Библиографическая ссылка на патент
Pat. 10910942 United States, Int. Cl.22 H02M 1/42, H02M 1/32, H02M 3/156, H02M 1/00. Power factor improvement circuit and switching power supply device using same : Appl. N 16/829798 : Filed 25.03.2020 : Pub. 02.02.2021 : / Nobuyuki Hiasa ; Assignee Fuji Electric Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10910942/en?oq=US10910942.html (дата обращения: ДД.ММ.ГГГГ).