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Pat. 11177757 United States, Int. Cl.22 H02P 27/06, H02M 7/5387, H02P 21/22. Power conversion device : Appl. N 16/754755 : Filed 07.12.2017 : Pub. 16.11.2021 : / Sota Sano, Akira Satake, Kiyoshi Ohishi, Yuki Yokokura, Tenjiro Hiwatari ; Assignee Mitsubishi Electric Corp, Nagaoka University of Technology ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11177757/en?oq=US11177757.html (дата обращения: ДД.ММ.ГГГГ).