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Pat. 10128756 United States, Int. Cl.22 H02J 3/38, H02M 3/158, H02M 3/335, H02M 1/00, H02M 3/155. DC-DC converter with high transformer ratio : Appl. N 15/319563 : Filed 07.05.2015 : Pub. 13.11.2018 : / Yanhu Zhang, Bing Hu, Ruilin Zhu, Liying Xue ; Assignee Sungrow Power Supply Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10128756/en?oq=US10128756.html (дата обращения: ДД.ММ.ГГГГ).