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Pat. 11349409 United States, Int. Cl.22 H02M 7/00, H02J 3/32, H02J 7/00, H02M 7/493. Power conversion device and power conversion system : Appl. N 16/979870 : Filed 18.03.2019 : Pub. 31.05.2022 : / Kenji Fujiwara, Tatsuya Okuda, Takahiro Kato ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11349409/en?oq=US11349409.html (дата обращения: ДД.ММ.ГГГГ).