Digital Control of High-Frequency Sitched-Mode Poer Converters [Hardcover]

• Comprehensive treatment of digital control theory for power converters
• Verilog and VHDL sample codes are provided
• Enables readers to successfully analyze, model, design, and implement voltage, current, or multi-loop digital feedback loops around switched-mode power converters
• Practical examples are used throughout the book to illustrate applications of the techniques developed
• Matlab examples are also provided

INTRODUCTION 1

CHAPTER 1 CONTINUOUS-TIME AVERAGED MODELING OF DC–DC CONVERTERS 13

1.1 Pulse Width Modulated Converters 14

1.2 Converters in Steady State 16

1.2.1 Boost Converter Example 17

1.2.2 Estimation of the Switching Ripple 19

1.2.3 Voltage Conversion Ratios of Basic Converters 20

1.3 Converter Dynamics and Control 21

1.3.1 Converter Averaging and Linearization 22

1.3.2 Modeling of the Pulse Width Modulator 24

1.3.3 The System Loop Gain 25

1.3.4 Averaged Small-Signal Models of Basic Converters 26

1.4 State-Space Averaging 28

1.4.1 Converter Steady-State Operating Point 28

1.4.2 Averaged Small-Signal State-Space Model 29

1.4.3 Boost Converter Example 30

1.5 Design Examples 32

1.5.1 Voltage-Mode Control of a Synchronous Buck Converter 32

1.5.2 Average Current-Mode Control of a Boost Converter 42

1.6 Duty Ratio d[k]lC"