Assignee
RICHTEK TECHNOLOGY CORP
TW·596 granted patents·205 pending applications·4,585 citations·filing 2002–2025
Top patents by PatentIndex Score
801 records- 0199US9225196B2Rectifying-and-modulating circuit and wireless power receiver incorporating the sameRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Dec 29, 2015·271 cites·4 claims
- 0299US7202653B2High efficiency power converterRICHTEK TECHNOLOGY CORP·Filed 2005·Granted Apr 10, 2007·1.5k cites·5 claims
- 0398US12009753B2Half-bridge flyback power converter and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Jun 11, 2024·4 cites·12 claims
- 0497US12136876B2Switched capacitor voltage converter circuitRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Nov 5, 2024·6 cites·22 claims
- 0597US12101020B2Multi-mode power system and power conversion circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Sep 24, 2024·6 cites·30 claims
- 0697US11671002B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Jun 6, 2023·5 cites·22 claims
- 0797US11646654B2Resonant switching power converter capable of performing discharging operation in a sequential orderRICHTEK TECHNOLOGY CORP·Filed 2021·Granted May 9, 2023·6 cites·17 claims
- 0897US10103616B1Flyback power converter circuit with active clamping and zero voltage switching and conversion control circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2018·Granted Oct 16, 2018·19 cites·24 claims
- 0997US9781786B2Control circuit and method of a LED driverRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Oct 3, 2017·39 cites·20 claims
- 1097US7411316B2Dual-input power converter and control methods thereofRICHTEK TECHNOLOGY CORP·Filed 2006·Granted Aug 12, 2008·89 cites·24 claims
- 1196US12136885B2Resonant half-bridge flyback power converter with skipping cycles and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2024·Granted Nov 5, 2024·2 cites·13 claims
- 1296US11962247B2Resonant half-bridge flyback power converter with skipping cycles and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Apr 16, 2024·2 cites·15 claims
- 1396US11736007B2Resonant 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
- 1496US9853486B2Resonant wireless power receiver circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Dec 26, 2017·24 cites·30 claims
- 1596US7701305B2Frequency jittering control for varying the switching frequency of a power supplyRICHTEK TECHNOLOGY CORP·Filed 2007·Granted Apr 20, 2010·54 cites·24 claims
- 1696US7501805B2Circuit and method for soft start from a residual voltageRICHTEK TECHNOLOGY CORP·Filed 2006·Granted Mar 10, 2009·62 cites·13 claims
- 1796US7233191B2JFET driver circuit and JFET driving methodRICHTEK TECHNOLOGY CORP·Filed 2005·Granted Jun 19, 2007·38 cites·9 claims
- 1895US11682966B2Pipeline resonant and non-resonant switched capacitor converter circuitRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Jun 20, 2023·3 cites·41 claims
- 1995US11303218B2Low delay time power converter circuit and driver circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Granted Apr 12, 2022·4 cites·32 claims
- 2095US10177670B1Flyback power converter circuit with active clamping and conversion control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2018·Granted Jan 8, 2019·17 cites·24 claims
- 2195US7230406B2Fixed-frequency current mode converter and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2005·Granted Jun 12, 2007·81 cites·20 claims
- 2294US11601048B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Mar 7, 2023·3 cites·19 claims
- 2394US11340643B2Linear regulator circuit and signal amplifier circuit having fast transient responseRICHTEK TECHNOLOGY CORP·Filed 2020·Granted May 24, 2022·4 cites·19 claims
- 2494US10097092B1Multi-phase switching regulator and control circuit and control method thereofRICHTEK TECHNOLOGY CORP·Filed 2018·Granted Oct 9, 2018·12 cites·33 claims
- 2594US8030911B2Hybrid control circuit and methodRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Oct 4, 2011·27 cites·21 claims
- 2694US7132717B2Power metal oxide semiconductor transistor layout with lower output resistance and high current limitRICHTEK TECHNOLOGY CORP·Filed 2005·Granted Nov 7, 2006·34 cites·14 claims
