# NIT Calicut IV Sem EE Syllabus

**EE2007 ELECTRICAL MACHINES I**

**Module 1: Electromagnetic Machines (8 hours)**

Fundamental principles – classification – generators, motors and transformers – elements of electromagnetic

machines – armature windings – commutator winding – lap winding and wave winding – phase winding – single

phase winding and three phase winding – single layer winding and double layer winding – MMF of a winding –

space harmonics – torque developed in a winding – EMF developed in a winding – distribution factor – chording

factor.

Module 2: DC Machines (7 hours)

Construction – principle of operation – magnetic circuit – flux distribution curve in the air-gap – EMF equation –

armature reaction – demagnetizing and cross magnetizing ampere turns – commutation – methods of excitation –

generators and motors.

Module 3: DC Generators and Motors (12 hours)

DC Generators: Power flow diagram -circuit model – magnetization characteristics – process of voltage build up –

terminal characteristics – control of terminal voltage – parallel operation – applications.

DC Motors: Power flow diagram – circuit model – back EMF – torque and speed equations performance

characteristics – applications – starting methods – design of starters – methods of speed control – testing –

Swinburne’s test – Hopkinton’s test – separation of losses – retardation test – permanent magnet DC motor.

Module 4: Transformers (15 hours)

Types and construction – principle of operation – magnetizing current – harmonics – ideal and real transformer –

dot convention – current and voltage ratio – equivalent circuit – phasor diagram – per unit impedance – losses –

efficiency and regulation – all day efficiency – OC and SC tests – Sumpner’s test – parallel operation – tap

changing – switching transients – auto transformers – voltage and current relationships – saving of copper –

different connections of three phase transformers – notations – Scott connection – cooling methods.

Text/Reference Books:

1. Clayton & Hancock, Performance & Design Of DC Machines, CBS, 3rd edition, 2001

2. Langsdorf A.S., Principles of DC Machines, McGraw Hill.6th edition, 1959.

3. Say M. G, Performance & Design of AC Machines, Pitman, ELBS.3rd edition, 1983.

4. Langsdorf A.S., Theory of AC Machinery, McGraw Hill., 2nd edition, 2002.

5. Toro V.D, Electrical Machines & Power Systems, Prentice Hall, 2nd edition, 2003.

6. Chapman S.J, Electric Machinery Fundamentals, McGraw Hill, 2nd edition, 1991.

7. Nagarath I.J. & Kothari D.P, Electric Machines, Tata McGraw Hill, 3rd edition, 2004.

EE2008 ANALOG ELECTRONIC CIRCUITS & SYSTEMS

Pre-requisites: EE2004 Basic Electronic Circuits

L T P C

3 0 0 3

Total Hours : 42 Hours

Module 1: (11 Hours)

Feedback Amplifiers ,Stability and Oscillators ( s-domain approach is envisaged)

Concept of Feedback-Negative and Positive Feedback-Loop Gain-Closed Loop Gain-Voltage Series Feedback

on a single time constant voltage to voltage amplifier-Advantages of negative feedback in a single time constant

voltage to voltage amplifier-gain, input and output resistances, rise time, bandwidth, nonlinearity etc- stability

and positive feedback in the above amplifier-Voltage Shunt,Current series and Current Shunt topologies and

properties.

Voltage Series feedback on a second order amplifier-Closed Loop poles and loop gain-Transient Response of

Closed Loop Amplifier vs Loop Gain-Voltage Series Amplifier with third order open loop amplifier-pole

migration to right half of s-plane – Bode Plots of Loop Gain-Barkhausen’s criterion for stability of feedback

amplifiers-Gain Margin and Phase Margin-Introduction to amplifier compensation-dominant pole compensation-

Oscillators- Transistor Phase Shift Oscillator-Wein’s Bridge Oscillator

Module 2: (11 Hours)

Linear Opamp Circuits

BJT and MOSFET Differential Amplifiers-Common Mode and Differential Mode gains-CMRR-Current Source

Biasing-Offset behaviour.

