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Pat. 11128216 United States, Int. Cl.22 H02M 3/158, H02M 1/14, H02M 1/32. Converter, step-down method based on the converter and electronic device : Appl. N 16/097237 : Filed 30.11.2017 : Pub. 21.09.2021 : / Fukuan Wu ; Assignee Zhengzhou Yunhai Information Technology Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11128216/en?oq=US11128216.html (дата обращения: ДД.ММ.ГГГГ).