Библиографическая ссылка на патент
Pat. 11101774 United States, Int. Cl.22 H03F 1/02, H02M 3/156, H02M 3/335, H03F 3/183, H02M 1/00, H03F 3/45. Audio power source with improved efficiency : Appl. N 16/533731 : Filed 06.08.2019 : Pub. 24.08.2021 : / David F. Baretich, Simon J. Broadley ; Assignee Biamp Systems LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11101774/en?oq=US11101774.html (дата обращения: ДД.ММ.ГГГГ).