Contents

• 1. Power Semiconductor Devices

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  Objectives, Introduction, Power Diodes, Static V-I Characteristics, Reverse Recovery Characteristics, Types of Power Diodes, Power Transistor, Input Characteristics, Output Characteristics, Switching Characteristics, Thyristor, Static V-I Characteristics, Switching Characteristics, Power MOSFET, Output Characteristics, Transfer Characteristic, Switching Characteristics, IGBT (Insulated Gate Bipolar Transistor), V-I Characteristics, Transfer Characteristic, Switching Characteristics, GTO (Gate Turn Off), Static V-I Characteristics, Switching Characteristics, Diac, V-I Characteristics, Triac, V-I Characteristics, MOS Controlled Thyristor (MCT), V-I Characteristics, Switching Charactetistics, Two Transistor Model of Thyristor, Gate Triggering, Forward Voltage Triggering, dv/dt Triggering, Temperature Triggering, Light Triggering, Thyristor Terminology, Thyristor Commulation Methods, Natural Commutation, Forced Commutation, Solved Examples, Multiple Choice Questions, Solution of Multiple Choice Questions, Review Questions.
   
  2. Silicon Controlled Rectifier (SCR)

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  Objectives, Introduction, Construction, Static V–I Characteristics of SCR, Switching or Dynamic Characteristics of SCR, Switching Characteristics During Turn-On, Switching Characteristics During Turn-Off, Specification and Ratings, Voltage Ratings, Current Ratings, Power Rating, Thermal Rating, Pulse Transformers and Optical Isolators, Pulse Transformer, Optical Isolators, Turn on Methods of SCR, Firing Circuits for SCR, Resistance Firing Circuit, RC Firing Circuit, Unijunction Transistor (UJT), Series and Parallel Operation of SCRs, Series Operation, Parallel Operation, String Efficiency & Derating Factor, Protection of SCR, Overvoltage Protection, Overcurrent Protection, di/dt Protection, dv/dt Protection, Gate Protection, Solved Examples, Multiple Choice Questions, Solution of Multiple Choice Questions, Review Questions.
   
  3. Converters-I

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  Objectives, Introduction, Phase Controlled Converters, Single Phase Half Wave Converter with R-Load, Single-Phase Half Wave Converter with RL Load, Single Phase Half Wave Converter with RL Load and Freewheeling Diode, Single phase Half Wave Controlled Converters with RLE Load, Single Phase Full Wave Controlled Converter, Single Phase Full Wave Mid Point Type Converter, Single Phase Full Wave Bridge Type Converter, Single Phase Full Wave Half Controlled Bridge Converter with RL Load, Single-Phase Full Wave Half Controlled Bridge Converter with RL-Load and FD, Single-Phase Full wave Full Controlled Bridge Converter with RLE-load, Single Phase Full Wave Full Controlled Bridge Converter with RLE-load and FD, Single Phase Dual Converter, Three Phase Half Wave Converter with RL Load, Three Phase Full Wave Converter, Three Phase Dual Converter, Solved Examples, Multiple Choice Questions, Solution of Multiple Choice Questions, Review Questions.
   
  4. Converters-II

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  Objectives, Introduction, Single Phase Semiconverters with RL Load, Single Phase Semiconverter with Constant Load Current, Single Phase Semiconverter with Freewheeling Diode, Three Phase Semiconverter with RL Load, Power Factor Improvement, Extinction Angle Control, Symmetrical Angle Control, Pules width Modulation Control, Sinusoidal Pulse width Modulation, Effect of Load and Source Impedances, Single Phase Full Converter, Three Phase Full Converter, Solved Examples, Multiple Choice Questions, Review Questions.
   
  5. Chopper

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  Objectives, Introduction, Principle of Chopper Operation, Step Down Chopper, Step up Chopper, Chopper Configuration, First Quadrant or Class A Chopper, Second Quadrant or Class B Chopper, Two Quadrant type A Chopper or Class C Chopper, Two Quadrant Type B Chopper or Class D Chopper, Four Quadrant Chopper or Class E Chopper, Switched Mode Regulators, Buck Regulators, Boost Regulators, Buck-Boost Regulators, CUK Regulators, Voltage Commutated Chopper, Current Commutated Chopper, Load Commutated Chopper, Multiphase Choppers, Solved Examples, Multiple Choice Questions, Solution of Multiple Choice Questions, Review Questions.
   
  P. Papers