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Pat. 10985666 United States, Int. Cl.22 H02M 3/335. Voltage supply for synchronous rectifier controller during low voltage output conditions : Appl. N 16/341543 : Filed 31.07.2018 : Pub. 20.04.2021 : / Yongtao Xie, Pengfei Cai, Shaobo Li, Zhanwu Wang ; Assignee Astec International Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10985666/en?oq=US10985666.html (дата обращения: ДД.ММ.ГГГГ).