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Pat. 11277025 United States, Int. Cl.22 H02J 9/06, H02M 3/145. Redundant DC input power supplies having back-feed protection : Appl. N 17/118724 : Filed 11.12.2020 : Pub. 15.03.2022 : / Rochie Ligaya Sedillo Libby, Neil Maderas Reyes, Khanderao Madhav Gaikwad ; Assignee Astec International Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11277025/en?oq=US11277025.html (дата обращения: ДД.ММ.ГГГГ).