This book is designed for Undergraduate and Postgraduate students of electrical and electronics engineering and also for the Professionals. The objective of the book is to explain the operations of all important power semiconductor devices such as IGBTs, ETOs, IGCTs, etc., that are used to control power systems and show how the devices are used in appropriate circuit and devices. The author has tried to cover as many applications as possible and give sufficient information which can influence the students and practitioners to move towards the design of programmable power systems.

KEY FEATURES

Extensive use of MATLAB® based examples to provide a better understanding of the subject.
The book employs a pedagogical structure designed to take full advantage of MATLAB and to avoid the pitfalls of a cook-book approach to problem.
solving. Each chapter begins with the essential theory along with related waveforms and then describes the MATLAB programs with their corresponding outputs.
MATLAB codes in the form of m-file are provided with sufficient details to allow the students to repeat the examples on their computers.
More than 35 programs in the text that have been tested and included in a CD under MATLAB 6.5 version or higher.

Contents:
REVIEW: Introduction. Review of Electrical Quantities: Basic Circuit Quantities, Passive Circuit Elements, Basic Series Circuit Poly-phase Circuit,Review of Power Semiconductor. Devices Review of Power Converters. Scope of Power Electronics. Summary

POWER SEMICONDUCTOR DEVICES: Introduction. Power Diodes: General Purpose Diode, Fast Recovery Diode, Schottky Diode, Metal Oxide Semiconductor (MOS) Diode. Power Transistor: Power Bipolar Junction Transistor (BJT), Power Metal Oxide Semiconductor, Field effect transistor (MOSFET), Depletion-type MOSFET, Enhancement-type MOSFET. Thyristors: Shockley Diode, Thyristor (Silicon Controlled Rectifier), Light Activated Silicon Controlled Rectifier (LASCR), Silicon Controlled Switch (SCS), Gate Turn-off Thyristor (GTO), Insulated Gate Bipolar Transistor (IGBT), Metal Oxide Semiconductor Gated Thyristor (MGT), Emitter Turn-off Thyristor (ETO), MOS Turn-off (MTO) Thyristor, Integrated Gate Commutated Thyristor (IGCT). Multilayer Bidirectional Devices: Reverse Conducting Thyristor (RCT), DIAC, TRIAC. Parameters of Power Semiconductor Devices. Fabrication Process. New Trends in Power Semiconductor Devices. Summary. Matlab Programs. Review Problems

TRIGGERING METHODS, DEVICES AND CIRCUITS: Introduction. Turn-on Methods: High Voltage Turn-on, High Temperature Turn-on, dv/dt Turn-on, Light Turn-on, Gate Turn-on. Triggering Devices and their Characteristics: Unijunction Transistor (UJT), Programmable Unijunction Transistor (PUT), Complementary Unijunction Transistor (CUJT), Silicon Unilateral Switch (SUS), Silicon Bilateral Switch (SBS). Gate Control Circuits: Gate Characteristic of a Thyristor. Thyristor Gate Control Circuits: Resistance Firing Circuit, Resistance-capacitance Firing Circuit, UJT Firing Circuit, PUT Firing Circuit, Synchronized UJT Firing Circuit, Pulse Transformer Firing Circuit, Light Activated Firing Circuit. Triac Gate Control Circuits: Diac Firing Circuit, Silicon Bilateral Switch Firing Circuit. GTO Gate Control Circuit. MOSFET and IGBT Gate Control Circuits: High Speed Firing Circuit. IC Based Firing Circuit. Summary. Matlab Programs. Solved Examples. Review Problem

COMMUTATION AND PROTECTION: Introduction. Turn-off Methods: Natural Commutation, Load Commutation, Forced Commutation, Gate Commutation. Commutating Circuits: Voltage Commutation, Current Commutation, Pulse Commutation, Jones Commutation. Protection of Power Semiconductor Devices: Over-voltage Protection, Over-current Protection, Gate Protection Over-temperature Protection. Summary. Review Problems

AC-DC CONVERTERS: DIODE RECTIFIERS: Introduction. Single-phase Rectifiers: Half-wave Rectifier, Half-wave rectifier with resistive load, Half-wave rectifier with resistive-inductive load. Full-wave Rectifier: Centre-tapped full-wave rectifier, Full-wave bridge rectifier, Full-wave bridge rectifier with resistive-inductive load. Three-phase Rectifiers: Three-phase Half-wave Rectifier, Three-phase Centre-tapped Full-wave Rectifier, Three-phase Bridge Rectifier, Three-phase Double-star Rectifier.Three-phase Twelve-pulse Full-wave Bridge Rectifier. Summary. Matlab Programs. SolvedExamples. Review Problems.

