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Pat. 9991719 United States, Int. Cl.22 G05B 19/042, H02J 4/00, H02J 7/35, H02J 50/50, H02M 7/493, H02M 7/5387, H02P 29/00, H02M 1/32, H02M 5/458. Systems and methods for reducing circulating current and phase to phase imbalance in a parallel modular converter system : Appl. N 14/570165 : Filed 15.12.2014 : Pub. 05.06.2018 : / Matthew J. Krolak, Lijun Gao, Shengyi Liu ; Assignee Boeing Co ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9991719/en?oq=US9991719.html (дата обращения: ДД.ММ.ГГГГ).