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Designing maximum length sequence signal for frequency response measurement of switched mode converters

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Vilkko, Matti
dc.contributor.author Roinila, Tomi
dc.date.accessioned 2011-11-23T12:56:02Z
dc.date.available 2011-11-23T12:56:02Z
dc.date.issued 2008
dc.identifier.isbn 978-951-22-9708-5
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/804
dc.description.abstract Switched mode power converters are extensively used in powering consumer products. Requirements of short time-to-market and low bill of materials set new challenges to designers. The designers should efficiently create stable and robust designs using low-cost components with high parameter variations. Methods to test statistically the dynamical properties of final design would enable the designers to evaluate control design before production ramp-up. However, currently available testing methods require intervention into internal circuitry or are time consuming and too laborious. This paper describes how Maximum Length Binary Sequences can be used to obtain a high through-put frequency response measurement method to analyze the dynamics of switched mode converters. Some well known computational methods for the frequency response calculation are listed and the design of an appropriate maximum length excitation signal is presented. The proposed signal design procedure takes time-aliasing effect, noise reduction, and the disturbing harmonics generated by pulse width modulation of the converter controller into consideration. The results are verified by experimental measurements from a high-frequency switched mode converter. en
dc.format.extent 6
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.relation.ispartof Nordic Workshop on Power and Industrial Electronics (NORPIE/2008), June 9-11, 2008, Espoo, Finland en
dc.relation.ispartofseries Proceedings of the Nordic Workshop on Power and Industrial Electronics (NORPIE/2008) en
dc.subject.other Electrical engineering en
dc.title Designing maximum length sequence signal for frequency response measurement of switched mode converters en
dc.type A4 Artikkeli konferenssijulkaisussa fi
dc.description.version reviewed en
dc.subject.keyword identification en
dc.subject.keyword impedance measurement en
dc.subject.keyword sequences en
dc.subject.keyword switched mode power supplies en
dc.identifier.urn urn:nbn:fi:tkk-011552
dc.type.dcmitype text en

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