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Pat. 9930737 United States, Int. Cl.22 H05B 37/02, H05B 44/00, H02M 7/06. Non-linear analog signal conversion circuit configured of passive elements and lighting apparatus using the same : Appl. N 15/379642 : Filed 15.12.2016 : Pub. 27.03.2018 : / Dong Keun Yoon, Kwang Ho Lee ; Assignee Lg Innotek Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9930737/en?oq=US9930737.html (дата обращения: ДД.ММ.ГГГГ).