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Pat. 10931220 United States, Int. Cl.22 H02P 27/08, G05F 1/67, H02M 3/158, H02P 1/26, H02P 1/42, H02P 1/52, H02P 27/04, H02S 40/30, H02S 40/32, H02M 7/5387. Variable speed maximum power point tracking, solar electric motor controller for induction and permanent magnet AC motors : Appl. N 15/768533 : Filed 12.10.2016 : Pub. 23.02.2021 : / Yusuf Gurkaynak, Nikola Milivojevic, Gerhard Hautmann, John Loporto ; Assignee Premier Energy Holdings Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10931220/en?oq=US10931220.html (дата обращения: ДД.ММ.ГГГГ).