Inventor · disambiguated record
Hyunchul Eum
Also filed as: EUM HYUNCHUL
12 granted patents·25 citations·filing 2015–2023
87Inventor score
Top patents by PatentIndex Score
12 records- 0183US10412798B2Control system for phase-cut dimmingFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Sep 10, 2019·4 cites·14 claims
- 0282US9872349B2Control system for phase-cut dimmingFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2015·Granted Jan 16, 2018·4 cites·10 claims
- 0381US10999905B2Current control for power converterSEMICONDUCTOR COMPONENTS IND LLC·Filed 2020·Granted May 4, 2021·6 cites·9 claims
- 0480US10575377B2Line ripple reducerSEMICONDUCTOR COMPONENTS IND LLC·Filed 2018·Granted Feb 25, 2020·3 cites·20 claims
- 0578US9826608B2Standby current supplierFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2015·Granted Nov 21, 2017·3 cites·15 claims
- 0675US10178729B2Lighting circuit with internal reference thresholds for hybrid dimmingFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jan 8, 2019·2 cites·20 claims
- 0773US10091849B2Hybrid dimming for lighting circuitsFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Oct 2, 2018·2 cites·18 claims
- 0865US9900938B2LED lighting circuit with ripple reducerFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2016·Granted Feb 20, 2018·1 cites·20 claims
- 0961US10708994B2System and method for shaping input current in light emitting diode (LED) systemSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Granted Jul 7, 2020·0 cites·20 claims
- 1060US12476535B2Method and system of reducing total harmonic distortion of power-factor correction convertersSEMICONDUCTOR COMPONENTS IND LLC·Filed 2023·Granted Nov 18, 2025·0 cites·17 claims
- 1157US10405382B2System and method for shaping input current in light emitting diode (LED) systemSEMICONDUCTOR COMPONENTS IND LLC·Filed 2017·Granted Sep 3, 2019·0 cites·20 claims
- 1249US12267004B2Methods and systems of power-factor-correction convertersSEMICONDUCTOR COMPONENTS IND LLC·Filed 2023·Granted Apr 1, 2025·0 cites·20 claims
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