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Pat. 10340787 United States, Int. Cl.22 H02M 1/00, H02M 1/42, H02H 9/00, H02M 1/32, H02M 1/36, H02M 7/06. Power factor correction stage control during start-up for efficient use of a negative temperature coefficient thermistor : Appl. N 14/782988 : Filed 17.04.2015 : Pub. 02.07.2019 : / Jun Liu, Qingfeng Liu, Zhaotu Fan, Zhe Li ; Assignee Astec International Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10340787/en?oq=US10340787.html (дата обращения: ДД.ММ.ГГГГ).