NDLI: On EMI-filter interactions in a regulated converter - stability and load-transient performance

Content Provider	IEEE Xplore Digital Library
Author	Suntio, T. Leppaaho, J. Hankaniemi, M.
Copyright Year	2009
Description	Author affiliation: Tampere University of Technology, Finland (Suntio, T.; Leppaaho, J.) \|\| Celerium Technologies Inc., Vaasa, Finland (Hankaniemi, M.)
Abstract	The EMI-filter design rules based on certain impedance parameters are developed in the late 1970's by means of a small-signal equivalent circuit valid only for the converters operating under direct-duty-ratio control in continuous conduction mode. Basically the design rules are valid for an arbitrary switched-mode converter but the implicit nature of some of the critical parameters has prevented the full understanding of the design process. The practical design rules usually dictate that the EMI-filter output impedance has to be designed less than the open and closed-loop input impedances of the converter. The paper shows consistently based on theory and practical evidence that the critical impedances are the closed-loop and short-circuit input impedances of which the short-circuit input impedance usually dominates in the interactions. The voltage and peak-current-mode buck converters are used as the source of practical evidence.
Starting Page	3031
Ending Page	3038
File Size	728127
Page Count	8
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316547
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Process design Switching converters Short-circuit input impedance Switched-mode converter Buck converters Input filter Source interaction Maintenance engineering History Filters Stability criteria Voltage Impedance Equivalent circuits
Content Type	Text
Resource Type	Article

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