Nondahl; Thomas A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Nondahl; Thomas A..The latest application filed is for "current control of motor drives with output sinewave filter".

Company Profile

0.28.20

Nondahl; Thomas A. - Greenfield WI
Nondahl; Thomas A. - Wauwatosa WI
Nondahl; Thomas A - Wauwatosa WI
Nondahl; Thomas A. - West Allis WI
Nondahl; Thomas A. - Milwaukee WI

*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
Feedforward control of motor drives with output sinewave filter Grant 10,158,314 - Royak , et al. Dec	2018-12-18
Current control of motor drives with output sinewave filter Grant 10,020,766 - Royak , et al. July 10, 2	2018-07-10
Sensorless motor drive vector control with feedback compensation for filter capacitor current Grant 9,985,565 - Royak , et al. May 29, 2	2018-05-29
Current Control Of Motor Drives With Output Sinewave Filter App 20180138849 - Royak; Semyon ; et al.	2018-05-17
Parameter estimation system and method for an induction motor Grant 9,880,223 - Messersmith , et al. January 30, 2	2018-01-30
Sensorless Motor Drive Vector Control With Feedback Compensation For Filter Capacitor Current App 20170302209 - Royak; Semyon ; et al.	2017-10-19
Feedforward Control Of Motor Drives With Output Sinewave Filter App 20170141712 - Royak; Semyon ; et al.	2017-05-18
Sensorless motor drive vector control Grant 9,490,738 - Nondahl , et al. November 8, 2	2016-11-08
Sensorless Motor Drive Vector Control With Feedback Compensation For Filter Capacitor Current App 20160173012 - Nondahl; Thomas A. ; et al.	2016-06-16
Sensorless Motor Drive Vector Control App 20160173018 - Nondahl; Thomas A. ; et al.	2016-06-16
Parameter Estimation System And Method For An Induction Motor App 20140285230 - Messersmith; David M. ; et al.	2014-09-25
Parameter estimation system and method for an induction motor Grant 8,742,767 - Messersmith , et al. June 3, 2	2014-06-03
Control method and system with feedback indicative of load flux Grant 8,547,050 - Lu , et al. October 1, 2	2013-10-01
Method and apparatus for estimating rotor position in a sensorless synchronous motor Grant 8,497,655 - Liu , et al. July 30, 2	2013-07-30
Method and apparatus for increased current stability in a PWM drive Grant 8,330,405 - Royak , et al. December 11, 2	2012-12-11
Method and Apparatus for Estimating Rotor Position in a Sensorless Synchronous Motor App 20120268050 - Liu; Jingbo ; et al.	2012-10-25
Control Method and System with Feedback Indicative of Load Flux App 20120223668 - Lu; Haihui ; et al.	2012-09-06
Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM Grant 8,228,013 - Liu , et al. July 24, 2	2012-07-24
Control method and system with feedback indicative of load flux Grant 8,203,304 - Lu , et al. June 19, 2	2012-06-19
Parameter Estimation System And Method For An Induction Motor App 20110102012 - Messersmith; David M. ; et al.	2011-05-05
Universal adaptive torque control for PM motors for field-weakening region operation Grant 7,915,852 - Royak , et al. March 29, 2	2011-03-29
Induction motor analysis and control method Grant 7,868,581 - Qian , et al. January 11, 2	2011-01-11
Method and Apparatus for Increased Current Stability in a PWM Drive App 20100320948 - Royak; Semyon ; et al.	2010-12-23
Induction motor controller Grant 7,701,165 - Quian , et al. April 20, 2	2010-04-20
Method And Apparatus For Automatically Identifying Electrical Parameters In A Sensor-less Pmsm App 20100060210 - Liu; Jingbo ; et al.	2010-03-11
Switching apparatus and method Grant 7,672,096 - Messersmith , et al. March 2, 2	2010-03-02
System and method for universal adaptive torque control of permanent magnet motors Grant 7,609,014 - Royak , et al. October 27, 2	2009-10-27
Universal Adaptive Torque Control For Pm Motors For Field-weakening Region Operation App 20090212732 - Royak; Semyon ; et al.	2009-08-27
System and method for transient-based motor speed estimation with transient excitation Grant 7,538,507 - Lu , et al. May 26, 2	2009-05-26
Control method and system with feedback indicative of load flux App 20090058341 - Lu; Haihui ; et al.	2009-03-05
Induction Motor Analysis And Control Method App 20080203954 - Qian; Wei ; et al.	2008-08-28
System And Method For Universal Adaptive Torque Control Of Permanent Magnet Motors App 20080094015 - Royak; Semyon ; et al.	2008-04-24
Switching apparatus and method App 20080094771 - Messersmith; David M. ; et al.	2008-04-24
Induction motor controller Grant 7,358,700 - Qian , et al. April 15, 2	2008-04-15
Induction Motor Controller App 20080067971 - Qian; Wei ; et al.	2008-03-20
Induction Motor Controller App 20080067970 - Qian; Wei ; et al.	2008-03-20
System And Method For Transient-based Motor Speed Estimation With Transient Excitation App 20070247099 - Lu; Haihui ; et al.	2007-10-25
System and method for transient-based motor speed estimation with transient excitation Grant 7,227,326 - Lu , et al. June 5, 2	2007-06-05
Electric motor having rotor-embedded sensor App 20010008352 - Nondahl, Thomas A. ; et al.	2001-07-19
Electric motor having rotor-embedded sensor Grant 6,218,749 - Nondahl , et al. April 17, 2	2001-04-17
Method and apparatus for rotor angle detection Grant 6,172,498 - Schmidt , et al. January 9, 2	2001-01-09
Dual phase resolver to digital converter Grant 5,347,277 - Nondahl , et al. September 13, 1	1994-09-13
Digital power converter Grant 4,490,780 - Nondahl December 25, 1	1984-12-25
Rotor for a line-start permanent-magnet motor Grant 4,405,873 - Nondahl September 20, 1	1983-09-20
Flux shield for an inductor-alternator machine Grant 4,385,251 - Mallick , et al. May 24, 1	1983-05-24