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Pat. 11450477 United States, Int. Cl.22 H01F 27/29, B60L 53/16, B60L 53/30, H01F 17/04, H01F 27/26, H01F 27/30, H01F 30/02, H01F 30/12, H02M 1/42, H02M 7/04, H02M 7/219. Phase-shift autotransformer, multi-pulse rectifier systems and fast charging : Appl. N 16/836834 : Filed 31.03.2020 : Pub. 20.09.2022 : / Xiaohang Yu, Lixin Tang, Geng Niu ; Assignee Karma Automotive LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11450477/en?oq=US11450477.html (дата обращения: ДД.ММ.ГГГГ).