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Pat. 11277896 United States, Int. Cl.22 H05B 45/355, H02M 1/42, H02M 7/06, H03F 3/45, H03G 3/30. Active gain control for power factor correction : Appl. N 16/912583 : Filed 25.06.2020 : Pub. 15.03.2022 : / James H. Mohan ; Assignee Erp Power LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11277896/en?oq=US11277896.html (дата обращения: ДД.ММ.ГГГГ).