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Pat. 9979316 United States, Int. Cl.22 G05F 1/63, G05F 1/10, G05F 1/30, G05F 1/613, H02J 50/12, H02J 50/80, H02M 7/219, H02M 7/23, H02M 7/25, H03F 3/217, H02M 1/00, H02M 7/48. Impedance compensation based on ratio of bus voltage and amplifier fundamental AC output voltage : Appl. N 15/587606 : Filed 05.05.2017 : Pub. 22.05.2018 : / Conor Joseph Rochford ; Assignee Witricity Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9979316/en?oq=US9979316.html (дата обращения: ДД.ММ.ГГГГ).