Inventor · disambiguated record
Lixiang Wei
Also filed as: WEI LIXIANG
100 granted patents·10 pending applications·845 citations·filing 2003–2025
99Inventor score
Files withROCKWELL AUTOMATION TECH INC54WEI LIXIANG20RIVIAN IP HOLDINGS LLC12LU HAIHUI3BRUBAKER JOHN R2
Top patents by PatentIndex Score
110 records- 0197US10541626B1Power conversion system with PWM carrier emulationROCKWELL AUTOMATION TECH INC·Filed 2019·Granted Jan 21, 2020·10 cites·20 claims
- 0297US7190143B2Pulse width modulation (PWM) rectifier with variable switching frequencyROCKWELL AUTOMATION TECH INC·Filed 2005·Granted Mar 13, 2007·99 cites·20 claims
- 0395US9236828B1Methods and power conversion system control apparatus to control IGBT junction temperature at low speedWEI LIXIANG·Filed 2014·Granted Jan 12, 2016·17 cites·20 claims
- 0495US8841917B2Ground scheme identification methodWEI LIXIANG·Filed 2011·Granted Sep 23, 2014·17 cites·13 claims
- 0595US8570003B2Double fed induction generator converter and method for suppressing transient in deactivation of crowbar circuit for grid fault ridethroughLU HAIHUI·Filed 2011·Granted Oct 29, 2013·18 cites·20 claims
- 0695US7356441B2Junction temperature prediction method and apparatus for use in a power conversion moduleROCKWELL AUTOMATION TECH INC·Filed 2005·Granted Apr 8, 2008·43 cites·9 claims
- 0794US10158299B1Common voltage reduction for active front end drivesROCKWELL AUTOMATION TECH INC·Filed 2018·Granted Dec 18, 2018·31 cites·19 claims
- 0894US9318976B1Adjustable PWM method to increase low speed starting torque and inverter voltage measurement accuracyROCKWELL AUTOMATION TECH INC·Filed 2014·Granted Apr 19, 2016·18 cites·20 claims
- 0993US9837924B1Precharge apparatus for power conversion systemROCKWELL AUTOMATION TECH INC·Filed 2016·Granted Dec 5, 2017·16 cites·15 claims
- 1093US9042146B2DC pre-charge circuitWEISS BRUCE W·Filed 2012·Granted May 26, 2015·13 cites·26 claims
- 1192US11641167B1Transformerless parallel AFE with ground current regulatorROCKWELL AUTOMATION TECH INC·Filed 2022·Granted May 2, 2023·3 cites·20 claims
- 1291US9425705B2Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverterROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Aug 23, 2016·6 cites·18 claims
- 1391US9389263B2Filter capacitor degradation identification using measured and expected voltageSARTLER CHRISTIAN·Filed 2014·Granted Jul 12, 2016·22 cites·21 claims
- 1491US8816631B2Apparatus and method for energy efficient motor drive standby operationWEI LIXIANG·Filed 2012·Granted Aug 26, 2014·13 cites·20 claims
- 1591US8643383B2Drive failure protectionXIAO YUAN·Filed 2011·Granted Feb 4, 2014·12 cites·23 claims
- 1690US12107507B2Dual active bridge converter control with switching loss distributionRIVIAN IP HOLDINGS LLC·Filed 2022·Granted Oct 1, 2024·3 cites·20 claims
- 1790US10784797B1Bootstrap charging by PWM controlROCKWELL AUTOMATION TECH INC·Filed 2019·Granted Sep 22, 2020·11 cites·20 claims
- 1890US10476381B1Power conversion system and filter thereforROCKWELL AUTOMATION TECH INC·Filed 2018·Granted Nov 12, 2019·7 cites·20 claims
- 1990US6995992B2Dual bridge matrix converterWISCONSIN ALUMNI RES FOUND·Filed 2003·Granted Feb 7, 2006·70 cites·11 claims
- 2089US9091742B2Fault identification techniques for high resistance grounded systemsWEI LIXIANG·Filed 2012·Granted Jul 28, 2015·8 cites·24 claims
- 2189US8432052B2Wind power converter system with grid side reactive power controlLU HAIHUI·Filed 2010·Granted Apr 30, 2013·19 cites·10 claims
- 2288US9054599B2Power converter and integrated DC choke thereforWEI LIXIANG·Filed 2012·Granted Jun 9, 2015·9 cites·20 claims
- 2388US9041234B2Double fed induction generator (DFIG) converter and method for improved grid fault ridethroughLU HAIHUI·Filed 2012·Granted May 26, 2015·15 cites·12 claims
- 2487US8988026B2Single phase operation of a three-phase drive systemAHMED AHMED MOHAMED SAYED·Filed 2012·Granted Mar 24, 2015·14 cites·24 claims
- 2587US8698504B2System for detection of a ground fault in a high resistance ground networkWEI LIXIANG·Filed 2010·Granted Apr 15, 2014·7 cites·10 claims
