Библиографическая ссылка на патент
Pat. 9887648 United States, Int. Cl.22 G05B 5/00, H02H 7/08, H02M 5/458, H02P 1/00, H02P 3/00, H02P 6/10, H02P 7/00, H02H 7/085, H02M 1/00, H02M 1/14. Motor speed control with speed foldback for phase imbalance protection : Appl. N 14/068579 : Filed 31.10.2013 : Pub. 06.02.2018 : / Joseph Raymond Pottebaum, John Alan Cairo, Brian W. Geoffrey, William C. Phillips ; Assignee Yaskawa America Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9887648/en?oq=US9887648.html (дата обращения: ДД.ММ.ГГГГ).