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Pat. 11527948 United States, Int. Cl.22 H02P 21/00, G06F 17/14, H02M 1/12, H02M 7/44, H02P 4/00, H02P 21/22, H03H 17/06. Signal processor, filter, control circuit for power converter circuit, interconnection inverter system and PWM converter system : Appl. N 17/804877 : Filed 01.06.2022 : Pub. 13.12.2022 : / Akihiro Ohori, Nobuyuki Hattori ; Assignee Daihen Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11527948/en?oq=US11527948.html (дата обращения: ДД.ММ.ГГГГ).