Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) M. Nakamura and N. Takahashi and Ichiro Yokozeki and Yoshito Kato,Electronic Ballast Using Neutral Point Type Step-down Converter,2005 International Conference on Power Electronics and Drives Systems,,IEEE,2006-04-28,1,,672-675,https://cir.nii.ac.jp/crid/1873116917483793280,https://doi.org/10.1109/peds.2005.1619770