Introduces chaos theory, its analytical methods and the means to
apply chaos to the switching power supply design
DC-DC converters are typical switching systems which have plenty of
nonlinear behaviors, such as bifurcation and chaos. The nonlinear
behaviors of DC-DC converters have been studied heavily over the past 20
years, yet researchers are still unsure of the practical application of
bifurcations and chaos in switching converters. The electromagnetic
interference (EMI), which resulted from the high rates of changes of
voltage and current, has become a major design criterion in DC-DC
converters due to wide applications of various electronic devices in
industry and daily life, and the question of how to reduce the annoying,
harmful EMI has attracted much research interest. This book focuses on
the analysis and application of chaos to reduce harmful EMI of DC-DC
converters.
After a review of the fundamentals of chaos behaviors of DC-DC
converters, the authors present some recent findings such as Symbolic
Entropy, Complexity and Chaos Point Process, to analyze the characters
of chaotic DC-DC converters. Using these methods, the statistic
characters of chaotic DC-DC converters are extracted and the foundations
for the following researches of chaotic EMI suppression are reinforced.
The focus then transfers to estimating the power spectral density of
chaotic PWM converters behind an introduction of basic principles of
spectrum analysis and chaotic PWM technique. Invariant Density, and
Prony and Wavelet analysis methods are suggested for estimating the
power spectral density of chaotic PWM converters. Finally, some
design-oriented applications provide a good example of applying chaos
theory in engineering practice, and illustrate the effectiveness on
suppressing EMI of the proposed chaotic PWM.
- Introduces chaos theory, its analytical methods and the means to apply
chaos to the switching power supply design
- Approaches the subject in a systematic manner from analyzing method,
chaotic phenomenon and EMI characteristics, analytical methods for
chaos, and applying chaos to reduce EMI (electromagnetic interference)
- Highlights advanced research work in the fields of statistic
characters of nonlinear behaviors and chaotic PWM technology to
suppress EMI of switching converters
- Bridges the gap between numerical theory and real-world applications,
enabling power electronics designers to both analyze the effects of
chaos and leverage these effects to reduce EMI