- Introduction to Power Electronics
- Ideal and Practical Switch
- Types of switches
- Numerical 1 on Types of Switches
- Numerical 2 on Types of Switches
- PN Junction Diode- construction and formation of depletion layer
- Biasing of PN Junction Diode
- V-I Characteristic of Diode
- Numerical 1 on Diode
- SCR- Construction
- Forward Biasing of SCR
- Reverse Biasing of SCR
- Static V-I Characteristic of SCR
- Numerical 1 on Static V-ICharacteristic of SCR
- Numerical 2 on Static V-I Characteristic of SCR
- Dynamic Characteristic of SCR during Turn ON
- Dynamic Characterstic of SCR during Turn OFF
- Numerical 1 on Dynamic Characteristics of SCR
- Numerical 2 on Dynamic Characteristics of SCR
- GATE Characteristics of SCR
- Numerical 1 on GATE characteristic of SCR
- Numerical 2 on GATE characteristic of SCR
- Numerical 3 on GATE characteristic of SCR
- Two Transistor Analogy of SCR: Anode current derivation
- Two Transistor Analogy of SCR: Physical Significance
- Numerical 1 on Two Transistor Analogy of SCR
- Turn ON methods of SCR: Forward Voltage Triggering and GATE Triggering
- dV/dt Triggering
- Temperature and Light Triggering
- Protection of SCR: Over Voltage & Over Current Protection
- Protection of SCR: High dV/dt and High di/dt Protection
- GATE Protection of SCR
- Numerical 1 on Protection of SCR
- Commutation Procedure and Types of Commutation
- Natural Commutation
- Class A Commutation for Low Load Resistor
- Class A Commutation for High Load Resistor
- Numerical 1 on Class A commutation
- Class B Commutation: Circuit Operation
- Class B Commutation: Derivation
- Numerical 1 on Class B commutation
- Numerical 2 on Class B commutation
- Class C Commutation: Circuit Operation
- Class C Commutation: Derivation
- Numerical 1 on Class C commutation
- Numerical 2 on Class C commutation
- Class D Commutation: Circuit Operation
- Class D Commutation: Derivation
- Class E Commutation
- Thermal Modelling of SCR
- Numerical 1 on Thermal Modelling of SCR
- Numerical 2 on Thermal Modelling of SCR
- Numerical 3 on Thermal Modelling of SCR
- Series Operation of SCR
- Parallel Operation of SCR
- Numerical 1 on Series and Parallel operation of SCR
- Numerical 2 on Series and Parallel operation of SCR
- Numerical 1 on Diode and SCR combination
- Numerical 2 on SCR
- Power MOSFET: Construction, Symbol and V-I Characteristic
- Numerical 1 on Power MOSFET
- Numerical 2 on Power MOSFET
- Insulated GATE Bipolar Transistor: Construction, Symbol and V-I Characteristic
- DIAC: Construction, Symbol and V-I Characteristic
- TRIAC
- Numerical 1 on switch combination
- Numerical 2 on switch combination

