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Pat. 10770975 United States, Int. Cl.22 H02M 3/335, H03F 1/02, H03F 1/32, H03F 1/56, H03F 3/195, H03F 3/24, H03K 5/08, H03K 17/687, H02M 1/00. Resonant power converters with switchable resonant modes : Appl. N 16/239812 : Filed 04.01.2019 : Pub. 08.09.2020 : / Hengchun Mao, Xuezhong Jia ; Assignee Hengchun Mao, Xuezhong Jia ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10770975/en?oq=US10770975.html (дата обращения: ДД.ММ.ГГГГ).