Dynamical analysis of the DCM buck converter

Author

Xuesong Feng ; Chuang Bi ; Yong Xiang ; Qian Zhang

Author_Institution

State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

2

fYear

2013

fDate

15-17 Nov. 2013

Firstpage

442

Lastpage

445

Abstract

Complex period-doubling bifurcation and tangent bifurcation exist in the DCM buck converter with the different feedback gain. The stability of the DCM buck converter is enhanced by employing a chaotic controller in the system. Moreover, the border collision bifurcation occurs at certain values of the feedback gain in the DCM buck converter. Based on the first-order discrete iterative map, the bifurcation diagrams and the corresponding Lyapunov exponent diagrams are obtained from the numerical simulation based on the discrete iterative map. The effectiveness of the chaos controller is verified by the simulation results.

Keywords

DC-DC power convertors; bifurcation; chaos; feedback; iterative methods; stability; DCM buck converter; Lyapunov exponent diagrams; border collision bifurcation; chaos controller; chaotic controller; complex period-doubling bifurcation; feedback gain; first-order discrete iterative map; tangent bifurcation; Bifurcation; Chaos; Circuit stability; Numerical stability; Stability analysis; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems (ICCCAS), 2013 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4799-3050-0

Type

conf

DOI

10.1109/ICCCAS.2013.6765378

Filename

6765378