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Pat. 9923448 United States, Int. Cl.22 H02M 1/12, H02M 1/42, H02M 7/217, H02M 7/23. Method and apparatus for regulated three-phase AC-to-DC conversion with high power factor and low harmonic distortions : Appl. N 15/347421 : Filed 09.11.2016 : Pub. 20.03.2018 : / Alexei V. Nikitin ; Assignee Avatekh Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9923448/en?oq=US9923448.html (дата обращения: ДД.ММ.ГГГГ).