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Pat. 11043895 United States, Int. Cl.22 H02M 3/156, H05B 44/00. Buck converter including frequency-dependent back-flow circuit : Appl. N 16/415445 : Filed 17.05.2019 : Pub. 22.06.2021 : / Shengdie Lin, Yongchang Dai ; Assignee Ledvance Gmbh ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11043895/en?oq=US11043895.html (дата обращения: ДД.ММ.ГГГГ).