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Pat. 10447028 United States, Int. Cl.22 H02H 7/12, H02H 1/00, H02J 3/36, H02M 1/32, H02M 5/458, H02H 7/125, H02M 7/32. Bipole voltage source converter and control and operation thereof : Appl. N 15/563009 : Filed 30.03.2016 : Pub. 15.10.2019 : / Robin Gupta, Robert Whitehouse, Carl Barker ; Assignee General Electric Technology Gmbh ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10447028/en?oq=US10447028.html (дата обращения: ДД.ММ.ГГГГ).