Ramu; Krishnan

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ramu; Krishnan.The latest application filed is for "system and methods of electric machine rotor position detection".

Company Profile

1.42.35

Ramu; Krishnan - Blacksburg VA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
System and methods of electric machine rotor position detection Grant 10,404,108 - Lobo , et al. Sep	2019-09-03
High power density SRM Grant 9,312,733 - Ramu April 12, 2	2016-04-12
System And Methods Of Electric Machine Rotor Position Detection App 20150372543 - Lobo; Nimal Savio ; et al.	2015-12-24
High power density switched reluctance machines with hybrid excitation Grant 9,093,943 - Ramu July 28, 2	2015-07-28
High power density SRMs Grant 9,054,567 - Ramu June 9, 2	2015-06-09
Rotor Lamination Shaping For Minimum Core Loss In Srms App 20150124267 - Ramu; Krishnan	2015-05-07
PM brushless motor drive circuit topology and control Grant 8,981,705 - Ramu March 17, 2	2015-03-17
Rotor lamination shaping for minimum core loss in SRMs Grant 8,952,591 - Ramu February 10, 2	2015-02-10
Switched reluctance machines with minimum stator core Grant 8,901,798 - Ramu , et al. December 2, 2	2014-12-02
Power factor correction drive circuit topologies and control for switched reluctance machines Grant 8,878,467 - Ramu November 4, 2	2014-11-04
Power factor correction circuits for switched reluctance machines Grant 8,754,605 - Ramu June 17, 2	2014-06-17
Switched reluctance and PM brushless DC motor drive control for electric vehicle application Grant 8,716,961 - Ramu May 6, 2	2014-05-06
Power Converter For An Electrical Machine And Method Of Operating The Machine App 20140084816 - RAMU; Krishnan	2014-03-27
Single switch controlled switched reluctance machine Grant 8,674,648 - Ramu March 18, 2	2014-03-18
Power Factor Correction Drive Circuit Topologies And Control For Switched Reluctance Machines App 20140035490 - RAMU; Krishnan	2014-02-06
System and method for controlling four-quadrant operation of a switched reluctance motor drive through a single controllable switch Grant 8,624,541 - Ramu , et al. January 7, 2	2014-01-07
Method for controlling motor operation using information characterizing regions of motor operation Grant 8,618,761 - Hudson , et al. December 31, 2	2013-12-31
High density windings for a concentric wound electrical machine stator Grant 8,541,920 - Ramu September 24, 2	2013-09-24
Power factor correction drive circuit topologies and control for switched reluctance machines Grant 8,525,450 - Ramu September 3, 2	2013-09-03
System And Method For Controlling Four-quadrant Operation Of A Switched Reluctance Motor Drive Through A Single Controllable Switch App 20130009589 - RAMU; Krishnan ; et al.	2013-01-10
Method, controller, and power converter for controlling a single-switch based switched reluctance machine Grant 8,319,456 - Ramu November 27, 2	2012-11-27
Motor power factor correction apparatus and method Grant 8,264,182 - Ramu September 11, 2	2012-09-11
System and method for controlling four-quadrant operation of a switched reluctance motor drive through a single controllable switch Grant 8,203,302 - Ramu , et al. June 19, 2	2012-06-19
High Power Density Srm App 20120104895 - RAMU; Krishnan	2012-05-03
Noise Reduction Structures For Electrical Machines App 20120104879 - RAMU; Krishnan	2012-05-03
ROTOR LAMINATION SHAPING FOR MINIMUM CORE LOSS IN SRMs App 20120104982 - RAMU; Krishnan	2012-05-03
Switched Reluctance And Pm Brushless Dc Motor Drive Control For Electric Vehicle Application App 20120104980 - RAMU; Krishnan	2012-05-03
Power Factor Correction Circuits For Switched Reluctance Machines App 20120104984 - RAMU; Krishnan	2012-05-03
HIGH POWER DENSITY SRMs App 20120104988 - RAMU; Krishnan	2012-05-03
System And Method For Collecting Characteristic Information Of A Motor, Neural Network And Method For Estimating Regions Of Motor Operation From Information Characterizing The Motor, And System And Method For Controlling Motor Operation Using The Characteristic Information, The Neural Network, Or Bo App 20120056570 - Hudson; Christopher Allen ; et al.	2012-03-08
Neural network and method for estimating regions of motor operation from information characterizing the motor Grant 8,080,964 - Hudson , et al. December 20, 2	2011-12-20
High Power Density Switched Reluctance Machines With Hybrid Excitation App 20110260672 - RAMU; Krishnan	2011-10-27
