Chaos in Switching Converters for Power Management (PDF)

This book addresses the need for models and techniques to predict stability boundaries, given trends toward miniaturization of switching power supplies in battery-operated portable devices, which lead to the exhibition of fast-scale chaotic instabilities.  The authors describe a method to predict stability boundaries from a design-oriented perspective, which captures the effect of the different parameters of the system upon the particular boundary.  Unlike previous methods involving complex analysis based on the discrete-time mathematical model, the method introduced here allows for prediction of the overall stability boundaries within the complete design space and is based upon a simple design-oriented index.

• Provides a valuable reference to the field of nonlinear dynamical behavior and bifurcation analysis and control of switch-mode power supplies.
• Shows limitations of existing models for predicting chaotic instabilities in switching power converters;
• Describes a new approach to predict  instabilities from a simple, ripple-based index, showing the effect of different converter parameters on stability boundaries;
• Provides a design-oriented  model able to predict concurrently both slow-scale and fast-scale instabilities;
• Enables readers to understand the causes of chaos and design new chaos controllers for switching power converters.