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Parasitics Realization in State-Space Average-Value Modeling of PWM DC—DC Converters Using an Equal Area Method.
- Source :
-
IEEE Transactions on Circuits & Systems. Part I: Regular Papers . Sep2007, Vol. 54 Issue 9, p1960-1967. 8p. - Publication Year :
- 2007
-
Abstract
- Average-value modeling of pulsewidth-modulation dc-dc converters is often based on the assumption of piecewise- linear waveforms of the circuit variables, whereas considering parasitics introduces waveform nonlinearity and complicates the model derivation. This paper presents a new approach that considers averaging with nonlinear waveforms using the equivalent area method, and proposes a state-space averaged model that is fairly accurate and seamlessly functional in both continuous and discontinuous conduction modes. The resulting average-value model is applicable for large-signal transient studies as well as for linearization and subsequent small-signal analysis. The proposed model is validated with a hardware prototype and a detailed simulation, and is shown to be an improvement over previously established models in the time and frequency domains. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15498328
- Volume :
- 54
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers
- Publication Type :
- Periodical
- Accession number :
- 26819604
- Full Text :
- https://doi.org/10.1109/TCSI.2007.904686