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Pat. 11515809 United States, Int. Cl.22 H02M 7/537, H02M 1/08, H02M 1/14, H02M 1/00. Power conversion device and power conversion method : Appl. N 16/892287 : Filed 04.06.2020 : Pub. 29.11.2022 : / Satoshi Watanabe, Taisuke Katayama ; Assignee Yaskawa Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11515809/en?oq=US11515809.html (дата обращения: ДД.ММ.ГГГГ).