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Non-Smooth Bifurcation and Chaos in a DC-DC Buck Converter |
| QIN Zhi-Ying 1,2;LU Qi-Shao 1 |
| 1School of Science, Beijing University of Aeronautics and Astronautics, Beijing 1000832School of MEE, Hebei University of Science and Technology,Shijiazhuang 050054 |
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| Cite this article: |
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QIN Zhi-Ying, LU Qi-Shao 2007 Chin. Phys. Lett. 24 886-889 |
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Abstract A direct-current--direct-current (DC-DC) buck converter with integrated load current feedback is studied with three kinds of Poincare 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 1-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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| Keywords:
05.45.-a
84.32.Dd
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Received: 07 July 2006
Published: 26 March 2007
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| PACS: |
05.45.-a
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(Nonlinear dynamics and chaos)
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84.32.Dd
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(Connectors, relays, and switches)
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