Gerry Moschopoulos

DC-DC Converter Topologies (eBook, ePUB)

Basic to Advanced

• Format: ePub

Produktbeschreibung

DC-DC Converter Topologies A comprehensive look at DC-DC converters and advanced power converter topologies for all skills levels As it can be rare for source voltage to meet the requirements of a Direct Current (DC) load, DC-DC converters are essential to access service. DC-DC power converters employ power semiconductor devices (like MOSFETs and IGBTs) as switches and passive elements such as capacitors, inductors, and transformers to alter the voltage provided by a DC source into the necessary DC voltage as is required by a DC load. This source can be a battery, solar panels, fuel cells, or a DC bus voltage fed by rectified AC utility voltage. As the many components of DC-DC converters can be differently arranged into circuit structures called topologies, there are as many possible circuit topologies as there are possible combinations of circuit elements. Focusing on DC-DC switch-mode power converters ranging from 50 W to 10kW, DC-DC Converter Topologies provides a survey of all converter topology types within this power range. General principles are described for each topology type using a representative converter as an example. Variations that can be found that differ from the example are then examined, with a helpful discussion of comparisons when relevant. A broad range of topics is covered within the book, from simple, low-power converters to complex, high-power converters and everywhere in between. DC-DC Converter Topologies readers will also find: * A detailed discussion of four key DC-DC converter topologies * Description of isolated two-switch pulse-width modulated (PWM) topologies including push-pull, half-bridge, and interleaved converters * An exploration of high-gain converters such as coupled inductors, voltage multipliers, and switched capacitor converters This book provides the tools so that a non-expert will be equipped to deal with the vast array of DC-DC converters that presently exist. As such, DC-DC Converter Topologies is a useful reference for electrical engineers, professors, and graduate students studying in the field.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 464
• Erscheinungstermin: 18. Dezember 2023
• Englisch
• ISBN-13: 9781119612520
• Artikelnr.: 69861702

Autorenporträt

Gerry Moschopoulos, PhD, is a Professor at Western University, London, ON, Canada and is a Registered Professional Engineer in the province of Ontario.

Inhaltsangabe

About the Author xv

Preface xvi

1 Basic Concepts 1

1.1 Linear Voltage Regulators 1

1.2 Switch-Mode Power Supply Fundamentals 3

1.2.1 Buck Converter 3

1.2.2 Boost Converter 5

1.2.3 Buck-Boost Converter 6

1.3 PWM Converters with Voltage Step-Up and Step-Down Capabilities 8

1.3.1 Cuk Converter 8

1.3.2 Single-Ended Primary Inductance Converter (SEPIC) 9

1.3.3 Zeta Converter 10

1.3.4 Comparison Between Converters with Voltage Step-Up and Step-Down Capabilities 10

1.4 Interleaved Converters 12

1.5 Semiconductor Devices 14

1.5.1 Silicon Diodes 14

1.5.2 Silicon MOSFETs 15

1.5.3 Silicon IGBTs 17

1.5.4 Gate Drive Circuits 18

1.5.5 Wide Bandgap Devices 19

1.6 Snubbers 21

1.7 Conclusion 23

References 23

2 Non-isolated Zero-voltage Switching PWM Converters 25

2.1 Basic ZVS Principles for MOSFETS 26

2.2 ZVS-PWM Quasi-Square-Wave DC-DC Converters 28

2.3 ZVS-PWM DC-DC Converters with Auxiliary Circuits 30

2.3.1 Nonresonant Auxiliary Circuits 31

2.3.2 Resonant Auxiliary Circuits 37

2.3.3 Dual Auxiliary Circuits 40

2.4 Miscellaneous Considerations 42

2.4.1 Application-Specific ZVS-PWM Converters 42

2.4.2 ZVS-PWM Techniques in Converters with Wide Bandgap Devices 43

2.5 Conclusion 44

References 45

3 Non-isolated Zero-current Switching PWM Converters 46

3.1 ZCS-PWM Converters with Series-Resonant Auxiliary Circuits 47

3.1.1 ZCS-PWM Converter with Fully Resonant Auxiliary Circuit 48

3.1.2 ZCS-PWM Converter with Modified Resonant Auxiliary Circuit 51

3.1.3 Converter with Hard-Switching Auxiliary Circuit 51

3.2 ZCS-PWM Boost Converters with Conventional PWM Converter Main Switch Current Stress 52

3.2.1 ZCS-PWM Converter with Series Boost Diode 52

3.2.2 ZCS-PWM Converter with Output Resonance 54

3.2.3 ZCT-PWM Converters with Parallel Auxiliary Circuit 55

3.3 ZVSZCS-PWM Boost Converters 57

3.4 Conclusion 60

References 61

4 Basic Isolated Converters 63

4.1 Transformer Models 64

4.2 Flyback Converter 64

4.3 Forward Converter 67

4.4 Variations on the Forward Converter 69

4.4.1 Forward Converter with RCD Snubber 69

4.4.2 Forward Converter with LCDD Snubber 70

4.4.3 Forward Converter with Regenerative Energy Snubber 71

4.5 Basic Two-Switch Isolated Converters 72

4.5.1 Two-Switch Forward Converter 72

4.5.2 Push-Pull Converter 74

4.5.3 Half-Bridge Converter 76

4.6 Full-Bridge Converter 77

4.7 Conclusion 80

Reference 81

5 Secondary-side Implementations in Isolated DC-DC Converters 82

5.1 Synchronous Rectifiers 82

5.2 Current Doublers 90

5.3 Multi-Output Converters 94

5.4 Conclusion 98

References 99

6 Soft-switching Forward and Flyback Converters 102

6.1 Forward Converters with Resonant Reset 103

6.2 Active Clamp Converter 104

6.2.1 Modes of Operation 106

6.2.2 Design Considerations 110

6.2.3 Active Clamp Flyback Converter 114

6.3 Alternatives to the Active Clamp Converter 115

6.3.1 Forward Converters 115

6.3.2 Flyback Converters 117

6.3.3 Converters with Regenerative Energy Snubber 119

6.4 Conclusion 120

References 121

7 The ZVS-PWM Full-b