Inventor · disambiguated record
Hangseok Choi
Also filed as: CHOI HANGSEOK
51 granted patents·11 pending applications·213 citations·filing 2008–2025
97Inventor score
Files withSAMSUNG ELECTRONICS CO LTD29FAIRCHILD SEMICONDUCTOR11CHOI HANGSEOK10FAIRCHILD KOREA SEMICONDUCTOR LTD6SEMICONDUCTOR COMPONENTS IND LLC6
Top patents by PatentIndex Score
62 records- 0196US10608544B2Automatic control of synchronous rectifier turn-off thresholdSEMICONDUCTOR COMPONENTS IND LLC·Filed 2018·Granted Mar 31, 2020·14 cites·18 claims
- 0296US8098505B1Phase management for interleaved power factor correctionCHOI HANGSEOK·Filed 2009·Granted Jan 17, 2012·84 cites·12 claims
- 0393US12113381B2Electronic device for charging multiple batteriesSAMSUNG ELECTRONICS CO LTD·Filed 2021·Granted Oct 8, 2024·3 cites·15 claims
- 0493US10186948B2Burst mode control in resonant convertersFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jan 22, 2019·7 cites·20 claims
- 0590US10693379B2Short-circuit protection using pulse width modulation (PWM) for resonant convertersFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jun 23, 2020·5 cites·20 claims
- 0689US10090757B2Power factor correction circuit and methodFAIRCHILD SEMICONDUCTOR·Filed 2017·Granted Oct 2, 2018·5 cites·18 claims
- 0787US10027235B2Self-tuning adaptive dead time control for continuous conduction mode and discontinuous conduction mode operation of a flyback converterFAIRCHILD SEMICONDUCTOR·Filed 2016·Granted Jul 17, 2018·5 cites·19 claims
- 0886US12323044B23-level-inverting buck-boost converter and control method thereofSAMSUNG ELECTRONICS CO LTD·Filed 2022·Granted Jun 3, 2025·1 cites·20 claims
- 0985US10374516B2Non zero-voltage switching (ZVS) detection in resonant convertersFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Aug 6, 2019·3 cites·18 claims
- 1085US10193455B2Resonant capacitor stabilizer in resonant convertersFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jan 29, 2019·3 cites·19 claims
- 1183US10333416B2System and method for controlling voltage control loop in power converterFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2017·Granted Jun 25, 2019·3 cites·19 claims
- 1282US8482942B2Method and apparatus for bridgeless power factor correctionCHOI HANGSEOK·Filed 2010·Granted Jul 9, 2013·7 cites·19 claims
- 1382US8085559B1Current mode control for resonant converter circuitsCHOI HANGSEOK·Filed 2009·Granted Dec 27, 2011·18 cites·14 claims
- 1481US8817498B2Hybrid control techniques for series resonant converterCHOI HANGSEOK·Filed 2012·Granted Aug 26, 2014·6 cites·16 claims
- 1580US10164543B2System and method for controlling power converter with adaptive turn-on delaySEMICONDUCTOR COMPONENTS IND LLC·Filed 2017·Granted Dec 25, 2018·3 cites·18 claims
- 1680US8576583B2Sampled charge control for resonant converterCHOI HANGSEOK·Filed 2010·Granted Nov 5, 2013·6 cites·20 claims
- 1779US10396571B2Adaptive overvoltage protection for adaptive power adaptersFAIRCHILD SEMICONDUCTOR·Filed 2016·Granted Aug 27, 2019·5 cites·19 claims
- 1879US9991810B2Gate pre-positioning for fast turn-off of synchronous rectifierFAIRCHILD SEMICONDUCTOR·Filed 2016·Granted Jun 5, 2018·3 cites·19 claims
- 1975US10110137B1Automatic control of synchronous rectifier turn-off thresholdSEMICONDUCTOR COMPONENTS IND LLC·Filed 2017·Granted Oct 23, 2018·2 cites·9 claims
- 2074US10256735B2Power supply with near valley switchingFAIRCHILD SEMICONDUCTOR·Filed 2016·Granted Apr 9, 2019·2 cites·14 claims
- 2174US8143845B2Cable voltage drop compensation for battery chargersCHOI HANGSEOK·Filed 2008·Granted Mar 27, 2012·12 cites·20 claims
- 2273US9812976B2Control of a startup circuit using a feedback pin of a PWM controller integrated circuit chipFAIRCHILD SEMICONDUCTOR·Filed 2016·Granted Nov 7, 2017·2 cites·20 claims
- 2371US10879789B2System and method for controlling voltage control loop in power converterSEMICONDUCTOR COMPONENTS IND LLC·Filed 2019·Granted Dec 29, 2020·1 cites·20 claims
- 2471US2025350199A1Power converter and electronic device including sameSAMSUNG ELECTRONICS CO LTD·Filed 2025·Application pending·0 cites
- 2570US12499823B2Electronic device comprising display, and operation method thereorSAMSUNG ELECTRONICS CO LTD·Filed 2024·Granted Dec 16, 2025·0 cites·15 claims
