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2007 Volume 24 Issue 4
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QIN Zhi-Ying, LU Qi-Shao. 2007: Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter, Chinese Physics Letters, 24(4): 886-889.
Citation: QIN Zhi-Ying, LU Qi-Shao. 2007: Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter, Chinese Physics Letters, 24(4): 886-889.
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Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter

  • School of Science,Beijing University of Aeronautics and Astronautics,Beijing 100083;School of MEE,Hebei University of Science and Technology,Shijiazhuang 050054

  • School of Science,Beijing University of Aeronautics and Astronautics,Beijing 100083

  • Available Online: 30/04/2007
  • Fund Project: the National Natural Science Foundation of China under Grant No 10572011
  • A direct-current-dorect-current (DC-DC)buck converter with integrated load current feedback is studied with three kinds of Poicaré maps.The external corner-collision bifurcation occurs when the crossing number per period varies,and the internal corner-collision bifurcations occur along with period-doubling and period-tripling bifurcations in this model.The multi-band chaos roots in external corner-collision bifurcation and often grows into l-band chaos.A new kind of chaotic sliding orbits,which is more complex for non-smooth systems,is also found in this model.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter

  • Available Online: 30/04/2007

Abstract: A direct-current-dorect-current (DC-DC)buck converter with integrated load current feedback is studied with three kinds of Poicaré maps.The external corner-collision bifurcation occurs when the crossing number per period varies,and the internal corner-collision bifurcations occur along with period-doubling and period-tripling bifurcations in this model.The multi-band chaos roots in external corner-collision bifurcation and often grows into l-band chaos.A new kind of chaotic sliding orbits,which is more complex for non-smooth systems,is also found in this model.

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