Evaluation of a chaotic switching scheme for power converters

被引：0
|
作者：
Tse, KK [1 ]
Ng, WM [1 ]
Chung, HSH [1 ]
Hui, SYR [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
来源：
PESC 2000: 31ST ANNUAL IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-3 | 2000年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents an evaluation of the chaotic carrier frequency modulation scheme on the spectral characteristics of power converters. By incorporating a Chua's circuit into the feedback network, the converter time-domain and spectral behaviors at the equilibrium point, limit-cycle region and chaotic region are investigated. Input power spectral density and conducted electromagnetic interference of three basic dc/dc converters including buck, boost, and buck-boost converters are studied. By controlling the degree of chaos, the gradual transition of the spectral characteristics from periodic frequency modulation scheme to near random frequency modulation scheme is illustrated. The validity of the theoretical prediction is confirmed experimentally by using a dc/dc buck converter.
引用
收藏
页码：412 / 417
页数：6
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