Table of Contents
Preface 11
1 Introduction 13
1.1 Power Semiconductor Devices 14
1.2 Power Conversion 14
1.3 Passive Components 16
1.4 Parameters and Analysis of Waveforms 17
1.5 Ideal Power Device 17
1.6 Practical Device 18
1.7 Sources of Information 19
Selected Bibliography 19
2 Diode 21
2.1 Ideal Characteristic of a Diode 21
2.2 Simple Diode Model 21
2.3 Diode Model 23
2.4 Power Dissipation 25
2.5 Free-Wheeling Diode (Fly-Wheel) 26
2.6 Zener Diode 27
2.7 Schoctky Diode 28
Selected Bibliography 28
3 Thyristor 29
3.1 Gate Isolation Circuit 31
3.2 Snubber 32
3.3 Natural Commutation 33
3.4 Single-Phase AC Supply with Single-Gate Pulse Applied to a Thyristor and Resistive Load 33
3.5 Single-Phase Supply with Single-Gate Pulse Applied to a Thyristor and Inductance Load 36
3.6 Forced Commutation 41
3.7 Triac 42
3.8 Gate Turn-Off Thyristors 42
Selected Bibliography 44
4 Transistors 45
4.1 Safe Operating Area 45
4.2 Snubber 47
4.3 Metal Oxide Semiconductor Field Effect Transistor 52
4.4 Insulated Gate Bipolar Transistor 56
4.5 Guide to Power Level and Frequency 58
Selected Bibliography 58
5 Heating and Cooling 59
5.1 Thermal Resistance 59
5.2 Equivalent Circuit 60
5.3 Transient Thermal Resistance 61
Selected Bibliography 63
6 Phase-Controlled Thyristor Converters and Diode Rectifiers 65
6.1 Phase-Controlled AC Thyristor Converter 65
6.2 Single-Phase Converter 67
6.3 Three-Phase Converter 70
6.4 Overlap 77
6.5 Inversion 81
6.6 Power Systems 82
6.7 DC Motor Drive 84
Selected Bibliography 86
7 Cycloconverter 87
7.1 Single-Phase Cycloconverter 87
7.2 Three-Phase Cycloconverter 91
8 Inverter 93
8.1 Single-Phase Inverter 93
8.2 Three-Phase Inverter 93
9 DC-to-DC Converters 99
9.1 Inductive Load 99
9.2 DC Machine 103
9.3 Regeneration 110
9.4 Step-Up and Step-Down DC-to-DC Converters 112
9.5 Step-Down (Buck) Converter 112
9.6 Step-Up (Boost) Converter 120
Selected Bibliography 128
10 Systems and Methods 129
10.1 Logic Switching 129
10.2 Defibrillator and Transcranial Magnetic Stimulator 130
10.3 Synchronization to an AC Supply 135
10.4 Measurement of Current and Voltage 141
10.5 Lowpass Filter 144
10.6 Circuit Protection 145
10.7 Fourier Series 147
10.8 AC Line Transient Suppression 150
10.9 Efficiency of DC Converters 150
10.10 Chaotic Behavior in Diode Circuits 153
Reference 156
Selected Bibliography 156
11 Examples 157
Example 11.1 157
Example 11.2 158
Example 11.3 160
Example 11.4 160
Example 11.5 162
Example 11.6 164
Example 11.7 165
Example 11.8 166
Example 11.9 167
Example 11.10 169
Example 11.11 171
Example 11.12 177
Example 11.13 185
Example 11.14 188
Comment on the Fourier Series Examples 190
List of Symbols 191
About the Author 195
Index 197
