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Pat. 10972093 United States, Int. Cl.22 H03K 17/687, H02M 1/08, H02M 1/32, H02M 1/42, H02M 3/335, H02M 7/5387, H03K 5/24, H02M 1/00. Auxiliary circuit and power converter : Appl. N 16/226673 : Filed 20.12.2018 : Pub. 06.04.2021 : / Po-Chin Chuang ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10972093/en?oq=US10972093.html (дата обращения: ДД.ММ.ГГГГ).