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Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation / Titelei/Inhaltsverzeichnis
Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation / Titelei/Inhaltsverzeichnis
Contents
Chapter
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I–VIII
Titelei/Inhaltsverzeichnis
I–VIII
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1–13
1 Introduction
1–13
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1.1 Switching Converters
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1.2 EMI and EMC
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1.2.1 EMI Elements
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1.2.2 EMC Test
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1.2.3 Visualization of EMI
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1.3 EMI Suppression in Switching Converters
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1.3.1 Filtering and Shielding
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1.3.2 Soft Switching
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1.3.3 Chaos Technique
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1.3.4 Effect of Chaotic Signal onModulation
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1.4 Motivation
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1.5 About the Dissertation
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14–22
2 Circuitry Design for Chaotic Modulation
14–22
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2.1 Introduction
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2.2 Chaotic FrequencyModulation
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2.2.1 Principle of SpectrumSpreading
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2.2.2 Circuitry Design
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2.3 Chaotic DutyModulation
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2.3.1 Principle of SpectrumSpreading
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2.3.2 Circuitry Design
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2.4 Simulations
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2.5 Summary
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23–29
3 Central Frequency of Chaotic Signals
23–29
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3.1 Introduction
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3.2 Duffing Oscillator
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3.3 Chua’s Circuit
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3.3.1 Unitary Processing
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3.3.2 The Oscillating Frequency
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3.4 Central Frequency
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3.5 Summary
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30–43
4 Effect of Central Frequency on EMI Reduction
30–43
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4.1 Introduction
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4.2 Frequency Spectrum under Chaotic modulation
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4.2.1 Chaotic DutyModulation
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4.2.2 Spectral Analysis
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4.3 Chaotic Analogue Signal
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4.3.1 Parameter Configuration for Central Frequency
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4.3.2 Simulations and Experiments
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4.4 Chaotic Digital Signal
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4.4.1 ChaoticMaps
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4.4.2 Algorithm Design
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4.4.3 Simulations and Experiments
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4.5 Summary
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44–56
5 Realizing Chaotic Duty Modulation
44–56
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5.1 Introduction
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5.2 Implementation of Chaotic DutyModulation
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5.3 Analogue Chaotic DutyModulation
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5.3.1 System and TL494
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5.3.2 Design of Chaotic Signal Generator
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5.3.3 Simulations and Experiments
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5.4 Digital Chaotic DutyModulation
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5.4.1 Scheme Design
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5.4.2 EMC Test
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5.5 Summary
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57–71
6 System Stability under Chaotic Duty Modulation
57–71
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6.1 Introduction
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6.2 Circuit AverageModel of a Half-Bridge Converter
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6.2.1 Circuit Description
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6.2.2 Large SignalModel
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6.2.3 Direct CurrentModel and Small SignalModel
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6.3 Stability
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6.4 Summary
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72–82
7 The Remaining Useful Life under Chaotic Modulation
72–82
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7.1 Introduction
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7.2 FailureModel of Critical Components
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7.3 Impact of ChaoticModulation on Critical Components
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7.3.1 Electrolytic Capacitor
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7.3.2 Power Switch
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7.4 Failure Influence of Chaotic Modulation
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7.4.1 Parameters of Analogue Signal Generator
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7.4.2 Operation Precision of Digital Signal Generator
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7.4.3 Simulations
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7.5 Summary
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83–87
8 Tests of Input and Output Characteristics
83–87
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8.1 Introduction
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8.2 Input Characteristics
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8.3 Output Characteristics
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8.3.1 Voltage Accuracy
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8.3.2 Output Transient Response
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8.4 Comparisons of Test Results
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8.5 Summary
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88–89
9 Conclusions
88–89
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90–100
References
90–100
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Suppressing Electromagnetic Interference in Switching Converters by Chaotic Duty Modulation , page I - VIII
Titelei/Inhaltsverzeichnis
Autoren
Yuhong Song
DOI
doi.org/10.51202/9783186850102-I
ISBN print: 978-3-18-385010-5
ISBN online: 978-3-18-685010-2
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