A four-quadrant active virtual ground rectifier by using two high frequency switches. - Ken K. M. Siu; Carl Ngai Man Ho; Dong Li; River T. H. Li (IECON, 2017)

A Four-Quadrant Single-Phase Grid-Connected Converter With Only Two High-Frequency Switches. - Ken K. M. Siu; Carl Ngai Man Ho; River T. H. Li (IEEE Trans. Ind. Electron., 2020)