- Rectifier-Introduction
- Single Phase Half Wave Unconrolled Rectifier with R Load: Circuit Operation
- Single Phase Half Wave Unconrolled Rectifier with R Load: Derivations
- Single Phase Half Wave Unconrolled Rectifier with RL Load: Circuit Operation
- Single Phase Half Wave Unconrolled Rectifier with RL Load: Derivations
- Single Phase Half Wave Uncontrolled Rectifier with RL load & Free-wheeling Diode- Circuit Operation
- Single Phase Half Wave Uncontrolled Rectifier with RL load & Free-wheeling Diode- Derivations
- Single Phase Half Wave Unconrolled Rectifier with RE Load: Circuit Operation
- Single Phase Half Wave Unconrolled Rectifier with RE Load: Derivations
- Single Phase Half Wave Unconrolled Rectifier with RLE Load: Circuit Operation
- Single Phase Half Wave Unconrolled Rectifier with RLE Load: Derivations
- Single Phase Half Wave Conrolled Rectifier with R Load: Circuit Operation
- Single Phase Half Wave Conrolled Rectifier with R Load: Derivations
- Single Phase Half Wave Conrolled Rectifier with RL Load: Circuit Operation
- Single Phase Half Wave Conrolled Rectifier with RL Load: Derivations
- Single Phase Half Wave Conrolled Rectifier RL Load with FWD: Circuit Operation
- Single Phase Half Wave Conrolled Rectifier RL Load with FWD: Derivation
- Single Phase Half Wave Conrolled Rectifier with RE Load: Circuit Operation
- Single Phase Half Wave Conrolled Rectifier with RE Load: Derivations
- Single Phase Half Wave Conrolled Rectifier with RLE Load: Circuit Operation
- Single Phase Half Wave Conrolled Rectifier with RLE Load: Derivations
- Numerical 1 on Single Phase Half Wave Controlled Rectifier
- Numerical 2 on Single Phase Half Wave Controlled Rectifier
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion with R load- Circuit Operation
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion with R load- Derivations
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion with RL load- Circuit Operation
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion with RL load- Derivations
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion RL load with FWD- Circuit Operation
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion RL load with FWD- Derivations
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion RE load- Circuit Operation
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion RE load- Derivations
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion RLE load- Circuit Operation
- Single Phase Full Wave Controlled Rectifier: Mid Point Tapped Transformer Configuraion RLE load- Derivations
- Numerical on Mid Point Tapped Transformer Configuration
- Single Phase Fully Controlled Bridge Rectifier with R load: Circuit Operation
- Single Phase Fully Controlled Bridge Rectifier with R load: Derivations
- Single Phase Fully Controlled Bridge Rectifier with RL load: Circuit Operation
- Single Phase Fully Controlled Bridge Rectifier with RL load: Derivations
- Single Phase Fully Controlled Bridge Rectifier RL load with FWD: Circuit Operation
- Single Phase Fully Controlled Bridge Rectifier RL load with FWD: Derivations
- Single Phase Fully Controlled Bridge Rectifier with RE load: Circuit Operation
- Single Phase Fully Controlled Bridge Rectifier with RE load: Derivations
- Single Phase Fully Controlled Bridge Rectifier with RLE load: Circuit Operation
- Single Phase Fully Controlled Bridge Rectifier with RLE load: Derivations
- Single Phase Half Controlled Rectifier: Symmetrical Configuration with R load
- Single Phase Half Controlled Rectifier: Symmetrical Configuration with RL load
- Single Phase Half Controlled Rectifier: Asymmetrical Configuration with R load
- Single Phase Half Controlled Rectifier: Asymmetrical Configuration with RL load
- Input Power Factor for RL and RLE load: Part-I
- Input Power Factor for RL and RLE load: Part-II
- Input Power Factor for RL and RLE load: Part-III
- Numerical 1 on Single Phase Controlled Rectifiers
- Numerical 2 on Single Phase Controlled Rectifiers
- Numerical 3 on Single Phase Controlled Rectifiers
- Numerical 4 & 5 on Single Phase Controlled Rectifiers
- Numerical 6 on Single Phase Controlled Rectifiers
- Numerical 7 on Single Phase Controlled Rectifiers
- Numerical 8 on Single Phase Controlled Rectifiers
- Numerical 9 on Single Phase Controlled Rectifiers
- Three Phase Half Wave Controlled Rectifier with R load: Part-I
- Three Phase Half Wave Controlled Rectifier with R load: Part-II
- Three Phase Half Wave Controlled Rectifier with R load: Part-III
- Three Phase Half Wave Controlled Rectifier with R load: Part-IV
- Three Phase Half Wave Controlled Rectifier with R load: Part-V
- Three Phase Half Wave Controlled Rectifier with RL load: Part-I
- Three Phase Half Wave Controlled Rectifier with RL load: Part-II
- Three Phase Full Wave Controlled Rectifier with R load: Part-I
- Three Phase Full Wave Controlled Rectifier with R load: Part-II
- Three Phase Full Wave Controlled Rectifier with R load: Part-III
- Three Phase Full Wave Controlled Rectifier with R load: Part-IV
- Three Phase Full Wave Controlled Rectifier with R load: Part-V
- Three Phase Full Wave Controlled Rectifier with RL load
- Numerical 1 on Three Phase Controlled Rectifiers
- Numerical 2 on Three Phase Controlled Rectifiers
- Numerical 3 on Three Phase Controlled Rectifiers
- Numerical 4 on Three Phase Controlled Rectifiers
- Effect of Source Inductance in Single Phase Rectifiers: Circuit Operation
- Effect of Source Inductance in Single Phase Rectifiers: Derivation