- 2793US10560012B1ZVS control circuit for use in a flyback power converterRICHTEK TECHNOLOGY CORP·Filed 2019·Granted Feb 11, 2020·10 cites·14 claims
- 2893US9755529B2Flyback power converter and controller and driver thereofRICHTEK TECHNOLOGY CORP·Filed 2016·Granted Sep 5, 2017·14 cites·31 claims
- 2993US8384305B2LED driver with direct AC-DC conversion and control, and method and integrated circuit thereforRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Feb 26, 2013·18 cites·16 claims
- 3093US8354820B2Analog photovoltaic power circuitRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Jan 15, 2013·10 cites·13 claims
- 3193US7233131B2Circuit and method for implementing a multi-function pin on a PWM controller chip in a voltage converterRICHTEK TECHNOLOGY CORP·Filed 2005·Granted Jun 19, 2007·45 cites·10 claims
- 3293US6703885B1Trimmer method and device for circuitsRICHTEK TECHNOLOGY CORP·Filed 2002·Granted Mar 9, 2004·59 cites·21 claims
- 3393US6670794B1Multi-phase DC-to-DC buck converter with multi-phase current balance and adjustable load regulationRICHTEK TECHNOLOGY CORP·Filed 2002·Granted Dec 30, 2003·101 cites·8 claims
- 3492US12273038B2Resonant flyback power converter and switching control circuit and method thereofRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Apr 8, 2025·2 cites·22 claims
- 3592US12273028B2Resonant AHB flyback power converter and switching control circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Apr 8, 2025·2 cites·24 claims
- 3692US12136877B2Switched capacitor voltage converter circuit and switched capacitor voltage conversion methodRICHTEK TECHNOLOGY CORP·Filed 2023·Granted Nov 5, 2024·2 cites·17 claims
- 3792US12136875B2Switched capacitor voltage converter circuit and switched capacitor voltage conversion methodRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Nov 5, 2024·2 cites·20 claims
- 3892US12062974B2Flyback power converter and switched capacitor converter circuit capable of step-up and step-down conversion thereofRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Aug 13, 2024·2 cites·23 claims
- 3992US11955884B2Resonant switching power converter circuitRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Apr 9, 2024·2 cites·43 claims
- 4092US11716020B2SCC-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
- 4192US11522536B2Switch capable of decreasing parasitic inductanceRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Dec 6, 2022·3 cites·10 claims
- 4292US11146217B2Signal amplifier circuit having high power supply rejection ratio and driving circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2020·Granted Oct 12, 2021·3 cites·18 claims
- 4392US7834606B2Control circuit and method for a constant on-time PWM switching converterRICHTEK TECHNOLOGY CORP·Filed 2007·Granted Nov 16, 2010·42 cites·32 claims
- 4492US7652945B2Adaptive zero current sense apparatus and method for a switching regulatorRICHTEK TECHNOLOGY CORP·Filed 2008·Granted Jan 26, 2010·31 cites·5 claims
- 4591US11811319B2Charging system, power supply system and dual mode power conversion circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Nov 7, 2023·2 cites·25 claims
- 4691US11812531B1LED driver and DAC reference circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2022·Granted Nov 7, 2023·3 cites·23 claims
- 4791US11742751B2Resonant switching power converterRICHTEK TECHNOLOGY CORP·Filed 2021·Granted Aug 29, 2023·2 cites·20 claims
- 4891US9853099B1Double diffused metal oxide semiconductor device and manufacturing method thereofRICHTEK TECHNOLOGY CORP·Filed 2017·Granted Dec 26, 2017·9 cites·10 claims
- 4991US8502515B1Multiphase DC-DC converting circuit and control circuit thereofRICHTEK TECHNOLOGY CORP·Filed 2013·Granted Aug 6, 2013·15 cites·16 claims
- 5091US8373396B2Adaptive two-stage voltage regulator and method for two-stage voltage regulationRICHTEK TECHNOLOGY CORP·Filed 2010·Granted Feb 12, 2013·13 cites·13 claims
Showing the top 50 of 801 patent records by PatentIndex Score.
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