標題: Suppression of Electromagnetic Interference of DC-DC Power Converters by Chaos Generators
作者: Chen, Fu-Chuang
Shen, Po-Nien
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: chaos;bifurcation;boost converter;DC-DC converter;PSD;EMI;current mode control
公開日期: 1-一月-2010
摘要: Power DC-DC converters are notorious sources of electromagnetic interference in electronic products; therefore, suppression of EMI is an important topic in the design of switch-mode power converters. Conventional EMI suppression methods may employ LC filters and metal shielding, but this can significantly increase cost, size, and weight. In this paper we propose a chaos-based method to reduce peak EMI magnitude and spread the energy to a wide range of frequencies. This method is to add a chaos-modulation clock to a converter maintaining in regular period state, in order to create chaotic behaviors in the converter. Our results show that this method is effective in suppressing EMI in DC-DC converters without much impact on the performance of converters. System stability is also analyzed and discussed. Moreover, compared with conventional methods, this method can be easily implemented in CMOS technology.
URI: http://hdl.handle.net/11536/146424
期刊: 2010 20TH AUSTRALASIAN UNIVERSITIES POWER ENGINEERING CONFERENCE (AUPEC 2010): POWER QUALITY FOR THE 21ST CENTURY
顯示於類別:會議論文