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Pat. 11201578 United States, Int. Cl.22 H02P 6/00, H02M 7/48, H02P 6/20, H02P 6/28, H02P 21/22, H02P 23/00, H02P 27/08, H02P 29/40. Motor control system : Appl. N 16/787533 : Filed 11.02.2020 : Pub. 14.12.2021 : / Akihisa Mieda ; Assignee Toshiba Corp, Toshiba Electronic Devices and Storage Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11201578/en?oq=US11201578.html (дата обращения: ДД.ММ.ГГГГ).