Inventor · disambiguated record
Kuo-Chi Liu
Also filed as: LIU KUO-CHI
58 granted patents·21 pending applications·115 citations·filing 2006–2025
97Inventor score
Files withRICHTEK TECHNOLOGY CORP65CHEN WEN-WEI3LIU KUO-CHI3HON HAI PREC IND CO LTD2HUANG PEI-CHENG2
Top patents by PatentIndex Score
79 records- 0197US12136876B2Switched capacitor voltage converter circuitRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Nov 5, 2024·6 cites·22 claims
- 0297US11671002B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Jun 6, 2023·5 cites·22 claims
- 0397US11646654B2Resonant switching power converter capable of performing discharging operation in a sequential orderRICHTEK TECHNOLOGY CORP·Filed 2021·Granted May 9, 2023·6 cites·17 claims
- 0496US11736007B2Resonant switching power converter having charging/discharging duration period related to charging/discharging resonant frequencyRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Aug 22, 2023·4 cites·14 claims
- 0596US9853486B2Resonant wireless power receiver circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Dec 26, 2017·24 cites·30 claims
- 0695US11682966B2Pipeline resonant and non-resonant switched capacitor converter circuitRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Jun 20, 2023·3 cites·41 claims
- 0794US11601048B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Mar 7, 2023·3 cites·19 claims
- 0892US12136877B2Switched capacitor voltage converter circuit and switched capacitor voltage conversion methodRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Nov 5, 2024·2 cites·17 claims
- 0992US12136875B2Switched capacitor voltage converter circuit and switched capacitor voltage conversion methodRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Nov 5, 2024·2 cites·20 claims
- 1092US11955884B2Resonant switching power converter circuitRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Apr 9, 2024·2 cites·43 claims
- 1192US11716020B2SCC-based DC-DC power conversion system capable of receiving switching control adjustable by output voltage thereof, and power conversion method thereofRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Aug 1, 2023·2 cites·12 claims
- 1291US11742751B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Aug 29, 2023·2 cites·20 claims
- 1390US11418112B2Power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Aug 16, 2022·2 cites·19 claims
- 1490US11411493B2Two-stage power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Aug 9, 2022·2 cites·14 claims
- 1588US11552547B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Jan 10, 2023·4 cites·30 claims
- 1678US12176811B2Switched capacitor voltage converter circuit and switched capacitor converter control methodRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Dec 24, 2024·1 cites·25 claims
- 1778US11283298B2Resonant wireless power transmitter circuit and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Granted Mar 22, 2022·1 cites·6 claims
- 1877US9059585B2Self-discharge control for an EMI filter capacitorRICHTEK TECHNOLOGY CORP·Filed 2012·Granted Jun 16, 2015·5 cites·22 claims
- 1977US8698476B2Control circuit and method for a current mode controlled power converterCHEN WEN-WEI·Filed 2011·Granted Apr 15, 2014·6 cites·10 claims
- 2076US9203295B2Bleeding circuit and method for reducing power consumption of an EMI filterLEE YEN-TE·Filed 2012·Granted Dec 1, 2015·5 cites·11 claims
- 2175US2025385613A1Power conversion circuit and control method thereof using pulse-width modulationRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 2274US9853505B2Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereofRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Dec 26, 2017·2 cites·36 claims
- 2374US8823340B2Control circuit and method for a buck-boost switching converterCHEN WEN-WEI·Filed 2011·Granted Sep 2, 2014·5 cites·26 claims
- 2474US2025364898A1Power convertor and control method thereof for reducing reverse recovery charge of low-side transistorRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 2574US2025357866A1Power conversion circuit and control method thereof for driving high-side transistor and low-side transistor by using current flowing through resonant capacitor, voltage across resonant capacitor, compensation signal, and input voltageRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 2673US8174281B2Method and circuit for tracking maximum power of a photo-voltaic arrayTSENG SHENG-YU·Filed 2010·Granted May 8, 2012·5 cites·10 claims
- 2772US12431802B2Multilevel buck converter with valley current mode control and dual slope compensationRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Sep 30, 2025·0 cites·20 claims
- 2872US2025385611A1Resonant power conversion circuit and control method thereof with high-side transistor achieving zero-voltage switching during startupRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 2972US2025309750A1Power conversion circuit and control method thereof for acheiving zero-voltage switching of high-side transistorRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 3067US2025247010A1Power conversion circuit automatically switching between flyback mode and resonant mode and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2025·Application pending·0 cites
- 3164US12273035B2Control circuit and method for use in stackable multiphase power converterRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Apr 8, 2025·0 cites·27 claims
- 3264US9853506B2Resonant wireless power receiver circuit and control circuit and wireless power conversion method thereofRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Dec 26, 2017·1 cites·24 claims
- 3363US7365502B2Device for driving light sourcesHON HAI PREC IND CO LTD·Filed 2006·Granted Apr 29, 2008·3 cites·18 claims
- 3463US2020153285A1Wireless power transmitter circuit and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Application pending·0 cites
- 3561US12456913B2Resonant switched capacitor voltage converter and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Oct 28, 2025·0 cites·20 claims
- 3661US8456094B2Light emitting device open/short detection circuitHUANG PEI-CHENG·Filed 2011·Granted Jun 4, 2013·2 cites·15 claims
- 3761US8350539B2Frequency modulation control of a buck-boost power converterRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Jan 8, 2013·2 cites·20 claims
- 3860US8582322B2Power reduction of a power supply unit at light loading or no loadingLIU KUO-CHI·Filed 2012·Granted Nov 12, 2013·2 cites·14 claims
- 3960US2025211101A1Resonant power conversion circuit and control method thereof for balancing duty cycles of high-side transistor and low-side transistorRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4060US2025300558A1Hybrid switching converterRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4159US2025192672A1Resonant power converter and conversion control circuit and conversion control method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4259US2025202351A1Resonant power convertor and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4358US8064620B2Driver circuit and driving method for electrostatic loudspeakerHUANG PEI-CHENG·Filed 2008·Granted Nov 22, 2011·1 cites·13 claims
- 4458US7525257B2Device for driving light sourcesHON HAI PREC IND CO LTD·Filed 2006·Granted Apr 28, 2009·1 cites·20 claims
- 4558US2025266758A1Power conversion circuit automatically switching between flyback mode and resonant mode and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4658US2025112549A1Bidirectional switched capacitor converter with current limiting and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 4757US12362665B2Power converter for reducing switching loss and enhancing system efficiency and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Jul 15, 2025·0 cites·26 claims
- 4857US8368375B2Switching regulator with transient control function and control circuit and method thereforRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Feb 5, 2013·2 cites·12 claims
- 4957US2024372467A1Multi-phase conversion circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
- 5057US2025158513A1Pre-bias voltage control circuit and method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Application pending·0 cites
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →