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Pat. 10432110 United States, Int. Cl.22 H02M 7/523, H02M 7/48, H03F 3/217. Power converter having resonant frequencies around two and four times the switching frequency : Appl. N 16/012099 : Filed 19.06.2018 : Pub. 01.10.2019 : / Min Lin, Ken Matsuura ; Assignee Tdk Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10432110/en?oq=US10432110.html (дата обращения: ДД.ММ.ГГГГ).