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Pat. 10236787 United States, Int. Cl.22 H02M 7/04, H02M 1/32, H02M 1/00, H02M 1/08, H02M 1/084, H02M 7/162. Device for operating a rectifier, in particular a semi-controlled rectifier bridge, and method for operating a rectifier : Appl. N 15/306703 : Filed 13.04.2015 : Pub. 19.03.2019 : / Norbert Hettel, Hans Jurgen Kollar ; Assignee Sew Eurodrive Gmbh and Co Kg ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10236787/en?oq=US10236787.html (дата обращения: ДД.ММ.ГГГГ).