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Pat. 10574135 United States, Int. Cl.22 G05F 1/70, H02M 1/08, H02M 1/42, H02M 7/217, H02M 1/00. Zero current detection circuit for bridgeless totem pole power factor correction converter and bridgeless totem pole power factor correction converter : Appl. N 16/366376 : Filed 27.03.2019 : Pub. 25.02.2020 : / Ken Matsuura, Min Lin ; Assignee Tdk Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10574135/en?oq=US10574135.html (дата обращения: ДД.ММ.ГГГГ).