Bifurcation Analysis of Boost Converters with PWM IC

Author

Der-Cherng Liaw ; Chau-Chung Song ; Huo-Long Zeng

Author_Institution

Dept. of Electr. & Control Eng., Nat. Chiao Tung Univ., Hsinchu

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

6

Abstract

The general boost converters designed by the commercial PWM IC are studied in this paper. The commercial TL494 IC is used to implement the PWM-controlled circuit. Applying the sampled-data approach, the mathematical model is constructed to analyze the nonlinear dynamics of the boost converter. The bifurcation theory is applied to study the stability and the nonlinear phenomena of the proposed model, while the system parameters of converters vary. Using the Matlab/Simulink software, the numerical simulation is performed to analyze the system behaviour and time responses merged from bifurcation points. Moreover, the bifurcation phenomena are demonstrated by implementing the experiments of the practical circuit. The understanding of nonlinear dynamics opens up new possibilities of operating regimes that can help to optimize the design of boost converters

Keywords

PWM power convertors; bifurcation; design engineering; integrated circuits; mathematical analysis; Matlab; PWM IC; PWM-controlled circuit; Simulink software; bifurcation analysis; boost converters; commercial TL494 IC; mathematical model; nonlinear dynamics; Bifurcation; Circuit stability; Design optimization; Mathematical model; Nonlinear dynamical systems; Numerical simulation; Performance analysis; Pulse width modulation; Pulse width modulation converters; Software performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1712190

Filename

1712190