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Pat. 9960686 United States, Int. Cl.22 H02M 3/335, H02M 1/36, H02M 1/00, H02M 1/42. System and method for detecting a loss of AC power in a switched-mode power supply : Appl. N 14/929029 : Filed 30.10.2015 : Pub. 01.05.2018 : / Weifu Yu, Nitin Agarwal, Mingping Mao, Guoxing Zhang ; Assignee Infineon Technologies Austria Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9960686/en?oq=US9960686.html (дата обращения: ДД.ММ.ГГГГ).