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Pat. 10332668 United States, Int. Cl.22 H01F 27/28, H01F 27/24, H01F 27/29, H02M 1/44, H02M 7/217. Copper winding structure, transformer and full-wave rectifier circuit having the same : Appl. N 15/975768 : Filed 10.05.2018 : Pub. 25.06.2019 : / Zengyi Lu, Xingkuan Guo, Chunmei Wang, Jun Sun ; Assignee Delta Electronics Shanghai Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10332668/en?oq=US10332668.html (дата обращения: ДД.ММ.ГГГГ).