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Pat. 11342861 United States, Int. Cl.22 H02M 5/458, H02P 23/00, H03H 7/06. Method and apparatus to mitigate DC bus over-voltages on common AC bus systems utilizing DC and AC drives : Appl. N 17/037979 : Filed 30.09.2020 : Pub. 24.05.2022 : / Zhijun Liu, Gary L. Skibinski ; Assignee Rockwell Automation Technologies Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11342861/en?oq=US11342861.html (дата обращения: ДД.ММ.ГГГГ).