AC-DC CONVERTERS: PHASE CONTROLLED RECTIFIERS: Introduction. Half-wave Controlled Rectifiers: Half-wave Controlled Rectifier with Resistive Load, Half-wave Controlled Rectifier with Resistive-inductive Load, Half-wave Controlled Rectifier with Inductive Load and Flywheel Diode, Half-wave Controlled Rectifier with RLE Load. Full-wave Controlled Rectifiers: Mid-point Configuration with Resistive Load, Full-wave Controlled Rectifier with Transformer Leakage Reactance and Load Reactance. Full-wave Controlled Bridge Rectifiers: Fully controlled bridge rectifier, Fully controlled bridge rectifier with flywheel diode, Half-controlled bridge rectifier with resistive load, Half-controlled bridge rectifier with inductive load. Dual Converter. Three-phase Controlled Rectifiers: Three-phase Half-wave Controlled Rectifier, Six-phase Half-wave Controlled Rectifier, Three-phase Fully-controlled Bridge Rectifier, Three-phase Fully-controlled Bridge Rectifier with Source and Load Inductances, Three-phase Half-controlled Bridge Rectifier, Higher Pulse Number Controlled Rectifier. Forced Commutated Controlled Rectifiers (Power Factor Improvement). Extinction Angle Control. Symmetrical Angle Control. Pulse Width Modulation Control. Varying Pulse Width Modulation Control. Summary. Matlab Programs. Solved Examples. Review Problems

DC-AC CONVERTERS: Introduction. Voltage-driven Inverter. Current-driven Inverter. Sine-wave Inverter. Square-wave Inverter: Single-phase Inverters, Centre-tapped load inverter, Centre-tapped supply inverter Bridge inverter, IGBT bridge inverter. Multi-phase Inverters: 180o conduction mode, 120o conduction mode. Control of Inverter Output Voltage: Single-pulse Width Modulation, Multiple-pulse Width Modulation, Sinusoidal-pulse Width Modulation. Current-driven Inverters: Single-phase Current-driven Inverter, Single-phase Auto Sequentially Commutated Current-driven Inverter, Three-phase Current-driven Inverter. Resonant Inverters. Summary. Matlab Programs. Solved Examples. Review Problems

DC-DC CONVERTERS: Introduction. Step-down Chopper. Step-up Chopper. Step-up and Step-down Chopper. Classification of Choppers: Type-A Chopper, Type-B Chopper, Type-C Chopper, Type-D Chopper, Type-E Chopper. DC-DC Switch Mode Regulator: Buck Regulator, Boost Regulator, Buck-boost Regulato, Cuk Regulator, Full-bridge Regulator. DC-DC Switch Mode Regulator with Isolation: Fly Back Regulator, Forward Regulator, Push Pull Regulator Half Bridge Regulator, Full Bridge Regulator. Summary. Matlab Programs. Solved Examples. Review Problems.

AC-AC CONVERTERS: Introduction. On-off AC Voltage Controller. Phase-angle AC Voltage Controller: Single-phase Half-wave Phase Controller, Single-phase Full-wave Phase Controller with Resistive Load, Single-phase Full-wave Phase Controller with Inductive Load. Three-phase Half-wave Phase Controller Three-phase Full-wave Phase Controller. Cycloconverters: Single-phase Cycloconverter, Mid-point cycloconverter, Bridge cycloconverter. Three-phase Cycloconverter: Three-phase to single-phase cycloconverter, Three-phase to three-phase cycloconverter. DC Link Variable Frequency Converter. Cycloinverter. Summary. Matlab Programs. Solved Examples. Review problems

SOME APPLICATIONS: Introduction. Solid-state Switches: Static Switch Using a Thyristor, Static Switch Using a Triac, DC Static Switch, Solid-state Relays. Light Dimmer. Electronic Timer. Electronic Alarm using SCS. Electronic Crowbar. Battery Charger: Battery Charging Regulator, Emergency Lighting System. Sawtooth Generator: Sawtooth Generator Using a Shockley Diode, Sawtooth Generator Using a GTO. Applications in Industrial Process Control: Temperature Control, Liquid-level Control, Alarm Actuator, Ambient-light Control Power Switch, Constant Slope Ramp Generator, High Frequency Welding System. Power Supply: Linear Power Supply, Switch-mode Power Supply (SMPS), Uninterrupted Power Supply (UPS). Programmable Power Electronic Systems: Microprocessor Based, Microcontroller Based, DSP Based. Fuzzy Logic Control: Fuzzy Logic Control of a DC Motor Drive, Fuzzy Logic Control of an Induction Motor, Fuzzy Logic Control of a Stepper Motor. Summary. Matlab Programs. Review Problems

Appendices: Fourier Series. Device Temperature Control and Heat Sink. Specifications of Power Semiconductor Devices. Safe Operating Area of Power Semiconductor Devices. Circuit Breakers F Device Testing