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Pat. 10840805 United States, Int. Cl.22 H02M 3/158, H02M 3/07, H03F 1/02, H03F 3/00, H03F 3/193, H03F 3/217. Integrated power supply and modulator for radio frequency power amplifiers : Appl. N 14/035445 : Filed 24.09.2013 : Pub. 17.11.2020 : / David J. Perreault, Wei Li, Yevgeniy A. Tkachenko ; Assignee Eta Devices Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10840805/en?oq=US10840805.html (дата обращения: ДД.ММ.ГГГГ).