converter, Nonlinear Op-amp Circuits: Comparator with zero reference, Comparator with non-zero references. Comparator with Hysteresis.
Oscillator
Theory of Sinusoidal Oscillation, The Wein-Bridge Oscillator, RC Phase Shift Oscillator, The Colpitts Oscillator, Hartley Oscillator, Crystal Oscillator.
The 555 timer: Monostable Operation, Astable Operation.
MODULE - 4
Negative Feedback
Four Types of Negative Feedback, VCVS Voltage gain, Other VCVS Equations, ICVS Amplifier, VCIS Amplifier, ICIS Amplifier (No Mathematical Derivation). Active Filters: Ideal Responses, First Order Stages, VCVS Unity Gain Second Order Low pass Filters, VCVS Equal Component Low Pass Filters, VCVS High Pass Filters, MFB Bandpass Filters, Bandstop Filters.
MODULE - 5
Power Amplifiers
Amplifier terms, Two load lines, Class A Operation, Class B operation, Class B push pull emitter follower, Class C Operation.
Thyristors
The four layer Diode, SCR, SCR Phase control, Bidirectional Thyristors, IGBTs, Other Thyristors.
Course outcome
At the end of the course the student will be able to:
CO 1. Understand the characteristics of BJTs and FETs for switching and amplifier circuits.
CO 2.Design and analyze amplifiers and oscillators with different circuit configurations and biasing conditions.
CO 3. Understand the feedback topologies and approximations in the design of amplifiers and oscillators.
CO 4.Design of circuits using linear ICs for wide range applications such as ADC, DAC, filters and timers.
CO 5. Understand the power electronic device components and its functions for basic power electronic circuits.
Suggested Learning Resources
Textbooks
1. Albert Malvino, David J Bates, Electronic Principles, 7 Edition, Mc Graw Hill Education, 2017, ISBN:978-0-07-063424-4.
2. Microelectronic Circuits, Theory and Applications, Adel S Sedra, Kenneth C Smith, 6thEdition, Oxford, 2015.ISBN:978-0-19-808913-1