Inventor · disambiguated record
Krishnan Ramu
Also filed as: RAMU KRISHNAN
28 granted patents·4 pending applications·297 citations·filing 2002–2015
97Inventor score
Files withRAMU KRISHNAN17VIRGINIA TECH INTELL PROP8HUDSON CHRISTOPHER ALLEN2REGAL BELOIT AMERICA INC2PANAPHASE TECHNOLOGIES LLC1
Top patents by PatentIndex Score
32 records- 0194US8716961B2Switched reluctance and PM brushless DC motor drive control for electric vehicle applicationRAMU KRISHNAN·Filed 2011·Granted May 6, 2014·10 cites·30 claims
- 0294US7034422B2Radial-axial electromagnetic flux electric motor, coaxial electromagnetic flux electric motor, and rotor for sameVIRGINIA TECH INTELL PROP·Filed 2004·Granted Apr 25, 2006·56 cites·66 claims
- 0392US7271564B2Method, apparatus, and system for drive control, power conversion, and start-up control in an SRM or PMBDCM drive systemVIRGINIA TECH INTELL PROP·Filed 2004·Granted Sep 18, 2007·39 cites·34 claims
- 0490US8754605B2Power factor correction circuits for switched reluctance machinesRAMU KRISHNAN·Filed 2011·Granted Jun 17, 2014·6 cites·41 claims
- 0590US8618761B2Method for controlling motor operation using information characterizing regions of motor operationHUDSON CHRISTOPHER ALLEN·Filed 2011·Granted Dec 31, 2013·11 cites·18 claims
- 0688US8981705B2PM brushless motor drive circuit topology and controlRAMU KRISHNAN·Filed 2011·Granted Mar 17, 2015·7 cites·11 claims
- 0783US8264182B2Motor power factor correction apparatus and methodRAMU KRISHNAN·Filed 2008·Granted Sep 11, 2012·14 cites·35 claims
- 0881US9054567B2High power density SRMsRAMU KRISHNAN·Filed 2011·Granted Jun 9, 2015·4 cites·22 claims
- 0981US8525450B2Power factor correction drive circuit topologies and control for switched reluctance machinesRAMU KRISHNAN·Filed 2011·Granted Sep 3, 2013·4 cites·21 claims
- 1080US7852038B2Single switch controlled switched reluctance machineRAMU INC·Filed 2007·Granted Dec 14, 2010·13 cites·20 claims
- 1178US8541920B2High density windings for a concentric wound electrical machine statorRAMU KRISHNAN·Filed 2011·Granted Sep 24, 2013·3 cites·2 claims
- 1277US7015615B2Apparatus and method that prevent flux reversal in the stator back material of a two-phase SRM (TPSRM)VIRGINIA TECH INTELL PROP·Filed 2004·Granted Mar 21, 2006·18 cites·20 claims
- 1375US9093943B2High power density switched reluctance machines with hybrid excitationRAMU KRISHNAN·Filed 2011·Granted Jul 28, 2015·3 cites·17 claims
- 1475US8080964B2Neural network and method for estimating regions of motor operation from information characterizing the motorHUDSON CHRISTOPHER ALLEN·Filed 2005·Granted Dec 20, 2011·10 cites·20 claims
- 1573US8901798B2Switched reluctance machines with minimum stator coreRAMU KRISHNAN·Filed 2008·Granted Dec 2, 2014·10 cites·39 claims
- 1673US8319456B2Method, controller, and power converter for controlling a single-switch based switched reluctance machineRAMU KRISHNAN·Filed 2008·Granted Nov 27, 2012·8 cites·32 claims
- 1772US8878467B2Power factor correction drive circuit topologies and control for switched reluctance machinesRAMU KRISHNAN·Filed 2013·Granted Nov 4, 2014·2 cites·24 claims
- 1871US8952591B2Rotor lamination shaping for minimum core loss in SRMsRAMU KRISHNAN·Filed 2011·Granted Feb 10, 2015·2 cites·15 claims
- 1970US9312733B2High power density SRMRAMU KRISHNAN·Filed 2011·Granted Apr 12, 2016·1 cites·10 claims
- 2069US7412339B2Method and apparatus for identifying an operational phase of a motor phase winding and controlling energization of the phase windingVIRGINIA TECH INTELL PROP·Filed 2004·Granted Aug 12, 2008·21 cites·14 claims
- 2168US7420308B2PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motorsVIRGINIA TECH INTELL PROP·Filed 2004·Granted Sep 2, 2008·18 cites·15 claims
- 2263US8203302B2System and method for controlling four-quadrant operation of a switched reluctance motor drive through a single controllable switchRAMU KRISHNAN·Filed 2005·Granted Jun 19, 2012·6 cites·12 claims
- 2360US7372232B2Apparatus for drive control, power conversion, and start-up control in a PMBDCM or two-phase SRM drive systemVIRGINIA TECH INTELL PROP·Filed 2004·Granted May 13, 2008·14 cites·64 claims
- 2457US7134396B2System to generate and control levitation, propulsion and guidance of linear switched reluctance machinesVIRGINIA TECH INTELL PROP·Filed 2003·Granted Nov 14, 2006·15 cites·14 claims
- 2556US2015124267A1Rotor lamination shaping for minimum core loss in srmsREGAL BELOIT AMERICA INC·Filed 2015·Application pending·0 cites
- 2650US2007273322A1Method, apparatus, and system for drive control, power conversion, and start-up control in an srm or pmbdcm drive systemVIRGINIA TECH INTELL PROP·Filed 2007·Application pending·0 cites
- 2746US8624541B2System and method for controlling four-quadrant operation of a switched reluctance motor drive through a single controllable switchRAMU KRISHNAN·Filed 2012·Granted Jan 7, 2014·0 cites·8 claims
- 2842US8674648B2Single switch controlled switched reluctance machineRAMU KRISHNAN·Filed 2008·Granted Mar 18, 2014·0 cites·21 claims
- 2941US2014084816A1Power converter for an electrical machine and method of operating the machineRAMU KRISHNAN·Filed 2013·Application pending·0 cites
- 3039US10404108B2System and methods of electric machine rotor position detectionREGAL BELOIT AMERICA INC·Filed 2014·Granted Sep 3, 2019·0 cites·10 claims
- 3133US7579734B2Apparatus and method that prevent flux reversal in the stator back material of a two-phase SRM (TPSRM)PANAPHASE TECHNOLOGIES LLC·Filed 2004·Granted Aug 25, 2009·2 cites·20 claims
- 3233US2004089190A1Transportation system with linear switched reluctance actuator for propulsion and levitationFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →