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Pat. 10454381 United States, Int. Cl.22 H02J 7/00, H01F 27/24, H01F 27/28, H02J 7/02, H02J 7/04, H02M 1/088, H02M 1/14, H02M 1/42, H02M 3/335, H02M 3/337, H01F 27/34, H02M 1/00. Variable DC link converter and transformer for wide output voltage range applications : Appl. N 15/693930 : Filed 01.09.2017 : Pub. 22.10.2019 : / Bin Li, Zhengyang Liu, Fred C. Lee, Qiang Li ; Assignee Virginia Tech Intellectual Properties Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10454381/en?oq=US10454381.html (дата обращения: ДД.ММ.ГГГГ).