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Modelling, analyses and design of switching convertersA state-space averaging method for modelling switching dc-to-dc converters for both continuous and discontinuous conduction mode is developed. In each case the starting point is the unified state-space representation, and the end result is a complete linear circuit model, for each conduction mode, which correctly represents all essential features, namely, the input, output, and transfer properties (static dc as well as dynamic ac small-signal). While the method is generally applicable to any switching converter, it is extensively illustrated for the three common power stages (buck, boost, and buck-boost). The results for these converters are then easily tabulated owing to the fixed equivalent circuit topology of their canonical circuit model. The insights that emerge from the general state-space modelling approach lead to the design of new converter topologies through the study of generic properties of the cascade connection of basic buck and boost converters.
Document ID
19780021408
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Cuk, S. M. (California Inst. of Tech. Pasadena, CA, United States)
Middlebrook, R. D. (California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1978
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
TRW-D04803-CFCM
TRW-A72042-RHBE
NASA-CR-135174
Accession Number
78N29351
Funding Number(s)
CONTRACT_GRANT: NAS3-19690
CONTRACT_GRANT: NAS3-20102
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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