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Pat. 10742138 United States, Int. Cl.22 H02M 7/5395, H01H 45/14, H02M 1/32, H02M 7/48. Device for protecting inverter using a buffer operating according to a state of a safety relay : Appl. N 16/299956 : Filed 12.03.2019 : Pub. 11.08.2020 : / Jin-Kyu Yang ; Assignee Lsis Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10742138/en?oq=US10742138.html (дата обращения: ДД.ММ.ГГГГ).