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Pat. 11211869 United States, Int. Cl.22 H02J 1/00, H02J 1/10, H02J 3/00, H02M 1/00, H02M 3/28, H02M 3/335. LLC power supply current-sharing and frequency locking mechanism : Appl. N 15/923438 : Filed 16.03.2018 : Pub. 28.12.2021 : / John G. Banaska, Chin-Hong Cheah ; Assignee National Instruments Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11211869/en?oq=US11211869.html (дата обращения: ДД.ММ.ГГГГ).