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Pat. 10630204 United States, Int. Cl.22 H02M 7/53, H02M 3/158, H02M 7/5387, H02M 7/5395, H02M 1/00. Network feedback unit to feed energy into a three-phase network and electrical drive system : Appl. N 15/771993 : Filed 28.10.2016 : Pub. 21.04.2020 : / Christof Schneggenburger, Dirk Schekulin ; Assignee Schmidhauser Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10630204/en?oq=US10630204.html (дата обращения: ДД.ММ.ГГГГ).