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Pat. 11063550 United States, Int. Cl.22 H02P 27/08, H02M 1/12, H02M 1/44, H02M 7/5387, H02P 29/50. Active harmonic filter and regenerating energy control apparatus and method of operation : Appl. N 16/437043 : Filed 11.06.2019 : Pub. 13.07.2021 : / Huaqiang Li ; Assignee Eaton Intelligent Power Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11063550/en?oq=US11063550.html (дата обращения: ДД.ММ.ГГГГ).