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Pat. 9979297 United States, Int. Cl.22 H02M 3/335, G05F 1/652, H02M 1/42, H02M 3/315, H02M 3/337, H02M 1/00, H02M 7/48. Current resonant power supply device : Appl. N 15/637714 : Filed 29.06.2017 : Pub. 22.05.2018 : / Takeki Sugahara, Osamu Ohtake ; Assignee Sanken Electric Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9979297/en?oq=US9979297.html (дата обращения: ДД.ММ.ГГГГ).