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Pat. 10811984 United States, Int. Cl.22 H02M 3/335, H02M 1/32, H02M 3/28. Bidirectional DC-to-DC converter with voltage limitation device including switching element and voltage limitation capacitor : Appl. N 15/567667 : Filed 22.04.2016 : Pub. 20.10.2020 : / Dirk Schekulin ; Assignee Schmidhauser Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10811984/en?oq=US10811984.html (дата обращения: ДД.ММ.ГГГГ).