Inventor · disambiguated record
Yushan Li
Also filed as: LI YUSHAN
29 granted patents·6 pending applications·890 citations·filing 2000–2024
97Inventor score
Files withNAT SEMICONDUCTOR CORP10HUAWEI DIGITAL POWER TECH CO LTD4LI YUSHAN3GREAT WALL MOTOR CO LTD2HUAWEI TECH CO LTD2
Top patents by PatentIndex Score
35 records- 0199US6914487B1Method and system for providing power management in a radio frequency power amplifier using adaptive envelope trackingNAT SEMICONDUCTOR CORP·Filed 2003·Granted Jul 5, 2005·183 cites·25 claims
- 0298US7679433B1Circuit and method for RF power amplifier power regulation and modulation envelope trackingNAT SEMICONDUCTOR CORP·Filed 2007·Granted Mar 16, 2010·151 cites·20 claims
- 0397US7915961B1Power amplifier multiple stage control for polar modulation circuitNAT SEMICONDUCTOR CORP·Filed 2008·Granted Mar 29, 2011·75 cites·20 claims
- 0496US8098093B1Efficient envelope tracking power supply for radio frequency or other power amplifiersLI YUSHAN·Filed 2010·Granted Jan 17, 2012·66 cites·26 claims
- 0595US6900697B1Method and system for providing power management in a radio frequency power amplifier by dynamically adjusting supply and bias conditionsNAT SEMICONDUCTOR CORP·Filed 2002·Granted May 31, 2005·87 cites·17 claims
- 0693US11411396B2ESD protection circuitHUAWEI TECH CO LTD·Filed 2021·Granted Aug 9, 2022·7 cites·11 claims
- 0793US7723969B1System and method for providing a low drop out circuit for a wide range of input voltagesNAT SEMICONDUCTOR CORP·Filed 2007·Granted May 25, 2010·28 cites·21 claims
- 0892US11791627B2ESD protection circuitHUAWEI TECH CO LTD·Filed 2022·Granted Oct 17, 2023·3 cites·11 claims
- 0992US10644607B2Auxiliary power supply apparatus and method for isolated power convertersFUTUREWEI TECHNOLOGIES INC·Filed 2017·Granted May 5, 2020·6 cites·20 claims
- 1092US8072196B1System and method for providing a dynamically configured low drop out regulator with zero quiescent current and fast transient responseLI YUSHAN·Filed 2008·Granted Dec 6, 2011·47 cites·21 claims
- 1192US7342387B1System and method for providing a highly efficient wide bandwidth power supply for a power amplifierNAT SEMICONDUCTOR CORP·Filed 2005·Granted Mar 11, 2008·26 cites·19 claims
- 1291US6486618B1Adaptable inverterKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Nov 26, 2002·68 cites·21 claims
- 1388US11784577B2Low noise power conversion system and methodHUAWEI DIGITAL POWER TECH CO LTD·Filed 2020·Granted Oct 10, 2023·2 cites·5 claims
- 1487US7821238B1Feedback loop compensation for buck/boost switching converterNAT SEMICONDUCTOR CORP·Filed 2008·Granted Oct 26, 2010·24 cites·20 claims
- 1586US9112409B2Switched mode assisted linear regulator with dynamic buck turn-off using ZCD-controlled tub switchingTEXAS INSTRUMENTS INC·Filed 2014·Granted Aug 18, 2015·9 cites·19 claims
- 1686US6359391B1System and method for overvoltage protection during pulse width modulation dimming of an LCD backlight inverterPHILIPS ELECTRONICS NA·Filed 2000·Granted Mar 19, 2002·39 cites·34 claims
- 1784US11664726B2Switched capacitor converter and control methodHUAWEI DIGITAL POWER TECH CO LTD·Filed 2021·Granted May 30, 2023·1 cites·20 claims
- 1881US11527960B2Auxiliary power supply apparatus and method for isolated power convertersHUAWEI DIGITAL POWER TECH CO LTD·Filed 2020·Granted Dec 13, 2022·1 cites·20 claims
- 1979US11848603B2Auxiliary power supply apparatus and method for isolated power convertersHUAWEI DIGITAL POWER TECH CO LTD·Filed 2022·Granted Dec 19, 2023·0 cites·20 claims
- 2079US7701690B1System and method for suppressing load transients in radio frequency power amplifier switching power suppliesNAT SEMICONDUCTOR CORP·Filed 2008·Granted Apr 20, 2010·16 cites·20 claims
- 2178US7868601B1System and method for controlling a regulator circuit for radio frequency power amplifier biasesNAT SEMICONDUCTOR CORP·Filed 2007·Granted Jan 11, 2011·11 cites·21 claims
- 2273US6376999B1Electronic ballast employing a startup transient voltage suppression circuitPHILIPS ELECTRONICS NA·Filed 2000·Granted Apr 23, 2002·17 cites·18 claims
- 2368US2025360487A1HoMOF MATERIAL ITS PREPARATION METHODS AND ITS APPLICATIONSPANJIN INSTITUTE OF INDUSTRIAL TECHNOLOGY DALIAN UNIV OF TECHNOLOGY·Filed 2024·Application pending·0 cites
- 2463US6617836B1CMOS sub-bandgap reference with an operating supply voltage less than the bandgapNAT SEMICONDUCTOR CORP·Filed 2002·Granted Sep 9, 2003·15 cites·20 claims
- 2558US6583703B2Electrical apparatus having an electromagnetic device operable at multiple inductance valuesKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jun 24, 2003·7 cites·16 claims
- 2656US11801837B2Vehicle control method, device, storage medium, and vehicleGREAT WALL MOTOR CO LTD·Filed 2021·Granted Oct 31, 2023·0 cites·20 claims
- 2756US8184727B2Robust integer carrier frequency offset estimatorLI YUSHAN·Filed 2008·Granted May 22, 2012·1 cites·24 claims
- 2851US12409732B2Environment temperature determination method, motor control unit, control system, and storage mediumGREAT WALL MOTOR CO LTD·Filed 2021·Granted Sep 9, 2025·0 cites·15 claims
- 2948US2011007854A1Integer carrier frequency offset estimation scheme for orthogonal frequency division multiplexingNXP BV·Filed 2009·Application pending·0 cites
- 3043US2022345025A1Switching frequency dithering method, switching circuit and dc-dc converterWIZ SEMICONDUCTOR INCORPORATED·Filed 2020·Application pending·0 cites
- 3142US2022329152A1Dc-dc converterWIZ SEMICONDUCTOR INCORPORATED·Filed 2020·Application pending·0 cites
- 3241US9546541B2Gas lift valvesSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jan 17, 2017·0 cites·14 claims
- 3339US11091510B2Crystal characteristics, preparation processes and anticancer applications of 17beta-neriifolin crystal formsENKANG PHARMACEUTICALS GUANGZHOU LTD·Filed 2019·Granted Aug 17, 2021·0 cites·8 claims
- 3437US2003227364A1Power transforming apparatus with multiple parallel-connected transformersKONIKLIJKE PHILIPS ELECTRONICS·Filed 2002·Application pending·0 cites
- 3536US2015233220A1Gas lift valveSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →