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Pat. 10554143 United States, Int. Cl.22 H02M 5/458, G01R 1/20, G01R 15/04, H02J 3/38, H02M 1/00. SYNDEM converter-a power electronic converter with all voltage and current sensors connected to a common reference point : Appl. N 16/236485 : Filed 29.12.2018 : Pub. 04.02.2020 : / Qingchang Zhong ; Assignee Qingchang Zhong ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10554143/en?oq=US10554143.html (дата обращения: ДД.ММ.ГГГГ).