TY - BOOK AU - Li, Rongguan. AU - Li, Rongguan. AU - Chen, Wu. AU - Shao, Shuai. AU - Jin, Haozhe. AU - Shu, Liangcai. AU - Gao, Shilong. TI - A novel hybrid DC transformer combining modular multilevel converter structure and series-connected semiconductor switches U1 - DPer 621.317 Ie21 May 2022 v. 37 n. 5 PY - 2022/// CY - New York ; PB - The Institute of Electrical and Electronics Engineers, Inc. , N1 - IEEE Transactions on Power Electronics, vol. 37, no. 5, pages 5699-5713, May 2022 ER -