Piezoelectric transformers (PTs) have been seen as an attractive solution to reduce size and weight in AC-DC converters. This paper presents a PT AC-DC converter scheme that can operate over a worldwide range of input voltage by series and parallel PT connection with simple control scheme. With the analysis and experiment, it is verified that the scheme is available.
S. HamamuraD. KuroseTamotsu NinomiyaMotoji Yamamoto
Xijian HuangYao SunGuangfu NingYonglu LiuLiangcai ShuWenjing XiongMei Su
Ping WangLei ZhouYun ZhangJing LiMark Sumner