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A Comparative Investigation of Several Frequency Modulation Profiles for Programmed Switching Controllers Targeted Conducted-Noise Reduction in DC-DC Converters


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Title: A Comparative Investigation of Several Frequency Modulation Profiles for Programmed Switching Controllers Targeted Conducted-Noise Reduction in DC-DC Converters
Authors: Dousoky, Gamal M. / Shoyama, Masahito / Ninomiya, Tamotsu
Issue Date: Sep-2010
Publisher: The Institute of Electronics, Information and Communication Engineers / 電子情報通信学会
Citation: IEICE Transactions on Communications, E93-B(9), pp.2265-2272; 2010
Abstract: This paper investigates the effect of several frequency modulation profiles on conducted-noise reduction in dc-dc converters with programmed switching controller. The converter is operated in variable frequency modulation regime. Twelve switching frequency modulation profiles have been studied. Some of the modulation data are prepared using MATLAB software, and others are generated online. Moreover, all the frequency profiles have been designed and implemented using FPGA and experimentally investigated. The experimental results show that the conducted-noise spreading depends on both the modulation sequence profile and the statistical characteristics of the sequence. A substantial part of the manufacturing cost of power converters for telecommunication applications involves designing filters to comply with the EMI limits. Considering this investigation significantly reduces the filter size.
Keywords: DC-DC power conversion / Electromagnetic compatibility / Frequency modulation / Noise reduction / Programmed switching
URI: http://hdl.handle.net/10069/24059
ISSN: 09168516
DOI: 10.1587/transcom.E93.B.2265
Rights: Copyright © 2010 The Institute of Electronics, Information and Communication Engineers.
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/24059

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