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Pat. 10003251 United States, Int. Cl.22 H02M 1/00, H02M 1/08, H02M 1/14, H02M 7/42, H02M 7/44, H02M 7/493, H02M 7/497, H02M 7/537. Power converting device containing high frequency inverter and low frequency inverter connecting in parallel and the method thereof : Appl. N 15/468131 : Filed 24.03.2017 : Pub. 19.06.2018 : / Tsai-Fu Wu, Yen-Hsiang Huang, Li-Chun Lin ; Assignee National Tsing Hua University Nthu ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10003251/en?oq=US10003251.html (дата обращения: ДД.ММ.ГГГГ).