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Pat. 10361626 United States, Int. Cl.22 H02M 7/219, H02M 1/42, H02M 7/483, H02M 7/487, H02M 1/00, H02M 7/06. Multi-level power factor correction circuit using hybrid devices : Appl. N 16/007325 : Filed 13.06.2018 : Pub. 23.07.2019 : / Dianbo Fu, Xiaolin Mao, Heping Dai ; Assignee Futurewei Technologies Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10361626/en?oq=US10361626.html (дата обращения: ДД.ММ.ГГГГ).