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Pat. 10116215 United States, Int. Cl.22 H02M 3/158, H03F 1/02, H03F 3/181, H03F 3/217. Buck-boost converter for an audio amplifier with multiple operations modes : Appl. N 14/612889 : Filed 03.02.2015 : Pub. 30.10.2018 : / Eric Swanson, John L. Melanson, John C. Tucker, Eric J. King ; Assignee Cirrus Logic Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10116215/en?oq=US10116215.html (дата обращения: ДД.ММ.ГГГГ).