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Thursday, May 16, 2019

Lecture Notes on Power Electronics (Free PDF)


File Size: 4.09 Mb

Syllabus:-
MODULE-I (10 HOURS)
Thyristors, Static V-I Characteristics of SCR, TRIAC, GTO & IGBT, Turn-On & Turn-OFF Mechanism of SCR, Gate Turnoff Thyristor (GTO) .Power BJTs . Power MOSFETs - Insulated Gate
Bipolar Transistors (IGBTs) - Basic Structure and VI Characteristics. Static, dynamic and thermal characteristics. Protection, cooling and mounting techniques. Series and Parallel operation of devices.

Triggering and basics of driver circuits. Different types of commutation schemes: Natural and Forced commutation.

MODULE-II (10 HOURS)
1-Phase Half & Full Wave Controlled Rectifier with various kinds of loads (R, R-L-E (motor)). Midpoint and Bridge type converters. Half Controlled and Fully Controlled Bridge circuits, different
waveforms, Input Line Current Harmonics, Power factor, current distortion and displacement factors- Inverter Mode of Operation. Continuous and discontinuous modes, Effect of source inductance
assuming constant load current. Effect of freewheeling diode. Three phase bridge converters for different types of load with constant load current, different waveforms. 180 and 120 degree
operations.

MODULE-III (10 HOURS)
DC-DC Converters: Classification of types of choppers, One, Two and Four quadrant operations, Step up and down choppers, Analysis of Type-A chopper, Single-and two quadrant operation with DC motor load.

AC-AC Converters: Single-phase mid-point and bridge types of step-up and step-down Cycloconverters. Single phase AC Voltage regulators and its basic analysis.

MODULE-IV (10 HOURS)
Single-phase Half and Full bridge Inverter, Pulse Width Modulated (PWM) technique for voltage control, SPWM Technique 1-phase inverters, Auxiliary Commutated (Mc-Murray) and
Complementary Commutated (Mc-Murray Bedford) Inverters, Three-phase Voltage Source Bridge type of Inverters. (120 and 180 Degree conduction modes), Current Source Inverter.

Applications: UPS, SMPS, Induction Heating, Electronic Ballast, AC/DC drives speed control.




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