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Pat. 11397218 United States, Int. Cl.22 G01R 31/40, H02M 7/483. Method for diagnosing sub-module state during initial charge of MMC converter : Appl. N 16/769106 : Filed 20.12.2018 : Pub. 26.07.2022 : / Jung Won Hong, Hong Ju Jung, Hyun Ho Yoo, Joo Yeon Lee ; Assignee Hyosung Heavy Industries Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11397218/en?oq=US11397218.html (дата обращения: ДД.ММ.ГГГГ).