Proceedings ArticleDOI
Suppressing electromagnetic interference with chaos control: Methodologies and case study
Zhong Li,Wolfgang A. Halang,Junying Niu,Yuhong Song,Gary G. Feng +4 more
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TLDR
In this paper, a modulation technique based on mathematical chaos is introduced and investigated with respect to suppress electromagnetic inference (EMI) in power electronics converters with replacing or complementing traditional filtering and schielding technologies in mind.Abstract:
A modulation technique based on mathematical chaos is introduced and investigated with respect to suppress electromagnetic inference (EMI) in power electronics converters with replacing or complementing traditional filtering and schielding technologies in mind. The technique allows for parameter modulation and for chaos-based pulse width modulation (PWM). The latter can be implemented both in analogue or digital ways. To facilitate industrial applications, a novel chaotic modulation interface circuit to serve as a plug-in component for commercial power supplies is designed. Its effectiveness is verified theoretically and experimentally.read more
Citations
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Journal ArticleDOI
A Review of Spread-Spectrum-Based PWM Techniques—A Novel Fast Digital Implementation
TL;DR: An insight is provided into the SS techniques: its history, its types, and mainly its ability to mitigate the EMI problem in the SMPS domain and a new fast digital implementation method based on a dsPIC33F microcontroller is presented.
Proceedings ArticleDOI
Impact of the Used Chaotic Map on the EMI Reduction Level
TL;DR: This paper is an attempt to harness the benefits of the chaotic digital control when tackling the EMI problem in a boost converter by analyzing different chaotic maps in a spread spectrum technique.
Proceedings ArticleDOI
Electromagnetic interference reduction in boost converter using logistic PWM
TL;DR: In this paper, the chaotic pulse width modulation scheme based on logistic map (LPWM) was used to mitigate EMI in switch mode power converters, which is a spread spectrum technique that spreads out uniformly the entire energy over the frequency band.
Proceedings ArticleDOI
Suppressing EMI in Power Converters with Chaotic Duty Modulation
Yuhong Song,Zhong Li +1 more
TL;DR: The power spectrum of the chaotic duty modulation is analyzed and a buck converter is adopted to realize the modulation schedule by connecting a chaotic signal to the converter’s PWM control circuit.
Journal ArticleDOI
A survey of conductive and radiated EMI reduction techniques in power electronics converters across wide‐bandgap devices
TL;DR: In this paper , the characteristics of widebandgap (WBG) devices, and the significant EMI problems are discussed, the EMI types, EMI causes, and methods of EMI reduction are summarized.
References
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Journal ArticleDOI
An evaluation of the spectral characteristics of switching converters with chaotic carrier-frequency modulation
TL;DR: The developed model is applied to formulate the power spectral densities of the input current and the output voltage of the three basic DC/DC converters under CCFMS.
Journal ArticleDOI
Suppressing electromagnetic interference in direct current converters
TL;DR: In this paper, the authors provide an overview on the state of the art of traditional EMI suppression technologies, and introduce the use of chaos theory and chaos control to reduce EMI, as well as to motivate more efforts in theoretical research and engineering practice.
Journal ArticleDOI
Calculation of the periodic spectral components in a chaotic DC-DC converter
TL;DR: In this paper, a simple mapping is derived, which describes the behavior of a peak currentmode controlled boost converter operating chaotically, and the invariant density of this mapping is calculated iteratively and, from this, the power density spectrum of the input current at the clock frequency and its harmonics are deduced.
Journal Article
Noise Analysis of DC-to-DC Converter with Random-Switching Control
TL;DR: The noise spectrum by random switching is analyzed in a general approach including a noise-generation model and a switching function with a random process and the amount of random perturbation is quantitatively analyzed.
Proceedings ArticleDOI
Minimising EMI problems with chaos
TL;DR: In this paper, it is shown that chaos can be used in power electronic circuits to spread the spectrum of power converters, thereby reducing the interference power at any target frequency, and that this natural phenomenon can be effectively used in minimising EMI problems.
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