EE2301 POWER ELECTRONICS
AIMLearning how to apply the electronic devices for conversion, control and conditioning of
OBJECTIVES To get an overview of different types of power semi-conductor devices and their switching
To understand the operation, characteristics and performance parameters of controlled
To study the operation, switching techniques and basic topologics of DC-DC switching
To learn the different modulation techniques of pulse width modulated inverters and to
understand the harmonic reduction methods.
To study the operation of AC voltage controller and Matrix converters.
To study simple applications
UNIT I POWER SEMI-CONDUCTOR DEVICESStudy of switching devices, - Frame, Driver and snubber circuit of SCR, TRIAC,
BJT, IGBT, MOSFET,- Turn-on and turn-off characteristics, switching losses, Commutation circuits
UNIT II PHASE-CONTROLLED CONVERTERS2-pulse, 3-pulse and 6-pulse converters – Effect of source inductance – performance parameters –
Reactive power control of cnverters – Dual converters - Battery charger.
UNIT III DC TO DC CONVERTERStep-down and step-up chopper - Time ratio control and current limit control – Buck, boost, buckboost
converter, concept of Resonant switching - SMPS.
UNIT IV INVERTERSSingle phase and three phase (both 1200 mode and 1800 mode) inverters - PWM techniques:
Sinusoidal PWM, modified sinusoidal PWM - multiple PWM – Introduction to space vector
modulations - Voltage and harmonic control - Series resonant inverter - Current source inverter.
UNIT V AC TO AC CONVERTERSSingle phase AC voltage controllers – Multistage sequence control - single and three phase
cycloconverters –Introduction to Integral cycle control, Power factor control and Matrix converters.
TOTAL : 45 PERIODS
TEXT BOOKS1. M.H. Rashid, ‘Power Electronics: Circuits, Devices and Applications’,
Pearson Education, PHI Third edition, New Delhi 2004.
2. Philip T.Krein, “Elements of Power Electronics” Oxford University Press, 2004 Edition.
REFERENCES1. Ashfaq Ahmed Power Electronics for Technology Pearson Education, Indian reprint, 2003.
2. P.S.Bimbra “Power Electronics” Khanna Publishers, third Edition 2003.
3. Ned Mohan, Tore.M.Undeland, William.P.Robbins, ‘Power Electronics: Converters, Applications
and Design’, John Wiley and sons, third edition, 2003.