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Pat. 11309807 United States, Int. Cl.22 H02J 3/18, H02J 3/16, H02M 7/48, H02M 7/483, H02M 7/64, H02J 3/12, H02J 3/38. Power conversion system and power conversion device : Appl. N 17/293915 : Filed 11.01.2019 : Pub. 19.04.2022 : / Miwako Tanaka, Hiroki Ishihara ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11309807/en?oq=US11309807.html (дата обращения: ДД.ММ.ГГГГ).