- 2670US12154497B2Electronic device including power supply circuitSAMSUNG ELECTRONICS CO LTD·Filed 2023·Granted Nov 26, 2024·0 cites·13 claims
- 2770US10826385B2Power factor correction circuit with calculated duty compensation and driving method thereofSEMICONDUCTOR COMPONENTS IND LLC·Filed 2018·Granted Nov 3, 2020·1 cites·20 claims
- 2870US10630170B2Power factor correction circuit and methodFAIRCHILD SEMICONDUCTOR·Filed 2018·Granted Apr 21, 2020·1 cites·17 claims
- 2969US10897206B2Power supply with near valley switching in near valley window time periodFAIRCHILD SEMICONDUCTOR·Filed 2019·Granted Jan 19, 2021·1 cites·21 claims
- 3068US11177681B2Electronic device and method for controlling recharge of batterySAMSUNG ELECTRONICS CO LTD·Filed 2019·Granted Nov 16, 2021·1 cites·20 claims
- 3167US10103618B2Power factor correction circuit with calculated duty compensation and driving method thereofFAIRCHILD KOREA SEMICONDUCTOR LTD·Filed 2016·Granted Oct 16, 2018·1 cites·15 claims
- 3267US9825548B2Adaptive turn-off trigger blanking for synchronous rectificationFAIRCHILD SEMICONDUCTOR·Filed 2016·Granted Nov 21, 2017·1 cites·20 claims
- 3366US11893931B2Electronic device including power supply circuitSAMSUNG ELECTRONICS CO LTD·Filed 2022·Granted Feb 6, 2024·0 cites·16 claims
- 3464US9083247B2Synchronous rectifier control techniques for a resonant converterCHOI HANGSEOK·Filed 2012·Granted Jul 14, 2015·2 cites·11 claims
- 3562US12294235B2Electronic device for charging battery based on voltage of interface and method for controlling sameSAMSUNG ELECTRONICS CO LTD·Filed 2021·Granted May 6, 2025·0 cites·20 claims
- 3662US12158495B2Method and apparatus for diagnosing electronic apparatusSAMSUNG ELECTRONICS CO LTD·Filed 2022·Granted Dec 3, 2024·0 cites·20 claims
- 3761US2025149986A1Power input circuit, electronic device including power input circuit, and method for operating sameSAMSUNG ELECTRONICS CO LTD·Filed 2025·Application pending·0 cites
- 3861US2025112503A1Electronic device for wirelessly receiving power, and method for operating sameSAMSUNG ELECTRONICS CO LTD·Filed 2024·Application pending·0 cites
- 3960US8279630B2Continuous conduction mode power factor correction circuit with reduced sensing requirementsCHOI HANGSEOK·Filed 2008·Granted Oct 2, 2012·5 cites·19 claims
- 4059US2024022090A1Electronic device for charging plurality of batteriesSAMSUNG ELECTRONICS CO LTD·Filed 2023·Application pending·0 cites
- 4157US12308668B2Wireless power receiving apparatus for carrying out in-band communication with wireless power transmitting apparatus and method for carrying out in-band communication in wireless power receiving apparatusSAMSUNG ELECTRONICS CO LTD·Filed 2023·Granted May 20, 2025·0 cites·19 claims
- 4257US10008950B2Adaptive turn-off trigger blanking for synchronous rectificationFAIRCHILD SEMICONDUCTOR·Filed 2017·Granted Jun 26, 2018·0 cites·20 claims
- 4355US12101019B2Electronic device and method of operating the sameSAMSUNG ELECTRONICS CO LTD·Filed 2022·Granted Sep 24, 2024·0 cites·22 claims
- 4455US12021446B2Overcurrent protection device of power supply and operating method thereofSAMSUNG ELECTRONICS CO LTD·Filed 2022·Granted Jun 25, 2024·0 cites·20 claims
- 4555US11476694B2Electronic device including resonant charging circuitSAMSUNG ELECTRONICS CO LTD·Filed 2020·Granted Oct 18, 2022·0 cites·20 claims
- 4655US2023117241A1Charging circuitry with three-level converter and method for controlling balancing in the sameSAMSUNG ELECTRONICS CO LTD·Filed 2022·Application pending·0 cites
- 4754US12107435B2PWM method for wireless charging systemSAMSUNG ELECTRONICS CO LTD·Filed 2023·Granted Oct 1, 2024·0 cites·20 claims
- 4854US2025141273A1Electronic device comprising switching charger and operation methodSAMSUNG ELECTRONICS CO LTD·Filed 2025·Application pending·0 cites
- 4953US9722672B2Wireless communication device and method of operating the sameSAMSUNG ELECTRONICS CO LTD·Filed 2017·Granted Aug 1, 2017·0 cites·20 claims
- 5053US2023420960A1Electronic device including battery pack, and operation method of electronic deviceSAMSUNG ELECTRONICS CO LTD·Filed 2023·Application pending·0 cites
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →