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Title: Certain investigations on bridgeless isolated power factor correction converter
Researcher: Perumal B
Guide(s): Gnanambal I
Keywords: Engineering and Technology
Engineering Electrical and Electronic
PFC topologies
PFC converters
Power Factor Correction
University: Anna University
Completed Date: 2019
Abstract: New recommendations and future standards have increased the interest in Power Factor Correction PFC circuits Achieving high conversion efficiency has been a significant challenge for single phase PFC topologies Low efficiency in these PFC converters can be attributed to the high voltage and current stresses imposed on switches and other circuit components Furthermore in many cases in order to achieve proper input current shaping circulating the current through the converter which causes excessive conduction losses To solve this problem the proposed research designed a bridgeless isolated power factor correction converter which is implemented in LED products The proposed research presents a new PFC based BL Isolated Flyback Converter BL IFC for LED products In this work to improve the efficiency of traditional IFC BL configuration is introduced The front end FWR is eliminated in this configuration which reduces the conduction losses associated with them The designed converter consists of two power switches that operate in alternative halves of the line cycle such as positive and negative The proposed PFC based BL IFC is able to operate properly in CCM DCM and CRM Thus the proposed circuit can function in any of these modes to fit the intended application For DCM and CRM only output voltage control loop is required and does not require input current or voltage sensing Because of these benefits the BL IFC circuit is analyzed in DCM and CRM newline
Pagination: xxi,174p.
Appears in Departments:Faculty of Electrical Engineering

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01_title.pdfAttached File23.75 kBAdobe PDFView/Open
02_certificates.pdf302.83 kBAdobe PDFView/Open
03_abstracts.pdf96.5 kBAdobe PDFView/Open
04_acknowledgements.pdf4.63 kBAdobe PDFView/Open
05_contents.pdf69.73 kBAdobe PDFView/Open
06_list_of_tables.pdf5.01 kBAdobe PDFView/Open
07_list_of_figures.pdf109.41 kBAdobe PDFView/Open
08_list_of_abbreviations.pdf168.83 kBAdobe PDFView/Open
09_chapter1.pdf638.99 kBAdobe PDFView/Open
10_chapter2.pdf302.55 kBAdobe PDFView/Open
11_chapter3.pdf724 kBAdobe PDFView/Open
12_chapter4.pdf584.75 kBAdobe PDFView/Open
13_chapter5.pdf915.11 kBAdobe PDFView/Open
14_conclusion.pdf116 kBAdobe PDFView/Open
15_references.pdf187.98 kBAdobe PDFView/Open
16_list_of_publications.pdf75 kBAdobe PDFView/Open
80_recommendation.pdf83.52 kBAdobe PDFView/Open

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