YAOW-MING CHENCheng, Y.-M.Y.-M.ChengLiang, T.-J.T.-J.Liang2020-06-112020-06-111998https://scholars.lib.ntu.edu.tw/handle/123456789/501258A high power factor AC-DC-AC converter using the valley-fill filterconference paper10.1109/PEDES.1998.13300152-s2.0-85015282180https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015282180&doi=10.1109%2fPEDES.1998.1330015&partnerID=40&md5=389c5d8b4c990e1fa7bcbedaa6597d58