- 2686US9461559B2Active front end power converter with boost mode derating to protect filter inductorPATEL YOGESH·Filed 2013·Granted Oct 4, 2016·10 cites·21 claims
- 2786US9092030B2Method to implement drive diagnostics and prognostics automaticallyROCKWELL AUTOMATION TECH INC·Filed 2013·Granted Jul 28, 2015·13 cites·23 claims
- 2886US8953296B2AC pre-charge circuitWEISS BRUCE W·Filed 2012·Granted Feb 10, 2015·7 cites·22 claims
- 2986US7826985B2Power module life estimation fatigue functionROCKWELL AUTOMATION TECH INC·Filed 2008·Granted Nov 2, 2010·14 cites·18 claims
- 3085US10008952B1Power conversion system with conditioner capacitor discharge apparatusROCKWELL AUTOMATION TECH INC·Filed 2016·Granted Jun 26, 2018·5 cites·20 claims
- 3185US9654021B2Multifunction power converter with option for integrated magneticsWEI LIXIANG·Filed 2013·Granted May 16, 2017·7 cites·20 claims
- 3285US9590547B2Double fed induction generator (DFIG) converter and method for improved grid fault ridethroughROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Mar 7, 2017·6 cites·18 claims
- 3385US8593150B2Method and apparatus for detecting a location of ground faults in a motor/motor drive combinationVRANKOVIC ZORAN V·Filed 2010·Granted Nov 26, 2013·9 cites·20 claims
- 3485US8379417B2Power converter and integrated DC choke thereforROCKWELL AUTOMATION TECH INC·Filed 2011·Granted Feb 19, 2013·5 cites·20 claims
- 3585US8188693B2DC bus boost method and system for regenerative brakeWEI LIXIANG·Filed 2009·Granted May 29, 2012·17 cites·20 claims
- 3684US9787213B2Power cell bypass method and apparatus for multilevel inverterROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Oct 10, 2017·4 cites·20 claims
- 3784US9653984B2Filter capacitor degradation detection apparatus and methodPATEL YOGESH POPATLAL·Filed 2012·Granted May 16, 2017·6 cites·15 claims
- 3884US7825621B2Junction temperature reduction for three phase inverters modulesROCKWELL AUTOMATION TECH INC·Filed 2007·Granted Nov 2, 2010·14 cites·25 claims
- 3984US7535738B2Method and apparatus including multi-drive configurations for medium voltage loadsROCKWELL AUTOMATION TECH INC·Filed 2006·Granted May 19, 2009·21 cites·31 claims
- 4083US11336206B2Switching frequency and PWM control to extend power converter lifetimeROCKWELL AUTOMATION TECH INC·Filed 2020·Granted May 17, 2022·3 cites·20 claims
- 4183US9240731B2Power cell bypass method and apparatus for multilevel inverterWEI LIXIANG·Filed 2013·Granted Jan 19, 2016·6 cites·15 claims
- 4283US9054586B2Methods and apparatus for continuous and discontinuous active rectifier boost operation to increase power converter ratingWEI LIXIANG·Filed 2013·Granted Jun 9, 2015·7 cites·20 claims
- 4383US7830036B2Power electronic module pre-charge system and methodROCKWELL AUTOMATION TECH INC·Filed 2008·Granted Nov 9, 2010·20 cites·27 claims
- 4483US7518891B2Auxiliary circuit for use with three-phase drive with current source inverter powering a single-phase loadROCKWELL AUTOMATION TECH INC·Filed 2006·Granted Apr 14, 2009·18 cites·22 claims
- 4582US9553533B2DC pre charge circuitROCKWELL AUTOMATION TECH INC·Filed 2015·Granted Jan 24, 2017·2 cites·20 claims
- 4681US9612269B2System for detection of a ground fault in a high resistance ground networkROCKWELL AUTOMATION TECH INC·Filed 2014·Granted Apr 4, 2017·4 cites·21 claims
- 4781US8148929B2Power electronic module IGBT protection method and systemWEI LIXIANG·Filed 2008·Granted Apr 3, 2012·11 cites·23 claims
- 4880US9667128B2Power converter resonance detection apparatus and methodPATEL YOGESH POPATLAL·Filed 2012·Granted May 30, 2017·6 cites·20 claims
- 4980US2025326305A1Direct current fast charger system with low standby powerRIVIAN IP HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 5079US11402436B2System and method for ground fault detectionROCKWELL AUTOMATION TECH INC·Filed 2020·Granted Aug 2, 2022·1 cites·19 claims
Showing the top 50 of 110 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →