Marian K. Kazimierczuk, Dalvir K. Saini, Agasthya Ayachit

Average Current-Mode Control of DC-DC Power Converters (eBook, PDF)

• Format: PDF

Produktbeschreibung

AVERAGE CURRENT-MODE CONTROL OF DC-DC POWER CONVERTERS An authoritative one-stop guide to the analysis, design, development, and control of a variety of power converter systems Average Current-Mode Control of DC-DC Power Converters provides comprehensive and up-to-date information about average current-mode control (ACMC) of pulse-width modulated (PWM) dc-dc converters. This invaluable one-stop resource covers both fundamental and state-of-the-art techniques in average current-mode control of power electronic converters???featuring novel small-signal models of non-isolated and isolated converter topologies with joint and disjoint switching elements and coverage of frequency and time domain analysis of controlled circuits. The authors employ a systematic theoretical framework supported by step-by-step derivations, design procedures for measuring transfer functions, challenging end-of-chapter problems, easy-to-follow diagrams and illustrations, numerous examples for different power supply specifications, and practical tips for developing power-stage small-signal models using circuit-averaging techniques. The text addresses all essential aspects of modeling, design, analysis, and simulation of average current-mode control of power converter topologies, such as buck, boost, buck-boost, and flyback converters in operating continuous-conduction mode (CCM). Bridging the gap between fundamental modeling methods and their application in a variety of switched-mode power supplies, this book: * Discusses the development of small-signal models and transfer functions related to the inner current and outer voltage loops * Analyzes inner current loops with average current-mode control and describes their dynamic characteristics * Presents dynamic properties of the poles and zeros, time-domain responses of the control circuits, and comparison of relevant modeling techniques * Contains a detailed chapter on the analysis and design of control circuits in time-domain and frequency-domain * Provides techniques required to produce professional MATLAB plots and schematics for circuit simulations, including example MATLAB codes for the complete design of PWM buck, boost, buck-boost, and flyback DC-DC converters * Includes appendices with design equations for steady-state operation in CCM for power converters, parameters of commonly used power MOSFETs and diodes, SPICE models of selected MOSFETs and diodes, simulation tools including introductions to SPICE, MATLAB, and SABER, and MATLAB codes for transfer functions and transient responses Average Current-Mode Control of DC-DC Power Converters is a must-have reference and guide for researchers, advanced graduate students, and instructors in the area of power electronics, and for practicing engineers and scientists specializing in advanced circuit modeling methods for various converters at different operating conditions.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 336
• Erscheinungstermin: 25. Februar 2022
• Englisch
• ISBN-13: 9781119525561
• Artikelnr.: 63585068

Autorenporträt

Marian K. Kazimierczuk, PhD, Professor of Electrical Engineering, Wright State University, Dayton, Ohio, USA. He has taught undergraduate and graduate electronics courses in the field of high-frequency power electronics for more than 35 years. Professor Kazimierczuk has performed an extensive research on PWM and resonant power converters, electronic ballasts, high-frequency magnetic components, high-efficiency RF power amplifiers, modeling and control of power converters, active power factor correction, wireless power transfer, renewable energy sources, power MOSFET drivers, and wide-bandgap GaN and SiC semiconductor devices. He has published over 500 papers in IEEE Transactions, IET journals, and IEEE international conferences, has written eight textbooks, and holds 7 patents. He is a Life Fellow of the IEEE. Dalvir K. Saini, PhD, Research Engineer, Failure Analysis Lab, University of Dayton Research Institute, Wright Patterson Air Force Base, Dayton, Ohio, USA. She has been pursuing the area of failure analysis of electrical systems and components related to aircraft safety, and has published several journal and conference publications in the field of modeling of switched-mode power converters. Agasthya Ayachit, PhD, Senior System Engineer, Mercedes-Benz Research & Development North America, Redford, Michigan, USA. He has been actively contributing to the design and development of power conversion stages in electric vehicle battery charging and e-drive systems. He has published several journal papers in IEEE Transactions, IET journals, and IEEE conferences in the field of small-signal modeling of power converters. His research interests are in the field of circuit topologies, modeling and design of power converters, wireless charging, and wide-bandgap semiconductor devices (GaN/SiC).