High Density Windings For A Concentric Wound Electrical Machine Stator App 20110234027 - RAMU; Krishnan	2011-09-29
Power Factor Correction Drive Circuit Topologies And Control For Switched Reluctance Machines App 20110234136 - RAMU; Krishnan	2011-09-29
Pm Brushless Motor Drive Circuit Topology And Control App 20110234134 - RAMU; Krishnan	2011-09-29
Method, Controller, and Power Converter for Controlling a Single-Switch Based Switched Reluctance Machine App 20110193507 - Ramu; Krishnan	2011-08-11
Motor Power Factor Correction Apparatus and Method App 20110187300 - Ramu; Krishnan	2011-08-04
Single Switch Controlled Switched Reluctance Machine App 20110025253 - Ramu; Krishnan	2011-02-03
Single switch controlled switched reluctance machine Grant 7,852,038 - Ramu December 14, 2	2010-12-14
Switched Reluctance Machines with Minimum Stator Core App 20100141061 - Ramu; Krishnan ; et al.	2010-06-10
Apparatus and method that prevent flux reversal in the stator back material of a two-phase SRM (TPSRM) Grant 7,579,734 - Ramu , et al. August 25, 2	2009-08-25
System And Method For Controlling Four-quadrant Operation Of A Switched Reluctance Motor Drive Through A Single Controllable Switch App 20090200980 - Ramu; Krishnan ; et al.	2009-08-13
Single Switch Controlled Switched Reluctance Machine App 20090045768 - Ramu; Krishnan	2009-02-19
System and Method for Collecting Characteristic Information of a Motor, Neural Network and Method for Estimating Regions of Motor Operation from Information Characterizing the Motor, and System and Method for Controlling Motor App 20080315811 - Hudson; Christopher Allen ; et al.	2008-12-25
PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motors Grant 7,420,308 - Ramu , et al. September 2, 2	2008-09-02
Method and apparatus for identifying an operational phase of a motor phase winding and controlling energization of the phase winding Grant 7,412,339 - Ramu , et al. August 12, 2	2008-08-12
Apparatus for drive control, power conversion, and start-up control in a PMBDCM or two-phase SRM drive system Grant 7,372,232 - Ramu May 13, 2	2008-05-13
Method, Apparatus, And System For Drive Control, Power Conversion, And Start-up Control In An Srm Or Pmbdcm Drive System App 20070273322 - RAMU; Krishnan	2007-11-29
Method, apparatus, and system for drive control, power conversion, and start-up control in an SRM or PMBDCM drive system Grant 7,271,564 - Ramu September 18, 2	2007-09-18
Apparatus and method that prevent flux reversal in the stator back material of a two-phase srm (tpsrm) App 20060273680 - Ramu; Krishnan ; et al.	2006-12-07
System to generate and control levitation, propulsion and guidance of linear switched reluctance machines Grant 7,134,396 - Ramu November 14, 2	2006-11-14
Radial-axial electromagnetic flux electric motor, coaxial electromagnetic flux electric motor, and rotor for same Grant 7,034,422 - Ramu April 25, 2	2006-04-25
Apparatus and method that prevent flux reversal in the stator back material of a two-phase SRM (TPSRM) Grant 7,015,615 - Ramu , et al. March 21, 2	2006-03-21
PMBDCM and two phase SRM motor, two phase SRM rotor and stator, and coil wrap for PMBDCM and SRM motors App 20050156475 - Ramu, Krishnan ; et al.	2005-07-21
Radial-axial electromagnetic flux electric motor, coaxial electromagnetic flux electric motor, and rotor for same App 20050151437 - Ramu, Krishnan	2005-07-14
Method and apparatus for identifying an operational phase of a motor phase winding and controlling energization of the phase winding App 20050154545 - Ramu, Krishnan ; et al.	2005-07-14
Method, apparatus, and system for drive control, power conversion, and start-up control in an SRM or PMBDCM drive system App 20050146304 - Ramu, Krishnan	2005-07-07
System to generate and control levitation, propulsion and guidance of linear switched reluctance machines App 20050115454 - Ramu, Krishnan	2005-06-02
Apparatus for drive control, power conversion, and start-up control in a PMBDCM or two-phase SRM drive system App 20050116679 - Ramu, Krishnan	2005-06-02
Apparatus and method that prevent flux reversal in the stator back material of a two-phase SRM (TPSRM) App 20040263013 - Ramu, Krishnan ; et al.	2004-12-30
Transportation system with linear switched reluctance actuator for propulsion and levitation App 20040089190 - Ramu, Krishnan ; et al.	2004-05-13

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