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Pat. 10164538 United States, Int. Cl.22 H02M 3/28, G05F 1/46, H02M 1/08, H02M 3/335. Dual-capacitors-based AC line frequency low voltage DC power supply circuit : Appl. N 15/622470 : Filed 14.06.2017 : Pub. 25.12.2018 : / Chi-Keung Tang, Chiu-Sing Celement Tse, Ngai Wa Wong ; Assignee Mosway Semiconductor Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10164538/en?oq=US10164538.html (дата обращения: ДД.ММ.ГГГГ).