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Pat. 10236685 United States, Int. Cl.22 H02J 3/06, H02J 3/01, H02J 3/18, H02M 5/458. Power electronic voltage tranforming apparatus with single-phase power electronic transformers : Appl. N 15/802438 : Filed 02.11.2017 : Pub. 19.03.2019 : / Zeliang Shu, Linghui Meng, Wenjun Mao, Yuan Lei, Yi Qian, Xiaoqiong He ; Assignee Southwest Jiaotong University ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10236685/en?oq=US10236685.html (дата обращения: ДД.ММ.ГГГГ).