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Pat. 10971994 United States, Int. Cl.22 H02M 1/32, H02M 7/49, H02M 7/483. Artificial stable short circuit failure mode function by using parallel modules for each switching function : Appl. N 16/543764 : Filed 19.08.2019 : Pub. 06.04.2021 : / Juergen Steinke, Philippe Maibach ; Assignee Abb Power Grids Switzerland Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10971994/en?oq=US10971994.html (дата обращения: ДД.ММ.ГГГГ).