Current Sources for biasing inside an IC.

Operational Amplifier-ideal opamp properties-properties of practical opamps (LM741,LM324,LM358,LF351and

OP07)-different stages in an opamp-internally compensated and externally compensated opamps-slew rate –

offsets.

CMOS Operational Amplifiers – basic two-stage CMOS Opamp – Folded Cascode Opamp

Analysis of opamp circuits using ideal opamp model-concept of virtual short and its relation to negative

feedback-offset model of a practical opamp-

Non inverting Amplifier-Gain bandwidth product-Voltage Follower-Inverting Amplifier-Summing Amplifier-

Offset analysis of Non inverting and inverting amplifiers-Subtracting Circuit-Instrumentation Amplifier-Voltage

to Current Converter for floating and grounded loads-Opamp Integrator-Opamp Differentiator.

Series Voltage Regulators-Monolithic Regulators-Three terminal regulators.

Module 3: (10 Hours)

Nonlinear IC Applications

Regenerative Comparator Circuits using Opamps-Comparator IC LM311 and its applications-Square, Triangle

and Ramp Generator Circuits using Opamps and Comparator ICs-Effect of Slew Rate on waveform generation-

Study of Function Generator IC ICL8038- Principles of VCO circuits-

Opamp based Astable and Monostable Circuits, Sweep circuits, Staircase waveform generation, Timer ICs – 555

Applications

Precision half wave and full wave rectification using opamps-

Log and antilog amps and applications.

Phase Locked Loops-Principles-Lock and Capture Ranges-Capture Process-Loop Filter-PLL dynamics under

locked condition-study of NE564 and CD 4046-Applications of PLL in signal reconstruction, noise rejection,

frequency multiplication, frequency synthesis, FSK demodulation, FM demodulation, line synchronization etc.

Module 4: (10 Hours)

Signal Conditioning and Signal Conversion

Active Filtering-Butterworth Low Pass Filter Functions-Low Pass Filter Specifications-order and cut off

frequency of Butterworth Function from Low Pass Specifications-Sallen and Key Second Order LP Section-

Gain Adjustment in Butterworth LP filters-Butterworth High Pass Filters-Second Order Wide Band and Narrow

Band Bandpass Filters. Multiple Feedback Single OPAMP LPF,HPF & BPF.

Analog Switches-Sample and Hold Amplifier-Data Conversion Fundamentals-D/A Conversion-Weighted

Resistor DAC- R/2R Ladder DAC-Current Switching DAC-Multiplying DAC-Bipolar DACs-A/D conversion-

Quantiser Characteristics-Single Slope and Dual Slope ADCs-Counter Ramp ADC-Tracking ADC – Successive

Approximation ADC-Simultaneous ADC.

Text/Reference Books:

1. A.S Sedra and K.C Smith, .’Microelectronic Circuits’, Oxford University Press, 5th Edn,2009

2. Millman J, ‘Microelectronic’, 2nd edition, McGraw-Hill, New Delhi,2005.

3. Schilling & Belove, ‘Electronic Circuits – Discrete and Integrated’, 3rd edition , McGraw-Hill, New

Delhi,2006

4. D.H. Sheingold, .Nonlinear Circuits Handbook., Analog Devices Inc. 1976

5. Sergio Franco, ‘Design with Operational Amplifiers and Analog Integrated

Circuits’, Tata McGraw-Hill, New Delhi, 2005

6. M.E Van Valkenburg, ‘Analog Filter Design’, Oxford University Press 2001

7. National Semiconductor, ‘Linear Applications Handbook’, 1994

8. Anvekar D.K. & Sonde B.S, ‘Electronic Data Converters’, Tata McGraw Hill,1994

9. Gayakwad R.A, ‘OPAMPS & Linear Integrated Circuits’, 3rd edition, Prentice Hall of India,1995.

10. Clayton G.B,’Operational Amplifiers’, 5th edition, Oxford ,2004

11. Frederiksen T.M, ‘Intuitive Operational Amplifiers’, McGraw Hill,1996.