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Unit - 1 Study Of Power Devices

Unit 1

Study of Power Devices

1.1 Construction

1.2 VI characteristics input output and transfer if any

1.3 Switching characteristics of SCR

1.4 GTO

1.5 Power MOSFET

1.6 IGBT

1.7 Performance overview of Silicon Silicon Carbide GaN based MOSFET and IGBT

1.8 Various repetitive and nonrepetitive ratings of SCR

1.9 Power MOSFET IGBT and their significance

1.10 Requirement of a typical triggering driver such as opto isolator circuits for various power devices

1.11 Importance of series and parallel operations of various power devices

Unit - 2 AC To DC Power Converters

Unit 2

AC to DC Power Converters

2.1 Concept of line and forced commutation

2.2 Single phase Semi Full converters using SCR for R and RL loads and its performance analysis and numerical

2.3 Effect of source inductance

2.4 Significance of power factor and its improvement using PWM based techniques

2.5 Three phase Full converters using SCR for R load and its performance analysis

2.6 Single Phase PWM Rectifier using IGBT

2.7 Three Phase Controlled Rectifier Using IGBT

2.8 Difference between SCR based conventional rectifiers and IGBT based rectifiers

Unit - 3 DC To AC Converters

Unit 3

DC to AC Converters

3.1 Single phase half and full bridge square wave inverter for R and RL load using MOSFET IGBT and its performance analysis and numerical

3.2 Cross conduction in inverter

3.3 Need of voltage control and strategies in inverters

3.4 Classifications of voltage control techniques

3.5 Control of voltage using various PWM techniques and their advantages

3.6 Concept and need of harmonic elimination reduction in inverters

3.7 Three Phase voltage source inverter for balanced star R load with 120 and 180 degree mode of operation

3.8 Device utilization factor

3.9 Advanced Converters like matrix inverter multilevel inverters and their topologies and its driver circuits no derivation and numerical

Unit - 4 DC To DC Converters

Unit 4

DC to DC converters

4.1 Classification of choppers

4.2 Step down chopper for R and RL load and its performance analysis

4.3 Step up chopper

4.4 Various control strategies for choppers

4.5 Types of choppers isolated and non isolated such as type A B C D E

4.6 Switch mode power supply SMPS viz buck boost and buckboost

4.7 Fly back Half and full Bridge isolated and nonisolated interleaved bidirectional topologies

4.8 Concept of integrated converter and design of LM3524 based choppers

4.9 Concept of maximum power point tracking MPPT

Unit - 5 Power Devices Protection And Circuits

Unit 5

Power Devices Protection and Circuits

5.1 Over voltage

5.2 Over current

5.3 didt and dvdt protection circuits and their design

5.4 Various cooling techniques and heat sink design

5.5 Resonant converters such as Zero current switching ZCS and Zero voltage switching ZVS

5.6 Electromagnetic interference such as radiated and conducted EMI

5.7 Difference between EMI and EMC

5.8 EMI sources and soft switching and minimizing shielding techniques for EMI

5.9 Various EMI and EMC standards

5.10 Importance of isolation transformer

Unit - 6 Power Electronics Applications

Unit 6

Power Electronics Applications

6.1 AC Voltage Controller using IGBT SCR

6.2 Fan Regulator

6.3 Electronic Ballast

6.4 LED Lamp driver

6.5 DC motor drive for single phase separately excited dc motor

6.6 BLDC motor drive

6.7 Variable voltage variable frequency three phase induction motor drive

6.8 Online and Off line UPS

6.9 Study of various selection criteria and performance parameters of batteries in battery operated power systems

6.10 Battery charging models and modes for EVs

6.11 Architecture of EVs battery charger

6.12 PFC stage circuit topologies with details of Fullbridge boost rectifier and Fullbridge interleaved for EV battery charger

6.13 Case study of power electronics in electric vehicle and photovoltaic solar system

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Other Subjects of third-year
Cellular networks
Integrated circuits
Digital communication
Linear control systems
Digital signal processing
Computer networks and security
Microprocessors & microcontrollers
Electronics instruments and measurement
Probability theory and stochastic processes
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