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Pat. 11228251 United States, Int. Cl.22 H02M 3/335, H02M 1/00, H02M 7/487. Hybrid five-level bidirectional DC/DC converter and voltage match modulation method thereof : Appl. N 17/114277 : Filed 07.12.2020 : Pub. 18.01.2022 : / Lijun Hang, Anping Tong, Shenglun Chen, Chi Shao, Yuanbin He, Lei Shen, Pingliang Zeng ; Assignee Hangzhou Dianzi University ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11228251/en?oq=US11228251.html (дата обращения: ДД.ММ.ГГГГ).