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Pat. 11349404 United States, Int. Cl.22 H02M 3/158, H02M 3/00, H02M 3/07, H02M 3/335, H02M 1/00. Power conversion circuit and power conversion apparatus with same : Appl. N 17/115605 : Filed 08.12.2020 : Pub. 31.05.2022 : / Da Jin, Yahong Xiong, Qinghua Su ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11349404/en?oq=US11349404.html (дата обращения: ДД.ММ.ГГГГ).