- Types of Inverters
- Single Phase Half Bridge Inverter with R Load- Circuit Operation
- Fourier Series Analysis of Output Voltage & Current of single phase Half Bridge Inverter With R load
- Harmonic Contents in Output Voltage of single phase Half Bridge Inverter With R load
- Single Phase Half Bridge Inverter with RL Load- Circuit Operation
- Fourier Series Analysis of Output Voltage & Curent of single phase Half Bridge Inverter With RL load
- Single Phase Full Bridge Inverter with R Load- Circuit Operation
- Fourier Series Analysis of Output Voltage & Current of single phase Full Bridge Inverter With R load
- Harmonic Contents in Output Voltage of single phase Full Bridge Inverter With R load
- Single Phase Full Bridge Inverter with RL load
- Fourier Series Analysis of Output Voltage & Curent of single phase Full Bridge Inverter With RL load
- Numerical 1 on Single Phase Full Bridge Inverter
- Numerical 2 on Single Phase Full Bridge Inverter
- Numerical 3 on Single Phase Full Bridge Inverter
- Numerical 4 on Single Phase Full Bridge Inverter
- Numerical 5 on Single Phase Full Bridge Inverter
- Performance Parameters of Inverters
- Numerical on Performance Parameters of Inverters
- Voltage control in Inverters: External Control and Series Inverter Control
- Voltage control in Inverters: Single Pulse Width Modulation Technique
- Single Pulse Width Modulation Technique: Fourier Series Analysis
- Single Pulse Width Modulation Technique: Harmonic Content in output voltage
- Multiple Pulse Width Modulation Technique: Operation
- Multiple Pulse Width Modulation Technique: Derivations
- Numerical 1 on Pulse Width Modulation Technique
- Numerical 2 on Pulse Width Modulation Technique
- Numerical 3 on Pulse Width Modulation Technique
- Numerical 4 on Pulse Width Modulation Technique
- Bipolar Sinusoidal Pulse Width Modulation
- Unipolar Sinusoidal Pulse Width Modulation
- Numerical on Sinusoidal Pulse Width Modulation
- Harmonic Reduction in Inverter
- Harmonic Reduction by Transformer Connection
- Harmonic Reduction by stepped wave invereter
- Three Phase Inverters: 180 degree mode- Circuit diagram and operation
- 180 degree conduction mode- Interval I, II and III
- 180 degree conduction mode- Interval IV, V and VI
- 180 degree conduction mode- derivations
- 180 degree conduction mode: Fourier series analysis of Output Voltage- Part-I
- 180 degree conduction mode: Fourier series analysis of Output Voltage- Part-II
- Three Phase Inverters: 120 degree mode- Circuit diagram and operation
- 120 degree conduction mode- Interval I, II and III
- 120 degree conduction mode- Interval IV, V and VI
- Numerical 1 on Three Phase Inverters
- Numerical 2 on Three Phase Inverters
- Numerical 3 on Three Phase Inverters
- Current Source Inverter

- Introduction to Chopper
- Step Down Chopper
- Buck Converter: Part-I
- Buck Converter: Part-II
- Buck Converter: Part-III
- Buck Converter: Part-IV
- Buck Converter: Part-V
- Numerical 1 on Buck Converter
- Numerical 2 on Buck Converter
- Numerical 3 on Buck Converter
- Buck Converter: Discontinuous Conduction
- Boost Converter: Part-I
- Boost Converter: Part-II
- Boost Converter: Part-III
- Numerical 1 on Boost Converter
- Numerical 2 on Boost Converter
- Numerical 3 on Boost Converter
- Boost Converter: Discontinuous Conduction
- Buck-Boost Converter: Part-I
- Buck-Boost Converter: Part-II
- Buck-Boost Converter: Part-III
- Numerical 1 on Buck-Boost Converter
- Numerical 2 on Buck-Boost Converter
- Numerical 3 on Buck-Boost Converter
- Buck Boost Converter: Discontinuous Conduction
- Type A, B and C Choppers
- Type D & E Choppers
- Numerical 1 on Types of Choppers

- Single Phase Half Wave AC Voltage Controller with R Load
- Single Phase Half Wave AC Voltage Controller with RL Load
- Single Phase Full Wave AC Voltage Controller with RL load
- Single Phase Full Wave AC Voltage Controller with RL load
- Integral Cycle Control Method
- Numerical 1 on AC voltage controller
- Numerical 2 on AC voltage controller
- Numerical 3 on AC voltage controller

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Professor Rajendra Gharase received his degree in M.Tech from the Indian Institute of Science, Bangalore in 2010. He has completed B.E. Electrical Engg. from Govt. College of Engg. in 2007 with a proficiency of 10 plus years of teaching experience. His major potential subjects are Electrical Engineering, Power Electronics, and Electrical Measurements etc. His major achievements are securing India 7th rank in the GATE examination. He has trained 5000+ engineering students for various competitive exams like GATE, IES/ESE etc under this experience and guidance of so many years. His teaching motto is to Explain concepts with the help of real-life examples. He quotes by saying "My philosophy is to teach my students HOW to study, HOW to maintain focus, and HOW to ask the right questions. With those tools at their fingertips, they will be able to achieve so much more". With his incredible on-field experience of successful teaching and development, he ensures on providing the best knowledge of his expertise.

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