Power Electronics (BEE503)

Power Electronics

Course Code BEE503 
CIE Marks 50
Teaching Hours/Week (L:T:P: S) 4:0:0:0 
SEE Marks 50
Total Hours of Pedagogy 50 
Total Marks 100
Credits 04 
Examination type (SEE) Theory

Module-1

Introduction: Applications of Power Electronics, Ideal Characteristics of switches Characteristics of practical

devices; Specifications of Switches, control characteristics of power devices, Types of Power Electronic

Circuits, Peripheral Effects, Intelligent Modules.

Power Diodes: Introduction, Diode Characteristics, Reverse Recovery Characteristics, Power Diode Types,

Silicon Carbide Diodes, Silicon Carbide Schottky Diodes, Freewheeling diodes, Freewheeling diodes with RL

load.

Diode Rectifiers: Introduction, Diode Circuits with DC Source connected to R and RL load, Single-Phase FullWave Rectifiers with R load, Single-Phase Full-Wave Rectifier with RL Load.

Module-2

Power Transistors: Introduction, Bipolar Junction Transistors – Steady State Characteristics, Switching

Characteristics, Switching Limits, Power MOSFETs – Steady State Characteristics, Switching Characteristics,

IGBTs; BJT Base Drive, MOSFET Gate Drive, Isolation of Gate and Base Drives, Pulse transformers and Optocouplers.

Module-3

Thyristors: Introduction, Thyristor Characteristics, Two-Transistor Model of Thyristor, Thyristor Turn- On,

Thyristor Turn-Off, A brief study on Thyristor Types, Series Operation of Thyristors, Parallel Operation of

Thyristors, di/dt Protection, dv/dt Protection, Thyristor Firing Circuits, Unijunction Transistor.

Module-4

Controlled Rectifiers: Introduction, Single phase half wave circuit with RL Load, Single phase half wave

circuit with RL Load and Freewheeling Diode, Single phase half wave circuit with RLE Load, Single-Phase

Full Converters with RLE Load, Single-Phase Dual Converters, Principle of operation of Three- Phase duel

Converters.

AC Voltage Controllers: Introduction, Principle of phase control & Integral cycle control, Single-Phase FullWave Controllers with Resistive Loads, Single- Phase Full-Wave Controllers with Inductive Loads, ThreePhase Full-Wave Controllers.

Module-5

DC-DC Converters: Introduction, principle of step down chopper with R and RL load; principle of step up

chopper with R load, Control strategies, performance parameters, DC-DC converter classification.

DC-AC Converters: Introduction, principle of operation single phase bridge inverters, performance

parameters, three phase bridge inverters, voltage control of single phase inverters, Harmonic reductions,

Current source inverters.

Suggested Learning Resources:

Books

1 Power Electronics: Circuits Devices and Applications, Mohammad H Rashid, Pearson 4th Edition, 2014.

Reference Books

1 Power Electronics, P.S. Bimbhra, Khanna Publishers, 5th Edition, 2012.

2 Power Electronics: Converters, Applications and Design, Ned Mohan et al, Wiley 3rd Edition, 2014.

3 Power Electronics, Daniel W Hart, McGraw Hill, 1st Edition, 2011.

4 Elements of Power Electronics, Philip T Krein, Oxford, Indian Edition, 2008.