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Pat. 11431259 United States, Int. Cl.22 H02M 7/06, H02M 1/14, H02M 7/00, H02M 1/00. Power conversion device for reducing voltage ripple and voltage spike via connection of a transformer and a capacitor to a grounding surface : Appl. N 16/343508 : Filed 26.10.2016 : Pub. 30.08.2022 : / Naoya Yabuuchi ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11431259/en?oq=US11431259.html (дата обращения: ДД.ММ.ГГГГ).