Inhaltsangabe

List of Symbols xiii

About the Authors xvii

Preface xix

Acknowledgments xxi

1 Introduction 1

1.1 Principle of Operation of Conventional Average Current-Mode Control Technique 3

1.2 Principle of Operation of Modified Average Current-Mode Control Technique 6

1.3 Steady-State Operation 7

2 Average Current-Mode Control of Buck DC-DC Converter 9

2.1 Circuit Description, DC Characteristics, and Design 10

2.1.1 Circuit Description 10

2.1.2 DC Model 10

2.1.3 Design Example 12

2.2 Large-Signal and Small-Signal Models of PWM Buck Converter in CCM 13

2.3 Power Stage Transfer Functions 15

2.3.1 Duty Cycle-to-Output Voltage Transfer Function Tp 16

2.3.2 Duty Cycle-to-Inductor Current Transfer Function Tpi 18

2.3.3 Input Voltage-to-Output Voltage Transfer Function M v 20

2.3.4 Input Voltage-to-Inductor Current Transfer Function M v i 21

2.3.5 Reverse Current Gain A i 22

2.3.6 Open-Loop Input Impedance Z i 24

2.3.7 Open-Loop Output Impedance Zo 26

2.4 Inner-Current Loop 27

2.4.1 Transfer Function of Filter and Non-inverting Amplifier Tf 29

2.4.2 Transfer Function of Pulse-Width Modulator Tm 30

2.4.3 Uncompensated Loop Gain Tki 30

2.4.4 Transfer Function of Control Circuit for Inner-Current Loop Tci 31

2.4.5 Compensated Loop Gain of Inner-Current Loop Ti 33

2.5 Closed-Loop Transfer Functions for Inner-Current Loop 34

2.5.1 Reference Voltage-to-Inductor Current Transfer Function Ticl 35

2.5.2 Reference Voltage-to-Output Voltage Transfer Function Tpicl 35

2.5.3 Input Voltage-to-Inductor Current Transfer Function Micl 36

2.5.4 Input Voltage-to-Output Voltage Transfer Function Mvicl 37

2.5.5 Input Impedance Ziicl 39

2.5.6 Output Impedance Zoicl 40

2.6 Outer-Voltage Loop 42

2.6.1 Transfer Function of Feedback Network beta 42

2.6.2 Uncompensated Loop Gain for Outer-Voltage Loop Tkv 42

2.6.3 Transfer Function of Control Circuit for Outer-Voltage Loop Tcv 43

2.6.4 Compensated Loop Gain of Outer-Voltage Loop Tv 46

2.7 Closed-Loop Transfer Functions for Outer-Voltage Loop 46

2.7.1 Reference Voltage-to-Output Voltage Transfer Function Tpcl 46

2.7.2 Input Voltage to Duty-Cycle Transfer Function Mdv 47

2.7.3 Input Voltage-to-Output Voltage Transfer Function Mvcl 49

2.7.4 Input Impedance Zivcl 50

2.7.5 Output Impedance Zovcl 52

2.8 Comparison of Closed-Loop and Open-Loop Step Responses 55

2.8.1 Response of Output Voltage to Step Change in Input Voltage 55

2.8.2 Response of Output Voltage to Step Change in Duty Cycle, Current-Loop reference Voltage, and Voltage-Loop Reference Voltage 55

2.8.3 Response of Input Current to Step Change in Input Voltage 56

2.8.4 Response of Output Voltage to Step Change in Load Current 57

2.9 Summary 58

3 Average Current-Mode Control of Boost DC-DC Converter 61

3.1 Circuit Description, DC Characteristics, and Design 62

3.1.1 Circuit Description 62

3.1.2 DC Model 62

3.1.3 Design Example 65

3.2 Large-Signal and Small-Signal Models of PWM Boost Converter for CCM 66

3.3 Power-Stage Transfer Functions 67

3.3.1 Duty Cycle-to-Output Voltage Transfer Function Tp 68

3.3.2 Duty Cycle-to-Inductor Current Transfer Function Tpi 74

3.3.3 Input Voltage-to-Output Voltage Transfer Function Mv 80

3.3.4 Input Voltage-to-Inductor Current Transfer Function M