Power Electronics Full Scanned Lecture Notes - 2015 Edition

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Power Electronics Full Hand Written Lecture Notes from Reputed Institutions and Faculties. Useful for Electrical Engineers , Specially for Candidates Appearing for GATE Exams.

Content :

• Power semiconductor devices
  1. Power Diode2. V-I characteristic of power diode3. Significant of drift region
  
• SCR ( silicon controlled rectifier )
  
• Forward blocking mode
  
• Forward conducting mode
  
• Significance of gate
  
• Reverse blocking mode
  
• Significance of latching current
  
• Significance of holding current
  
• Definitions of holding current 
  
• Switching characteristic of SCR (  or) Dynamic characteristic 
  
• Triggering method of SCR
  a. Forward voltage triggering methodb. Dv/ dt triggeringc. Light triggeringd. Thermal triggeringe. Gate triggering
  
• Commutation techniques
  a. Natural commutationb. Forced commutation
  
• Classification of commutation techniques
  a. Class A Commutation techniqueb. Class B Current commutationc. Class C Complementary commutation / impulsed. Class D Voltage commutation
  
• Firing circuit
  
• Gate turn on Voltage
  
• UJT ( Unijunction transistor )
  1. UJT : Working as relaxation oscillator2. Synchronized UJT firing CKT
  
• Protection of Thyristors
  1. Over Current protection 2. Over voltage protection3. Dv/dt protection4. Dia/dt protection5. Thermal protection6. Gate protectionSome special device
  
• GTO (Gate turn off Thyristor )
  
• ASCR ( Asymmetrical silicon controlled rectifier )
  
• RCT ( Reverse conducting Thyristors )
  
• TRIAC
  
• TRIAC firing CKT using a DIAC
  
• Power BJT
  
• Characteristic of power BJT
  
• Power MOSFET
  
• Ø HWR - One Pulse Converter
  
• RE load ( Charging Battery )
  
• 1-Ø FWR ( 2- pulse converter )
  
• 1-ø Half controlled rectifier
  
• Semi converter
  
• Harmonic analysis on AC side of converters
  
• Harmonic analysis on DC side of converters
  
• Performance of semi conductors
  
• Draw backs
  
• Three phase semi conductors
  
• Representation of converters
  
• Application
  
• Dual converters
  1. Non-circulating current type2. Circulating current type dual converters
  
• Effect of source inductance
  
• Inductance voltage regulation
  
• INVERTERS
  
• Classification of inverters
  1. Voltage source inverters
  
• a. Single phase half bridge inverters
  
• b. Two phase full bridge inverters
  
• c. Three phase VSI
  2. Current source inverters3. Series inverters4. Parallel inverters
  
• Harmonic analysis
  
• Draw backs
  
• Rating of thyristors
  
• Current source inverters (CSI)
  
• Harmonic analysis
  
• Advantage of CSI
  
• Disadvantage
  
• Auto sequential commutation inverters (ASCI)
  
• Series inverters
  
• Resonant converters
  
• Voltage control of inverters
  
• Types
  
• Advantages
  
• Disadvantages
  
• Application
  
• Types of PWM techniques
  
• CHOPPERS
  
• Stepdown choppers
  
• RLE loads
  
• Duty cycle
  
• Step up choppers
  
• CHOPPERS WITH FILTERS
  
• Buck regulators
  
• Critical inductance
  
• Critical capacitance
  
• BOOST regulators
  
• BUCK regulators
  
• BUCK-BOOST regulators
  
• Classification
  
• 1. First quardrant chopper
  
• 2. Second quardrant choppers
  
• AC voltage controllers
  
• Application
  
• Drawbacks
  
• Cycloconverters
  
• AC drives
  
• Slip power recovery method
  
• Scherbius drive
  
• Application
  
• Features
  
• HVDC
  
• Types of HVDC
  
• SMPS
  

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