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Improved Hybrid-Parallel Single Stage PFC Converter
Chunfeng JIN Tamotsu NINOMIYA Shin NAKAGAWA
Publication
IEICE TRANSACTIONS on Communications
Vol.E88-B
No.2
pp.745-750 Publication Date: 2005/02/01 Online ISSN:
DOI: 10.1093/ietcom/e88-b.2.745 Print ISSN: 0916-8516 Type of Manuscript: PAPER Category: Energy in Electronics Communications Keyword: single stage AC-DC covnerter, IEC61000-3-2 class D, DCM, high efficiency, world wide range,
Full Text: PDF(1.1MB)>>
Summary:
This paper proposes an improved type of the Hybrid-Parallel Power-Factor-Correction (HP-PFC) converter. It has the advantage of a higher efficiency and improved input current waveform. This advantage achieved through changing new charging path of the bulk capacitor and balancing the power flow from the two transformers to the output. This new circuit has been analyzed using MATLAB/Simulink and confirmed with experiment. As a conclusion, it is confirmed that this improved HP-PFC converter complies with the severe regulation of IEC61000-3-2 Class D. Moreover, a high efficiency of 90% is achieved for 15 V/6 A output power under the worldwide line voltage conditions.
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