Inventor · disambiguated record
Jih-Sheng Lai
Also filed as: LAI JIH-SHENG
28 granted patents·9 pending applications·1,777 citations·filing 1989–2022
97Inventor score
Files withELECTRIC POWER RES INST7LAI JIH-SHENG6VIRGINIA TECH INTELL PROP4LOCKHEED MARTIN ENERGY SYS INC3IND TECH RES INST2
Top patents by PatentIndex Score
37 records- 0199US7336004B2Topologies for using multiple energy sources for power conversionsVIRGINIA TECH INTELL PROP·Filed 2006·Granted Feb 26, 2008·211 cites·8 claims
- 0297US5642275AMultilevel cascade voltage source inverter with seperate DC sourcesLOCKHEED MARTIN ENERGY SYSTEM·Filed 1995·Granted Jun 24, 1997·414 cites·16 claims
- 0395US7518886B1Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current eliminationVIRGINIA TECH INTELL PROP·Filed 2005·Granted Apr 14, 2009·140 cites·22 claims
- 0495US6452815B1Accelerated commutation for passive clamp isolated boost convertersFiled 2001·Granted Sep 17, 2002·105 cites·22 claims
- 0595US5406051AWelding machine with a high frequency converterELECTRIC POWER RES INST·Filed 1993·Granted Apr 11, 1995·94 cites·4 claims
- 0693US5644483AVoltage balanced multilevel voltage source converter systemLOCKHEED MARTIN ENERGY SYS INC·Filed 1995·Granted Jul 1, 1997·137 cites·10 claims
- 0792US7138730B2Topologies for multiple energy sourcesVIRGINIA TECH INTELL PROP·Filed 2002·Granted Nov 21, 2006·74 cites·32 claims
- 0891US7050311B2Multilevel converter based intelligent universal transformerELECTRIC POWER RES INST·Filed 2003·Granted May 23, 2006·90 cites·16 claims
- 0991US6876556B2Accelerated commutation for passive clamp isolated boost convertersVIRGINIA TECH INTELL PROP·Filed 2002·Granted Apr 5, 2005·62 cites·64 claims
- 1088US6954366B2Multifunction hybrid intelligent universal transformerELECTRIC POWER RES INST·Filed 2003·Granted Oct 11, 2005·90 cites·9 claims
- 1188US5426350AHigh frequency transformerless electronics ballast using double inductor-capacitor resonant power conversion for gas discharge lampsELECTRIC POWER RES INST·Filed 1993·Granted Jun 20, 1995·75 cites·14 claims
- 1287US12034376B2Hybrid modulation controlled DC-to-AC convertersVIRGINIA TECH INTELLECTUAL PROPERTIES INC·Filed 2020·Granted Jul 9, 2024·3 cites·20 claims
- 1386US8830711B2Hybrid switch for resonant power convertersLAI JIH-SHENG·Filed 2011·Granted Sep 9, 2014·11 cites·17 claims
- 1484USRE37126EMultilevel cascade voltage source inverter with seperate DC sourcesLOCKHEED MARTIN ENERGY SYS INC·Filed 1998·Granted Apr 3, 2001·65 cites·36 claims
- 1581US6727482B2Apparatus and method for inductive heatingFiled 2001·Granted Apr 27, 2004·27 cites·16 claims
- 1680US5111374AHigh frequency quasi-resonant DC voltage notching scheme of a PWM voltage fed inverter for AC motor drivesUNIV TENNESSEE RES CORP·Filed 1990·Granted May 5, 1992·58 cites·4 claims
- 1778US7969225B2Circuit of reducing power loss of switching deviceATOMIC ENERGY COUNCIL·Filed 2010·Granted Jun 28, 2011·7 cites·12 claims
- 1878US7405910B2Multifunction hybrid solid-state switchgearELECTRIC POWER RES INST·Filed 2006·Granted Jul 29, 2008·13 cites·17 claims
- 1975US10944283B2Distributed single-stage on-board charging device and method thereofIND TECH RES INST·Filed 2017·Granted Mar 9, 2021·3 cites·21 claims
- 2074US8334616B2Photovoltaic integrated variable frequency driveMANSOOR ARSHAD·Filed 2008·Granted Dec 18, 2012·5 cites·10 claims
- 2174US5642273AResonant snubber inverterMARTIN MARIETTA ENERGY SYSTEMS·Filed 1994·Granted Jun 24, 1997·28 cites·12 claims
- 2271US8824174B2Control system and method for a universal power conditioning systemLAI JIH-SHENG·Filed 2008·Granted Sep 2, 2014·6 cites·15 claims
- 2368US5710698ADelta connected resonant snubber circuitLOCKHEED MARTIN ENERGY SYS INC·Filed 1995·Granted Jan 20, 1998·41 cites·19 claims
- 2456US4998054AProgrammable current initilization for resonant DC link converterUNIV TENNESSE RESEARCH CORP·Filed 1989·Granted Mar 5, 1991·17 cites·4 claims
- 2549US9356526B2DC-DC power conversion apparatus and methodIND TECH RES INST·Filed 2014·Granted May 31, 2016·1 cites·12 claims
- 2645US11968765B2Induction cooking systemTHE VOLLRATH CO LLC·Filed 2019·Granted Apr 23, 2024·0 cites·11 claims
- 2743US11990849B2Hybrid multi-level inverterVIRGINIA TECH INTELLECTUAL PROPERTIES INC·Filed 2022·Granted May 21, 2024·0 cites·22 claims
- 2843US2015183330A1Modular reconfigurable medium voltage transformer for data centers, volt/var control, ac and dc charging, and vehicle-to-grid applicationsELECTRIC POWER RES INST·Filed 2013·Application pending·0 cites
- 2939US2006028848A1Multifunction hybrid intelligent universal transformerLAI JIH-SHENG·Filed 2005·Application pending·0 cites
- 3039US2013134935A1Medium voltage stand alone dc fast chargerMAITRA ARINDAM·Filed 2012·Application pending·0 cites
- 3138US2007223258A1Multilevel converters for intelligent high-voltage transformersLAI JIH-SHENG·Filed 2007·Application pending·0 cites
- 3237US2020373849A1Power converterROLLS ROYCE PLC·Filed 2020·Application pending·0 cites
- 3336US2009116266A1Paralleled power conditioning system with circulating current filterTATUNG CO·Filed 2008·Application pending·0 cites
- 3435US7254043B2Power converter for fuel batteryTATUNG CO LTD·Filed 2005·Granted Aug 7, 2007·0 cites·6 claims
- 3535US2006221653A1Multilevel converter based intelligent universal transformerLAI JIH-SHENG·Filed 2006·Application pending·0 cites
- 3635US2011273917A1Intelligent photovoltaic interface and systemELECTRIC POWER RES INST·Filed 2011·Application pending·0 cites
- 3732US2007230226A1Multilevel intelligent universal auto-transformerLAI JIH-SHENG·Filed 2007·Application pending·0 cites
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