Leggate; David

Patent Applications and Registrations

Patent applications and USPTO patent grants for Leggate; David.The latest application filed is for "calculating a load resistance".

Company Profile

3.24.12

Leggate; David - New Berlin WI
Leggate; David - Milwaukee County 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
Calculating a load resistance Grant 10,527,661 - Leggate , et al. J	2020-01-07
Calculating A Load Resistance App 20190242934 - Leggate; David ; et al.	2019-08-08
Adaptive harmonic elimination compensation for voltage distortion elements Grant 10,250,161 - Leggate , et al.	2019-04-02
Inverter phase current reconstruction apparatus and methods Grant 9,584,043 - Zhang , et al. February 28, 2	2017-02-28
Inverter Phase Current Reconstruction Apparatus And Methods App 20160254760 - Zhang; Zhendong ; et al.	2016-09-01
Method and apparatus for ripple and phase loss detection Grant 9,036,382 - Li , et al. May 19, 2	2015-05-19
Method And Apparatus For Ripple And Phase Loss Detection App 20140254217 - Li; Bing ; et al.	2014-09-11
Discontinuous pulse width drive modulation method and apparatus for reduction of common-mode voltage in power conversion systems Grant 8,503,207 - Tallam , et al. August 6, 2	2013-08-06
Pulse width modulation control method and system for mitigating reflected wave effects in over-modulation region Grant 8,488,345 - Tallam , et al. July 16, 2	2013-07-16
Pulse Width Modulation Control Method And System For Mitigating Reflected Wave Effects In Over-modulation Region App 20120140532 - Tallam; Rangarajan M. ; et al.	2012-06-07
Discontinuous Pulse Width Drive Modulation Method And Apparatus App 20120075892 - Tallam; Rangarajan M. ; et al.	2012-03-29
Systems and methods for common-mode voltage reduction in fully regenerative AC drives Grant 8,107,267 - Tallam , et al. January 31, 2	2012-01-31
Systems and methods for reducing AC drive common-mode currents Grant 7,881,081 - Tallam , et al. February 1, 2	2011-02-01
Systems And Methods For Common-mode Voltage Reduction In Fully Regenerative Ac Drives App 20100172162 - Tallam; Rangarajan ; et al.	2010-07-08
Systems And Methods For Common-mode Voltage Reduction In Ac Drives App 20100172161 - Tallam; Rangarajan ; et al.	2010-07-08
Systems and methods for common-mode voltage reduction in AC drives Grant 7,738,267 - Tallam , et al. June 15, 2	2010-06-15
Method and apparatus for adjustable voltage/adjustable frequency inverter control Grant 7,626,836 - Leggate , et al. December 1, 2	2009-12-01
System and method for adjustable carrier waveform generator Grant 7,342,380 - Kerkman , et al. March 11, 2	2008-03-11
System And Method For Adjustable Carrier Waveform Generator App 20080054841 - Kerkman; Russel J. ; et al.	2008-03-06
Method and apparatus for adjustable voltage/adjustable frequency inverter control App 20070091653 - Leggate; David ; et al.	2007-04-26
Method and apparatus for controlling reflected voltage using a motor controller Grant 6,819,070 - Kerkman , et al. November 16, 2	2004-11-16
Method and apparatus for controlling reflected voltage using a motor controller App 20040160207 - Kerkman, Russel J. ; et al.	2004-08-19
Method and apparatus for compensating for device dynamics by adjusting inverter carrier frequency Grant 6,617,821 - Kerkman , et al. September 9, 2	2003-09-09
Angle control of modulating wave to reduce reflected wave overvoltage transients Grant 6,541,933 - Leggate , et al. April 1, 2	2003-04-01
Method and apparatus for compensating for device dynamics by adjusting inverter carrier frequency App 20030052642 - Kerkman, Russel J. ; et al.	2003-03-20
Method and apparatus for compensating for device dynamics in inverter based control systems Grant 6,477,067 - Kerkman , et al. November 5, 2	2002-11-05
Method and apparatus for compensating for device dynamics and voltage drop in inverter based control systems Grant 6,469,916 - Kerkman , et al. October 22, 2	2002-10-22
Method and apparatus for determining a critical dwell time for use in motor controls Grant 6,014,497 - Kerkman , et al. January 11, 2	2000-01-11
Apparatus for reducing the effects of turn on delay errors in motor control Grant 5,917,721 - Kerkman , et al. June 29, 1	1999-06-29
Method and apparatus for controlling reflected voltage using a motor controller Grant 5,912,813 - Kerkman , et al. June 15, 1	1999-06-15
Apparatus used with AC motors for compensating for turn on delay errors Grant 5,625,550 - Leggate , et al. April 29, 1	1997-04-29
Compensated feedforward voltage for a PWM AC motor drive Grant 5,329,217 - Kerkman , et al. July 12, 1	1994-07-12

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