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Pat. 10965238 United States, Int. Cl.22 H02P 21/20, H02P 27/08, H02M 5/458. Power conversion apparatus, power estimating method for electric motor, and control method for electric motor : Appl. N 15/461770 : Filed 17.03.2017 : Pub. 30.03.2021 : / Shingo Fukumaru, Hideaki Iura, Shinya Morimoto, Akira Yamazaki ; Assignee Yaskawa Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10965238/en?oq=US10965238.html (дата обращения: ДД.ММ.ГГГГ).