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Pat. 10170987 United States, Int. Cl.22 H02M 3/158, G05F 1/46, H02M 3/157, H02M 1/00, H02M 1/44. Control circuit of power converter with internal signal generator and related method : Appl. N 15/388923 : Filed 22.12.2016 : Pub. 01.01.2019 : / Yu-Nung Tsai, Yi-Chun Chen ; Assignee Richtek Technology Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10170987/en?oq=US10170987.html (дата обращения: ДД.ММ.ГГГГ).