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Pat. 10103720 United States, Int. Cl.22 H03K 7/00, H02M 3/158, H03K 7/06, H02M 1/00. Method and apparatus for a buck converter with pulse width modulation and pulse frequency modulation mode : Appl. N 14/516820 : Filed 17.10.2014 : Pub. 16.10.2018 : / Mark Childs, Jindrich Svorc ; Assignee Dialog Semiconductor Uk Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10103720/en?oq=US10103720.html (дата обращения: ДД.ММ.ГГГГ).