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Pat. 9991788 United States, Int. Cl.22 H02M 3/158, H02M 1/42, H02M 7/06. Power factor correction circuit for regulating operating frequency control circuit of power factor correction circuit and control method thereof, electronic apparatus, and power adapter : Appl. N 15/388251 : Filed 22.12.2016 : Pub. 05.06.2018 : / Takumi Oe, Hiroyuki Murakami ; Assignee Rohm Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9991788/en?oq=US9991788.html (дата обращения: ДД.ММ.ГГГГ).