Inventor
EUM HYUNCHUL
KR12 patents
⚠️ This page may combine multiple inventors who share the name “EUM HYUNCHUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEMICONDUCTOR COMPONENTS IND LLC
6 patentsUS10575377B2Feb 25, 2020
Line ripple reducer
SEMICONDUCTOR COMPONENTS IND LLC3 citations71
US10999905B2May 4, 2021
Current control for power converter
SEMICONDUCTOR COMPONENTS IND LLC6 citations63
US10708994B2Jul 7, 2020
System and method for shaping input current in light emitting diode (LED) system
SEMICONDUCTOR COMPONENTS IND LLC0 citations50
US10405382B2Sep 3, 2019
System and method for shaping input current in light emitting diode (LED) system
SEMICONDUCTOR COMPONENTS IND LLC0 citations50
US12476535B2Nov 18, 2025
Method and system of reducing total harmonic distortion of power-factor correction converters
SEMICONDUCTOR COMPONENTS IND LLC0 citations47
US12267004B2Apr 1, 2025
Methods and systems of power-factor-correction converters
SEMICONDUCTOR COMPONENTS IND LLC0 citations41
FAIRCHILD KOREA SEMICONDUCTOR LTD
6 patentsUS10412798B2Sep 10, 2019
Control system for phase-cut dimming
FAIRCHILD KOREA SEMICONDUCTOR LTD4 citations71
US9872349B2Jan 16, 2018
Control system for phase-cut dimming
FAIRCHILD KOREA SEMICONDUCTOR LTD4 citations71
US9826608B2Nov 21, 2017
Standby current supplier
FAIRCHILD KOREA SEMICONDUCTOR LTD3 citations71
US10178729B2Jan 8, 2019
Lighting circuit with internal reference thresholds for hybrid dimming
FAIRCHILD KOREA SEMICONDUCTOR LTD2 citations70
US10091849B2Oct 2, 2018
Hybrid dimming for lighting circuits
FAIRCHILD KOREA SEMICONDUCTOR LTD2 citations68
US9900938B2Feb 20, 2018
LED lighting circuit with ripple reducer
FAIRCHILD KOREA SEMICONDUCTOR LTD1 citations47