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Pat. 10277138 United States, Int. Cl.22 H02M 3/335, H02M 1/32, H02M 1/00. Active clamp full bridge converter and driving method thereof : Appl. N 16/071807 : Filed 23.11.2016 : Pub. 30.04.2019 : / Woojin Choi, Duong Tran Dai ; Assignee Foundation of Soongsil University Industry Cooperation ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10277138/en?oq=US10277138.html (дата обращения: ДД.ММ.ГГГГ).