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Pat. 10404157 United States, Int. Cl.22 H02M 1/34, H02M 7/155, H02M 7/162. AC-DC conversion device and method for controlling same by controlling the timing of multiple switch portions : Appl. N 15/777958 : Filed 07.01.2016 : Pub. 03.09.2019 : / Keisuke Hattori, Teruo Yoshino, Tomohisa Okami ; Assignee Toshiba Mitsubishi Electric Industrial Systems Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10404157/en?oq=US10404157.html (дата обращения: ДД.ММ.ГГГГ).