All Materials regarding to B.tech R-20 in Electrical and Electronics Engineering 3rd Year 1st Semester with unit wise for Every Subjects are available.
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| EEE 3-1 Power Electronics | ||
|---|---|---|
| S.No | Chapters / Units | Download Link |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download Part B |
| 4 | Unit 4 | Download |
| 5 | Unit 5 | Download |
Eee 3-1 Power Electronics Important Topics
UNIT – I
Power Semi-Conductor Devices
Silicon controlled rectifier (SCR) – Two transistor analogy - Static and Dynamic characteristics – Turn
on and Turn off Methods - Triggering Methods (R, RC and UJT) – Snubber circuit design.
Static and Dynamic Characteristics of Power MOSFET and Power IGBT– Gate Driver Circuits for
Power MOSFET and IGBT - Numerical problems.
UNIT – II
Single-phase AC-DC Converters
Single-phase half-wave controlled rectifiers - R and RL loads with and without freewheeling diode -
Single-phase fully controlled mid-point and bridge converter with R load, RL load and RLE load -
Continuous and Discontinuous conduction - Effect of source inductance in Single-phase fully controlled
bridge rectifier – Expression for output voltages – Single-phase Semi-Converter with R load-RL load and
RLE load – Continuous and Discontinuous conduction - Harmonic Analysis – Dual converter and its
mode of operation - Numerical Problems.
UNIT – III
Three-phase AC-DC Converters & AC – AC Converters
Three-phase half-wave Rectifier with R and RL load - Three-phase fully controlled rectifier with R and
RL load - Three-phase semi converter with R and RL load - Expression for Output Voltage - Harmonic
Analysis - Three-phase Dual Converters - Numerical Problems.
Single-phase AC-AC power control by phase control with R and RL loads - Expression for rms output
voltage – Single-phase step down and step up Cycloconverter - Numerical Problems.
UNIT – IV
DC–DC Converters
Operation of Basic Chopper – Analysis of Buck, Boost and Buck-Boost converters in Continuous
Conduction Mode (CCM) and Discontinuous Conduction Modes (DCM) - Output voltage equations
using volt-sec balance in CCM & DCM – Expressions for output voltage ripple and inductor current
ripple – control techniques – Introduction to PWM control -Numerical Problems.
UNIT – V
DC–AC Converters
Introduction - Single-phase half-bridge and full-bridge inverters with R and RL loads – Phase
Displacement Control – PWM with bipolar voltage switching, PWM with unipolar voltage switching -
Three-phase square wave inverters - 1200
conduction and 1800
conduction modes of operation -
Sinusoidal Pulse Width Modulation - Current Source Inverter (CSI) - Numerical Problems.
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