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Pat. 10784790 United States, Int. Cl.22 H02M 3/335, H02M 1/08. Resonant conversion apparatus with extended hold-up time and method of operating the same : Appl. N 16/502605 : Filed 03.07.2019 : Pub. 22.09.2020 : / Chia-Hsiong Huang, Yi-Hsun Chiu ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10784790/en?oq=US10784790.html (дата обращения: ДД.ММ.ГГГГ).