Inventor · disambiguated record
Hyun-Chul Eum
Also filed as: EUM HYUN-CHUL
24 granted patents·3 pending applications·108 citations·filing 2013–2019
94Inventor score
Files withFAIRCHILD KOREA SEMICONDUCTOR LTD15SEMICONDUCTOR COMPONENTS IND LLC9FAIRCHILD KR SEMICONDUCTOR LTD3
Top patents by PatentIndex Score
27 records- 0198US9467137B2Input current control method, switch control circuit and power supply including the switch control circuitFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2014·Granted Oct 11, 2016·45 cites·29 claims
- 0297US10362643B2LED driver circuit and LED driving methodFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jul 23, 2019·34 cites·16 claims
- 0393US10004121B2LED driving deviceFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jun 19, 2018·13 cites·20 claims
- 0481US10291130B2System and method for controlling output signal of power converterFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted May 14, 2019·2 cites·21 claims
- 0580US10880966B2Multiple linear regulationSEMICONDUCTOR COMPONENTS IND LLC·Filed 2018·Granted Dec 29, 2020·2 cites·19 claims
- 0678US9800136B2Active damper and power supply including the sameFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2014·Granted Oct 24, 2017·4 cites·28 claims
- 0777US10241143B2Sensing resistor short determiner, switch control circuit including the same and power supply including the switch control circuitFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2014·Granted Mar 26, 2019·3 cites·24 claims
- 0871US11025169B2Overload protection for power converterSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Granted Jun 1, 2021·0 cites·20 claims
- 0969US10516327B2System and method for controlling switching device in power converterSEMICONDUCTOR COMPONENTS IND LLC·Filed 2017·Granted Dec 24, 2019·2 cites·19 claims
- 1069US9362843B2Switch control device, power supply device comprising the same, and driving method of power supply device utilizing turn-on period half-on time point detectionFAIRCHILD KR SEMICONDUCTOR LTD·Filed 2013·Granted Jun 7, 2016·2 cites·22 claims
- 1168US11031872B2Controlling output voltage for power converterSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Granted Jun 8, 2021·0 cites·12 claims
- 1267US10826399B2System and method for controlling output signal of power converterSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Granted Nov 3, 2020·0 cites·20 claims
- 1364US10541617B2Overload protection for power converterFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jan 21, 2020·0 cites·18 claims
- 1464US10530259B2LED driving deviceSEMICONDUCTOR COMPONENTS IND LLC·Filed 2018·Granted Jan 7, 2020·0 cites·20 claims
- 1564US10326370B2Controlling output voltage for power converterFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jun 18, 2019·0 cites·15 claims
- 1664US9748849B2Power supplyFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2014·Granted Aug 29, 2017·1 cites·17 claims
- 1763US11026310B2LED driver circuit and LED driving methodSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Granted Jun 1, 2021·0 cites·3 claims
- 1860US2019170803A1Sensing resistor short determiner, switch control circuit including the same and power supply including the switch control circuitSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Application pending·0 cites
- 1955US10231295B2Multiple linear regulationFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Mar 12, 2019·0 cites·9 claims
- 2054US10637350B2Power factor correction circuit and driving method thereofSEMICONDUCTOR COMPONENTS IND LLC·Filed 2018·Granted Apr 28, 2020·0 cites·17 claims
- 2151US9935538B2Power factor correction circuit and driving method thereofFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2016·Granted Apr 3, 2018·0 cites·17 claims
- 2248US9680455B2Clamping circuit, power supply device including the same and driving method of power supply deviceFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2014·Granted Jun 13, 2017·0 cites·12 claims
- 2348US9502983B2Power supply device capable of varying switching frequency according to load conditionFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2015·Granted Nov 22, 2016·0 cites·11 claims
- 2447US9647564B2Power supply deviceFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2015·Granted May 9, 2017·0 cites·32 claims
- 2546US2014313798A1Switch control device, power supply device comprising the same and driving method of power supply deviceFAIRCHILD KR SEMICONDUCTOR LTD·Filed 2014·Application pending·0 cites
- 2643US9979303B2Primary side regulation power supply deviceFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2015·Granted May 22, 2018·0 cites·16 claims
- 2740US2015003118A1Start-up circuit, switch control circuit having the start-up circuit and power supply device having the switch control circuitFAIRCHILD KR SEMICONDUCTOR LTD·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →