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Pat. 10128766 United States, Int. Cl.22 H02M 3/335, H02J 7/00, H02J 9/06, H02M 3/156, H02M 3/337, H02M 7/538. Method and apparatus for bi-directional switched mode power supply with fixed frequency operation : Appl. N 15/689672 : Filed 29.08.2017 : Pub. 13.11.2018 : / Joan Wichard Strijker, Jeroen Kleinpenning ; Assignee Nxp Bv ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10128766/en?oq=US10128766.html (дата обращения: ДД.ММ.ГГГГ).