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Pat. 11404991 United States, Int. Cl.22 H02P 1/00, H02M 5/458, H02P 27/08, H02P 29/02. Variable frequency drive DC bus capacitor configuration to limit DC bus short circuit current : Appl. N 17/143254 : Filed 07.01.2021 : Pub. 02.08.2022 : / Mahesh M. Swamy, Nathan T. Seipel ; Assignee Yaskawa America Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11404991/en?oq=US11404991.html (дата обращения: ДД.ММ.ГГГГ).