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Pat. 11381153 United States, Int. Cl.22 H02M 1/14, H02M 3/00, H02M 3/335, H05B 45/35, H05B 45/382, H02M 1/00. Method to balance the secondary winding current to improve the current control stability : Appl. N 16/988790 : Filed 10.08.2020 : Pub. 05.07.2022 : / Wei Xiong, Dane Sutherland ; Assignee Universal Douglas Lighting America ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11381153/en?oq=US11381153.html (дата обращения: ДД.ММ.ГГГГ).