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Table of Contents
Preface; Contents; Part I Introduction to Power Electronics; 1 The Philosophy of Power Electronics; 1.1 All Switching Converter Is Time-Varying, Which Makes Power Electronics so Unique and Difficult to Learn; 1.2 A Switching Converter May Even Be Nonlinear but Fortunately It Is Linear in Many Cases; 1.3 Converters Are Crucial for Matching Various Sources with Loads; 1.4 The Dynamic Characteristics of AC Circuits Are Another Challenging Issue in Power Electronics; 1.5 Power Electronics Deals with the Unseen, Untouchable, Unbounded, and Inseparable Natures
1.6 Why Do We Need Theories, Simulations, and Experiments?1.7 Good Power Electronics Engineers Do not Rely on Complicated Equations; Instead, a Smart Equivalent Circuit Is Enough; 2 Key Principles of Power Converters; 2.1 Evolution of Power Converters; 2.1.1 Why Do We Need Power Control?; 2.1.2 We Can Control the Power by a Time-Varying Resistor; 2.1.3 We Can Control the Power by a Power Transistor in Linear Mode; 2.1.4 We Can Control the Power by a Power Transistor in Switching Mode; 2.1.5 A Switching Converter with Input and Output Filters Is a Viable Solution
2.1.6 What Are Allowable Switches and What Are not Allowed?2.2 Understanding the Operation of Converters; 2.2.1 CCM and DCM Analyses for an Ideal Switch Cell; 2.2.2 Practical Switching Characteristics of a Switching Cell; 2.2.3 Snubber Circuits Are Often Used to Improve Switching Characteristics; Part II Switching Convertersas Electronic Transformers; 3 Conventional Models; 3.1 State Space Average Model; 3.1.1 One of the Most Powerful and Simple Methods for Eliminating Time-Varying Nature of DC-DC Converters; 3.1.2 The State Average Model Is not an Exact but Rather an Approximate Model
3.1.3 The Merits and Demerits of the State Average Model3.2 Existence Function Model; 3.3 Discrete State Equation Model; References; 4 Switched Transformer Model; 4.1 Introduction to Switched Transformer Models; 4.1.1 A Switch Set in the DC-DC Converter Is a Switched Autotransformer; 4.1.2 A Switched Transformer Can Be Decomposed to an Ordinary Transformer and Harmonic Sources; 4.1.3 DC Analyses of DC Converters Become Possible Without Using Any Equations; 4.1.4 Switches in the DC-AC (or AC-DC) Converters Are also Equivalent to Switched Transformers
4.1.5 Even the Switches in AC-AC Converters Are Equivalent to Electronic Transformers4.2 AC Analyses and Harmonic Analyses; 4.2.1 A Perturbed Electronic Transformer Makes It Possible to Get the AC Analyses; 4.2.2 The Harmonic Analysis Model Is the Same as the AC Perturbed Circuit; 4.2.3 The Switched Transformer Model Can Be Applicable Even to Nonlinear Switching Converters; 4.2.4 The Switched Transformer Model Can Be Applicable Even to the Case of Finite Switching Times; 4.2.5 The Switched Transformer Model Can Deal with Switching Converters with Great Easy and Accurately; References
1.6 Why Do We Need Theories, Simulations, and Experiments?1.7 Good Power Electronics Engineers Do not Rely on Complicated Equations; Instead, a Smart Equivalent Circuit Is Enough; 2 Key Principles of Power Converters; 2.1 Evolution of Power Converters; 2.1.1 Why Do We Need Power Control?; 2.1.2 We Can Control the Power by a Time-Varying Resistor; 2.1.3 We Can Control the Power by a Power Transistor in Linear Mode; 2.1.4 We Can Control the Power by a Power Transistor in Switching Mode; 2.1.5 A Switching Converter with Input and Output Filters Is a Viable Solution
2.1.6 What Are Allowable Switches and What Are not Allowed?2.2 Understanding the Operation of Converters; 2.2.1 CCM and DCM Analyses for an Ideal Switch Cell; 2.2.2 Practical Switching Characteristics of a Switching Cell; 2.2.3 Snubber Circuits Are Often Used to Improve Switching Characteristics; Part II Switching Convertersas Electronic Transformers; 3 Conventional Models; 3.1 State Space Average Model; 3.1.1 One of the Most Powerful and Simple Methods for Eliminating Time-Varying Nature of DC-DC Converters; 3.1.2 The State Average Model Is not an Exact but Rather an Approximate Model
3.1.3 The Merits and Demerits of the State Average Model3.2 Existence Function Model; 3.3 Discrete State Equation Model; References; 4 Switched Transformer Model; 4.1 Introduction to Switched Transformer Models; 4.1.1 A Switch Set in the DC-DC Converter Is a Switched Autotransformer; 4.1.2 A Switched Transformer Can Be Decomposed to an Ordinary Transformer and Harmonic Sources; 4.1.3 DC Analyses of DC Converters Become Possible Without Using Any Equations; 4.1.4 Switches in the DC-AC (or AC-DC) Converters Are also Equivalent to Switched Transformers
4.1.5 Even the Switches in AC-AC Converters Are Equivalent to Electronic Transformers4.2 AC Analyses and Harmonic Analyses; 4.2.1 A Perturbed Electronic Transformer Makes It Possible to Get the AC Analyses; 4.2.2 The Harmonic Analysis Model Is the Same as the AC Perturbed Circuit; 4.2.3 The Switched Transformer Model Can Be Applicable Even to Nonlinear Switching Converters; 4.2.4 The Switched Transformer Model Can Be Applicable Even to the Case of Finite Switching Times; 4.2.5 The Switched Transformer Model Can Deal with Switching Converters with Great Easy and Accurately; References