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Pat. 11063532 United States, Int. Cl.22 H02M 7/538, H02M 1/42, H02M 7/5387, H02M 1/00, H02M 1/14. Power conversion device superimposing a tertiary harmonic wave : Appl. N 16/603350 : Filed 18.05.2017 : Pub. 13.07.2021 : / Yoshinori Tsuruma ; Assignee Toshiba Mitsubishi Electric Industrial Systems Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11063532/en?oq=US11063532.html (дата обращения: ДД.ММ.ГГГГ).