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Analysis and Modeling of Buck Converter in Discontinuous-Output-Inductor-Current Mode Operation
Materials and Engineering Research Institute (MERI), Sheffield Hallam University (SHU), Sheffield, UK
Lab of Green Power & Energy System (GPES), North China University of Technology (NCUT), Beijing, China
Materials and Engineering Research Institute (MERI), Sheffield Hallam University (SHU), Sheffield, UK
Lab of Green Power & Energy System (GPES), North China University of Technology (NCUT), Beijing, China
- 1 Materials and Engineering Research Institute (MERI), Sheffield Hallam University (SHU), Sheffield, UK
- 2 Lab of Green Power & Energy System (GPES), North China University of Technology (NCUT), Beijing, China
- 3 Materials and Engineering Research Institute (MERI), Sheffield Hallam University (SHU), Sheffield, UK
- 4 Lab of Green Power & Energy System (GPES), North China University of Technology (NCUT), Beijing, China
Energy and Power Engineering·Volume 05 (2013)·Pages 850–856·Published 30 June 2013·DOI10.4236/epe.2013.54B163
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Abstract
The Buck converter with LC input filter operating in discontinuous output current mode has a high power factor with a constant duty cycle. A Buck converter in this operation mode can reduce the reverse recovery loss of the freewheeling diode thus increase the efficiency. The operation, power factor analysis and modeling of the converter are studied in this paper. Experimental results are presented to verify the theoretical predictions .
KeywordsBuck ConverterPower Factor CorrectionModeling
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