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Pat. 10742113 United States, Int. Cl.22 H02M 1/42, G01R 19/175, H02M 1/08, H02M 7/162, H03K 5/1536, H02M 7/219. Control circuit and control method for outputting pulse width modulation control signal with zero-crossing detection : Appl. N 16/560986 : Filed 04.09.2019 : Pub. 11.08.2020 : / Kang Guo, Hongyuan Jin, Hongbao Wang ; Assignee Delta Electronics Shanghai Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10742113/en?oq=US10742113.html (дата обращения: ДД.ММ.ГГГГ).